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@@ -0,0 +1,486 @@
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/*
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* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
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* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* File: $Id: mbascii.c,v 1.15 2007/02/18 23:46:48 wolti Exp $
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*/
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/* ----------------------- System includes ----------------------------------*/
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#include "stdlib.h"
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#include "string.h"
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/* ----------------------- Platform includes --------------------------------*/
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#include "port.h"
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/* ----------------------- Modbus includes ----------------------------------*/
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#include "mb.h"
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#include "mbconfig.h"
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#include "mbascii.h"
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#include "mbframe.h"
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#include "mbcrc.h"
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#include "mbport.h"
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#if MB_SLAVE_ASCII_ENABLED > 0
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/* ----------------------- Defines ------------------------------------------*/
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#define MB_ASCII_DEFAULT_CR '\r' /*!< Default CR character for Modbus ASCII. */
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#define MB_ASCII_DEFAULT_LF '\n' /*!< Default LF character for Modbus ASCII. */
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#define MB_SER_PDU_SIZE_MIN 3 /*!< Minimum size of a Modbus ASCII frame. */
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#define MB_SER_PDU_SIZE_MAX 256 /*!< Maximum size of a Modbus ASCII frame. */
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#define MB_SER_PDU_SIZE_LRC 1 /*!< Size of LRC field in PDU. */
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#define MB_SER_PDU_ADDR_OFF 0 /*!< Offset of slave address in Ser-PDU. */
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#define MB_SER_PDU_PDU_OFF 1 /*!< Offset of Modbus-PDU in Ser-PDU. */
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/* ----------------------- Type definitions ---------------------------------*/
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typedef enum
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{
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STATE_RX_IDLE, /*!< Receiver is in idle state. */
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STATE_RX_RCV, /*!< Frame is beeing received. */
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STATE_RX_WAIT_EOF /*!< Wait for End of Frame. */
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} eMBRcvState;
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typedef enum
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{
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STATE_TX_IDLE, /*!< Transmitter is in idle state. */
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STATE_TX_START, /*!< Starting transmission (':' sent). */
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STATE_TX_DATA, /*!< Sending of data (Address, Data, LRC). */
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STATE_TX_END, /*!< End of transmission. */
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STATE_TX_NOTIFY /*!< Notify sender that the frame has been sent. */
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} eMBSndState;
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typedef enum
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{
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BYTE_HIGH_NIBBLE, /*!< Character for high nibble of byte. */
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BYTE_LOW_NIBBLE /*!< Character for low nibble of byte. */
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} eMBBytePos;
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/* ----------------------- Static functions ---------------------------------*/
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static UCHAR prvucMBCHAR2BIN( UCHAR ucCharacter );
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static UCHAR prvucMBBIN2CHAR( UCHAR ucByte );
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static UCHAR prvucMBLRC( UCHAR * pucFrame, USHORT usLen );
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/* ----------------------- Static variables ---------------------------------*/
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static volatile eMBSndState eSndState;
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static volatile eMBRcvState eRcvState;
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/* We reuse the Modbus RTU buffer because only one buffer is needed and the
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* RTU buffer is bigger. */
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extern volatile UCHAR ucRTUBuf[];
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static volatile UCHAR *ucASCIIBuf = ucRTUBuf;
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static volatile USHORT usRcvBufferPos;
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static volatile eMBBytePos eBytePos;
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static volatile UCHAR *pucSndBufferCur;
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static volatile USHORT usSndBufferCount;
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static volatile UCHAR ucLRC;
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static volatile UCHAR ucMBLFCharacter;
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/* ----------------------- Start implementation -----------------------------*/
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eMBErrorCode
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eMBASCIIInit( UCHAR ucSlaveAddress, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
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{
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eMBErrorCode eStatus = MB_ENOERR;
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( void )ucSlaveAddress;
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ENTER_CRITICAL_SECTION( );
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ucMBLFCharacter = MB_ASCII_DEFAULT_LF;
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if( xMBPortSerialInit( ucPort, ulBaudRate, 7, eParity ) != TRUE )
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{
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eStatus = MB_EPORTERR;
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}
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else if( xMBPortTimersInit( MB_ASCII_TIMEOUT_SEC * 20000UL ) != TRUE )
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{
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eStatus = MB_EPORTERR;
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}
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EXIT_CRITICAL_SECTION( );
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return eStatus;
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}
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void
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eMBASCIIStart( void )
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{
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ENTER_CRITICAL_SECTION( );
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vMBPortSerialEnable( TRUE, FALSE );
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eRcvState = STATE_RX_IDLE;
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EXIT_CRITICAL_SECTION( );
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/* No special startup required for ASCII. */
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( void )xMBPortEventPost( EV_READY );
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}
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void
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eMBASCIIStop( void )
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{
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ENTER_CRITICAL_SECTION( );
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vMBPortSerialEnable( FALSE, FALSE );
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vMBPortTimersDisable( );
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EXIT_CRITICAL_SECTION( );
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}
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eMBErrorCode
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eMBASCIIReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength )
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{
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eMBErrorCode eStatus = MB_ENOERR;
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ENTER_CRITICAL_SECTION( );
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assert( usRcvBufferPos < MB_SER_PDU_SIZE_MAX );
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/* Length and CRC check */
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if( ( usRcvBufferPos >= MB_SER_PDU_SIZE_MIN )
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&& ( prvucMBLRC( ( UCHAR * ) ucASCIIBuf, usRcvBufferPos ) == 0 ) )
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{
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/* Save the address field. All frames are passed to the upper layed
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* and the decision if a frame is used is done there.
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*/
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*pucRcvAddress = ucASCIIBuf[MB_SER_PDU_ADDR_OFF];
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/* Total length of Modbus-PDU is Modbus-Serial-Line-PDU minus
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* size of address field and CRC checksum.
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*/
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*pusLength = ( USHORT )( usRcvBufferPos - MB_SER_PDU_PDU_OFF - MB_SER_PDU_SIZE_LRC );
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/* Return the start of the Modbus PDU to the caller. */
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*pucFrame = ( UCHAR * ) & ucASCIIBuf[MB_SER_PDU_PDU_OFF];
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}
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else
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{
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eStatus = MB_EIO;
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}
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EXIT_CRITICAL_SECTION( );
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return eStatus;
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}
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eMBErrorCode
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eMBASCIISend( UCHAR ucSlaveAddress, const UCHAR * pucFrame, USHORT usLength )
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{
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eMBErrorCode eStatus = MB_ENOERR;
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UCHAR usLRC;
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ENTER_CRITICAL_SECTION( );
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/* Check if the receiver is still in idle state. If not we where too
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* slow with processing the received frame and the master sent another
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* frame on the network. We have to abort sending the frame.
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*/
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if( eRcvState == STATE_RX_IDLE )
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{
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/* First byte before the Modbus-PDU is the slave address. */
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pucSndBufferCur = ( UCHAR * ) pucFrame - 1;
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usSndBufferCount = 1;
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/* Now copy the Modbus-PDU into the Modbus-Serial-Line-PDU. */
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pucSndBufferCur[MB_SER_PDU_ADDR_OFF] = ucSlaveAddress;
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usSndBufferCount += usLength;
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/* Calculate LRC checksum for Modbus-Serial-Line-PDU. */
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usLRC = prvucMBLRC( ( UCHAR * ) pucSndBufferCur, usSndBufferCount );
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ucASCIIBuf[usSndBufferCount++] = usLRC;
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/* Activate the transmitter. */
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eSndState = STATE_TX_START;
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vMBPortSerialEnable( FALSE, TRUE );
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}
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else
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{
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eStatus = MB_EIO;
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}
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EXIT_CRITICAL_SECTION( );
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return eStatus;
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}
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BOOL
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xMBASCIIReceiveFSM( void )
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{
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BOOL xNeedPoll = FALSE;
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UCHAR ucByte;
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UCHAR ucResult;
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assert( eSndState == STATE_TX_IDLE );
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( void )xMBPortSerialGetByte( ( CHAR * ) & ucByte );
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switch ( eRcvState )
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{
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/* A new character is received. If the character is a ':' the input
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* buffer is cleared. A CR-character signals the end of the data
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* block. Other characters are part of the data block and their
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* ASCII value is converted back to a binary representation.
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*/
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case STATE_RX_RCV:
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/* Enable timer for character timeout. */
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vMBPortTimersEnable( );
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if( ucByte == ':' )
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{
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/* Empty receive buffer. */
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eBytePos = BYTE_HIGH_NIBBLE;
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usRcvBufferPos = 0;
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}
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else if( ucByte == MB_ASCII_DEFAULT_CR )
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{
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eRcvState = STATE_RX_WAIT_EOF;
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}
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else
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{
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ucResult = prvucMBCHAR2BIN( ucByte );
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switch ( eBytePos )
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{
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/* High nibble of the byte comes first. We check for
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* a buffer overflow here. */
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case BYTE_HIGH_NIBBLE:
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if( usRcvBufferPos < MB_SER_PDU_SIZE_MAX )
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{
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ucASCIIBuf[usRcvBufferPos] = ( UCHAR )( ucResult << 4 );
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eBytePos = BYTE_LOW_NIBBLE;
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break;
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}
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else
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{
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/* not handled in Modbus specification but seems
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* a resonable implementation. */
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eRcvState = STATE_RX_IDLE;
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/* Disable previously activated timer because of error state. */
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vMBPortTimersDisable( );
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}
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break;
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case BYTE_LOW_NIBBLE:
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ucASCIIBuf[usRcvBufferPos] |= ucResult;
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usRcvBufferPos++;
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eBytePos = BYTE_HIGH_NIBBLE;
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break;
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}
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}
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break;
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case STATE_RX_WAIT_EOF:
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if( ucByte == ucMBLFCharacter )
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{
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/* Disable character timeout timer because all characters are
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* received. */
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vMBPortTimersDisable( );
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/* Receiver is again in idle state. */
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eRcvState = STATE_RX_IDLE;
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/* Notify the caller of eMBASCIIReceive that a new frame
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* was received. */
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xNeedPoll = xMBPortEventPost( EV_FRAME_RECEIVED );
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}
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else if( ucByte == ':' )
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{
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/* Empty receive buffer and back to receive state. */
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eBytePos = BYTE_HIGH_NIBBLE;
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usRcvBufferPos = 0;
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eRcvState = STATE_RX_RCV;
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/* Enable timer for character timeout. */
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vMBPortTimersEnable( );
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}
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else
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{
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/* Frame is not okay. Delete entire frame. */
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eRcvState = STATE_RX_IDLE;
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}
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break;
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case STATE_RX_IDLE:
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if( ucByte == ':' )
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{
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/* Enable timer for character timeout. */
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vMBPortTimersEnable( );
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/* Reset the input buffers to store the frame. */
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usRcvBufferPos = 0;;
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eBytePos = BYTE_HIGH_NIBBLE;
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eRcvState = STATE_RX_RCV;
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}
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break;
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}
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return xNeedPoll;
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}
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BOOL
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xMBASCIITransmitFSM( void )
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{
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BOOL xNeedPoll = FALSE;
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UCHAR ucByte;
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assert( eRcvState == STATE_RX_IDLE );
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switch ( eSndState )
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{
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/* Start of transmission. The start of a frame is defined by sending
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* the character ':'. */
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case STATE_TX_START:
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ucByte = ':';
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xMBPortSerialPutByte( ( CHAR )ucByte );
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eSndState = STATE_TX_DATA;
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eBytePos = BYTE_HIGH_NIBBLE;
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break;
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/* Send the data block. Each data byte is encoded as a character hex
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* stream with the high nibble sent first and the low nibble sent
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* last. If all data bytes are exhausted we send a '\r' character
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* to end the transmission. */
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case STATE_TX_DATA:
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if( usSndBufferCount > 0 )
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{
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switch ( eBytePos )
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{
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case BYTE_HIGH_NIBBLE:
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ucByte = prvucMBBIN2CHAR( ( UCHAR )( *pucSndBufferCur >> 4 ) );
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xMBPortSerialPutByte( ( CHAR ) ucByte );
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eBytePos = BYTE_LOW_NIBBLE;
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break;
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case BYTE_LOW_NIBBLE:
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ucByte = prvucMBBIN2CHAR( ( UCHAR )( *pucSndBufferCur & 0x0F ) );
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xMBPortSerialPutByte( ( CHAR )ucByte );
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pucSndBufferCur++;
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eBytePos = BYTE_HIGH_NIBBLE;
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usSndBufferCount--;
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break;
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}
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}
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else
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{
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xMBPortSerialPutByte( MB_ASCII_DEFAULT_CR );
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eSndState = STATE_TX_END;
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}
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break;
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/* Finish the frame by sending a LF character. */
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case STATE_TX_END:
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xMBPortSerialPutByte( ( CHAR )ucMBLFCharacter );
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/* We need another state to make sure that the CR character has
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* been sent. */
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eSndState = STATE_TX_NOTIFY;
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break;
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/* Notify the task which called eMBASCIISend that the frame has
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* been sent. */
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case STATE_TX_NOTIFY:
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eSndState = STATE_TX_IDLE;
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xNeedPoll = xMBPortEventPost( EV_FRAME_SENT );
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/* Disable transmitter. This prevents another transmit buffer
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* empty interrupt. */
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vMBPortSerialEnable( TRUE, FALSE );
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eSndState = STATE_TX_IDLE;
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break;
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/* We should not get a transmitter event if the transmitter is in
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* idle state. */
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case STATE_TX_IDLE:
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/* enable receiver/disable transmitter. */
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||||
vMBPortSerialEnable( TRUE, FALSE );
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break;
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||||
}
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||||
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||||
return xNeedPoll;
|
||||
}
|
||||
|
||||
BOOL
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||||
xMBASCIITimerT1SExpired( void )
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||||
{
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||||
switch ( eRcvState )
|
||||
{
|
||||
/* If we have a timeout we go back to the idle state and wait for
|
||||
* the next frame.
|
||||
*/
|
||||
case STATE_RX_RCV:
|
||||
case STATE_RX_WAIT_EOF:
|
||||
eRcvState = STATE_RX_IDLE;
|
||||
break;
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||||
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||||
default:
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assert( ( eRcvState == STATE_RX_RCV ) || ( eRcvState == STATE_RX_WAIT_EOF ) );
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||||
break;
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||||
}
|
||||
vMBPortTimersDisable( );
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||||
|
||||
/* no context switch required. */
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
||||
static UCHAR
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prvucMBCHAR2BIN( UCHAR ucCharacter )
|
||||
{
|
||||
if( ( ucCharacter >= '0' ) && ( ucCharacter <= '9' ) )
|
||||
{
|
||||
return ( UCHAR )( ucCharacter - '0' );
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||||
}
|
||||
else if( ( ucCharacter >= 'A' ) && ( ucCharacter <= 'F' ) )
|
||||
{
|
||||
return ( UCHAR )( ucCharacter - 'A' + 0x0A );
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0xFF;
|
||||
}
|
||||
}
|
||||
|
||||
static UCHAR
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prvucMBBIN2CHAR( UCHAR ucByte )
|
||||
{
|
||||
if( ucByte <= 0x09 )
|
||||
{
|
||||
return ( UCHAR )( '0' + ucByte );
|
||||
}
|
||||
else if( ( ucByte >= 0x0A ) && ( ucByte <= 0x0F ) )
|
||||
{
|
||||
return ( UCHAR )( ucByte - 0x0A + 'A' );
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Programming error. */
|
||||
assert( 0 );
|
||||
}
|
||||
return '0';
|
||||
}
|
||||
|
||||
|
||||
static UCHAR
|
||||
prvucMBLRC( UCHAR * pucFrame, USHORT usLen )
|
||||
{
|
||||
UCHAR ucLRC = 0; /* LRC char initialized */
|
||||
|
||||
while( usLen-- )
|
||||
{
|
||||
ucLRC += *pucFrame++; /* Add buffer byte without carry */
|
||||
}
|
||||
|
||||
/* Return twos complement */
|
||||
ucLRC = ( UCHAR ) ( -( ( CHAR ) ucLRC ) );
|
||||
return ucLRC;
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,56 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbascii.h,v 1.8 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
#ifndef _MB_ASCII_H
|
||||
#define _MB_ASCII_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
|
||||
#if MB_SLAVE_ASCII_ENABLED > 0
|
||||
eMBErrorCode eMBASCIIInit( UCHAR slaveAddress, UCHAR ucPort,
|
||||
ULONG ulBaudRate, eMBParity eParity );
|
||||
void eMBASCIIStart( void );
|
||||
void eMBASCIIStop( void );
|
||||
|
||||
eMBErrorCode eMBASCIIReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame,
|
||||
USHORT * pusLength );
|
||||
eMBErrorCode eMBASCIISend( UCHAR slaveAddress, const UCHAR * pucFrame,
|
||||
USHORT usLength );
|
||||
BOOL xMBASCIIReceiveFSM( void );
|
||||
BOOL xMBASCIITransmitFSM( void );
|
||||
BOOL xMBASCIITimerT1SExpired( void );
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,269 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfunccoils.c,v 1.8 2007/02/18 23:47:16 wolti Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbconfig.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF )
|
||||
#define MB_PDU_FUNC_READ_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_READ_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_READ_COILCNT_MAX ( 0x07D0 )
|
||||
|
||||
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF )
|
||||
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
|
||||
|
||||
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_SIZE_MIN ( 5 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_COILCNT_MAX ( 0x07B0 )
|
||||
|
||||
/* ----------------------- Static functions ---------------------------------*/
|
||||
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
|
||||
#if MB_FUNC_READ_COILS_ENABLED > 0
|
||||
|
||||
eMBException
|
||||
eMBFuncReadCoils( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
USHORT usCoilCount;
|
||||
UCHAR ucNBytes;
|
||||
UCHAR *pucFrameCur;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usCoilCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_COILCNT_OFF] << 8 );
|
||||
usCoilCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_COILCNT_OFF + 1] );
|
||||
|
||||
/* Check if the number of registers to read is valid. If not
|
||||
* return Modbus illegal data value exception.
|
||||
*/
|
||||
if( ( usCoilCount >= 1 ) &&
|
||||
( usCoilCount < MB_PDU_FUNC_READ_COILCNT_MAX ) )
|
||||
{
|
||||
/* Set the current PDU data pointer to the beginning. */
|
||||
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
|
||||
*usLen = MB_PDU_FUNC_OFF;
|
||||
|
||||
/* First byte contains the function code. */
|
||||
*pucFrameCur++ = MB_FUNC_READ_COILS;
|
||||
*usLen += 1;
|
||||
|
||||
/* Test if the quantity of coils is a multiple of 8. If not last
|
||||
* byte is only partially field with unused coils set to zero. */
|
||||
if( ( usCoilCount & 0x0007 ) != 0 )
|
||||
{
|
||||
ucNBytes = ( UCHAR )( usCoilCount / 8 + 1 );
|
||||
}
|
||||
else
|
||||
{
|
||||
ucNBytes = ( UCHAR )( usCoilCount / 8 );
|
||||
}
|
||||
*pucFrameCur++ = ucNBytes;
|
||||
*usLen += 1;
|
||||
|
||||
eRegStatus =
|
||||
eMBRegCoilsCB( pucFrameCur, usRegAddress, usCoilCount,
|
||||
MB_REG_READ );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
else
|
||||
{
|
||||
/* The response contains the function code, the starting address
|
||||
* and the quantity of registers. We reuse the old values in the
|
||||
* buffer because they are still valid. */
|
||||
*usLen += ucNBytes;;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid read coil register request because the length
|
||||
* is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_COIL_ENABLED > 0
|
||||
eMBException
|
||||
eMBFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
UCHAR ucBuf[2];
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
if( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF + 1] == 0x00 ) &&
|
||||
( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF ) ||
|
||||
( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0x00 ) ) )
|
||||
{
|
||||
ucBuf[1] = 0;
|
||||
if( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF )
|
||||
{
|
||||
ucBuf[0] = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
ucBuf[0] = 0;
|
||||
}
|
||||
eRegStatus =
|
||||
eMBRegCoilsCB( &ucBuf[0], usRegAddress, 1, MB_REG_WRITE );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid write coil register request because the length
|
||||
* is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
|
||||
eMBException
|
||||
eMBFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
USHORT usCoilCnt;
|
||||
UCHAR ucByteCount;
|
||||
UCHAR ucByteCountVerify;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen > ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usCoilCnt = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF] << 8 );
|
||||
usCoilCnt |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF + 1] );
|
||||
|
||||
ucByteCount = pucFrame[MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF];
|
||||
|
||||
/* Compute the number of expected bytes in the request. */
|
||||
if( ( usCoilCnt & 0x0007 ) != 0 )
|
||||
{
|
||||
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 + 1 );
|
||||
}
|
||||
else
|
||||
{
|
||||
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 );
|
||||
}
|
||||
|
||||
if( ( usCoilCnt >= 1 ) &&
|
||||
( usCoilCnt <= MB_PDU_FUNC_WRITE_MUL_COILCNT_MAX ) &&
|
||||
( ucByteCountVerify == ucByteCount ) )
|
||||
{
|
||||
eRegStatus =
|
||||
eMBRegCoilsCB( &pucFrame[MB_PDU_FUNC_WRITE_MUL_VALUES_OFF],
|
||||
usRegAddress, usCoilCnt, MB_REG_WRITE );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
else
|
||||
{
|
||||
/* The response contains the function code, the starting address
|
||||
* and the quantity of registers. We reuse the old values in the
|
||||
* buffer because they are still valid. */
|
||||
*usLen = MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid write coil register request because the length
|
||||
* is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,390 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfunccoils_m.c,v 1.60 2013/10/12 15:10:12 Armink Add Master Functions
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mb_m.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbconfig.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_REQ_READ_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_REQ_READ_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_READ_COILCNT_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
|
||||
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
|
||||
|
||||
#define MB_PDU_REQ_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF )
|
||||
#define MB_PDU_REQ_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_REQ_WRITE_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF )
|
||||
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
|
||||
|
||||
#define MB_PDU_REQ_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF )
|
||||
#define MB_PDU_REQ_WRITE_MUL_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
|
||||
#define MB_PDU_REQ_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
|
||||
#define MB_PDU_REQ_WRITE_MUL_SIZE_MIN ( 5 )
|
||||
#define MB_PDU_REQ_WRITE_MUL_COILCNT_MAX ( 0x07B0 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_SIZE ( 5 )
|
||||
|
||||
/* ----------------------- Static functions ---------------------------------*/
|
||||
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
|
||||
#if MB_FUNC_READ_COILS_ENABLED > 0
|
||||
|
||||
/**
|
||||
* This function will request read coil.
|
||||
*
|
||||
* @param ucSndAddr salve address
|
||||
* @param usCoilAddr coil start address
|
||||
* @param usNCoils coil total number
|
||||
* @param lTimeOut timeout (-1 will waiting forever)
|
||||
*
|
||||
* @return error code
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadCoils( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usNCoils ,LONG lTimeOut )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
|
||||
|
||||
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
|
||||
else
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
vMBMasterSetDestAddress(ucSndAddr);
|
||||
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_COILS;
|
||||
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usCoilAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usCoilAddr;
|
||||
ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF ] = usNCoils >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF + 1] = usNCoils;
|
||||
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
|
||||
eErrStatus = eMBMasterWaitRequestFinish( );
|
||||
|
||||
}
|
||||
return eErrStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncReadCoils( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
USHORT usRegAddress;
|
||||
USHORT usCoilCount;
|
||||
UCHAR ucByteCount;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
/* If this request is broadcast, and it's read mode. This request don't need execute. */
|
||||
if ( xMBMasterRequestIsBroadcast() )
|
||||
{
|
||||
eStatus = MB_EX_NONE;
|
||||
}
|
||||
else if ( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usCoilCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF] << 8 );
|
||||
usCoilCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_COILCNT_OFF + 1] );
|
||||
|
||||
/* Test if the quantity of coils is a multiple of 8. If not last
|
||||
* byte is only partially field with unused coils set to zero. */
|
||||
if( ( usCoilCount & 0x0007 ) != 0 )
|
||||
{
|
||||
ucByteCount = ( UCHAR )( usCoilCount / 8 + 1 );
|
||||
}
|
||||
else
|
||||
{
|
||||
ucByteCount = ( UCHAR )( usCoilCount / 8 );
|
||||
}
|
||||
|
||||
/* Check if the number of registers to read is valid. If not
|
||||
* return Modbus illegal data value exception.
|
||||
*/
|
||||
if( ( usCoilCount >= 1 ) &&
|
||||
( ucByteCount == pucFrame[MB_PDU_FUNC_READ_COILCNT_OFF] ) )
|
||||
{
|
||||
/* Make callback to fill the buffer. */
|
||||
eRegStatus = eMBMasterRegCoilsCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usCoilCount, MB_REG_READ );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid read coil register request because the length
|
||||
* is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_COIL_ENABLED > 0
|
||||
|
||||
/**
|
||||
* This function will request write one coil.
|
||||
*
|
||||
* @param ucSndAddr salve address
|
||||
* @param usCoilAddr coil start address
|
||||
* @param usCoilData data to be written
|
||||
* @param lTimeOut timeout (-1 will waiting forever)
|
||||
*
|
||||
* @return error code
|
||||
*
|
||||
* @see eMBMasterReqWriteMultipleCoils
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqWriteCoil( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usCoilData, LONG lTimeOut )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
|
||||
|
||||
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( ( usCoilData != 0xFF00 ) && ( usCoilData != 0x0000 ) ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
|
||||
else
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
vMBMasterSetDestAddress(ucSndAddr);
|
||||
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_SINGLE_COIL;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF] = usCoilAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF + 1] = usCoilAddr;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF ] = usCoilData >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF + 1] = usCoilData;
|
||||
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_SIZE );
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
|
||||
eErrStatus = eMBMasterWaitRequestFinish( );
|
||||
}
|
||||
return eErrStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
UCHAR ucBuf[2];
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
if( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF + 1] == 0x00 ) &&
|
||||
( ( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF ) ||
|
||||
( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0x00 ) ) )
|
||||
{
|
||||
ucBuf[1] = 0;
|
||||
if( pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF] == 0xFF )
|
||||
{
|
||||
ucBuf[0] = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
ucBuf[0] = 0;
|
||||
}
|
||||
eRegStatus =
|
||||
eMBMasterRegCoilsCB( &ucBuf[0], usRegAddress, 1, MB_REG_WRITE );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid write coil register request because the length
|
||||
* is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
|
||||
|
||||
/**
|
||||
* This function will request write multiple coils.
|
||||
*
|
||||
* @param ucSndAddr salve address
|
||||
* @param usCoilAddr coil start address
|
||||
* @param usNCoils coil total number
|
||||
* @param usCoilData data to be written
|
||||
* @param lTimeOut timeout (-1 will waiting forever)
|
||||
*
|
||||
* @return error code
|
||||
*
|
||||
* @see eMBMasterReqWriteCoil
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqWriteMultipleCoils( UCHAR ucSndAddr,
|
||||
USHORT usCoilAddr, USHORT usNCoils, UCHAR * pucDataBuffer, LONG lTimeOut)
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
USHORT usRegIndex = 0;
|
||||
UCHAR ucByteCount;
|
||||
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
|
||||
|
||||
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( usNCoils > MB_PDU_REQ_WRITE_MUL_COILCNT_MAX ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
|
||||
else
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
vMBMasterSetDestAddress(ucSndAddr);
|
||||
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_MULTIPLE_COILS;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF] = usCoilAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF + 1] = usCoilAddr;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_COILCNT_OFF] = usNCoils >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_COILCNT_OFF + 1] = usNCoils ;
|
||||
if( ( usNCoils & 0x0007 ) != 0 )
|
||||
{
|
||||
ucByteCount = ( UCHAR )( usNCoils / 8 + 1 );
|
||||
}
|
||||
else
|
||||
{
|
||||
ucByteCount = ( UCHAR )( usNCoils / 8 );
|
||||
}
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF] = ucByteCount;
|
||||
ucMBFrame += MB_PDU_REQ_WRITE_MUL_VALUES_OFF;
|
||||
while( ucByteCount > usRegIndex)
|
||||
{
|
||||
*ucMBFrame++ = pucDataBuffer[usRegIndex++];
|
||||
}
|
||||
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_MUL_SIZE_MIN + ucByteCount );
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
|
||||
eErrStatus = eMBMasterWaitRequestFinish( );
|
||||
}
|
||||
return eErrStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
USHORT usCoilCnt;
|
||||
UCHAR ucByteCount;
|
||||
UCHAR ucByteCountVerify;
|
||||
UCHAR *ucMBFrame;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
/* If this request is broadcast, the *usLen is not need check. */
|
||||
if( ( *usLen == MB_PDU_FUNC_WRITE_MUL_SIZE ) || xMBMasterRequestIsBroadcast() )
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usCoilCnt = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF] << 8 );
|
||||
usCoilCnt |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_COILCNT_OFF + 1] );
|
||||
|
||||
ucByteCount = ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF];
|
||||
|
||||
/* Compute the number of expected bytes in the request. */
|
||||
if( ( usCoilCnt & 0x0007 ) != 0 )
|
||||
{
|
||||
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 + 1 );
|
||||
}
|
||||
else
|
||||
{
|
||||
ucByteCountVerify = ( UCHAR )( usCoilCnt / 8 );
|
||||
}
|
||||
|
||||
if( ( usCoilCnt >= 1 ) && ( ucByteCountVerify == ucByteCount ) )
|
||||
{
|
||||
eRegStatus =
|
||||
eMBMasterRegCoilsCB( &ucMBFrame[MB_PDU_REQ_WRITE_MUL_VALUES_OFF],
|
||||
usRegAddress, usCoilCnt, MB_REG_WRITE );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid write coil register request because the length
|
||||
* is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,29 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfuncdiag.c,v 1.3 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
@@ -0,0 +1,133 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbconfig.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF )
|
||||
#define MB_PDU_FUNC_READ_DISCCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_READ_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_READ_DISCCNT_MAX ( 0x07D0 )
|
||||
|
||||
/* ----------------------- Static functions ---------------------------------*/
|
||||
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
|
||||
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
|
||||
|
||||
eMBException
|
||||
eMBFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
USHORT usDiscreteCnt;
|
||||
UCHAR ucNBytes;
|
||||
UCHAR *pucFrameCur;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usDiscreteCnt = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_DISCCNT_OFF] << 8 );
|
||||
usDiscreteCnt |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_DISCCNT_OFF + 1] );
|
||||
|
||||
/* Check if the number of registers to read is valid. If not
|
||||
* return Modbus illegal data value exception.
|
||||
*/
|
||||
if( ( usDiscreteCnt >= 1 ) &&
|
||||
( usDiscreteCnt < MB_PDU_FUNC_READ_DISCCNT_MAX ) )
|
||||
{
|
||||
/* Set the current PDU data pointer to the beginning. */
|
||||
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
|
||||
*usLen = MB_PDU_FUNC_OFF;
|
||||
|
||||
/* First byte contains the function code. */
|
||||
*pucFrameCur++ = MB_FUNC_READ_DISCRETE_INPUTS;
|
||||
*usLen += 1;
|
||||
|
||||
/* Test if the quantity of coils is a multiple of 8. If not last
|
||||
* byte is only partially field with unused coils set to zero. */
|
||||
if( ( usDiscreteCnt & 0x0007 ) != 0 )
|
||||
{
|
||||
ucNBytes = ( UCHAR ) ( usDiscreteCnt / 8 + 1 );
|
||||
}
|
||||
else
|
||||
{
|
||||
ucNBytes = ( UCHAR ) ( usDiscreteCnt / 8 );
|
||||
}
|
||||
*pucFrameCur++ = ucNBytes;
|
||||
*usLen += 1;
|
||||
|
||||
eRegStatus =
|
||||
eMBRegDiscreteCB( pucFrameCur, usRegAddress, usDiscreteCnt );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
else
|
||||
{
|
||||
/* The response contains the function code, the starting address
|
||||
* and the quantity of registers. We reuse the old values in the
|
||||
* buffer because they are still valid. */
|
||||
*usLen += ucNBytes;;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid read coil register request because the length
|
||||
* is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,162 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfuncdisc_m.c,v 1.60 2013/10/15 8:48:20 Armink Add Master Functions Exp $
|
||||
*/
|
||||
|
||||
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mb_m.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbconfig.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_REQ_READ_DISCCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_REQ_READ_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_READ_DISCCNT_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
|
||||
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
|
||||
|
||||
/* ----------------------- Static functions ---------------------------------*/
|
||||
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
|
||||
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
|
||||
|
||||
/**
|
||||
* This function will request read discrete inputs.
|
||||
*
|
||||
* @param ucSndAddr salve address
|
||||
* @param usDiscreteAddr discrete start address
|
||||
* @param usNDiscreteIn discrete total number
|
||||
* @param lTimeOut timeout (-1 will waiting forever)
|
||||
*
|
||||
* @return error code
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadDiscreteInputs( UCHAR ucSndAddr, USHORT usDiscreteAddr, USHORT usNDiscreteIn, LONG lTimeOut )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
|
||||
|
||||
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
|
||||
else
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
vMBMasterSetDestAddress(ucSndAddr);
|
||||
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_DISCRETE_INPUTS;
|
||||
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usDiscreteAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usDiscreteAddr;
|
||||
ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF ] = usNDiscreteIn >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF + 1] = usNDiscreteIn;
|
||||
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
|
||||
eErrStatus = eMBMasterWaitRequestFinish( );
|
||||
}
|
||||
return eErrStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
USHORT usDiscreteCnt;
|
||||
UCHAR ucNBytes;
|
||||
UCHAR *ucMBFrame;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
/* If this request is broadcast, and it's read mode. This request don't need execute. */
|
||||
if ( xMBMasterRequestIsBroadcast() )
|
||||
{
|
||||
eStatus = MB_EX_NONE;
|
||||
}
|
||||
else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usDiscreteCnt = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF] << 8 );
|
||||
usDiscreteCnt |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_DISCCNT_OFF + 1] );
|
||||
|
||||
/* Test if the quantity of coils is a multiple of 8. If not last
|
||||
* byte is only partially field with unused coils set to zero. */
|
||||
if( ( usDiscreteCnt & 0x0007 ) != 0 )
|
||||
{
|
||||
ucNBytes = ( UCHAR )( usDiscreteCnt / 8 + 1 );
|
||||
}
|
||||
else
|
||||
{
|
||||
ucNBytes = ( UCHAR )( usDiscreteCnt / 8 );
|
||||
}
|
||||
|
||||
/* Check if the number of registers to read is valid. If not
|
||||
* return Modbus illegal data value exception.
|
||||
*/
|
||||
if ((usDiscreteCnt >= 1) && ucNBytes == pucFrame[MB_PDU_FUNC_READ_DISCCNT_OFF])
|
||||
{
|
||||
/* Make callback to fill the buffer. */
|
||||
eRegStatus = eMBMasterRegDiscreteCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usDiscreteCnt );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid read coil register request because the length
|
||||
* is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,308 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfuncholding.c,v 1.12 2007/02/18 23:48:22 wolti Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbconfig.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
|
||||
#define MB_PDU_FUNC_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_READ_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_READ_REGCNT_MAX ( 0x007D )
|
||||
|
||||
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
|
||||
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
|
||||
|
||||
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_SIZE_MIN ( 5 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_REGCNT_MAX ( 0x0078 )
|
||||
|
||||
#define MB_PDU_FUNC_READWRITE_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 4 )
|
||||
#define MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF ( MB_PDU_DATA_OFF + 6 )
|
||||
#define MB_PDU_FUNC_READWRITE_BYTECNT_OFF ( MB_PDU_DATA_OFF + 8 )
|
||||
#define MB_PDU_FUNC_READWRITE_WRITE_VALUES_OFF ( MB_PDU_DATA_OFF + 9 )
|
||||
#define MB_PDU_FUNC_READWRITE_SIZE_MIN ( 9 )
|
||||
|
||||
/* ----------------------- Static functions ---------------------------------*/
|
||||
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
|
||||
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
|
||||
|
||||
eMBException
|
||||
eMBFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen == ( MB_PDU_FUNC_WRITE_SIZE + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
/* Make callback to update the value. */
|
||||
eRegStatus = eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF],
|
||||
usRegAddress, 1, MB_REG_WRITE );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid request because the length is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
|
||||
eMBException
|
||||
eMBFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
USHORT usRegCount;
|
||||
UCHAR ucRegByteCount;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen >= ( MB_PDU_FUNC_WRITE_MUL_SIZE_MIN + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF] << 8 );
|
||||
usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF + 1] );
|
||||
|
||||
ucRegByteCount = pucFrame[MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF];
|
||||
|
||||
if( ( usRegCount >= 1 ) &&
|
||||
( usRegCount <= MB_PDU_FUNC_WRITE_MUL_REGCNT_MAX ) &&
|
||||
( ucRegByteCount == ( UCHAR ) ( 2 * usRegCount ) ) )
|
||||
{
|
||||
/* Make callback to update the register values. */
|
||||
eRegStatus =
|
||||
eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_MUL_VALUES_OFF],
|
||||
usRegAddress, usRegCount, MB_REG_WRITE );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
else
|
||||
{
|
||||
/* The response contains the function code, the starting
|
||||
* address and the quantity of registers. We reuse the
|
||||
* old values in the buffer because they are still valid.
|
||||
*/
|
||||
*usLen = MB_PDU_FUNC_WRITE_MUL_BYTECNT_OFF;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid request because the length is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_READ_HOLDING_ENABLED > 0
|
||||
|
||||
eMBException
|
||||
eMBFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
USHORT usRegCount;
|
||||
UCHAR *pucFrameCur;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF] << 8 );
|
||||
usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF + 1] );
|
||||
|
||||
/* Check if the number of registers to read is valid. If not
|
||||
* return Modbus illegal data value exception.
|
||||
*/
|
||||
if( ( usRegCount >= 1 ) && ( usRegCount <= MB_PDU_FUNC_READ_REGCNT_MAX ) )
|
||||
{
|
||||
/* Set the current PDU data pointer to the beginning. */
|
||||
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
|
||||
*usLen = MB_PDU_FUNC_OFF;
|
||||
|
||||
/* First byte contains the function code. */
|
||||
*pucFrameCur++ = MB_FUNC_READ_HOLDING_REGISTER;
|
||||
*usLen += 1;
|
||||
|
||||
/* Second byte in the response contain the number of bytes. */
|
||||
*pucFrameCur++ = ( UCHAR ) ( usRegCount * 2 );
|
||||
*usLen += 1;
|
||||
|
||||
/* Make callback to fill the buffer. */
|
||||
eRegStatus = eMBRegHoldingCB( pucFrameCur, usRegAddress, usRegCount, MB_REG_READ );
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
else
|
||||
{
|
||||
*usLen += usRegCount * 2;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid request because the length is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
|
||||
|
||||
eMBException
|
||||
eMBFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegReadAddress;
|
||||
USHORT usRegReadCount;
|
||||
USHORT usRegWriteAddress;
|
||||
USHORT usRegWriteCount;
|
||||
UCHAR ucRegWriteByteCount;
|
||||
UCHAR *pucFrameCur;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen >= ( MB_PDU_FUNC_READWRITE_SIZE_MIN + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegReadAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_ADDR_OFF] << 8U );
|
||||
usRegReadAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_ADDR_OFF + 1] );
|
||||
usRegReadAddress++;
|
||||
|
||||
usRegReadCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF] << 8U );
|
||||
usRegReadCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_READ_REGCNT_OFF + 1] );
|
||||
|
||||
usRegWriteAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF] << 8U );
|
||||
usRegWriteAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_ADDR_OFF + 1] );
|
||||
usRegWriteAddress++;
|
||||
|
||||
usRegWriteCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF] << 8U );
|
||||
usRegWriteCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READWRITE_WRITE_REGCNT_OFF + 1] );
|
||||
|
||||
ucRegWriteByteCount = pucFrame[MB_PDU_FUNC_READWRITE_BYTECNT_OFF];
|
||||
|
||||
if( ( usRegReadCount >= 1 ) && ( usRegReadCount <= 0x7D ) &&
|
||||
( usRegWriteCount >= 1 ) && ( usRegWriteCount <= 0x79 ) &&
|
||||
( ( 2 * usRegWriteCount ) == ucRegWriteByteCount ) )
|
||||
{
|
||||
/* Make callback to update the register values. */
|
||||
eRegStatus = eMBRegHoldingCB( &pucFrame[MB_PDU_FUNC_READWRITE_WRITE_VALUES_OFF],
|
||||
usRegWriteAddress, usRegWriteCount, MB_REG_WRITE );
|
||||
|
||||
if( eRegStatus == MB_ENOERR )
|
||||
{
|
||||
/* Set the current PDU data pointer to the beginning. */
|
||||
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
|
||||
*usLen = MB_PDU_FUNC_OFF;
|
||||
|
||||
/* First byte contains the function code. */
|
||||
*pucFrameCur++ = MB_FUNC_READWRITE_MULTIPLE_REGISTERS;
|
||||
*usLen += 1;
|
||||
|
||||
/* Second byte in the response contain the number of bytes. */
|
||||
*pucFrameCur++ = ( UCHAR ) ( usRegReadCount * 2 );
|
||||
*usLen += 1;
|
||||
|
||||
/* Make the read callback. */
|
||||
eRegStatus =
|
||||
eMBRegHoldingCB( pucFrameCur, usRegReadAddress, usRegReadCount, MB_REG_READ );
|
||||
if( eRegStatus == MB_ENOERR )
|
||||
{
|
||||
*usLen += 2 * usRegReadCount;
|
||||
}
|
||||
}
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,455 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfuncholding_m.c,v 1.60 2013/09/02 14:13:40 Armink Add Master Functions Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mb_m.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbconfig.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_REQ_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_REQ_READ_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_READ_REGCNT_MAX ( 0x007D )
|
||||
#define MB_PDU_FUNC_READ_BYTECNT_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
|
||||
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
|
||||
|
||||
#define MB_PDU_REQ_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
|
||||
#define MB_PDU_REQ_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_REQ_WRITE_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 0)
|
||||
#define MB_PDU_FUNC_WRITE_VALUE_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_WRITE_SIZE ( 4 )
|
||||
|
||||
#define MB_PDU_REQ_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_REQ_WRITE_MUL_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF ( MB_PDU_DATA_OFF + 4 )
|
||||
#define MB_PDU_REQ_WRITE_MUL_VALUES_OFF ( MB_PDU_DATA_OFF + 5 )
|
||||
#define MB_PDU_REQ_WRITE_MUL_SIZE_MIN ( 5 )
|
||||
#define MB_PDU_REQ_WRITE_MUL_REGCNT_MAX ( 0x0078 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_WRITE_MUL_SIZE ( 4 )
|
||||
|
||||
#define MB_PDU_REQ_READWRITE_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_REQ_READWRITE_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF ( MB_PDU_DATA_OFF + 4 )
|
||||
#define MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF ( MB_PDU_DATA_OFF + 6 )
|
||||
#define MB_PDU_REQ_READWRITE_WRITE_BYTECNT_OFF ( MB_PDU_DATA_OFF + 8 )
|
||||
#define MB_PDU_REQ_READWRITE_WRITE_VALUES_OFF ( MB_PDU_DATA_OFF + 9 )
|
||||
#define MB_PDU_REQ_READWRITE_SIZE_MIN ( 9 )
|
||||
#define MB_PDU_FUNC_READWRITE_READ_BYTECNT_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_FUNC_READWRITE_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
|
||||
#define MB_PDU_FUNC_READWRITE_SIZE_MIN ( 1 )
|
||||
|
||||
/* ----------------------- Static functions ---------------------------------*/
|
||||
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
|
||||
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
|
||||
|
||||
/**
|
||||
* This function will request write holding register.
|
||||
*
|
||||
* @param ucSndAddr salve address
|
||||
* @param usRegAddr register start address
|
||||
* @param usRegData register data to be written
|
||||
* @param lTimeOut timeout (-1 will waiting forever)
|
||||
*
|
||||
* @return error code
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqWriteHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usRegData, LONG lTimeOut )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
|
||||
|
||||
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
|
||||
else
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
vMBMasterSetDestAddress(ucSndAddr);
|
||||
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_REGISTER;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF] = usRegAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_ADDR_OFF + 1] = usRegAddr;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF] = usRegData >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_VALUE_OFF + 1] = usRegData ;
|
||||
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_SIZE );
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
|
||||
eErrStatus = eMBMasterWaitRequestFinish( );
|
||||
}
|
||||
return eErrStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen == ( MB_PDU_SIZE_MIN + MB_PDU_FUNC_WRITE_SIZE ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_WRITE_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
/* Make callback to update the value. */
|
||||
eRegStatus = eMBMasterRegHoldingCB( &pucFrame[MB_PDU_FUNC_WRITE_VALUE_OFF],
|
||||
usRegAddress, 1, MB_REG_WRITE );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid request because the length is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
|
||||
|
||||
/**
|
||||
* This function will request write multiple holding register.
|
||||
*
|
||||
* @param ucSndAddr salve address
|
||||
* @param usRegAddr register start address
|
||||
* @param usNRegs register total number
|
||||
* @param pusDataBuffer data to be written
|
||||
* @param lTimeOut timeout (-1 will waiting forever)
|
||||
*
|
||||
* @return error code
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqWriteMultipleHoldingRegister( UCHAR ucSndAddr,
|
||||
USHORT usRegAddr, USHORT usNRegs, USHORT * pusDataBuffer, LONG lTimeOut )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
USHORT usRegIndex = 0;
|
||||
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
|
||||
|
||||
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
|
||||
else
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
vMBMasterSetDestAddress(ucSndAddr);
|
||||
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_WRITE_MULTIPLE_REGISTERS;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF] = usRegAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF + 1] = usRegAddr;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF] = usNRegs >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF + 1] = usNRegs ;
|
||||
ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF] = usNRegs * 2;
|
||||
ucMBFrame += MB_PDU_REQ_WRITE_MUL_VALUES_OFF;
|
||||
while( usNRegs > usRegIndex)
|
||||
{
|
||||
*ucMBFrame++ = pusDataBuffer[usRegIndex] >> 8;
|
||||
*ucMBFrame++ = pusDataBuffer[usRegIndex++] ;
|
||||
}
|
||||
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_WRITE_MUL_SIZE_MIN + 2*usNRegs );
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
|
||||
eErrStatus = eMBMasterWaitRequestFinish( );
|
||||
}
|
||||
return eErrStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
USHORT usRegAddress;
|
||||
USHORT usRegCount;
|
||||
UCHAR ucRegByteCount;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
/* If this request is broadcast, the *usLen is not need check. */
|
||||
if( ( *usLen == MB_PDU_SIZE_MIN + MB_PDU_FUNC_WRITE_MUL_SIZE ) || xMBMasterRequestIsBroadcast() )
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usRegCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF] << 8 );
|
||||
usRegCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_WRITE_MUL_REGCNT_OFF + 1] );
|
||||
|
||||
ucRegByteCount = ucMBFrame[MB_PDU_REQ_WRITE_MUL_BYTECNT_OFF];
|
||||
|
||||
if( ucRegByteCount == 2 * usRegCount )
|
||||
{
|
||||
/* Make callback to update the register values. */
|
||||
eRegStatus =
|
||||
eMBMasterRegHoldingCB( &ucMBFrame[MB_PDU_REQ_WRITE_MUL_VALUES_OFF],
|
||||
usRegAddress, usRegCount, MB_REG_WRITE );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid request because the length is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_READ_HOLDING_ENABLED > 0
|
||||
|
||||
/**
|
||||
* This function will request read holding register.
|
||||
*
|
||||
* @param ucSndAddr salve address
|
||||
* @param usRegAddr register start address
|
||||
* @param usNRegs register total number
|
||||
* @param lTimeOut timeout (-1 will waiting forever)
|
||||
*
|
||||
* @return error code
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
|
||||
|
||||
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
|
||||
else
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
vMBMasterSetDestAddress(ucSndAddr);
|
||||
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_HOLDING_REGISTER;
|
||||
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usRegAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usRegAddr;
|
||||
ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF] = usNRegs >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] = usNRegs;
|
||||
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
|
||||
eErrStatus = eMBMasterWaitRequestFinish( );
|
||||
}
|
||||
return eErrStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
USHORT usRegAddress;
|
||||
USHORT usRegCount;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
/* If this request is broadcast, and it's read mode. This request don't need execute. */
|
||||
if ( xMBMasterRequestIsBroadcast() )
|
||||
{
|
||||
eStatus = MB_EX_NONE;
|
||||
}
|
||||
else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usRegCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF] << 8 );
|
||||
usRegCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] );
|
||||
|
||||
/* Check if the number of registers to read is valid. If not
|
||||
* return Modbus illegal data value exception.
|
||||
*/
|
||||
if( ( usRegCount >= 1 ) && ( 2 * usRegCount == pucFrame[MB_PDU_FUNC_READ_BYTECNT_OFF] ) )
|
||||
{
|
||||
/* Make callback to fill the buffer. */
|
||||
eRegStatus = eMBMasterRegHoldingCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usRegCount, MB_REG_READ );
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid request because the length is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
|
||||
|
||||
/**
|
||||
* This function will request read and write holding register.
|
||||
*
|
||||
* @param ucSndAddr salve address
|
||||
* @param usReadRegAddr read register start address
|
||||
* @param usNReadRegs read register total number
|
||||
* @param pusDataBuffer data to be written
|
||||
* @param usWriteRegAddr write register start address
|
||||
* @param usNWriteRegs write register total number
|
||||
* @param lTimeOut timeout (-1 will waiting forever)
|
||||
*
|
||||
* @return error code
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadWriteMultipleHoldingRegister( UCHAR ucSndAddr,
|
||||
USHORT usReadRegAddr, USHORT usNReadRegs, USHORT * pusDataBuffer,
|
||||
USHORT usWriteRegAddr, USHORT usNWriteRegs, LONG lTimeOut )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
USHORT usRegIndex = 0;
|
||||
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
|
||||
|
||||
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
|
||||
else
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
vMBMasterSetDestAddress(ucSndAddr);
|
||||
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READWRITE_MULTIPLE_REGISTERS;
|
||||
ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF] = usReadRegAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF + 1] = usReadRegAddr;
|
||||
ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF] = usNReadRegs >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF + 1] = usNReadRegs ;
|
||||
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF] = usWriteRegAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF + 1] = usWriteRegAddr;
|
||||
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF] = usNWriteRegs >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF + 1] = usNWriteRegs ;
|
||||
ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_BYTECNT_OFF] = usNWriteRegs * 2;
|
||||
ucMBFrame += MB_PDU_REQ_READWRITE_WRITE_VALUES_OFF;
|
||||
while( usNWriteRegs > usRegIndex)
|
||||
{
|
||||
*ucMBFrame++ = pusDataBuffer[usRegIndex] >> 8;
|
||||
*ucMBFrame++ = pusDataBuffer[usRegIndex++] ;
|
||||
}
|
||||
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READWRITE_SIZE_MIN + 2*usNWriteRegs );
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
|
||||
eErrStatus = eMBMasterWaitRequestFinish( );
|
||||
}
|
||||
return eErrStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegReadAddress;
|
||||
USHORT usRegReadCount;
|
||||
USHORT usRegWriteAddress;
|
||||
USHORT usRegWriteCount;
|
||||
UCHAR *ucMBFrame;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
/* If this request is broadcast, and it's read mode. This request don't need execute. */
|
||||
if ( xMBMasterRequestIsBroadcast() )
|
||||
{
|
||||
eStatus = MB_EX_NONE;
|
||||
}
|
||||
else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READWRITE_SIZE_MIN )
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
usRegReadAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF] << 8U );
|
||||
usRegReadAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_ADDR_OFF + 1] );
|
||||
usRegReadAddress++;
|
||||
|
||||
usRegReadCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF] << 8U );
|
||||
usRegReadCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_READ_REGCNT_OFF + 1] );
|
||||
|
||||
usRegWriteAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF] << 8U );
|
||||
usRegWriteAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_ADDR_OFF + 1] );
|
||||
usRegWriteAddress++;
|
||||
|
||||
usRegWriteCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF] << 8U );
|
||||
usRegWriteCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_REGCNT_OFF + 1] );
|
||||
|
||||
if( ( 2 * usRegReadCount ) == pucFrame[MB_PDU_FUNC_READWRITE_READ_BYTECNT_OFF] )
|
||||
{
|
||||
/* Make callback to update the register values. */
|
||||
eRegStatus = eMBMasterRegHoldingCB( &ucMBFrame[MB_PDU_REQ_READWRITE_WRITE_VALUES_OFF],
|
||||
usRegWriteAddress, usRegWriteCount, MB_REG_WRITE );
|
||||
|
||||
if( eRegStatus == MB_ENOERR )
|
||||
{
|
||||
/* Make the read callback. */
|
||||
eRegStatus = eMBMasterRegHoldingCB(&pucFrame[MB_PDU_FUNC_READWRITE_READ_VALUES_OFF],
|
||||
usRegReadAddress, usRegReadCount, MB_REG_READ);
|
||||
}
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
#endif
|
||||
|
||||
@@ -0,0 +1,122 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfuncinput.c,v 1.10 2007/09/12 10:15:56 wolti Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbconfig.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_PDU_FUNC_READ_ADDR_OFF ( MB_PDU_DATA_OFF )
|
||||
#define MB_PDU_FUNC_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_FUNC_READ_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_READ_REGCNT_MAX ( 0x007D )
|
||||
|
||||
#define MB_PDU_FUNC_READ_RSP_BYTECNT_OFF ( MB_PDU_DATA_OFF )
|
||||
|
||||
/* ----------------------- Static functions ---------------------------------*/
|
||||
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
#if MB_FUNC_READ_INPUT_ENABLED > 0
|
||||
|
||||
eMBException
|
||||
eMBFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
USHORT usRegAddress;
|
||||
USHORT usRegCount;
|
||||
UCHAR *pucFrameCur;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
if( *usLen == ( MB_PDU_FUNC_READ_SIZE + MB_PDU_SIZE_MIN ) )
|
||||
{
|
||||
usRegAddress = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usRegCount = ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF] << 8 );
|
||||
usRegCount |= ( USHORT )( pucFrame[MB_PDU_FUNC_READ_REGCNT_OFF + 1] );
|
||||
|
||||
/* Check if the number of registers to read is valid. If not
|
||||
* return Modbus illegal data value exception.
|
||||
*/
|
||||
if( ( usRegCount >= 1 )
|
||||
&& ( usRegCount < MB_PDU_FUNC_READ_REGCNT_MAX ) )
|
||||
{
|
||||
/* Set the current PDU data pointer to the beginning. */
|
||||
pucFrameCur = &pucFrame[MB_PDU_FUNC_OFF];
|
||||
*usLen = MB_PDU_FUNC_OFF;
|
||||
|
||||
/* First byte contains the function code. */
|
||||
*pucFrameCur++ = MB_FUNC_READ_INPUT_REGISTER;
|
||||
*usLen += 1;
|
||||
|
||||
/* Second byte in the response contain the number of bytes. */
|
||||
*pucFrameCur++ = ( UCHAR )( usRegCount * 2 );
|
||||
*usLen += 1;
|
||||
|
||||
eRegStatus =
|
||||
eMBRegInputCB( pucFrameCur, usRegAddress, usRegCount );
|
||||
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
else
|
||||
{
|
||||
*usLen += usRegCount * 2;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid read input register request because the length
|
||||
* is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,148 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfuncinput_m.c,v 1.60 2013/10/12 14:23:40 Armink Add Master Functions Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mb_m.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbconfig.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_PDU_REQ_READ_ADDR_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_REQ_READ_REGCNT_OFF ( MB_PDU_DATA_OFF + 2 )
|
||||
#define MB_PDU_REQ_READ_SIZE ( 4 )
|
||||
#define MB_PDU_FUNC_READ_BYTECNT_OFF ( MB_PDU_DATA_OFF + 0 )
|
||||
#define MB_PDU_FUNC_READ_VALUES_OFF ( MB_PDU_DATA_OFF + 1 )
|
||||
#define MB_PDU_FUNC_READ_SIZE_MIN ( 1 )
|
||||
|
||||
#define MB_PDU_FUNC_READ_RSP_BYTECNT_OFF ( MB_PDU_DATA_OFF )
|
||||
|
||||
/* ----------------------- Static functions ---------------------------------*/
|
||||
eMBException prveMBError2Exception( eMBErrorCode eErrorCode );
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
|
||||
#if MB_FUNC_READ_INPUT_ENABLED > 0
|
||||
|
||||
/**
|
||||
* This function will request read input register.
|
||||
*
|
||||
* @param ucSndAddr salve address
|
||||
* @param usRegAddr register start address
|
||||
* @param usNRegs register total number
|
||||
* @param lTimeOut timeout (-1 will waiting forever)
|
||||
*
|
||||
* @return error code
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadInputRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
eMBMasterReqErrCode eErrStatus = MB_MRE_NO_ERR;
|
||||
|
||||
if ( ucSndAddr > MB_MASTER_TOTAL_SLAVE_NUM ) eErrStatus = MB_MRE_ILL_ARG;
|
||||
else if ( xMBMasterRunResTake( lTimeOut ) == FALSE ) eErrStatus = MB_MRE_MASTER_BUSY;
|
||||
else
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
vMBMasterSetDestAddress(ucSndAddr);
|
||||
ucMBFrame[MB_PDU_FUNC_OFF] = MB_FUNC_READ_INPUT_REGISTER;
|
||||
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] = usRegAddr >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] = usRegAddr;
|
||||
ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF] = usNRegs >> 8;
|
||||
ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] = usNRegs;
|
||||
vMBMasterSetPDUSndLength( MB_PDU_SIZE_MIN + MB_PDU_REQ_READ_SIZE );
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_FRAME_SENT );
|
||||
eErrStatus = eMBMasterWaitRequestFinish( );
|
||||
}
|
||||
return eErrStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
UCHAR *ucMBFrame;
|
||||
USHORT usRegAddress;
|
||||
USHORT usRegCount;
|
||||
|
||||
eMBException eStatus = MB_EX_NONE;
|
||||
eMBErrorCode eRegStatus;
|
||||
|
||||
/* If this request is broadcast, and it's read mode. This request don't need execute. */
|
||||
if ( xMBMasterRequestIsBroadcast() )
|
||||
{
|
||||
eStatus = MB_EX_NONE;
|
||||
}
|
||||
else if( *usLen >= MB_PDU_SIZE_MIN + MB_PDU_FUNC_READ_SIZE_MIN )
|
||||
{
|
||||
vMBMasterGetPDUSndBuf(&ucMBFrame);
|
||||
usRegAddress = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF] << 8 );
|
||||
usRegAddress |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_ADDR_OFF + 1] );
|
||||
usRegAddress++;
|
||||
|
||||
usRegCount = ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF] << 8 );
|
||||
usRegCount |= ( USHORT )( ucMBFrame[MB_PDU_REQ_READ_REGCNT_OFF + 1] );
|
||||
|
||||
/* Check if the number of registers to read is valid. If not
|
||||
* return Modbus illegal data value exception.
|
||||
*/
|
||||
if( ( usRegCount >= 1 ) && ( 2 * usRegCount == pucFrame[MB_PDU_FUNC_READ_BYTECNT_OFF] ) )
|
||||
{
|
||||
/* Make callback to fill the buffer. */
|
||||
eRegStatus = eMBMasterRegInputCB( &pucFrame[MB_PDU_FUNC_READ_VALUES_OFF], usRegAddress, usRegCount );
|
||||
/* If an error occured convert it into a Modbus exception. */
|
||||
if( eRegStatus != MB_ENOERR )
|
||||
{
|
||||
eStatus = prveMBError2Exception( eRegStatus );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Can't be a valid request because the length is incorrect. */
|
||||
eStatus = MB_EX_ILLEGAL_DATA_VALUE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,88 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfuncother.c,v 1.8 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbconfig.h"
|
||||
|
||||
#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
|
||||
|
||||
/* ----------------------- Static variables ---------------------------------*/
|
||||
static UCHAR ucMBSlaveID[MB_FUNC_OTHER_REP_SLAVEID_BUF];
|
||||
static USHORT usMBSlaveIDLen;
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
|
||||
eMBErrorCode
|
||||
eMBSetSlaveID( UCHAR ucSlaveID, BOOL xIsRunning,
|
||||
UCHAR const *pucAdditional, USHORT usAdditionalLen )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
/* the first byte and second byte in the buffer is reserved for
|
||||
* the parameter ucSlaveID and the running flag. The rest of
|
||||
* the buffer is available for additional data. */
|
||||
if( usAdditionalLen + 2 < MB_FUNC_OTHER_REP_SLAVEID_BUF )
|
||||
{
|
||||
usMBSlaveIDLen = 0;
|
||||
ucMBSlaveID[usMBSlaveIDLen++] = ucSlaveID;
|
||||
ucMBSlaveID[usMBSlaveIDLen++] = ( UCHAR )( xIsRunning ? 0xFF : 0x00 );
|
||||
if( usAdditionalLen > 0 )
|
||||
{
|
||||
memcpy( &ucMBSlaveID[usMBSlaveIDLen], pucAdditional,
|
||||
( size_t )usAdditionalLen );
|
||||
usMBSlaveIDLen += usAdditionalLen;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_ENORES;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBException
|
||||
eMBFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen )
|
||||
{
|
||||
memcpy( &pucFrame[MB_PDU_DATA_OFF], &ucMBSlaveID[0], ( size_t )usMBSlaveIDLen );
|
||||
*usLen = ( USHORT )( MB_PDU_DATA_OFF + usMBSlaveIDLen );
|
||||
return MB_EX_NONE;
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,141 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbutils.c,v 1.6 2007/02/18 23:49:07 wolti Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mbproto.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define BITS_UCHAR 8U
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
void
|
||||
xMBUtilSetBits( UCHAR * ucByteBuf, USHORT usBitOffset, UCHAR ucNBits,
|
||||
UCHAR ucValue )
|
||||
{
|
||||
USHORT usWordBuf;
|
||||
USHORT usMask;
|
||||
USHORT usByteOffset;
|
||||
USHORT usNPreBits;
|
||||
USHORT usValue = ucValue;
|
||||
|
||||
assert_param( ucNBits <= 8 );
|
||||
assert_param( ( size_t )BITS_UCHAR == sizeof( UCHAR ) * 8 );
|
||||
|
||||
/* Calculate byte offset for first byte containing the bit values starting
|
||||
* at usBitOffset. */
|
||||
usByteOffset = ( USHORT )( ( usBitOffset ) / BITS_UCHAR );
|
||||
|
||||
/* How many bits precede our bits to set. */
|
||||
usNPreBits = ( USHORT )( usBitOffset - usByteOffset * BITS_UCHAR );
|
||||
|
||||
/* Move bit field into position over bits to set */
|
||||
usValue <<= usNPreBits;
|
||||
|
||||
/* Prepare a mask for setting the new bits. */
|
||||
usMask = ( USHORT )( ( 1 << ( USHORT ) ucNBits ) - 1 );
|
||||
usMask <<= usBitOffset - usByteOffset * BITS_UCHAR;
|
||||
|
||||
/* copy bits into temporary storage. */
|
||||
usWordBuf = ucByteBuf[usByteOffset];
|
||||
usWordBuf |= ucByteBuf[usByteOffset + 1] << BITS_UCHAR;
|
||||
|
||||
/* Zero out bit field bits and then or value bits into them. */
|
||||
usWordBuf = ( USHORT )( ( usWordBuf & ( ~usMask ) ) | usValue );
|
||||
|
||||
/* move bits back into storage */
|
||||
ucByteBuf[usByteOffset] = ( UCHAR )( usWordBuf & 0xFF );
|
||||
ucByteBuf[usByteOffset + 1] = ( UCHAR )( usWordBuf >> BITS_UCHAR );
|
||||
}
|
||||
|
||||
UCHAR
|
||||
xMBUtilGetBits( UCHAR * ucByteBuf, USHORT usBitOffset, UCHAR ucNBits )
|
||||
{
|
||||
USHORT usWordBuf;
|
||||
USHORT usMask;
|
||||
USHORT usByteOffset;
|
||||
USHORT usNPreBits;
|
||||
|
||||
/* Calculate byte offset for first byte containing the bit values starting
|
||||
* at usBitOffset. */
|
||||
usByteOffset = ( USHORT )( ( usBitOffset ) / BITS_UCHAR );
|
||||
|
||||
/* How many bits precede our bits to set. */
|
||||
usNPreBits = ( USHORT )( usBitOffset - usByteOffset * BITS_UCHAR );
|
||||
|
||||
/* Prepare a mask for setting the new bits. */
|
||||
usMask = ( USHORT )( ( 1 << ( USHORT ) ucNBits ) - 1 );
|
||||
|
||||
/* copy bits into temporary storage. */
|
||||
usWordBuf = ucByteBuf[usByteOffset];
|
||||
usWordBuf |= ucByteBuf[usByteOffset + 1] << BITS_UCHAR;
|
||||
|
||||
/* throw away unneeded bits. */
|
||||
usWordBuf >>= usNPreBits;
|
||||
|
||||
/* mask away bits above the requested bitfield. */
|
||||
usWordBuf &= usMask;
|
||||
|
||||
return ( UCHAR ) usWordBuf;
|
||||
}
|
||||
|
||||
eMBException
|
||||
prveMBError2Exception( eMBErrorCode eErrorCode )
|
||||
{
|
||||
eMBException eStatus;
|
||||
|
||||
switch ( eErrorCode )
|
||||
{
|
||||
case MB_ENOERR:
|
||||
eStatus = MB_EX_NONE;
|
||||
break;
|
||||
|
||||
case MB_ENOREG:
|
||||
eStatus = MB_EX_ILLEGAL_DATA_ADDRESS;
|
||||
break;
|
||||
|
||||
case MB_ETIMEDOUT:
|
||||
eStatus = MB_EX_SLAVE_BUSY;
|
||||
break;
|
||||
|
||||
default:
|
||||
eStatus = MB_EX_SLAVE_DEVICE_FAILURE;
|
||||
break;
|
||||
}
|
||||
|
||||
return eStatus;
|
||||
}
|
||||
@@ -0,0 +1,417 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mb.h,v 1.17 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
#ifndef _MB_H
|
||||
#define _MB_H
|
||||
|
||||
#include "port.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
|
||||
#include "mbport.h"
|
||||
#include "mbproto.h"
|
||||
|
||||
/*! \defgroup modbus Modbus
|
||||
* \code #include "mb.h" \endcode
|
||||
*
|
||||
* This module defines the interface for the application. It contains
|
||||
* the basic functions and types required to use the Modbus protocol stack.
|
||||
* A typical application will want to call eMBInit() first. If the device
|
||||
* is ready to answer network requests it must then call eMBEnable() to activate
|
||||
* the protocol stack. In the main loop the function eMBPoll() must be called
|
||||
* periodically. The time interval between pooling depends on the configured
|
||||
* Modbus timeout. If an RTOS is available a separate task should be created
|
||||
* and the task should always call the function eMBPoll().
|
||||
*
|
||||
* \code
|
||||
* // Initialize protocol stack in RTU mode for a slave with address 10 = 0x0A
|
||||
* eMBInit( MB_RTU, 0x0A, 38400, MB_PAR_EVEN );
|
||||
* // Enable the Modbus Protocol Stack.
|
||||
* eMBEnable( );
|
||||
* for( ;; )
|
||||
* {
|
||||
* // Call the main polling loop of the Modbus protocol stack.
|
||||
* eMBPoll( );
|
||||
* ...
|
||||
* }
|
||||
* \endcode
|
||||
*/
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Use the default Modbus TCP port (502)
|
||||
*/
|
||||
#define MB_TCP_PORT_USE_DEFAULT 0
|
||||
|
||||
/* ----------------------- Type definitions ---------------------------------*/
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Modbus serial transmission modes (RTU/ASCII).
|
||||
*
|
||||
* Modbus serial supports two transmission modes. Either ASCII or RTU. RTU
|
||||
* is faster but has more hardware requirements and requires a network with
|
||||
* a low jitter. ASCII is slower and more reliable on slower links (E.g. modems)
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
MB_RTU, /*!< RTU transmission mode. */
|
||||
MB_ASCII, /*!< ASCII transmission mode. */
|
||||
MB_TCP /*!< TCP mode. */
|
||||
} eMBMode;
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief If register should be written or read.
|
||||
*
|
||||
* This value is passed to the callback functions which support either
|
||||
* reading or writing register values. Writing means that the application
|
||||
* registers should be updated and reading means that the modbus protocol
|
||||
* stack needs to know the current register values.
|
||||
*
|
||||
* \see eMBRegHoldingCB( ), eMBRegCoilsCB( ), eMBRegDiscreteCB( ) and
|
||||
* eMBRegInputCB( ).
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
MB_REG_READ, /*!< Read register values and pass to protocol stack. */
|
||||
MB_REG_WRITE /*!< Update register values. */
|
||||
} eMBRegisterMode;
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Errorcodes used by all function in the protocol stack.
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
MB_ENOERR, /*!< no error. */
|
||||
MB_ENOREG, /*!< illegal register address. */
|
||||
MB_EINVAL, /*!< illegal argument. */
|
||||
MB_EPORTERR, /*!< porting layer error. */
|
||||
MB_ENORES, /*!< insufficient resources. */
|
||||
MB_EIO, /*!< I/O error. */
|
||||
MB_EILLSTATE, /*!< protocol stack in illegal state. */
|
||||
MB_ETIMEDOUT /*!< timeout error occurred. */
|
||||
} eMBErrorCode;
|
||||
|
||||
|
||||
/* ----------------------- Function prototypes ------------------------------*/
|
||||
/*! \ingroup modbus
|
||||
* \brief Initialize the Modbus protocol stack.
|
||||
*
|
||||
* This functions initializes the ASCII or RTU module and calls the
|
||||
* init functions of the porting layer to prepare the hardware. Please
|
||||
* note that the receiver is still disabled and no Modbus frames are
|
||||
* processed until eMBEnable( ) has been called.
|
||||
*
|
||||
* \param eMode If ASCII or RTU mode should be used.
|
||||
* \param ucSlaveAddress The slave address. Only frames sent to this
|
||||
* address or to the broadcast address are processed.
|
||||
* \param ucPort The port to use. E.g. 1 for COM1 on windows. This value
|
||||
* is platform dependent and some ports simply choose to ignore it.
|
||||
* \param ulBaudRate The baudrate. E.g. 19200. Supported baudrates depend
|
||||
* on the porting layer.
|
||||
* \param eParity Parity used for serial transmission.
|
||||
*
|
||||
* \return If no error occurs the function returns eMBErrorCode::MB_ENOERR.
|
||||
* The protocol is then in the disabled state and ready for activation
|
||||
* by calling eMBEnable( ). Otherwise one of the following error codes
|
||||
* is returned:
|
||||
* - eMBErrorCode::MB_EINVAL If the slave address was not valid. Valid
|
||||
* slave addresses are in the range 1 - 247.
|
||||
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
|
||||
*/
|
||||
eMBErrorCode eMBInit( eMBMode eMode, UCHAR ucSlaveAddress,
|
||||
UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Initialize the Modbus protocol stack for Modbus TCP.
|
||||
*
|
||||
* This function initializes the Modbus TCP Module. Please note that
|
||||
* frame processing is still disabled until eMBEnable( ) is called.
|
||||
*
|
||||
* \param usTCPPort The TCP port to listen on.
|
||||
* \return If the protocol stack has been initialized correctly the function
|
||||
* returns eMBErrorCode::MB_ENOERR. Otherwise one of the following error
|
||||
* codes is returned:
|
||||
* - eMBErrorCode::MB_EINVAL If the slave address was not valid. Valid
|
||||
* slave addresses are in the range 1 - 247.
|
||||
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
|
||||
*/
|
||||
eMBErrorCode eMBTCPInit( USHORT usTCPPort );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Release resources used by the protocol stack.
|
||||
*
|
||||
* This function disables the Modbus protocol stack and release all
|
||||
* hardware resources. It must only be called when the protocol stack
|
||||
* is disabled.
|
||||
*
|
||||
* \note Note all ports implement this function. A port which wants to
|
||||
* get an callback must define the macro MB_PORT_HAS_CLOSE to 1.
|
||||
*
|
||||
* \return If the resources where released it return eMBErrorCode::MB_ENOERR.
|
||||
* If the protocol stack is not in the disabled state it returns
|
||||
* eMBErrorCode::MB_EILLSTATE.
|
||||
*/
|
||||
eMBErrorCode eMBClose( void );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Enable the Modbus protocol stack.
|
||||
*
|
||||
* This function enables processing of Modbus frames. Enabling the protocol
|
||||
* stack is only possible if it is in the disabled state.
|
||||
*
|
||||
* \return If the protocol stack is now in the state enabled it returns
|
||||
* eMBErrorCode::MB_ENOERR. If it was not in the disabled state it
|
||||
* return eMBErrorCode::MB_EILLSTATE.
|
||||
*/
|
||||
eMBErrorCode eMBEnable( void );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Disable the Modbus protocol stack.
|
||||
*
|
||||
* This function disables processing of Modbus frames.
|
||||
*
|
||||
* \return If the protocol stack has been disabled it returns
|
||||
* eMBErrorCode::MB_ENOERR. If it was not in the enabled state it returns
|
||||
* eMBErrorCode::MB_EILLSTATE.
|
||||
*/
|
||||
eMBErrorCode eMBDisable( void );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief The main pooling loop of the Modbus protocol stack.
|
||||
*
|
||||
* This function must be called periodically. The timer interval required
|
||||
* is given by the application dependent Modbus slave timeout. Internally the
|
||||
* function calls xMBPortEventGet() and waits for an event from the receiver or
|
||||
* transmitter state machines.
|
||||
*
|
||||
* \return If the protocol stack is not in the enabled state the function
|
||||
* returns eMBErrorCode::MB_EILLSTATE. Otherwise it returns
|
||||
* eMBErrorCode::MB_ENOERR.
|
||||
*/
|
||||
eMBErrorCode eMBPoll( void );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Configure the slave id of the device.
|
||||
*
|
||||
* This function should be called when the Modbus function <em>Report Slave ID</em>
|
||||
* is enabled ( By defining MB_FUNC_OTHER_REP_SLAVEID_ENABLED in mbconfig.h ).
|
||||
*
|
||||
* \param ucSlaveID Values is returned in the <em>Slave ID</em> byte of the
|
||||
* <em>Report Slave ID</em> response.
|
||||
* \param xIsRunning If TRUE the <em>Run Indicator Status</em> byte is set to 0xFF.
|
||||
* otherwise the <em>Run Indicator Status</em> is 0x00.
|
||||
* \param pucAdditional Values which should be returned in the <em>Additional</em>
|
||||
* bytes of the <em> Report Slave ID</em> response.
|
||||
* \param usAdditionalLen Length of the buffer <code>pucAdditonal</code>.
|
||||
*
|
||||
* \return If the static buffer defined by MB_FUNC_OTHER_REP_SLAVEID_BUF in
|
||||
* mbconfig.h is to small it returns eMBErrorCode::MB_ENORES. Otherwise
|
||||
* it returns eMBErrorCode::MB_ENOERR.
|
||||
*/
|
||||
eMBErrorCode eMBSetSlaveID( UCHAR ucSlaveID, BOOL xIsRunning,
|
||||
UCHAR const *pucAdditional,
|
||||
USHORT usAdditionalLen );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Registers a callback handler for a given function code.
|
||||
*
|
||||
* This function registers a new callback handler for a given function code.
|
||||
* The callback handler supplied is responsible for interpreting the Modbus PDU and
|
||||
* the creation of an appropriate response. In case of an error it should return
|
||||
* one of the possible Modbus exceptions which results in a Modbus exception frame
|
||||
* sent by the protocol stack.
|
||||
*
|
||||
* \param ucFunctionCode The Modbus function code for which this handler should
|
||||
* be registers. Valid function codes are in the range 1 to 127.
|
||||
* \param pxHandler The function handler which should be called in case
|
||||
* such a frame is received. If \c NULL a previously registered function handler
|
||||
* for this function code is removed.
|
||||
*
|
||||
* \return eMBErrorCode::MB_ENOERR if the handler has been installed. If no
|
||||
* more resources are available it returns eMBErrorCode::MB_ENORES. In this
|
||||
* case the values in mbconfig.h should be adjusted. If the argument was not
|
||||
* valid it returns eMBErrorCode::MB_EINVAL.
|
||||
*/
|
||||
eMBErrorCode eMBRegisterCB( UCHAR ucFunctionCode,
|
||||
pxMBFunctionHandler pxHandler );
|
||||
|
||||
/* ----------------------- Callback -----------------------------------------*/
|
||||
|
||||
/*! \defgroup modbus_registers Modbus Registers
|
||||
* \code #include "mb.h" \endcode
|
||||
* The protocol stack does not internally allocate any memory for the
|
||||
* registers. This makes the protocol stack very small and also usable on
|
||||
* low end targets. In addition the values don't have to be in the memory
|
||||
* and could for example be stored in a flash.<br>
|
||||
* Whenever the protocol stack requires a value it calls one of the callback
|
||||
* function with the register address and the number of registers to read
|
||||
* as an argument. The application should then read the actual register values
|
||||
* (for example the ADC voltage) and should store the result in the supplied
|
||||
* buffer.<br>
|
||||
* If the protocol stack wants to update a register value because a write
|
||||
* register function was received a buffer with the new register values is
|
||||
* passed to the callback function. The function should then use these values
|
||||
* to update the application register values.
|
||||
*/
|
||||
|
||||
/*! \ingroup modbus_registers
|
||||
* \brief Callback function used if the value of a <em>Input Register</em>
|
||||
* is required by the protocol stack. The starting register address is given
|
||||
* by \c usAddress and the last register is given by <tt>usAddress +
|
||||
* usNRegs - 1</tt>.
|
||||
*
|
||||
* \param pucRegBuffer A buffer where the callback function should write
|
||||
* the current value of the modbus registers to.
|
||||
* \param usAddress The starting address of the register. Input registers
|
||||
* are in the range 1 - 65535.
|
||||
* \param usNRegs Number of registers the callback function must supply.
|
||||
*
|
||||
* \return The function must return one of the following error codes:
|
||||
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
|
||||
* Modbus response is sent.
|
||||
* - eMBErrorCode::MB_ENOREG If the application can not supply values
|
||||
* for registers within this range. In this case a
|
||||
* <b>ILLEGAL DATA ADDRESS</b> exception frame is sent as a response.
|
||||
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
|
||||
* currently not available and the application dependent response
|
||||
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
|
||||
* exception is sent as a response.
|
||||
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
|
||||
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
|
||||
*/
|
||||
eMBErrorCode eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress,
|
||||
USHORT usNRegs );
|
||||
|
||||
/*! \ingroup modbus_registers
|
||||
* \brief Callback function used if a <em>Holding Register</em> value is
|
||||
* read or written by the protocol stack. The starting register address
|
||||
* is given by \c usAddress and the last register is given by
|
||||
* <tt>usAddress + usNRegs - 1</tt>.
|
||||
*
|
||||
* \param pucRegBuffer If the application registers values should be updated the
|
||||
* buffer points to the new registers values. If the protocol stack needs
|
||||
* to now the current values the callback function should write them into
|
||||
* this buffer.
|
||||
* \param usAddress The starting address of the register.
|
||||
* \param usNRegs Number of registers to read or write.
|
||||
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application register
|
||||
* values should be updated from the values in the buffer. For example
|
||||
* this would be the case when the Modbus master has issued an
|
||||
* <b>WRITE SINGLE REGISTER</b> command.
|
||||
* If the value eMBRegisterMode::MB_REG_READ the application should copy
|
||||
* the current values into the buffer \c pucRegBuffer.
|
||||
*
|
||||
* \return The function must return one of the following error codes:
|
||||
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
|
||||
* Modbus response is sent.
|
||||
* - eMBErrorCode::MB_ENOREG If the application can not supply values
|
||||
* for registers within this range. In this case a
|
||||
* <b>ILLEGAL DATA ADDRESS</b> exception frame is sent as a response.
|
||||
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
|
||||
* currently not available and the application dependent response
|
||||
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
|
||||
* exception is sent as a response.
|
||||
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
|
||||
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
|
||||
*/
|
||||
eMBErrorCode eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress,
|
||||
USHORT usNRegs, eMBRegisterMode eMode );
|
||||
|
||||
/*! \ingroup modbus_registers
|
||||
* \brief Callback function used if a <em>Coil Register</em> value is
|
||||
* read or written by the protocol stack. If you are going to use
|
||||
* this function you might use the functions xMBUtilSetBits( ) and
|
||||
* xMBUtilGetBits( ) for working with bitfields.
|
||||
*
|
||||
* \param pucRegBuffer The bits are packed in bytes where the first coil
|
||||
* starting at address \c usAddress is stored in the LSB of the
|
||||
* first byte in the buffer <code>pucRegBuffer</code>.
|
||||
* If the buffer should be written by the callback function unused
|
||||
* coil values (I.e. if not a multiple of eight coils is used) should be set
|
||||
* to zero.
|
||||
* \param usAddress The first coil number.
|
||||
* \param usNCoils Number of coil values requested.
|
||||
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application values should
|
||||
* be updated from the values supplied in the buffer \c pucRegBuffer.
|
||||
* If eMBRegisterMode::MB_REG_READ the application should store the current
|
||||
* values in the buffer \c pucRegBuffer.
|
||||
*
|
||||
* \return The function must return one of the following error codes:
|
||||
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
|
||||
* Modbus response is sent.
|
||||
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
|
||||
* within the requested address range. In this case a
|
||||
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
|
||||
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
|
||||
* currently not available and the application dependent response
|
||||
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
|
||||
* exception is sent as a response.
|
||||
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
|
||||
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
|
||||
*/
|
||||
eMBErrorCode eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress,
|
||||
USHORT usNCoils, eMBRegisterMode eMode );
|
||||
|
||||
/*! \ingroup modbus_registers
|
||||
* \brief Callback function used if a <em>Input Discrete Register</em> value is
|
||||
* read by the protocol stack.
|
||||
*
|
||||
* If you are going to use his function you might use the functions
|
||||
* xMBUtilSetBits( ) and xMBUtilGetBits( ) for working with bitfields.
|
||||
*
|
||||
* \param pucRegBuffer The buffer should be updated with the current
|
||||
* coil values. The first discrete input starting at \c usAddress must be
|
||||
* stored at the LSB of the first byte in the buffer. If the requested number
|
||||
* is not a multiple of eight the remaining bits should be set to zero.
|
||||
* \param usAddress The starting address of the first discrete input.
|
||||
* \param usNDiscrete Number of discrete input values.
|
||||
* \return The function must return one of the following error codes:
|
||||
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
|
||||
* Modbus response is sent.
|
||||
* - eMBErrorCode::MB_ENOREG If no such discrete inputs exists.
|
||||
* In this case a <b>ILLEGAL DATA ADDRESS</b> exception frame is sent
|
||||
* as a response.
|
||||
* - eMBErrorCode::MB_ETIMEDOUT If the requested register block is
|
||||
* currently not available and the application dependent response
|
||||
* timeout would be violated. In this case a <b>SLAVE DEVICE BUSY</b>
|
||||
* exception is sent as a response.
|
||||
* - eMBErrorCode::MB_EIO If an unrecoverable error occurred. In this case
|
||||
* a <b>SLAVE DEVICE FAILURE</b> exception is sent as a response.
|
||||
*/
|
||||
eMBErrorCode eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress,
|
||||
USHORT usNDiscrete );
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,414 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mb_m.h,v 1.60 2013/09/03 10:20:05 Armink Add Master Functions $
|
||||
*/
|
||||
|
||||
#ifndef _MB_M_H
|
||||
#define _MB_M_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
|
||||
/*! \defgroup modbus Modbus
|
||||
* \code #include "mb_m.h" \endcode
|
||||
*
|
||||
* This module defines the interface for the application. It contains
|
||||
* the basic functions and types required to use the Modbus Master protocol stack.
|
||||
* A typical application will want to call eMBMasterInit() first. If the device
|
||||
* is ready to answer network requests it must then call eMBEnable() to activate
|
||||
* the protocol stack. In the main loop the function eMBMasterPoll() must be called
|
||||
* periodically. The time interval between pooling depends on the configured
|
||||
* Modbus timeout. If an RTOS is available a separate task should be created
|
||||
* and the task should always call the function eMBMasterPoll().
|
||||
*
|
||||
* \code
|
||||
* // Initialize protocol stack in RTU mode for a Master
|
||||
* eMBMasterInit( MB_RTU, 38400, MB_PAR_EVEN );
|
||||
* // Enable the Modbus Protocol Stack.
|
||||
* eMBMasterEnable( );
|
||||
* for( ;; )
|
||||
* {
|
||||
* // Call the main polling loop of the Modbus Master protocol stack.
|
||||
* eMBMasterPoll( );
|
||||
* ...
|
||||
* }
|
||||
* \endcode
|
||||
*/
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Use the default Modbus Master TCP port (502)
|
||||
*/
|
||||
#define MB_MASTER_TCP_PORT_USE_DEFAULT 0
|
||||
|
||||
/* ----------------------- Type definitions ---------------------------------*/
|
||||
/*! \ingroup modbus
|
||||
* \brief Errorcodes used by all function in the Master request.
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
MB_MRE_NO_ERR, /*!< no error. */
|
||||
MB_MRE_NO_REG, /*!< illegal register address. */
|
||||
MB_MRE_ILL_ARG, /*!< illegal argument. */
|
||||
MB_MRE_REV_DATA, /*!< receive data error. */
|
||||
MB_MRE_TIMEDOUT, /*!< timeout error occurred. */
|
||||
MB_MRE_MASTER_BUSY, /*!< master is busy now. */
|
||||
MB_MRE_EXE_FUN /*!< execute function error. */
|
||||
} eMBMasterReqErrCode;
|
||||
/*! \ingroup modbus
|
||||
* \brief TimerMode is Master 3 kind of Timer modes.
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
MB_TMODE_T35, /*!< Master receive frame T3.5 timeout. */
|
||||
MB_TMODE_RESPOND_TIMEOUT, /*!< Master wait respond for slave. */
|
||||
MB_TMODE_CONVERT_DELAY /*!< Master sent broadcast ,then delay sometime.*/
|
||||
}eMBMasterTimerMode;
|
||||
|
||||
/* ----------------------- Function prototypes ------------------------------*/
|
||||
/*! \ingroup modbus
|
||||
* \brief Initialize the Modbus Master protocol stack.
|
||||
*
|
||||
* This functions initializes the ASCII or RTU module and calls the
|
||||
* init functions of the porting layer to prepare the hardware. Please
|
||||
* note that the receiver is still disabled and no Modbus frames are
|
||||
* processed until eMBMasterEnable( ) has been called.
|
||||
*
|
||||
* \param eMode If ASCII or RTU mode should be used.
|
||||
* \param ucPort The port to use. E.g. 1 for COM1 on windows. This value
|
||||
* is platform dependent and some ports simply choose to ignore it.
|
||||
* \param ulBaudRate The baudrate. E.g. 19200. Supported baudrates depend
|
||||
* on the porting layer.
|
||||
* \param eParity Parity used for serial transmission.
|
||||
*
|
||||
* \return If no error occurs the function returns eMBErrorCode::MB_ENOERR.
|
||||
* The protocol is then in the disabled state and ready for activation
|
||||
* by calling eMBMasterEnable( ). Otherwise one of the following error codes
|
||||
* is returned:
|
||||
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
|
||||
*/
|
||||
eMBErrorCode eMBMasterInit( eMBMode eMode, UCHAR ucPort,
|
||||
ULONG ulBaudRate, eMBParity eParity );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Initialize the Modbus Master protocol stack for Modbus TCP.
|
||||
*
|
||||
* This function initializes the Modbus TCP Module. Please note that
|
||||
* frame processing is still disabled until eMBEnable( ) is called.
|
||||
*
|
||||
* \param usTCPPort The TCP port to listen on.
|
||||
* \return If the protocol stack has been initialized correctly the function
|
||||
* returns eMBErrorCode::MB_ENOERR. Otherwise one of the following error
|
||||
* codes is returned:
|
||||
* - eMBErrorCode::MB_EINVAL If the slave address was not valid. Valid
|
||||
* slave addresses are in the range 1 - 247.
|
||||
* - eMBErrorCode::MB_EPORTERR IF the porting layer returned an error.
|
||||
*/
|
||||
eMBErrorCode eMBMasterTCPInit( USHORT usTCPPort );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Release resources used by the protocol stack.
|
||||
*
|
||||
* This function disables the Modbus Master protocol stack and release all
|
||||
* hardware resources. It must only be called when the protocol stack
|
||||
* is disabled.
|
||||
*
|
||||
* \note Note all ports implement this function. A port which wants to
|
||||
* get an callback must define the macro MB_PORT_HAS_CLOSE to 1.
|
||||
*
|
||||
* \return If the resources where released it return eMBErrorCode::MB_ENOERR.
|
||||
* If the protocol stack is not in the disabled state it returns
|
||||
* eMBErrorCode::MB_EILLSTATE.
|
||||
*/
|
||||
eMBErrorCode eMBMasterClose( void );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Enable the Modbus Master protocol stack.
|
||||
*
|
||||
* This function enables processing of Modbus Master frames. Enabling the protocol
|
||||
* stack is only possible if it is in the disabled state.
|
||||
*
|
||||
* \return If the protocol stack is now in the state enabled it returns
|
||||
* eMBErrorCode::MB_ENOERR. If it was not in the disabled state it
|
||||
* return eMBErrorCode::MB_EILLSTATE.
|
||||
*/
|
||||
eMBErrorCode eMBMasterEnable( void );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Disable the Modbus Master protocol stack.
|
||||
*
|
||||
* This function disables processing of Modbus frames.
|
||||
*
|
||||
* \return If the protocol stack has been disabled it returns
|
||||
* eMBErrorCode::MB_ENOERR. If it was not in the enabled state it returns
|
||||
* eMBErrorCode::MB_EILLSTATE.
|
||||
*/
|
||||
eMBErrorCode eMBMasterDisable( void );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Check the Modbus Master protocol stack has established or not.
|
||||
*
|
||||
* This function must be called and check the return value before calling
|
||||
* any other functions.
|
||||
*
|
||||
* \return If the protocol stack has been established or not
|
||||
* TRUE. the protocol stack has established
|
||||
* FALSE. the protocol stack hasn't established
|
||||
*/
|
||||
BOOL eMBMasterIsEstablished( void );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief The main pooling loop of the Modbus Master protocol stack.
|
||||
*
|
||||
* This function must be called periodically. The timer interval required
|
||||
* is given by the application dependent Modbus slave timeout. Internally the
|
||||
* function calls xMBMasterPortEventGet() and waits for an event from the receiver or
|
||||
* transmitter state machines.
|
||||
*
|
||||
* \return If the protocol stack is not in the enabled state the function
|
||||
* returns eMBErrorCode::MB_EILLSTATE. Otherwise it returns
|
||||
* eMBErrorCode::MB_ENOERR.
|
||||
*/
|
||||
eMBErrorCode eMBMasterPoll( void );
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Registers a callback handler for a given function code.
|
||||
*
|
||||
* This function registers a new callback handler for a given function code.
|
||||
* The callback handler supplied is responsible for interpreting the Modbus PDU and
|
||||
* the creation of an appropriate response. In case of an error it should return
|
||||
* one of the possible Modbus exceptions which results in a Modbus exception frame
|
||||
* sent by the protocol stack.
|
||||
*
|
||||
* \param ucFunctionCode The Modbus function code for which this handler should
|
||||
* be registers. Valid function codes are in the range 1 to 127.
|
||||
* \param pxHandler The function handler which should be called in case
|
||||
* such a frame is received. If \c NULL a previously registered function handler
|
||||
* for this function code is removed.
|
||||
*
|
||||
* \return eMBErrorCode::MB_ENOERR if the handler has been installed. If no
|
||||
* more resources are available it returns eMBErrorCode::MB_ENORES. In this
|
||||
* case the values in mbconfig.h should be adjusted. If the argument was not
|
||||
* valid it returns eMBErrorCode::MB_EINVAL.
|
||||
*/
|
||||
eMBErrorCode eMBMasterRegisterCB( UCHAR ucFunctionCode,
|
||||
pxMBFunctionHandler pxHandler );
|
||||
|
||||
/* ----------------------- Callback -----------------------------------------*/
|
||||
|
||||
/*! \defgroup modbus_master registers Modbus Registers
|
||||
* \code #include "mb_m.h" \endcode
|
||||
* The protocol stack does not internally allocate any memory for the
|
||||
* registers. This makes the protocol stack very small and also usable on
|
||||
* low end targets. In addition the values don't have to be in the memory
|
||||
* and could for example be stored in a flash.<br>
|
||||
* Whenever the protocol stack requires a value it calls one of the callback
|
||||
* function with the register address and the number of registers to read
|
||||
* as an argument. The application should then read the actual register values
|
||||
* (for example the ADC voltage) and should store the result in the supplied
|
||||
* buffer.<br>
|
||||
* If the protocol stack wants to update a register value because a write
|
||||
* register function was received a buffer with the new register values is
|
||||
* passed to the callback function. The function should then use these values
|
||||
* to update the application register values.
|
||||
*/
|
||||
|
||||
/*! \ingroup modbus_registers
|
||||
* \brief Callback function used if the value of a <em>Input Register</em>
|
||||
* is required by the protocol stack. The starting register address is given
|
||||
* by \c usAddress and the last register is given by <tt>usAddress +
|
||||
* usNRegs - 1</tt>.
|
||||
*
|
||||
* \param pucRegBuffer A buffer where the callback function should write
|
||||
* the current value of the modbus registers to.
|
||||
* \param usAddress The starting address of the register. Input registers
|
||||
* are in the range 1 - 65535.
|
||||
* \param usNRegs Number of registers the callback function must supply.
|
||||
*
|
||||
* \return The function must return one of the following error codes:
|
||||
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
|
||||
* Modbus response is sent.
|
||||
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
|
||||
* within the requested address range. In this case a
|
||||
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
|
||||
*/
|
||||
eMBErrorCode eMBMasterRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress,
|
||||
USHORT usNRegs );
|
||||
|
||||
/*! \ingroup modbus_registers
|
||||
* \brief Callback function used if a <em>Holding Register</em> value is
|
||||
* read or written by the protocol stack. The starting register address
|
||||
* is given by \c usAddress and the last register is given by
|
||||
* <tt>usAddress + usNRegs - 1</tt>.
|
||||
*
|
||||
* \param pucRegBuffer If the application registers values should be updated the
|
||||
* buffer points to the new registers values. If the protocol stack needs
|
||||
* to now the current values the callback function should write them into
|
||||
* this buffer.
|
||||
* \param usAddress The starting address of the register.
|
||||
* \param usNRegs Number of registers to read or write.
|
||||
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application register
|
||||
* values should be updated from the values in the buffer. For example
|
||||
* this would be the case when the Modbus master has issued an
|
||||
* <b>WRITE SINGLE REGISTER</b> command.
|
||||
* If the value eMBRegisterMode::MB_REG_READ the application should copy
|
||||
* the current values into the buffer \c pucRegBuffer.
|
||||
*
|
||||
* \return The function must return one of the following error codes:
|
||||
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
|
||||
* Modbus response is sent.
|
||||
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
|
||||
* within the requested address range. In this case a
|
||||
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
|
||||
*/
|
||||
eMBErrorCode eMBMasterRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress,
|
||||
USHORT usNRegs, eMBRegisterMode eMode );
|
||||
|
||||
/*! \ingroup modbus_registers
|
||||
* \brief Callback function used if a <em>Coil Register</em> value is
|
||||
* read or written by the protocol stack. If you are going to use
|
||||
* this function you might use the functions xMBUtilSetBits( ) and
|
||||
* xMBUtilGetBits( ) for working with bitfields.
|
||||
*
|
||||
* \param pucRegBuffer The bits are packed in bytes where the first coil
|
||||
* starting at address \c usAddress is stored in the LSB of the
|
||||
* first byte in the buffer <code>pucRegBuffer</code>.
|
||||
* If the buffer should be written by the callback function unused
|
||||
* coil values (I.e. if not a multiple of eight coils is used) should be set
|
||||
* to zero.
|
||||
* \param usAddress The first coil number.
|
||||
* \param usNCoils Number of coil values requested.
|
||||
* \param eMode If eMBRegisterMode::MB_REG_WRITE the application values should
|
||||
* be updated from the values supplied in the buffer \c pucRegBuffer.
|
||||
* If eMBRegisterMode::MB_REG_READ the application should store the current
|
||||
* values in the buffer \c pucRegBuffer.
|
||||
*
|
||||
* \return The function must return one of the following error codes:
|
||||
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
|
||||
* Modbus response is sent.
|
||||
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
|
||||
* within the requested address range. In this case a
|
||||
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
|
||||
*/
|
||||
eMBErrorCode eMBMasterRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress,
|
||||
USHORT usNCoils, eMBRegisterMode eMode );
|
||||
|
||||
/*! \ingroup modbus_registers
|
||||
* \brief Callback function used if a <em>Input Discrete Register</em> value is
|
||||
* read by the protocol stack.
|
||||
*
|
||||
* If you are going to use his function you might use the functions
|
||||
* xMBUtilSetBits( ) and xMBUtilGetBits( ) for working with bitfields.
|
||||
*
|
||||
* \param pucRegBuffer The buffer should be updated with the current
|
||||
* coil values. The first discrete input starting at \c usAddress must be
|
||||
* stored at the LSB of the first byte in the buffer. If the requested number
|
||||
* is not a multiple of eight the remaining bits should be set to zero.
|
||||
* \param usAddress The starting address of the first discrete input.
|
||||
* \param usNDiscrete Number of discrete input values.
|
||||
* \return The function must return one of the following error codes:
|
||||
* - eMBErrorCode::MB_ENOERR If no error occurred. In this case a normal
|
||||
* Modbus response is sent.
|
||||
* - eMBErrorCode::MB_ENOREG If the application does not map an coils
|
||||
* within the requested address range. In this case a
|
||||
* <b>ILLEGAL DATA ADDRESS</b> is sent as a response.
|
||||
*/
|
||||
eMBErrorCode eMBMasterRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress,
|
||||
USHORT usNDiscrete );
|
||||
|
||||
/*! \ingroup modbus
|
||||
*\brief These Modbus functions are called for user when Modbus run in Master Mode.
|
||||
*/
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadInputRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut );
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqWriteHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usRegData, LONG lTimeOut );
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqWriteMultipleHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr,
|
||||
USHORT usNRegs, USHORT * pusDataBuffer, LONG lTimeOut );
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadHoldingRegister( UCHAR ucSndAddr, USHORT usRegAddr, USHORT usNRegs, LONG lTimeOut );
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadWriteMultipleHoldingRegister( UCHAR ucSndAddr,
|
||||
USHORT usReadRegAddr, USHORT usNReadRegs, USHORT * pusDataBuffer,
|
||||
USHORT usWriteRegAddr, USHORT usNWriteRegs, LONG lTimeOut );
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadCoils( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usNCoils, LONG lTimeOut );
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqWriteCoil( UCHAR ucSndAddr, USHORT usCoilAddr, USHORT usCoilData, LONG lTimeOut );
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqWriteMultipleCoils( UCHAR ucSndAddr,
|
||||
USHORT usCoilAddr, USHORT usNCoils, UCHAR * pucDataBuffer, LONG lTimeOut );
|
||||
eMBMasterReqErrCode
|
||||
eMBMasterReqReadDiscreteInputs( UCHAR ucSndAddr, USHORT usDiscreteAddr, USHORT usNDiscreteIn, LONG lTimeOut );
|
||||
|
||||
eMBException
|
||||
eMBMasterFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen );
|
||||
eMBException
|
||||
eMBMasterFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
eMBException
|
||||
eMBMasterFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
eMBException
|
||||
eMBMasterFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
eMBException
|
||||
eMBMasterFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
eMBException
|
||||
eMBMasterFuncReadCoils( UCHAR * pucFrame, USHORT * usLen );
|
||||
eMBException
|
||||
eMBMasterFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen );
|
||||
eMBException
|
||||
eMBMasterFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen );
|
||||
eMBException
|
||||
eMBMasterFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen );
|
||||
eMBException
|
||||
eMBMasterFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
|
||||
/*£¡ \ingroup modbus
|
||||
*\brief These functions are interface for Modbus Master
|
||||
*/
|
||||
void vMBMasterGetPDUSndBuf( UCHAR ** pucFrame );
|
||||
UCHAR ucMBMasterGetDestAddress( void );
|
||||
void vMBMasterSetDestAddress( UCHAR Address );
|
||||
BOOL xMBMasterGetCBRunInMasterMode( void );
|
||||
void vMBMasterSetCBRunInMasterMode( BOOL IsMasterMode );
|
||||
USHORT usMBMasterGetPDUSndLength( void );
|
||||
void vMBMasterSetPDUSndLength( USHORT SendPDULength );
|
||||
void vMBMasterSetCurTimerMode( eMBMasterTimerMode eMBTimerMode );
|
||||
BOOL xMBMasterRequestIsBroadcast( void );
|
||||
eMBMasterErrorEventType eMBMasterGetErrorType( void );
|
||||
void vMBMasterSetErrorType( eMBMasterErrorEventType errorType );
|
||||
eMBMasterReqErrCode eMBMasterWaitRequestFinish( void );
|
||||
|
||||
/* ----------------------- Callback -----------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,124 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbconfig.h,v 1.14 2006/12/07 22:10:34 wolti Exp $
|
||||
* $Id: mbconfig.h,v 1.60 2013/08/13 21:19:55 Armink Add Master Functions $
|
||||
*/
|
||||
|
||||
#ifndef _MB_CONFIG_H
|
||||
#define _MB_CONFIG_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
/*! \defgroup modbus_cfg Modbus Configuration
|
||||
*
|
||||
* Most modules in the protocol stack are completly optional and can be
|
||||
* excluded. This is specially important if target resources are very small
|
||||
* and program memory space should be saved.<br>
|
||||
*
|
||||
* All of these settings are available in the file <code>mbconfig.h</code>
|
||||
*/
|
||||
/*! \addtogroup modbus_cfg
|
||||
* @{
|
||||
*/
|
||||
/*! \brief If Modbus Master ASCII support is enabled. */
|
||||
#define MB_MASTER_ASCII_ENABLED ( 0 )
|
||||
/*! \brief If Modbus Master RTU support is enabled. */
|
||||
#define MB_MASTER_RTU_ENABLED ( 1 )
|
||||
/*! \brief If Modbus Master TCP support is enabled. */
|
||||
#define MB_MASTER_TCP_ENABLED ( 0 )
|
||||
/*! \brief If Modbus Slave ASCII support is enabled. */
|
||||
#define MB_SLAVE_ASCII_ENABLED ( 0 )
|
||||
/*! \brief If Modbus Slave RTU support is enabled. */
|
||||
#define MB_SLAVE_RTU_ENABLED ( 1 )
|
||||
/*! \brief If Modbus Slave TCP support is enabled. */
|
||||
#define MB_SLAVE_TCP_ENABLED ( 0 )
|
||||
/*! \brief The character timeout value for Modbus ASCII.
|
||||
*
|
||||
* The character timeout value is not fixed for Modbus ASCII and is therefore
|
||||
* a configuration option. It should be set to the maximum expected delay
|
||||
* time of the network.
|
||||
*/
|
||||
#define MB_ASCII_TIMEOUT_SEC ( 1 )
|
||||
/*! \brief Maximum number of Modbus functions codes the protocol stack
|
||||
* should support.
|
||||
*
|
||||
* The maximum number of supported Modbus functions must be greater than
|
||||
* the sum of all enabled functions in this file and custom function
|
||||
* handlers. If set to small adding more functions will fail.
|
||||
*/
|
||||
#define MB_FUNC_HANDLERS_MAX ( 16 )
|
||||
/*! \brief Number of bytes which should be allocated for the <em>Report Slave ID
|
||||
* </em>command.
|
||||
*
|
||||
* This number limits the maximum size of the additional segment in the
|
||||
* report slave id function. See eMBSetSlaveID( ) for more information on
|
||||
* how to set this value. It is only used if MB_FUNC_OTHER_REP_SLAVEID_ENABLED
|
||||
* is set to <code>1</code>.
|
||||
*/
|
||||
#define MB_FUNC_OTHER_REP_SLAVEID_BUF ( 32 )
|
||||
/*! \brief If the <em>Report Slave ID</em> function should be enabled. */
|
||||
#define MB_FUNC_OTHER_REP_SLAVEID_ENABLED ( 1 )
|
||||
/*! \brief If the <em>Read Input Registers</em> function should be enabled. */
|
||||
#define MB_FUNC_READ_INPUT_ENABLED ( 1 )
|
||||
/*! \brief If the <em>Read Holding Registers</em> function should be enabled. */
|
||||
#define MB_FUNC_READ_HOLDING_ENABLED ( 1 )
|
||||
/*! \brief If the <em>Write Single Register</em> function should be enabled. */
|
||||
#define MB_FUNC_WRITE_HOLDING_ENABLED ( 1 )
|
||||
/*! \brief If the <em>Write Multiple registers</em> function should be enabled. */
|
||||
#define MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED ( 1 )
|
||||
/*! \brief If the <em>Read Coils</em> function should be enabled. */
|
||||
#define MB_FUNC_READ_COILS_ENABLED ( 1 )
|
||||
/*! \brief If the <em>Write Coils</em> function should be enabled. */
|
||||
#define MB_FUNC_WRITE_COIL_ENABLED ( 1 )
|
||||
/*! \brief If the <em>Write Multiple Coils</em> function should be enabled. */
|
||||
#define MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED ( 1 )
|
||||
/*! \brief If the <em>Read Discrete Inputs</em> function should be enabled. */
|
||||
#define MB_FUNC_READ_DISCRETE_INPUTS_ENABLED ( 1 )
|
||||
/*! \brief If the <em>Read/Write Multiple Registers</em> function should be enabled. */
|
||||
#define MB_FUNC_READWRITE_HOLDING_ENABLED ( 1 )
|
||||
/*! @} */
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
|
||||
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
|
||||
/*! \brief If master send a broadcast frame,the master will wait time of convert to delay,
|
||||
* then master can send other frame */
|
||||
#define MB_MASTER_DELAY_MS_CONVERT (200 )
|
||||
/*! \brief If master send a frame which is not broadcast,the master will wait sometime for slave.
|
||||
* And if slave is not respond in this time,the master will process this timeout error.
|
||||
* Then master can send other frame */
|
||||
#define MB_MASTER_TIMEOUT_MS_RESPOND (100 )
|
||||
/*! \brief The total slaves in Modbus Master system. Default 16.
|
||||
* \note : The slave ID must be continuous from 1.*/
|
||||
#define MB_MASTER_TOTAL_SLAVE_NUM ( 16 )
|
||||
#endif
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,87 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbframe.h,v 1.9 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
#ifndef _MB_FRAME_H
|
||||
#define _MB_FRAME_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
|
||||
/*!
|
||||
* Constants which defines the format of a modbus frame. The example is
|
||||
* shown for a Modbus RTU/ASCII frame. Note that the Modbus PDU is not
|
||||
* dependent on the underlying transport.
|
||||
*
|
||||
* <code>
|
||||
* <------------------------ MODBUS SERIAL LINE PDU (1) ------------------->
|
||||
* <----------- MODBUS PDU (1') ---------------->
|
||||
* +-----------+---------------+----------------------------+-------------+
|
||||
* | Address | Function Code | Data | CRC/LRC |
|
||||
* +-----------+---------------+----------------------------+-------------+
|
||||
* | | | |
|
||||
* (2) (3/2') (3') (4)
|
||||
*
|
||||
* (1) ... MB_SER_PDU_SIZE_MAX = 256
|
||||
* (2) ... MB_SER_PDU_ADDR_OFF = 0
|
||||
* (3) ... MB_SER_PDU_PDU_OFF = 1
|
||||
* (4) ... MB_SER_PDU_SIZE_CRC = 2
|
||||
*
|
||||
* (1') ... MB_PDU_SIZE_MAX = 253
|
||||
* (2') ... MB_PDU_FUNC_OFF = 0
|
||||
* (3') ... MB_PDU_DATA_OFF = 1
|
||||
* </code>
|
||||
*/
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_PDU_SIZE_MAX 253 /*!< Maximum size of a PDU. */
|
||||
#define MB_PDU_SIZE_MIN 1 /*!< Function Code */
|
||||
#define MB_PDU_FUNC_OFF 0 /*!< Offset of function code in PDU. */
|
||||
#define MB_PDU_DATA_OFF 1 /*!< Offset for response data in PDU. */
|
||||
|
||||
/* ----------------------- Prototypes 0-------------------------------------*/
|
||||
typedef void ( *pvMBFrameStart ) ( void );
|
||||
|
||||
typedef void ( *pvMBFrameStop ) ( void );
|
||||
|
||||
typedef eMBErrorCode( *peMBFrameReceive ) ( UCHAR * pucRcvAddress,
|
||||
UCHAR ** pucFrame,
|
||||
USHORT * pusLength );
|
||||
|
||||
typedef eMBErrorCode( *peMBFrameSend ) ( UCHAR slaveAddress,
|
||||
const UCHAR * pucFrame,
|
||||
USHORT usLength );
|
||||
|
||||
typedef void( *pvMBFrameClose ) ( void );
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,80 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbfunc.h,v 1.12 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
#ifndef _MB_FUNC_H
|
||||
#define _MB_FUNC_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
#if MB_FUNC_OTHER_REP_SLAVEID_BUF > 0
|
||||
eMBException eMBFuncReportSlaveID( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_READ_INPUT_ENABLED > 0
|
||||
eMBException eMBFuncReadInputRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_READ_HOLDING_ENABLED > 0
|
||||
eMBException eMBFuncReadHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
|
||||
eMBException eMBFuncWriteHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
|
||||
eMBException eMBFuncWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_READ_COILS_ENABLED > 0
|
||||
eMBException eMBFuncReadCoils( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_COIL_ENABLED > 0
|
||||
eMBException eMBFuncWriteCoil( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
|
||||
eMBException eMBFuncWriteMultipleCoils( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
|
||||
eMBException eMBFuncReadDiscreteInputs( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
|
||||
eMBException eMBFuncReadWriteMultipleHoldingRegister( UCHAR * pucFrame, USHORT * usLen );
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,205 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbport.h,v 1.17 2006/12/07 22:10:34 wolti Exp $
|
||||
* mbport.h,v 1.60 2013/08/17 11:42:56 Armink Add Master Functions $
|
||||
*/
|
||||
|
||||
#ifndef _MB_PORT_H
|
||||
#define _MB_PORT_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
|
||||
/* ----------------------- Type definitions ---------------------------------*/
|
||||
|
||||
typedef enum
|
||||
{
|
||||
EV_READY = 1<<0, /*!< Startup finished. */
|
||||
EV_FRAME_RECEIVED = 1<<1, /*!< Frame received. */
|
||||
EV_EXECUTE = 1<<2, /*!< Execute function. */
|
||||
EV_FRAME_SENT = 1<<3 /*!< Frame sent. */
|
||||
} eMBEventType;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
EV_MASTER_READY = 1<<0, /*!< Startup finished. */
|
||||
EV_MASTER_FRAME_RECEIVED = 1<<1, /*!< Frame received. */
|
||||
EV_MASTER_EXECUTE = 1<<2, /*!< Execute function. */
|
||||
EV_MASTER_FRAME_SENT = 1<<3, /*!< Frame sent. */
|
||||
EV_MASTER_ERROR_PROCESS = 1<<4, /*!< Frame error process. */
|
||||
EV_MASTER_PROCESS_SUCESS = 1<<5, /*!< Request process success. */
|
||||
EV_MASTER_ERROR_RESPOND_TIMEOUT = 1<<6, /*!< Request respond timeout. */
|
||||
EV_MASTER_ERROR_RECEIVE_DATA = 1<<7, /*!< Request receive data error. */
|
||||
EV_MASTER_ERROR_EXECUTE_FUNCTION = 1<<8, /*!< Request execute function error. */
|
||||
} eMBMasterEventType;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
EV_ERROR_RESPOND_TIMEOUT, /*!< Slave respond timeout. */
|
||||
EV_ERROR_RECEIVE_DATA, /*!< Receive frame data erroe. */
|
||||
EV_ERROR_EXECUTE_FUNCTION, /*!< Execute function error. */
|
||||
} eMBMasterErrorEventType;
|
||||
|
||||
/*! \ingroup modbus
|
||||
* \brief Parity used for characters in serial mode.
|
||||
*
|
||||
* The parity which should be applied to the characters sent over the serial
|
||||
* link. Please note that this values are actually passed to the porting
|
||||
* layer and therefore not all parity modes might be available.
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
MB_PAR_NONE, /*!< No parity. */
|
||||
MB_PAR_ODD, /*!< Odd parity. */
|
||||
MB_PAR_EVEN /*!< Even parity. */
|
||||
} eMBParity;
|
||||
|
||||
/* ----------------------- Supporting functions -----------------------------*/
|
||||
BOOL xMBPortEventInit( void );
|
||||
|
||||
BOOL xMBPortEventPost( eMBEventType eEvent );
|
||||
|
||||
BOOL xMBPortEventGet( /*@out@ */ eMBEventType * eEvent );
|
||||
|
||||
BOOL xMBMasterPortEventInit( void );
|
||||
|
||||
BOOL xMBMasterPortEventPost( eMBMasterEventType eEvent );
|
||||
|
||||
BOOL xMBMasterPortEventGet( /*@out@ */ eMBMasterEventType * eEvent );
|
||||
|
||||
void vMBMasterOsResInit( void );
|
||||
|
||||
BOOL xMBMasterRunResTake( int32_t time );
|
||||
|
||||
void vMBMasterRunResRelease( void );
|
||||
|
||||
/* ----------------------- Serial port functions ----------------------------*/
|
||||
|
||||
BOOL xMBPortSerialInit( UCHAR ucPort, ULONG ulBaudRate,
|
||||
UCHAR ucDataBits, eMBParity eParity );
|
||||
|
||||
void vMBPortClose( void );
|
||||
|
||||
void xMBPortSerialClose( void );
|
||||
|
||||
void vMBPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable );
|
||||
|
||||
INLINE BOOL xMBPortSerialGetByte( CHAR * pucByte );
|
||||
|
||||
INLINE BOOL xMBPortSerialPutByte( CHAR ucByte );
|
||||
|
||||
BOOL xMBMasterPortSerialInit( UCHAR ucPort, ULONG ulBaudRate,
|
||||
UCHAR ucDataBits, eMBParity eParity );
|
||||
|
||||
void vMBMasterPortClose( void );
|
||||
|
||||
void xMBMasterPortSerialClose( void );
|
||||
|
||||
void vMBMasterPortSerialEnable( BOOL xRxEnable, BOOL xTxEnable );
|
||||
|
||||
INLINE BOOL xMBMasterPortSerialGetByte( CHAR * pucByte );
|
||||
|
||||
INLINE BOOL xMBMasterPortSerialPutByte( CHAR ucByte );
|
||||
|
||||
/* ----------------------- Timers functions ---------------------------------*/
|
||||
BOOL xMBPortTimersInit( USHORT usTimeOut50us );
|
||||
|
||||
void xMBPortTimersClose( void );
|
||||
|
||||
INLINE void vMBPortTimersEnable( void );
|
||||
|
||||
INLINE void vMBPortTimersDisable( void );
|
||||
|
||||
BOOL xMBMasterPortTimersInit( USHORT usTimeOut50us );
|
||||
|
||||
void xMBMasterPortTimersClose( void );
|
||||
|
||||
INLINE void vMBMasterPortTimersT35Enable( void );
|
||||
|
||||
INLINE void vMBMasterPortTimersConvertDelayEnable( void );
|
||||
|
||||
INLINE void vMBMasterPortTimersRespondTimeoutEnable( void );
|
||||
|
||||
INLINE void vMBMasterPortTimersDisable( void );
|
||||
|
||||
/* ----------------- Callback for the master error process ------------------*/
|
||||
void vMBMasterErrorCBRespondTimeout( UCHAR ucDestAddress, const UCHAR* pucPDUData,
|
||||
USHORT ucPDULength );
|
||||
|
||||
void vMBMasterErrorCBReceiveData( UCHAR ucDestAddress, const UCHAR* pucPDUData,
|
||||
USHORT ucPDULength );
|
||||
|
||||
void vMBMasterErrorCBExecuteFunction( UCHAR ucDestAddress, const UCHAR* pucPDUData,
|
||||
USHORT ucPDULength );
|
||||
|
||||
void vMBMasterCBRequestScuuess( void );
|
||||
|
||||
/* ----------------------- Callback for the protocol stack ------------------*/
|
||||
|
||||
/*!
|
||||
* \brief Callback function for the porting layer when a new byte is
|
||||
* available.
|
||||
*
|
||||
* Depending upon the mode this callback function is used by the RTU or
|
||||
* ASCII transmission layers. In any case a call to xMBPortSerialGetByte()
|
||||
* must immediately return a new character.
|
||||
*
|
||||
* \return <code>TRUE</code> if a event was posted to the queue because
|
||||
* a new byte was received. The port implementation should wake up the
|
||||
* tasks which are currently blocked on the eventqueue.
|
||||
*/
|
||||
extern BOOL( *pxMBFrameCBByteReceived ) ( void );
|
||||
|
||||
extern BOOL( *pxMBFrameCBTransmitterEmpty ) ( void );
|
||||
|
||||
extern BOOL( *pxMBPortCBTimerExpired ) ( void );
|
||||
|
||||
extern BOOL( *pxMBMasterFrameCBByteReceived ) ( void );
|
||||
|
||||
extern BOOL( *pxMBMasterFrameCBTransmitterEmpty ) ( void );
|
||||
|
||||
extern BOOL( *pxMBMasterPortCBTimerExpired ) ( void );
|
||||
|
||||
/* ----------------------- TCP port functions -------------------------------*/
|
||||
BOOL xMBTCPPortInit( USHORT usTCPPort );
|
||||
|
||||
void vMBTCPPortClose( void );
|
||||
|
||||
void vMBTCPPortDisable( void );
|
||||
|
||||
BOOL xMBTCPPortGetRequest( UCHAR **ppucMBTCPFrame, USHORT * usTCPLength );
|
||||
|
||||
BOOL xMBTCPPortSendResponse( const UCHAR *pucMBTCPFrame, USHORT usTCPLength );
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,83 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbproto.h,v 1.14 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
#ifndef _MB_PROTO_H
|
||||
#define _MB_PROTO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_ADDRESS_BROADCAST ( 0 ) /*! Modbus broadcast address. */
|
||||
#define MB_ADDRESS_MIN ( 1 ) /*! Smallest possible slave address. */
|
||||
#define MB_ADDRESS_MAX ( 247 ) /*! Biggest possible slave address. */
|
||||
#define MB_FUNC_NONE ( 0 )
|
||||
#define MB_FUNC_READ_COILS ( 1 )
|
||||
#define MB_FUNC_READ_DISCRETE_INPUTS ( 2 )
|
||||
#define MB_FUNC_WRITE_SINGLE_COIL ( 5 )
|
||||
#define MB_FUNC_WRITE_MULTIPLE_COILS ( 15 )
|
||||
#define MB_FUNC_READ_HOLDING_REGISTER ( 3 )
|
||||
#define MB_FUNC_READ_INPUT_REGISTER ( 4 )
|
||||
#define MB_FUNC_WRITE_REGISTER ( 6 )
|
||||
#define MB_FUNC_WRITE_MULTIPLE_REGISTERS ( 16 )
|
||||
#define MB_FUNC_READWRITE_MULTIPLE_REGISTERS ( 23 )
|
||||
#define MB_FUNC_DIAG_READ_EXCEPTION ( 7 )
|
||||
#define MB_FUNC_DIAG_DIAGNOSTIC ( 8 )
|
||||
#define MB_FUNC_DIAG_GET_COM_EVENT_CNT ( 11 )
|
||||
#define MB_FUNC_DIAG_GET_COM_EVENT_LOG ( 12 )
|
||||
#define MB_FUNC_OTHER_REPORT_SLAVEID ( 17 )
|
||||
#define MB_FUNC_ERROR ( 128 )
|
||||
/* ----------------------- Type definitions ---------------------------------*/
|
||||
typedef enum
|
||||
{
|
||||
MB_EX_NONE = 0x00,
|
||||
MB_EX_ILLEGAL_FUNCTION = 0x01,
|
||||
MB_EX_ILLEGAL_DATA_ADDRESS = 0x02,
|
||||
MB_EX_ILLEGAL_DATA_VALUE = 0x03,
|
||||
MB_EX_SLAVE_DEVICE_FAILURE = 0x04,
|
||||
MB_EX_ACKNOWLEDGE = 0x05,
|
||||
MB_EX_SLAVE_BUSY = 0x06,
|
||||
MB_EX_MEMORY_PARITY_ERROR = 0x08,
|
||||
MB_EX_GATEWAY_PATH_FAILED = 0x0A,
|
||||
MB_EX_GATEWAY_TGT_FAILED = 0x0B
|
||||
} eMBException;
|
||||
|
||||
typedef eMBException( *pxMBFunctionHandler ) ( UCHAR * pucFrame, USHORT * pusLength );
|
||||
|
||||
typedef struct
|
||||
{
|
||||
UCHAR ucFunctionCode;
|
||||
pxMBFunctionHandler pxHandler;
|
||||
} xMBFunctionHandler;
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,108 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbutils.h,v 1.5 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
#ifndef _MB_UTILS_H
|
||||
#define _MB_UTILS_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
/*! \defgroup modbus_utils Utilities
|
||||
*
|
||||
* This module contains some utility functions which can be used by
|
||||
* the application. It includes some special functions for working with
|
||||
* bitfields backed by a character array buffer.
|
||||
*
|
||||
*/
|
||||
/*! \addtogroup modbus_utils
|
||||
* @{
|
||||
*/
|
||||
/*! \brief Function to set bits in a byte buffer.
|
||||
*
|
||||
* This function allows the efficient use of an array to implement bitfields.
|
||||
* The array used for storing the bits must always be a multiple of two
|
||||
* bytes. Up to eight bits can be set or cleared in one operation.
|
||||
*
|
||||
* \param ucByteBuf A buffer where the bit values are stored. Must be a
|
||||
* multiple of 2 bytes. No length checking is performed and if
|
||||
* usBitOffset / 8 is greater than the size of the buffer memory contents
|
||||
* is overwritten.
|
||||
* \param usBitOffset The starting address of the bits to set. The first
|
||||
* bit has the offset 0.
|
||||
* \param ucNBits Number of bits to modify. The value must always be smaller
|
||||
* than 8.
|
||||
* \param ucValues Thew new values for the bits. The value for the first bit
|
||||
* starting at <code>usBitOffset</code> is the LSB of the value
|
||||
* <code>ucValues</code>
|
||||
*
|
||||
* \code
|
||||
* ucBits[2] = {0, 0};
|
||||
*
|
||||
* // Set bit 4 to 1 (read: set 1 bit starting at bit offset 4 to value 1)
|
||||
* xMBUtilSetBits( ucBits, 4, 1, 1 );
|
||||
*
|
||||
* // Set bit 7 to 1 and bit 8 to 0.
|
||||
* xMBUtilSetBits( ucBits, 7, 2, 0x01 );
|
||||
*
|
||||
* // Set bits 8 - 11 to 0x05 and bits 12 - 15 to 0x0A;
|
||||
* xMBUtilSetBits( ucBits, 8, 8, 0x5A);
|
||||
* \endcode
|
||||
*/
|
||||
void xMBUtilSetBits( UCHAR * ucByteBuf, USHORT usBitOffset,
|
||||
UCHAR ucNBits, UCHAR ucValues );
|
||||
|
||||
/*! \brief Function to read bits in a byte buffer.
|
||||
*
|
||||
* This function is used to extract up bit values from an array. Up to eight
|
||||
* bit values can be extracted in one step.
|
||||
*
|
||||
* \param ucByteBuf A buffer where the bit values are stored.
|
||||
* \param usBitOffset The starting address of the bits to set. The first
|
||||
* bit has the offset 0.
|
||||
* \param ucNBits Number of bits to modify. The value must always be smaller
|
||||
* than 8.
|
||||
*
|
||||
* \code
|
||||
* UCHAR ucBits[2] = {0, 0};
|
||||
* UCHAR ucResult;
|
||||
*
|
||||
* // Extract the bits 3 - 10.
|
||||
* ucResult = xMBUtilGetBits( ucBits, 3, 8 );
|
||||
* \endcode
|
||||
*/
|
||||
UCHAR xMBUtilGetBits( UCHAR * ucByteBuf, USHORT usBitOffset,
|
||||
UCHAR ucNBits );
|
||||
|
||||
/*! @} */
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,412 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mb.c,v 1.27 2007/02/18 23:45:41 wolti Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
|
||||
#include "mb.h"
|
||||
#include "mbconfig.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbfunc.h"
|
||||
|
||||
#include "mbport.h"
|
||||
#if MB_SLAVE_RTU_ENABLED == 1
|
||||
#include "mbrtu.h"
|
||||
#endif
|
||||
#if MB_SLAVE_ASCII_ENABLED == 1
|
||||
#include "mbascii.h"
|
||||
#endif
|
||||
#if MB_SLAVE_TCP_ENABLED == 1
|
||||
#include "mbtcp.h"
|
||||
#endif
|
||||
|
||||
#ifndef MB_PORT_HAS_CLOSE
|
||||
#define MB_PORT_HAS_CLOSE 0
|
||||
#endif
|
||||
|
||||
/* ----------------------- Static variables ---------------------------------*/
|
||||
|
||||
static UCHAR ucMBAddress;
|
||||
static eMBMode eMBCurrentMode;
|
||||
|
||||
static enum
|
||||
{
|
||||
STATE_ENABLED,
|
||||
STATE_DISABLED,
|
||||
STATE_NOT_INITIALIZED
|
||||
} eMBState = STATE_NOT_INITIALIZED;
|
||||
|
||||
/* Functions pointer which are initialized in eMBInit( ). Depending on the
|
||||
* mode (RTU or ASCII) the are set to the correct implementations.
|
||||
* Using for Modbus Slave
|
||||
*/
|
||||
static peMBFrameSend peMBFrameSendCur;
|
||||
static pvMBFrameStart pvMBFrameStartCur;
|
||||
static pvMBFrameStop pvMBFrameStopCur;
|
||||
static peMBFrameReceive peMBFrameReceiveCur;
|
||||
static pvMBFrameClose pvMBFrameCloseCur;
|
||||
|
||||
/* Callback functions required by the porting layer. They are called when
|
||||
* an external event has happend which includes a timeout or the reception
|
||||
* or transmission of a character.
|
||||
* Using for Modbus Slave
|
||||
*/
|
||||
BOOL( *pxMBFrameCBByteReceived ) ( void );
|
||||
BOOL( *pxMBFrameCBTransmitterEmpty ) ( void );
|
||||
BOOL( *pxMBPortCBTimerExpired ) ( void );
|
||||
|
||||
BOOL( *pxMBFrameCBReceiveFSMCur ) ( void );
|
||||
BOOL( *pxMBFrameCBTransmitFSMCur ) ( void );
|
||||
|
||||
/* An array of Modbus functions handlers which associates Modbus function
|
||||
* codes with implementing functions.
|
||||
*/
|
||||
static xMBFunctionHandler xFuncHandlers[MB_FUNC_HANDLERS_MAX] = {
|
||||
#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
|
||||
{MB_FUNC_OTHER_REPORT_SLAVEID, eMBFuncReportSlaveID},
|
||||
#endif
|
||||
#if MB_FUNC_READ_INPUT_ENABLED > 0
|
||||
{MB_FUNC_READ_INPUT_REGISTER, eMBFuncReadInputRegister},
|
||||
#endif
|
||||
#if MB_FUNC_READ_HOLDING_ENABLED > 0
|
||||
{MB_FUNC_READ_HOLDING_REGISTER, eMBFuncReadHoldingRegister},
|
||||
#endif
|
||||
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
|
||||
{MB_FUNC_WRITE_MULTIPLE_REGISTERS, eMBFuncWriteMultipleHoldingRegister},
|
||||
#endif
|
||||
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
|
||||
{MB_FUNC_WRITE_REGISTER, eMBFuncWriteHoldingRegister},
|
||||
#endif
|
||||
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
|
||||
{MB_FUNC_READWRITE_MULTIPLE_REGISTERS, eMBFuncReadWriteMultipleHoldingRegister},
|
||||
#endif
|
||||
#if MB_FUNC_READ_COILS_ENABLED > 0
|
||||
{MB_FUNC_READ_COILS, eMBFuncReadCoils},
|
||||
#endif
|
||||
#if MB_FUNC_WRITE_COIL_ENABLED > 0
|
||||
{MB_FUNC_WRITE_SINGLE_COIL, eMBFuncWriteCoil},
|
||||
#endif
|
||||
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
|
||||
{MB_FUNC_WRITE_MULTIPLE_COILS, eMBFuncWriteMultipleCoils},
|
||||
#endif
|
||||
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
|
||||
{MB_FUNC_READ_DISCRETE_INPUTS, eMBFuncReadDiscreteInputs},
|
||||
#endif
|
||||
};
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
eMBErrorCode
|
||||
eMBInit( eMBMode eMode, UCHAR ucSlaveAddress, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
/* check preconditions */
|
||||
if( ( ucSlaveAddress == MB_ADDRESS_BROADCAST ) ||
|
||||
( ucSlaveAddress < MB_ADDRESS_MIN ) || ( ucSlaveAddress > MB_ADDRESS_MAX ) )
|
||||
{
|
||||
eStatus = MB_EINVAL;
|
||||
}
|
||||
else
|
||||
{
|
||||
ucMBAddress = ucSlaveAddress;
|
||||
|
||||
switch ( eMode )
|
||||
{
|
||||
#if MB_SLAVE_RTU_ENABLED > 0
|
||||
case MB_RTU:
|
||||
pvMBFrameStartCur = eMBRTUStart;
|
||||
pvMBFrameStopCur = eMBRTUStop;
|
||||
peMBFrameSendCur = eMBRTUSend;
|
||||
peMBFrameReceiveCur = eMBRTUReceive;
|
||||
pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBPortClose : NULL;
|
||||
pxMBFrameCBByteReceived = xMBRTUReceiveFSM;
|
||||
pxMBFrameCBTransmitterEmpty = xMBRTUTransmitFSM;
|
||||
pxMBPortCBTimerExpired = xMBRTUTimerT35Expired;
|
||||
|
||||
eStatus = eMBRTUInit( ucMBAddress, ucPort, ulBaudRate, eParity );
|
||||
break;
|
||||
#endif
|
||||
#if MB_SLAVE_ASCII_ENABLED > 0
|
||||
case MB_ASCII:
|
||||
pvMBFrameStartCur = eMBASCIIStart;
|
||||
pvMBFrameStopCur = eMBASCIIStop;
|
||||
peMBFrameSendCur = eMBASCIISend;
|
||||
peMBFrameReceiveCur = eMBASCIIReceive;
|
||||
pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBPortClose : NULL;
|
||||
pxMBFrameCBByteReceived = xMBASCIIReceiveFSM;
|
||||
pxMBFrameCBTransmitterEmpty = xMBASCIITransmitFSM;
|
||||
pxMBPortCBTimerExpired = xMBASCIITimerT1SExpired;
|
||||
|
||||
eStatus = eMBASCIIInit( ucMBAddress, ucPort, ulBaudRate, eParity );
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
eStatus = MB_EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
if( eStatus == MB_ENOERR )
|
||||
{
|
||||
if( !xMBPortEventInit( ) )
|
||||
{
|
||||
/* port dependent event module initalization failed. */
|
||||
eStatus = MB_EPORTERR;
|
||||
}
|
||||
else
|
||||
{
|
||||
eMBCurrentMode = eMode;
|
||||
eMBState = STATE_DISABLED;
|
||||
}
|
||||
}
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#if MB_SLAVE_TCP_ENABLED > 0
|
||||
eMBErrorCode
|
||||
eMBTCPInit( USHORT ucTCPPort )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
if( ( eStatus = eMBTCPDoInit( ucTCPPort ) ) != MB_ENOERR )
|
||||
{
|
||||
eMBState = STATE_DISABLED;
|
||||
}
|
||||
else if( !xMBPortEventInit( ) )
|
||||
{
|
||||
/* Port dependent event module initalization failed. */
|
||||
eStatus = MB_EPORTERR;
|
||||
}
|
||||
else
|
||||
{
|
||||
pvMBFrameStartCur = eMBTCPStart;
|
||||
pvMBFrameStopCur = eMBTCPStop;
|
||||
peMBFrameReceiveCur = eMBTCPReceive;
|
||||
peMBFrameSendCur = eMBTCPSend;
|
||||
pvMBFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBTCPPortClose : NULL;
|
||||
ucMBAddress = MB_TCP_PSEUDO_ADDRESS;
|
||||
eMBCurrentMode = MB_TCP;
|
||||
eMBState = STATE_DISABLED;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
#endif
|
||||
|
||||
eMBErrorCode
|
||||
eMBRegisterCB( UCHAR ucFunctionCode, pxMBFunctionHandler pxHandler )
|
||||
{
|
||||
int i;
|
||||
eMBErrorCode eStatus;
|
||||
|
||||
if( ( 0 < ucFunctionCode ) && ( ucFunctionCode <= 127 ) )
|
||||
{
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
if( pxHandler != NULL )
|
||||
{
|
||||
for( i = 0; i < MB_FUNC_HANDLERS_MAX; i++ )
|
||||
{
|
||||
if( ( xFuncHandlers[i].pxHandler == NULL ) ||
|
||||
( xFuncHandlers[i].pxHandler == pxHandler ) )
|
||||
{
|
||||
xFuncHandlers[i].ucFunctionCode = ucFunctionCode;
|
||||
xFuncHandlers[i].pxHandler = pxHandler;
|
||||
break;
|
||||
}
|
||||
}
|
||||
eStatus = ( i != MB_FUNC_HANDLERS_MAX ) ? MB_ENOERR : MB_ENORES;
|
||||
}
|
||||
else
|
||||
{
|
||||
for( i = 0; i < MB_FUNC_HANDLERS_MAX; i++ )
|
||||
{
|
||||
if( xFuncHandlers[i].ucFunctionCode == ucFunctionCode )
|
||||
{
|
||||
xFuncHandlers[i].ucFunctionCode = 0;
|
||||
xFuncHandlers[i].pxHandler = NULL;
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* Remove can't fail. */
|
||||
eStatus = MB_ENOERR;
|
||||
}
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EINVAL;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
|
||||
eMBErrorCode
|
||||
eMBClose( void )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
if( eMBState == STATE_DISABLED )
|
||||
{
|
||||
if( pvMBFrameCloseCur != NULL )
|
||||
{
|
||||
pvMBFrameCloseCur( );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EILLSTATE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
|
||||
eMBErrorCode
|
||||
eMBEnable( void )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
if( eMBState == STATE_DISABLED )
|
||||
{
|
||||
/* Activate the protocol stack. */
|
||||
pvMBFrameStartCur( );
|
||||
eMBState = STATE_ENABLED;
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EILLSTATE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBDisable( void )
|
||||
{
|
||||
eMBErrorCode eStatus;
|
||||
|
||||
if( eMBState == STATE_ENABLED )
|
||||
{
|
||||
pvMBFrameStopCur( );
|
||||
eMBState = STATE_DISABLED;
|
||||
eStatus = MB_ENOERR;
|
||||
}
|
||||
else if( eMBState == STATE_DISABLED )
|
||||
{
|
||||
eStatus = MB_ENOERR;
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EILLSTATE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBErrorCode eMBPoll( void )
|
||||
{
|
||||
static UCHAR *ucMBFrame;
|
||||
static UCHAR ucRcvAddress;
|
||||
static UCHAR ucFunctionCode;
|
||||
static USHORT usLength;
|
||||
static eMBException eException;
|
||||
|
||||
int i;
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
eMBEventType eEvent;
|
||||
|
||||
/* Check if the protocol stack is ready. */
|
||||
if( eMBState != STATE_ENABLED )
|
||||
{
|
||||
return MB_EILLSTATE;
|
||||
}
|
||||
|
||||
/* Check if there is a event available. If not return control to caller.
|
||||
* Otherwise we will handle the event. */
|
||||
if( xMBPortEventGet( &eEvent ) == TRUE )
|
||||
{
|
||||
switch ( eEvent )
|
||||
{
|
||||
case EV_READY:
|
||||
break;
|
||||
|
||||
case EV_FRAME_RECEIVED:
|
||||
eStatus = peMBFrameReceiveCur( &ucRcvAddress, &ucMBFrame, &usLength );
|
||||
if( eStatus == MB_ENOERR )
|
||||
{
|
||||
/* Check if the frame is for us. If not ignore the frame. */
|
||||
if( ( ucRcvAddress == ucMBAddress ) || ( ucRcvAddress == MB_ADDRESS_BROADCAST ) )
|
||||
{
|
||||
( void )xMBPortEventPost( EV_EXECUTE );
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case EV_EXECUTE:
|
||||
ucFunctionCode = ucMBFrame[MB_PDU_FUNC_OFF];
|
||||
eException = MB_EX_ILLEGAL_FUNCTION;
|
||||
for( i = 0; i < MB_FUNC_HANDLERS_MAX; i++ )
|
||||
{
|
||||
/* No more function handlers registered. Abort. */
|
||||
if( xFuncHandlers[i].ucFunctionCode == 0 )
|
||||
{
|
||||
break;
|
||||
}
|
||||
else if( xFuncHandlers[i].ucFunctionCode == ucFunctionCode )
|
||||
{
|
||||
eException = xFuncHandlers[i].pxHandler( ucMBFrame, &usLength );
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* If the request was not sent to the broadcast address we
|
||||
* return a reply. */
|
||||
if( ucRcvAddress != MB_ADDRESS_BROADCAST )
|
||||
{
|
||||
if( eException != MB_EX_NONE )
|
||||
{
|
||||
/* An exception occured. Build an error frame. */
|
||||
usLength = 0;
|
||||
ucMBFrame[usLength++] = ( UCHAR )( ucFunctionCode | MB_FUNC_ERROR );
|
||||
ucMBFrame[usLength++] = eException;
|
||||
}
|
||||
eStatus = peMBFrameSendCur( ucMBAddress, ucMBFrame, usLength );
|
||||
}
|
||||
break;
|
||||
|
||||
case EV_FRAME_SENT:
|
||||
break;
|
||||
}
|
||||
}
|
||||
return MB_ENOERR;
|
||||
}
|
||||
@@ -0,0 +1,426 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (C) 2013 Armink <armink.ztl@gmail.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbrtu_m.c,v 1.60 2013/08/20 11:18:10 Armink Add Master Functions $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
|
||||
#include "mb.h"
|
||||
#include "mb_m.h"
|
||||
#include "mbconfig.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbproto.h"
|
||||
#include "mbfunc.h"
|
||||
|
||||
#include "mbport.h"
|
||||
#if MB_MASTER_RTU_ENABLED == 1
|
||||
#include "mbrtu.h"
|
||||
#endif
|
||||
#if MB_MASTER_ASCII_ENABLED == 1
|
||||
#include "mbascii.h"
|
||||
#endif
|
||||
#if MB_MASTER_TCP_ENABLED == 1
|
||||
#include "mbtcp.h"
|
||||
#endif
|
||||
|
||||
#if MB_MASTER_RTU_ENABLED > 0 || MB_MASTER_ASCII_ENABLED > 0
|
||||
|
||||
#ifndef MB_PORT_HAS_CLOSE
|
||||
#define MB_PORT_HAS_CLOSE 0
|
||||
#endif
|
||||
|
||||
/* ----------------------- Static variables ---------------------------------*/
|
||||
|
||||
static UCHAR ucMBMasterDestAddress;
|
||||
static BOOL xMBRunInMasterMode = FALSE;
|
||||
static eMBMasterErrorEventType eMBMasterCurErrorType;
|
||||
|
||||
static enum
|
||||
{
|
||||
STATE_ENABLED,
|
||||
STATE_DISABLED,
|
||||
STATE_NOT_INITIALIZED,
|
||||
STATE_ESTABLISHED,
|
||||
} eMBState = STATE_NOT_INITIALIZED;
|
||||
|
||||
/* Functions pointer which are initialized in eMBInit( ). Depending on the
|
||||
* mode (RTU or ASCII) the are set to the correct implementations.
|
||||
* Using for Modbus Master,Add by Armink 20130813
|
||||
*/
|
||||
static peMBFrameSend peMBMasterFrameSendCur;
|
||||
static pvMBFrameStart pvMBMasterFrameStartCur;
|
||||
static pvMBFrameStop pvMBMasterFrameStopCur;
|
||||
static peMBFrameReceive peMBMasterFrameReceiveCur;
|
||||
static pvMBFrameClose pvMBMasterFrameCloseCur;
|
||||
|
||||
/* Callback functions required by the porting layer. They are called when
|
||||
* an external event has happend which includes a timeout or the reception
|
||||
* or transmission of a character.
|
||||
* Using for Modbus Master,Add by Armink 20130813
|
||||
*/
|
||||
BOOL( *pxMBMasterFrameCBByteReceived ) ( void );
|
||||
BOOL( *pxMBMasterFrameCBTransmitterEmpty ) ( void );
|
||||
BOOL( *pxMBMasterPortCBTimerExpired ) ( void );
|
||||
|
||||
BOOL( *pxMBMasterFrameCBReceiveFSMCur ) ( void );
|
||||
BOOL( *pxMBMasterFrameCBTransmitFSMCur ) ( void );
|
||||
|
||||
/* An array of Modbus functions handlers which associates Modbus function
|
||||
* codes with implementing functions.
|
||||
*/
|
||||
static xMBFunctionHandler xMasterFuncHandlers[MB_FUNC_HANDLERS_MAX] = {
|
||||
#if MB_FUNC_OTHER_REP_SLAVEID_ENABLED > 0
|
||||
//TODO Add Master function define
|
||||
{MB_FUNC_OTHER_REPORT_SLAVEID, eMBFuncReportSlaveID},
|
||||
#endif
|
||||
#if MB_FUNC_READ_INPUT_ENABLED > 0
|
||||
{MB_FUNC_READ_INPUT_REGISTER, eMBMasterFuncReadInputRegister},
|
||||
#endif
|
||||
#if MB_FUNC_READ_HOLDING_ENABLED > 0
|
||||
{MB_FUNC_READ_HOLDING_REGISTER, eMBMasterFuncReadHoldingRegister},
|
||||
#endif
|
||||
#if MB_FUNC_WRITE_MULTIPLE_HOLDING_ENABLED > 0
|
||||
{MB_FUNC_WRITE_MULTIPLE_REGISTERS, eMBMasterFuncWriteMultipleHoldingRegister},
|
||||
#endif
|
||||
#if MB_FUNC_WRITE_HOLDING_ENABLED > 0
|
||||
{MB_FUNC_WRITE_REGISTER, eMBMasterFuncWriteHoldingRegister},
|
||||
#endif
|
||||
#if MB_FUNC_READWRITE_HOLDING_ENABLED > 0
|
||||
{MB_FUNC_READWRITE_MULTIPLE_REGISTERS, eMBMasterFuncReadWriteMultipleHoldingRegister},
|
||||
#endif
|
||||
#if MB_FUNC_READ_COILS_ENABLED > 0
|
||||
{MB_FUNC_READ_COILS, eMBMasterFuncReadCoils},
|
||||
#endif
|
||||
#if MB_FUNC_WRITE_COIL_ENABLED > 0
|
||||
{MB_FUNC_WRITE_SINGLE_COIL, eMBMasterFuncWriteCoil},
|
||||
#endif
|
||||
#if MB_FUNC_WRITE_MULTIPLE_COILS_ENABLED > 0
|
||||
{MB_FUNC_WRITE_MULTIPLE_COILS, eMBMasterFuncWriteMultipleCoils},
|
||||
#endif
|
||||
#if MB_FUNC_READ_DISCRETE_INPUTS_ENABLED > 0
|
||||
{MB_FUNC_READ_DISCRETE_INPUTS, eMBMasterFuncReadDiscreteInputs},
|
||||
#endif
|
||||
};
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
eMBErrorCode
|
||||
eMBMasterInit( eMBMode eMode, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
switch (eMode)
|
||||
{
|
||||
#if MB_MASTER_RTU_ENABLED > 0
|
||||
case MB_RTU:
|
||||
pvMBMasterFrameStartCur = eMBMasterRTUStart;
|
||||
pvMBMasterFrameStopCur = eMBMasterRTUStop;
|
||||
peMBMasterFrameSendCur = eMBMasterRTUSend;
|
||||
peMBMasterFrameReceiveCur = eMBMasterRTUReceive;
|
||||
pvMBMasterFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBMasterPortClose : NULL;
|
||||
pxMBMasterFrameCBByteReceived = xMBMasterRTUReceiveFSM;
|
||||
pxMBMasterFrameCBTransmitterEmpty = xMBMasterRTUTransmitFSM;
|
||||
pxMBMasterPortCBTimerExpired = xMBMasterRTUTimerExpired;
|
||||
|
||||
eStatus = eMBMasterRTUInit(ucPort, ulBaudRate, eParity);
|
||||
break;
|
||||
#endif
|
||||
#if MB_MASTER_ASCII_ENABLED > 0
|
||||
case MB_ASCII:
|
||||
pvMBMasterFrameStartCur = eMBMasterASCIIStart;
|
||||
pvMBMasterFrameStopCur = eMBMasterASCIIStop;
|
||||
peMBMasterFrameSendCur = eMBMasterASCIISend;
|
||||
peMBMasterFrameReceiveCur = eMBMasterASCIIReceive;
|
||||
pvMBMasterFrameCloseCur = MB_PORT_HAS_CLOSE ? vMBMasterPortClose : NULL;
|
||||
pxMBMasterFrameCBByteReceived = xMBMasterASCIIReceiveFSM;
|
||||
pxMBMasterFrameCBTransmitterEmpty = xMBMasterASCIITransmitFSM;
|
||||
pxMBMasterPortCBTimerExpired = xMBMasterASCIITimerT1SExpired;
|
||||
|
||||
eStatus = eMBMasterASCIIInit(ucPort, ulBaudRate, eParity );
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
eStatus = MB_EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
if (eStatus == MB_ENOERR)
|
||||
{
|
||||
if (!xMBMasterPortEventInit())
|
||||
{
|
||||
/* port dependent event module initalization failed. */
|
||||
eStatus = MB_EPORTERR;
|
||||
}
|
||||
else
|
||||
{
|
||||
eMBState = STATE_DISABLED;
|
||||
}
|
||||
/* initialize the OS resource for modbus master. */
|
||||
vMBMasterOsResInit();
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBMasterClose( void )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
if( eMBState == STATE_DISABLED )
|
||||
{
|
||||
if( pvMBMasterFrameCloseCur != NULL )
|
||||
{
|
||||
pvMBMasterFrameCloseCur( );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EILLSTATE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBMasterEnable( void )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
if( eMBState == STATE_DISABLED )
|
||||
{
|
||||
/* Activate the protocol stack. */
|
||||
pvMBMasterFrameStartCur( );
|
||||
eMBState = STATE_ENABLED;
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EILLSTATE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBMasterDisable( void )
|
||||
{
|
||||
eMBErrorCode eStatus;
|
||||
|
||||
if(( eMBState == STATE_ENABLED ) || ( eMBState == STATE_ESTABLISHED))
|
||||
{
|
||||
pvMBMasterFrameStopCur( );
|
||||
eMBState = STATE_DISABLED;
|
||||
eStatus = MB_ENOERR;
|
||||
}
|
||||
else if( eMBState == STATE_DISABLED )
|
||||
{
|
||||
eStatus = MB_ENOERR;
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EILLSTATE;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
BOOL
|
||||
eMBMasterIsEstablished( void )
|
||||
{
|
||||
if(eMBState == STATE_ESTABLISHED)
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
else
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
eMBErrorCode
|
||||
eMBMasterPoll( void )
|
||||
{
|
||||
static UCHAR *ucMBFrame;
|
||||
static UCHAR ucRcvAddress;
|
||||
static UCHAR ucFunctionCode;
|
||||
static USHORT usLength;
|
||||
static eMBException eException;
|
||||
|
||||
int i , j;
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
eMBMasterEventType eEvent;
|
||||
eMBMasterErrorEventType errorType;
|
||||
|
||||
/* Check if the protocol stack is ready. */
|
||||
if(( eMBState != STATE_ENABLED ) && ( eMBState != STATE_ESTABLISHED))
|
||||
{
|
||||
return MB_EILLSTATE;
|
||||
}
|
||||
|
||||
/* Check if there is a event available. If not return control to caller.
|
||||
* Otherwise we will handle the event. */
|
||||
if( xMBMasterPortEventGet( &eEvent ) == TRUE )
|
||||
{
|
||||
switch ( eEvent )
|
||||
{
|
||||
case EV_MASTER_READY:
|
||||
eMBState = STATE_ESTABLISHED;
|
||||
break;
|
||||
|
||||
case EV_MASTER_FRAME_RECEIVED:
|
||||
eStatus = peMBMasterFrameReceiveCur( &ucRcvAddress, &ucMBFrame, &usLength );
|
||||
/* Check if the frame is for us. If not ,send an error process event. */
|
||||
if ( ( eStatus == MB_ENOERR ) && ( ucRcvAddress == ucMBMasterGetDestAddress() ) )
|
||||
{
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_EXECUTE );
|
||||
}
|
||||
else
|
||||
{
|
||||
vMBMasterSetErrorType(EV_ERROR_RECEIVE_DATA);
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_ERROR_PROCESS );
|
||||
}
|
||||
break;
|
||||
|
||||
case EV_MASTER_EXECUTE:
|
||||
ucFunctionCode = ucMBFrame[MB_PDU_FUNC_OFF];
|
||||
eException = MB_EX_ILLEGAL_FUNCTION;
|
||||
/* If receive frame has exception .The receive function code highest bit is 1.*/
|
||||
if(ucFunctionCode >> 7) {
|
||||
eException = (eMBException)ucMBFrame[MB_PDU_DATA_OFF];
|
||||
}
|
||||
else
|
||||
{
|
||||
for (i = 0; i < MB_FUNC_HANDLERS_MAX; i++)
|
||||
{
|
||||
/* No more function handlers registered. Abort. */
|
||||
if (xMasterFuncHandlers[i].ucFunctionCode == 0) {
|
||||
break;
|
||||
}
|
||||
else if (xMasterFuncHandlers[i].ucFunctionCode == ucFunctionCode) {
|
||||
vMBMasterSetCBRunInMasterMode(TRUE);
|
||||
/* If master request is broadcast,
|
||||
* the master need execute function for all slave.
|
||||
*/
|
||||
if ( xMBMasterRequestIsBroadcast() ) {
|
||||
usLength = usMBMasterGetPDUSndLength();
|
||||
for(j = 1; j <= MB_MASTER_TOTAL_SLAVE_NUM; j++){
|
||||
vMBMasterSetDestAddress(j);
|
||||
eException = xMasterFuncHandlers[i].pxHandler(ucMBFrame, &usLength);
|
||||
}
|
||||
}
|
||||
else {
|
||||
eException = xMasterFuncHandlers[i].pxHandler(ucMBFrame, &usLength);
|
||||
}
|
||||
vMBMasterSetCBRunInMasterMode(FALSE);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
/* If master has exception ,Master will send error process.Otherwise the Master is idle.*/
|
||||
if (eException != MB_EX_NONE) {
|
||||
vMBMasterSetErrorType(EV_ERROR_EXECUTE_FUNCTION);
|
||||
( void ) xMBMasterPortEventPost( EV_MASTER_ERROR_PROCESS );
|
||||
}
|
||||
else {
|
||||
vMBMasterCBRequestScuuess( );
|
||||
vMBMasterRunResRelease( );
|
||||
}
|
||||
break;
|
||||
|
||||
case EV_MASTER_FRAME_SENT:
|
||||
/* Master is busy now. */
|
||||
vMBMasterGetPDUSndBuf( &ucMBFrame );
|
||||
eStatus = peMBMasterFrameSendCur( ucMBMasterGetDestAddress(), ucMBFrame, usMBMasterGetPDUSndLength() );
|
||||
break;
|
||||
|
||||
case EV_MASTER_ERROR_PROCESS:
|
||||
/* Execute specified error process callback function. */
|
||||
errorType = eMBMasterGetErrorType();
|
||||
vMBMasterGetPDUSndBuf( &ucMBFrame );
|
||||
switch (errorType) {
|
||||
case EV_ERROR_RESPOND_TIMEOUT:
|
||||
vMBMasterErrorCBRespondTimeout(ucMBMasterGetDestAddress(),
|
||||
ucMBFrame, usMBMasterGetPDUSndLength());
|
||||
break;
|
||||
case EV_ERROR_RECEIVE_DATA:
|
||||
vMBMasterErrorCBReceiveData(ucMBMasterGetDestAddress(),
|
||||
ucMBFrame, usMBMasterGetPDUSndLength());
|
||||
break;
|
||||
case EV_ERROR_EXECUTE_FUNCTION:
|
||||
vMBMasterErrorCBExecuteFunction(ucMBMasterGetDestAddress(),
|
||||
ucMBFrame, usMBMasterGetPDUSndLength());
|
||||
break;
|
||||
}
|
||||
vMBMasterRunResRelease();
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
}
|
||||
return MB_ENOERR;
|
||||
}
|
||||
|
||||
/* Get whether the Modbus Master is run in master mode.*/
|
||||
BOOL xMBMasterGetCBRunInMasterMode( void )
|
||||
{
|
||||
return xMBRunInMasterMode;
|
||||
}
|
||||
/* Set whether the Modbus Master is run in master mode.*/
|
||||
void vMBMasterSetCBRunInMasterMode( BOOL IsMasterMode )
|
||||
{
|
||||
xMBRunInMasterMode = IsMasterMode;
|
||||
}
|
||||
/* Get Modbus Master send destination address. */
|
||||
UCHAR ucMBMasterGetDestAddress( void )
|
||||
{
|
||||
return ucMBMasterDestAddress;
|
||||
}
|
||||
/* Set Modbus Master send destination address. */
|
||||
void vMBMasterSetDestAddress( UCHAR Address )
|
||||
{
|
||||
ucMBMasterDestAddress = Address;
|
||||
}
|
||||
/* Get Modbus Master current error event type. */
|
||||
eMBMasterErrorEventType eMBMasterGetErrorType( void )
|
||||
{
|
||||
return eMBMasterCurErrorType;
|
||||
}
|
||||
/* Set Modbus Master current error event type. */
|
||||
void vMBMasterSetErrorType( eMBMasterErrorEventType errorType )
|
||||
{
|
||||
eMBMasterCurErrorType = errorType;
|
||||
}
|
||||
|
||||
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,894 @@
|
||||
#include "modbus.h"
|
||||
/*--------------------------------------变量定义-----------------------------------*/
|
||||
emu16 fast_type ecbm_modbus_rtu_crc =0xFFFF; //初始化CRC变量各位为1。
|
||||
emu8 fast_type ecbm_modbus_rtu_status =ECBM_MODBUS_RTU_READY; //状态机使用的变量。
|
||||
emu8 fast_type ecbm_modbus_rtu_id =ECBM_MODBUS_RTU_ID_ADRESS; //本机的设备ID。
|
||||
emu8 fast_type ecbm_modbus_rtu_fun_code =0; //功能码。
|
||||
emu8 fast_type ecbm_modbus_rtu_fun_err_num =0; //异常码。
|
||||
emu16 fast_type ecbm_modbus_rtu_address =0; //数据地址。
|
||||
emu16 fast_type ecbm_modbus_rtu_data_count =0; //数据/个数。
|
||||
emu16 fast_type ecbm_modbus_rtu_crc_buf =0; //CRC缓存。
|
||||
emu16 fast_type ecbm_modbus_rtu_timeout =0; //超时计算。
|
||||
emu16 fast_type ecbm_modbus_rtu_uart_crc =0xFFFF; //CRC计算缓存。
|
||||
emu8 fast_type ecbm_modbus_rtu_cmd_count =0; //指令缓存计数。
|
||||
emu8 fast_type ecbm_modbus_rtu_broadcast_en =0; //广播模式。
|
||||
|
||||
#if ECBM_MODBUS_RTU_BIT_BUF_EN
|
||||
emu8 large_type ecbm_modbus_rtu_bit_buf[ECBM_MODBUS_RTU_BIT_BUF_SIZE]; //比特线圈存放变量。
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
emu16 large_type ecbm_modbus_rtu_reg_buf[ECBM_MODBUS_RTU_REG_BUF_SIZE]; //寄存器存放变量。
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD10_EN
|
||||
emu16 large_type ecbm_modbus_rtu_cmd_buf[ECBM_MODBUS_RTU_BUF_SIZE]; //指令缓存。
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
CRC16计算函数。
|
||||
-------------------------------------------------------*/
|
||||
void ecbm_modbus_rtu_crc16(emu8 buf){
|
||||
emu8 j;
|
||||
ecbm_modbus_rtu_crc^=buf; //当前数据异或CRC低字节，在C51里可以直接处理。
|
||||
for(j=0;j<8;j++){ //计算每个字节的每一位。
|
||||
if(ecbm_modbus_rtu_crc&0x01){ //判断右移前最低位是否为1。
|
||||
ecbm_modbus_rtu_crc=(ecbm_modbus_rtu_crc>>1)^0xA001;//如果为1则右移并异或表达式。
|
||||
}else{
|
||||
ecbm_modbus_rtu_crc>>=1; //否则直接右移一位。
|
||||
}
|
||||
}
|
||||
}
|
||||
/*-------------------------------------------------------
|
||||
检测功能码函数。
|
||||
-------------------------------------------------------*/
|
||||
emu8 ecbm_modbus_rtu_check_fun_num(emu8 fun_num){
|
||||
switch(fun_num){
|
||||
/*-------------------------------------------------
|
||||
0x02|读离散量输入 |物理离散量输入 | |
|
||||
----+-------------+------------------| |
|
||||
0x01|读线圈 | | |
|
||||
----+--------------| | 比特访问 |
|
||||
0x05|写单个线圈 |内部比特或物理线圈 | |
|
||||
----+--------------| | |
|
||||
0x0F|写多个线圈 | | |
|
||||
----+--------------+-----------------+-------------|
|
||||
0x04|读输入寄存器 |输入寄存器 | |
|
||||
----+--------------+-----------------| |
|
||||
0x03|读多个寄存器 | | |
|
||||
----+--------------| | |
|
||||
0x06|写单个寄存器 | | |
|
||||
----+--------------| | |
|
||||
0x10|写多个寄存器 |内部储存器或物理 | 16比特访问 |
|
||||
----+--------------|输出寄存器 | |
|
||||
0x17|读/写多个寄存器| | |
|
||||
----+--------------| | |
|
||||
0x16|屏蔽写寄存器 | | |
|
||||
----+--------------| | |
|
||||
0x18|读FIFO队列 | | |
|
||||
-------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_CMD01_EN
|
||||
case 0x01://读线圈
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD02_EN
|
||||
case 0x02://读离散量输入
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD05_EN
|
||||
case 0x05://写单个线圈
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD04_EN
|
||||
case 0x04://读输入寄存器
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD03_EN
|
||||
case 0x03://读多个寄存器
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD06_EN
|
||||
case 0x06://写单个寄存器
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD10_EN
|
||||
case 0x10://写多个寄存器
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD_ALL_EN
|
||||
{return fun_num;}break;//支持的功能码就返回本身。
|
||||
#endif
|
||||
default:{return 0x80+fun_num;}break;//不支持的功能码就返回0x80+功能码。
|
||||
}
|
||||
}
|
||||
/*-------------------------------------------------------
|
||||
写比特数据函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_BIT_BUF_EN
|
||||
void ecbm_modbus_cmd_write_bit(emu16 addr,emu8 dat){
|
||||
emu8 temp;
|
||||
temp=addr%8;
|
||||
if(dat){
|
||||
ecbm_modbus_rtu_bit_buf[addr/8]|= (0x01<<temp);
|
||||
}else{
|
||||
ecbm_modbus_rtu_bit_buf[addr/8]&=~(0x01<<temp);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
读比特数据函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_BIT_BUF_EN
|
||||
void ecbm_modbus_cmd_read_bit(emu16 addr,emu8 * dat){
|
||||
emu8 temp;
|
||||
temp=addr%8;
|
||||
if((ecbm_modbus_rtu_bit_buf[addr/8])&(0x01<<temp)){
|
||||
*dat=0x01;
|
||||
}else{
|
||||
*dat=0x00;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
写寄存器数据函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
void ecbm_modbus_cmd_write_reg(emu16 addr,emu16 dat){
|
||||
ecbm_modbus_rtu_reg_buf[addr]=dat;
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
读寄存器函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
void ecbm_modbus_cmd_read_reg(emu16 addr,emu16 * dat){
|
||||
*dat=ecbm_modbus_rtu_reg_buf[addr];
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
1号功能码处理函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_CMD01_EN
|
||||
void ecbm_modbus_rtu_cmd_0x01(void){
|
||||
emu8 temp8,t1,c1,i,j,qw;
|
||||
emu16 temp16;
|
||||
ecbm_modbus_rtu_crc= 0xFFFF;
|
||||
if((ecbm_modbus_rtu_data_count>=1)&&(ecbm_modbus_rtu_data_count<=0x07D0)){ //读取的个数要在1个以上，且不能大于2000。
|
||||
if(((emu32)ecbm_modbus_rtu_data_count+(emu32)ecbm_modbus_rtu_address)<=65536UL){ //判断地址+个数有没有超限。
|
||||
#if ECBM_MODBUS_RTU_BIT_BUF_EN
|
||||
if( //遇到以下问题，说明写入肯定会失败。
|
||||
(ecbm_modbus_rtu_address<ECBM_MODBUS_RTU_BIT_START_ADDR)|| //输入地址比起始地址还小的，
|
||||
(ecbm_modbus_rtu_address+ecbm_modbus_rtu_data_count)>(ECBM_MODBUS_RTU_BIT_BUF_SIZE*8+ECBM_MODBUS_RTU_BIT_START_ADDR)//输入的地址+输入的数量超过本机定义的数量。
|
||||
){
|
||||
ecbm_modbus_rtu_fun_err_num=0x04; //记录异常码04。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x81);
|
||||
ecbm_modbus_rtu_crc16(0x04);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x81); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x04); //异常码04。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc)); //发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
#else
|
||||
if(0){ //如果是不用内置数组缓存的话，只要地址在范围内，无论是多少都是被允许的。
|
||||
#endif
|
||||
}else{
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
t1=(emu8)(ecbm_modbus_rtu_data_count/8); //统计要读取的数据能凑够多少个字节。
|
||||
if(ecbm_modbus_rtu_data_count%8)t1++; //剩下的不足8位的数据也要一个字节来传输。
|
||||
#if ECBM_MODBUS_RTU_BIT_BUF_EN
|
||||
temp16=ecbm_modbus_rtu_address-ECBM_MODBUS_RTU_BIT_START_ADDR; //获取数据起始地址。
|
||||
#else
|
||||
temp16=ecbm_modbus_rtu_address; //获取数据起始地址。
|
||||
#endif
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x01);
|
||||
ecbm_modbus_rtu_crc16(t1);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id);//发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x01); //发送功能码回复。
|
||||
ecbm_modbus_rtu_set_data(t1); //发送数据长度。
|
||||
for(i=0;i<t1;i++){ //从起始位置开始组装数据。
|
||||
temp8=0; //清零变量。
|
||||
if(ecbm_modbus_rtu_data_count>=8){ //如果剩余要读的数据多于8个比特。
|
||||
c1=8; //那么本轮循环先读8比特数据。
|
||||
}else{ //否则，
|
||||
c1=(emu8)ecbm_modbus_rtu_data_count; //就有多少读多少。
|
||||
}
|
||||
for(j=0;j<c1;j++){
|
||||
ecbm_modbus_cmd_read_bit(temp16++,&qw);//将地址送到读取函数中，获取对应的比特值。
|
||||
temp8|=(qw<<j); //组装数据。
|
||||
}
|
||||
ecbm_modbus_rtu_crc16(temp8); //计算CRC。
|
||||
ecbm_modbus_rtu_set_data(temp8); //发送组装好的数据。
|
||||
ecbm_modbus_rtu_data_count-=(emu16)c1; //计算剩下要读的数据个数。
|
||||
}
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}else{ //如果地址+个数超过2000。
|
||||
ecbm_modbus_rtu_fun_err_num=0x02; //记录异常码02。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x81);
|
||||
ecbm_modbus_rtu_crc16(0x02);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x81); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x02); //异常码02。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}else{ //如果个数本身就超过2000了。
|
||||
ecbm_modbus_rtu_fun_err_num=0x03; //记录异常码03。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x81);
|
||||
ecbm_modbus_rtu_crc16(0x03);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x81); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x03); //异常码03
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
2号功能码处理函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_CMD02_EN
|
||||
void ecbm_modbus_rtu_cmd_0x02(void){
|
||||
emu8 temp8,t1,c1,i,j,qw;
|
||||
emu16 temp16;
|
||||
ecbm_modbus_rtu_crc= 0xFFFF;
|
||||
if((ecbm_modbus_rtu_data_count>=1)&&(ecbm_modbus_rtu_data_count<=0x07D0)){ //读取的个数要在1个以上，且地址不能大于2000。
|
||||
if(((emu32)ecbm_modbus_rtu_data_count+(emu32)ecbm_modbus_rtu_address)<=65536UL){ //判断地址+个数有没有超限。
|
||||
// if(0){//如果内部没有定义那么多的比特位。
|
||||
// ecbm_modbus_rtu_fun_err_num=0x04; //记录异常码04。
|
||||
// if(ecbm_modbus_rtu_broadcast_en){
|
||||
// ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
// ecbm_modbus_rtu_crc16(0x82);
|
||||
// ecbm_modbus_rtu_crc16(0x04);
|
||||
// ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
// ecbm_modbus_rtu_set_data(0x82); //发送0x80+功能码回复。
|
||||
// ecbm_modbus_rtu_set_data(0x04); //异常码04。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc)); //发送CRC。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
// }
|
||||
// }else{
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
t1=(emu8)(ecbm_modbus_rtu_data_count/8); //统计要读取的数据能凑够多少个字节。
|
||||
if(ecbm_modbus_rtu_data_count%8)t1++; //剩下的不足8位的数据也要一个字节来传输。
|
||||
temp16=ecbm_modbus_rtu_address; //获取数据起始地址。
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x02);
|
||||
ecbm_modbus_rtu_crc16(t1);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id);//发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x02); //发送功能码回复。
|
||||
ecbm_modbus_rtu_set_data(t1); //发送数据长度。
|
||||
for(i=0;i<t1;i++){ //从起始位置开始组装数据。
|
||||
temp8=0; //清零变量。
|
||||
if(ecbm_modbus_rtu_data_count>=8){ //如果剩余要读的数据多于8个比特。
|
||||
c1=8; //那么本轮循环先读8比特数据。
|
||||
}else{ //否则，
|
||||
c1=(emu8)ecbm_modbus_rtu_data_count; //就有多少读多少。
|
||||
}
|
||||
for(j=0;j<c1;j++){
|
||||
ecbm_modbus_cmd_read_io_bit(temp16++,&qw);//将地址送到读取函数中，获取对应的比特值。
|
||||
temp8|=(qw<<j); //组装数据。
|
||||
}
|
||||
ecbm_modbus_rtu_crc16(temp8); //计算CRC。
|
||||
ecbm_modbus_rtu_set_data(temp8); //发送组装好的数据。
|
||||
ecbm_modbus_rtu_data_count-=(emu16)c1; //计算剩下要读的数据个数。
|
||||
}
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
// }
|
||||
}else{ //如果地址+个数超过2000。
|
||||
ecbm_modbus_rtu_fun_err_num=0x02; //记录异常码02。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x82);
|
||||
ecbm_modbus_rtu_crc16(0x02);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x82); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x02); //异常码02。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}else{ //如果个数本身就超过2000了。
|
||||
ecbm_modbus_rtu_fun_err_num=0x03; //记录异常码03。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x82);
|
||||
ecbm_modbus_rtu_crc16(0x03);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x82); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x03); //异常码03
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
3号功能码处理函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_CMD03_EN
|
||||
void ecbm_modbus_rtu_cmd_0x03(void){
|
||||
emu16 temp16,i;
|
||||
ecbm_modbus_rtu_crc=0xffff;
|
||||
if((ecbm_modbus_rtu_data_count>=1)&&(ecbm_modbus_rtu_data_count<=0x007D)){ //读取的个数要在1个以上，且地址不能大于125。
|
||||
if(((emu32)ecbm_modbus_rtu_data_count+(emu32)ecbm_modbus_rtu_address)<65536UL){ //判断地址+个数有没有超限。
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
if( //遇到以下问题，说明写入肯定会失败。
|
||||
(ecbm_modbus_rtu_address<ECBM_MODBUS_RTU_REG_START_ADDR)|| //输入地址比起始地址还小的，
|
||||
(ecbm_modbus_rtu_address+ecbm_modbus_rtu_data_count)>(ECBM_MODBUS_RTU_REG_BUF_SIZE+ECBM_MODBUS_RTU_REG_START_ADDR)//输入的地址+输入的数量超过本机定义的数量。
|
||||
){
|
||||
ecbm_modbus_rtu_fun_err_num=0x04; //记录异常码04。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x83);
|
||||
ecbm_modbus_rtu_crc16(0x04);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id);//发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x83); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x04); //异常码04。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
#else
|
||||
if(0){
|
||||
#endif
|
||||
}else{
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x03);
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_data_count*2);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id);//发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x03); //发送功能码回复。
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_data_count*2);//发送回复字节数。
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
ecbm_modbus_rtu_address-=ECBM_MODBUS_RTU_REG_START_ADDR;
|
||||
#endif
|
||||
for(i=0;i<ecbm_modbus_rtu_data_count;i++){
|
||||
ecbm_modbus_cmd_read_reg(ecbm_modbus_rtu_address+i,&temp16);//从寄存器变量里把数据取出来。
|
||||
ecbm_modbus_rtu_crc16((emu8)(temp16>>8)); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16((emu8)(temp16));
|
||||
ecbm_modbus_rtu_set_data((emu8)(temp16>>8));//发送数据。
|
||||
ecbm_modbus_rtu_set_data((emu8)(temp16));
|
||||
}
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}else{
|
||||
ecbm_modbus_rtu_fun_err_num=0x02; //记录异常码02。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x83);
|
||||
ecbm_modbus_rtu_crc16(0x02);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id);//发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x83); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x02); //异常码02。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}else{ //如果个数本身就超过125了。
|
||||
ecbm_modbus_rtu_fun_err_num=0x03; //记录异常码03。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x83);
|
||||
ecbm_modbus_rtu_crc16(0x03);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x83); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x03); //异常码03。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
4号功能码处理函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_CMD04_EN
|
||||
void ecbm_modbus_rtu_cmd_0x04(void){
|
||||
emu16 temp16,i;
|
||||
ecbm_modbus_rtu_crc=0xffff;
|
||||
if((ecbm_modbus_rtu_data_count>=1)&&(ecbm_modbus_rtu_data_count<=0x007D)){ //读取的个数要在1个以上，且地址不能大于125。
|
||||
if(((emu32)ecbm_modbus_rtu_data_count+(emu32)ecbm_modbus_rtu_address)<65536UL){ //判断地址+个数有没有超限。
|
||||
// if(0){//如果内部没有定义那么多的寄存器。
|
||||
// ecbm_modbus_rtu_fun_err_num=0x04; //记录异常码04。
|
||||
// if(ecbm_modbus_rtu_broadcast_en){
|
||||
// ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
// ecbm_modbus_rtu_crc16(0x84);
|
||||
// ecbm_modbus_rtu_crc16(0x04);
|
||||
// ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id);//发送地址。
|
||||
// ecbm_modbus_rtu_set_data(0x84); //发送0x80+功能码回复。
|
||||
// ecbm_modbus_rtu_set_data(0x04); //异常码04。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
// }
|
||||
// }else{
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x04);
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_data_count*2);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id);//发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x04); //发送功能码回复。
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_data_count*2);//发送回复字节数。
|
||||
for(i=0;i<ecbm_modbus_rtu_data_count;i++){
|
||||
ecbm_modbus_cmd_read_io_reg(ecbm_modbus_rtu_address+i,&temp16);//从寄存器变量里把数据取出来。
|
||||
ecbm_modbus_rtu_crc16((emu8)(temp16>>8)); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16((emu8)(temp16));
|
||||
ecbm_modbus_rtu_set_data((emu8)(temp16>>8));//发送数据。
|
||||
ecbm_modbus_rtu_set_data((emu8)(temp16));
|
||||
}
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
// }
|
||||
}else{
|
||||
ecbm_modbus_rtu_fun_err_num=0x02; //记录异常码02。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x84);
|
||||
ecbm_modbus_rtu_crc16(0x02);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id);//发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x84); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x02); //异常码02。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}else{ //如果个数本身就超过125了。
|
||||
ecbm_modbus_rtu_fun_err_num=0x03; //记录异常码03。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x84);
|
||||
ecbm_modbus_rtu_crc16(0x03);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x84); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x03); //异常码03。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
5号功能码处理函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_CMD05_EN
|
||||
void ecbm_modbus_rtu_cmd_0x05(void){
|
||||
ecbm_modbus_rtu_crc=0xffff;
|
||||
if((ecbm_modbus_rtu_data_count==0x0000)||(ecbm_modbus_rtu_data_count==0xFF00)){//判断输出值是否合法。
|
||||
// if((ecbm_modbus_rtu_address>=0)&&(ecbm_modbus_rtu_address<=65535)){//其实能传进来的地址都符合这个范围，所以在这里优化掉了。
|
||||
#if ECBM_MODBUS_RTU_BIT_BUF_EN
|
||||
if( //遇到以下问题，说明写入肯定会失败。
|
||||
(ecbm_modbus_rtu_address<ECBM_MODBUS_RTU_BIT_START_ADDR)|| //输入地址比起始地址还小的，
|
||||
(ecbm_modbus_rtu_address>=(ECBM_MODBUS_RTU_BIT_BUF_SIZE*8+ECBM_MODBUS_RTU_BIT_START_ADDR))//输入地址比总的设计地址还大的，
|
||||
){
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_fun_err_num=0x04; //记录异常码04。
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x85);
|
||||
ecbm_modbus_rtu_crc16(0x04);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x85); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x04); //异常码04。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc)); //发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
#else
|
||||
if(0){ //如果是不用内置数组缓存的话，只要地址在范围内，无论是多少都是被允许的。
|
||||
#endif
|
||||
}else{
|
||||
#if ECBM_MODBUS_RTU_BIT_BUF_EN
|
||||
ecbm_modbus_cmd_write_bit(ecbm_modbus_rtu_address-ECBM_MODBUS_RTU_BIT_START_ADDR,(emu8)(ecbm_modbus_rtu_data_count>>8));
|
||||
#else
|
||||
ecbm_modbus_cmd_write_bit(ecbm_modbus_rtu_address,(emu8)(ecbm_modbus_rtu_data_count>>8));
|
||||
#endif
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x05);
|
||||
ecbm_modbus_rtu_crc16((emu8)(ecbm_modbus_rtu_address>>8));
|
||||
ecbm_modbus_rtu_crc16((emu8)(ecbm_modbus_rtu_address));
|
||||
ecbm_modbus_rtu_crc16((emu8)(ecbm_modbus_rtu_data_count>>8));
|
||||
ecbm_modbus_rtu_crc16((emu8)(ecbm_modbus_rtu_data_count));
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x05); //发送功能码回复。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_address>>8)); //发送地址回复。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_address));
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_data_count>>8));//发送计数回复。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_data_count));
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc)); //发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
// }else{
|
||||
// ecbm_modbus_rtu_fun_err_num=0x02; //异常码02。
|
||||
// if(ecbm_modbus_rtu_broadcast_en){
|
||||
// ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
// ecbm_modbus_rtu_crc16(0x85);
|
||||
// ecbm_modbus_rtu_crc16(0x02);
|
||||
// ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
// ecbm_modbus_rtu_set_data(0x85); //发送0x80+功能码回复。
|
||||
// ecbm_modbus_rtu_set_data(0x02); //异常码02。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
// }
|
||||
// }
|
||||
}else{ //如果不合法。
|
||||
ecbm_modbus_rtu_fun_err_num=0x03; //记录异常码03。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x85);
|
||||
ecbm_modbus_rtu_crc16(0x03);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x85); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x03); //异常码03
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
6号功能码处理函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_CMD06_EN
|
||||
void ecbm_modbus_rtu_cmd_0x06(void){
|
||||
ecbm_modbus_rtu_crc=0xffff;
|
||||
// if((ecbm_modbus_rtu_data_count>=0x0000)&&(ecbm_modbus_rtu_data_count<=0xFFFF)){//其实能传进来的数据都符合这个范围，所以在这里优化掉了。
|
||||
// if((ecbm_modbus_rtu_address>=0)&&(ecbm_modbus_rtu_address<=65536UL)){//其实能传进来的地址都符合这个范围，所以在这里优化掉了。
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
if( //遇到以下问题，说明写入肯定会失败。
|
||||
(ecbm_modbus_rtu_address<ECBM_MODBUS_RTU_REG_START_ADDR)|| //输入地址比起始地址还小的，
|
||||
(ecbm_modbus_rtu_address)>=(ECBM_MODBUS_RTU_REG_BUF_SIZE+ECBM_MODBUS_RTU_REG_START_ADDR)//输入的地址+输入的数量超过本机定义的数量。
|
||||
){
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_fun_err_num=0x04; //记录异常码04。
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x86);
|
||||
ecbm_modbus_rtu_crc16(0x04);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x86); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x04); //异常码04。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
#else
|
||||
if(0){
|
||||
#endif
|
||||
}else{
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
ecbm_modbus_cmd_write_reg(ecbm_modbus_rtu_address-ECBM_MODBUS_RTU_REG_START_ADDR,ecbm_modbus_rtu_data_count);//把数据写入寄存器。
|
||||
#else
|
||||
ecbm_modbus_cmd_write_reg(ecbm_modbus_rtu_address,ecbm_modbus_rtu_data_count);//把数据写入寄存器。
|
||||
#endif
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x06);
|
||||
ecbm_modbus_rtu_crc16((emu8)(ecbm_modbus_rtu_address>>8));
|
||||
ecbm_modbus_rtu_crc16((emu8)(ecbm_modbus_rtu_address));
|
||||
ecbm_modbus_rtu_crc16((emu8)(ecbm_modbus_rtu_data_count>>8));
|
||||
ecbm_modbus_rtu_crc16((emu8)(ecbm_modbus_rtu_data_count));
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x06); //发送功能码回复。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_address>>8));//发送地址。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_address));
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_data_count>>8));//发送个数。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_data_count));
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
// }else{
|
||||
// ecbm_modbus_rtu_fun_err_num=0x02; //记录异常码02。
|
||||
// if(ecbm_modbus_rtu_broadcast_en){
|
||||
// ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
// ecbm_modbus_rtu_crc16(0x86);
|
||||
// ecbm_modbus_rtu_crc16(0x02);
|
||||
// ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
// ecbm_modbus_rtu_set_data(0x86); //发送0x80+功能码回复。
|
||||
// ecbm_modbus_rtu_set_data(0x02); //异常码02。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
// }
|
||||
// }
|
||||
// }else{ //如果不合法。
|
||||
// ecbm_modbus_rtu_fun_err_num=0x03; //记录异常码03。
|
||||
// if(ecbm_modbus_rtu_broadcast_en){
|
||||
// ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
// ecbm_modbus_rtu_crc16(0x86);
|
||||
// ecbm_modbus_rtu_crc16(0x03);
|
||||
// ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
// ecbm_modbus_rtu_set_data(0x86); //发送0x80+功能码回复。
|
||||
// ecbm_modbus_rtu_set_data(0x03); //异常码03。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
// ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
// }
|
||||
// }
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
16号功能码处理函数。
|
||||
-------------------------------------------------------*/
|
||||
#if ECBM_MODBUS_RTU_CMD10_EN
|
||||
void ecbm_modbus_rtu_cmd_0x10(void){
|
||||
emu8 i;
|
||||
ecbm_modbus_rtu_crc=0xffff;
|
||||
if((ecbm_modbus_rtu_data_count>=0x0001)&&(ecbm_modbus_rtu_data_count<=0x007B)){ //输入的数据个数得符合要求。
|
||||
if(((emu32)ecbm_modbus_rtu_address+(emu32)ecbm_modbus_rtu_data_count)<65536UL){ //地址不能超过65536。
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
if( //遇到以下问题，说明写入肯定会失败。
|
||||
(ecbm_modbus_rtu_address<ECBM_MODBUS_RTU_REG_START_ADDR)|| //输入地址比起始地址还小的，
|
||||
(ecbm_modbus_rtu_address+ecbm_modbus_rtu_data_count)>(ECBM_MODBUS_RTU_REG_BUF_SIZE+ECBM_MODBUS_RTU_REG_START_ADDR)//输入的地址+输入的数量超过本机定义的数量。
|
||||
){
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_fun_err_num=0x04; //记录异常码04。
|
||||
ecbm_modbus_rtu_crc16 (ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16 (0x90);
|
||||
ecbm_modbus_rtu_crc16 (0x04);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x90); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x04); //异常码04。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
#else
|
||||
if(0){
|
||||
#endif
|
||||
}else{//12511
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
ecbm_modbus_rtu_address-=ECBM_MODBUS_RTU_REG_START_ADDR;
|
||||
#endif
|
||||
for(i=0;i<ecbm_modbus_rtu_cmd_count;i++){
|
||||
ecbm_modbus_cmd_write_reg(ecbm_modbus_rtu_address+i,ecbm_modbus_rtu_cmd_buf[i]); //把数据写入寄存器。
|
||||
}
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16 (ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16 (0x10);
|
||||
ecbm_modbus_rtu_crc16 ((emu8)(ecbm_modbus_rtu_address>>8));
|
||||
ecbm_modbus_rtu_crc16 ((emu8)(ecbm_modbus_rtu_address));
|
||||
ecbm_modbus_rtu_crc16 ((emu8)(ecbm_modbus_rtu_data_count>>8));
|
||||
ecbm_modbus_rtu_crc16 ((emu8)(ecbm_modbus_rtu_data_count));
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x10); //发送功能码回复。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_address>>8));//发送地址。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_address));
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_data_count>>8));//发送个数。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_data_count));
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}else{
|
||||
ecbm_modbus_rtu_fun_err_num=0x02; //记录异常码02。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16 (ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16 (0x90);
|
||||
ecbm_modbus_rtu_crc16 (0x02);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x90); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x02); //异常码02。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}else{ //如果不合法。
|
||||
ecbm_modbus_rtu_fun_err_num=0x03; //记录异常码03。
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x90);
|
||||
ecbm_modbus_rtu_crc16(0x03);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x90); //发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(0x03); //异常码03。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc));//发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
/*-------------------------------------------------------
|
||||
modbus接收处理函数。
|
||||
22-07-09：串口收到数据后回调用这里
|
||||
-------------------------------------------------------*/
|
||||
void ecbm_modbus_rtu_receive(void){
|
||||
emu8 dat;//11162
|
||||
ecbm_modbus_rtu_timeout=1;
|
||||
dat=ecbm_modbus_rtu_get_data();//220709:从串口BUFF寄存器中取数据
|
||||
switch(ecbm_modbus_rtu_status){
|
||||
case ECBM_MODBUS_RTU_READY:{ //就绪，等待接收数据。
|
||||
if((dat==ecbm_modbus_rtu_id)||(dat==0)||(dat==0xff)){ //如果收到的ID和本机的匹配。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_FUN_NUM;//切换到功能码识别
|
||||
if((dat==0)||(dat==0xff)){
|
||||
ecbm_modbus_rtu_broadcast_en=0;//写入通信模式，为了简化代码，采用直接赋值。
|
||||
}else{
|
||||
ecbm_modbus_rtu_broadcast_en=1;
|
||||
}
|
||||
ecbm_modbus_rtu_fun_code=0; //清零功能码缓存。
|
||||
ecbm_modbus_rtu_fun_err_num=0; //清零异常码缓存。
|
||||
ecbm_modbus_rtu_uart_crc=0xffff;//重置CRC初值。
|
||||
ecbm_modbus_rtu_crc=ecbm_modbus_rtu_uart_crc;
|
||||
ecbm_modbus_rtu_crc16(dat); //计算CRC。
|
||||
ecbm_modbus_rtu_uart_crc=ecbm_modbus_rtu_crc;
|
||||
}else{ //如果ID不匹配，进入相应的错误界面。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_ID_ERR;
|
||||
}
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_FUN_NUM:{ //正在接收功能码。
|
||||
if(dat>127){ //判断功能码是否合法，
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_FUN_NUM_ERR; //不合法就跳到功能码错误。
|
||||
ecbm_modbus_rtu_fun_err_num=0x01; //异常码01。
|
||||
}else{ //如果合法，
|
||||
ecbm_modbus_rtu_fun_code=ecbm_modbus_rtu_check_fun_num(dat);//判断是不是本机支持的功能码。
|
||||
if(ecbm_modbus_rtu_fun_code>127){
|
||||
ecbm_modbus_rtu_fun_code&=~0x80;
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_FUN_NUM_VOID; //不存在的功能码就跳到功能码空。
|
||||
ecbm_modbus_rtu_fun_err_num=0x01; //异常码01。
|
||||
}else{
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_ADDRH; //如果是存在的功能码，就考虑开始接收数据了。
|
||||
ecbm_modbus_rtu_crc=ecbm_modbus_rtu_uart_crc;
|
||||
ecbm_modbus_rtu_crc16(dat);
|
||||
ecbm_modbus_rtu_uart_crc=ecbm_modbus_rtu_crc;
|
||||
}
|
||||
}
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_ADDRH:{ //接收地址的高8位。
|
||||
ecbm_modbus_rtu_address=(emu16)dat<<8; //组装地址。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_ADDRL; //到下一步。
|
||||
ecbm_modbus_rtu_crc=ecbm_modbus_rtu_uart_crc; //计算CRC。
|
||||
ecbm_modbus_rtu_crc16(dat);
|
||||
ecbm_modbus_rtu_uart_crc=ecbm_modbus_rtu_crc;
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_ADDRL:{ //接收地址的低8位。
|
||||
ecbm_modbus_rtu_address+=(emu16)dat; //组装地址。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_DATA_COUNTH;//到下一步。
|
||||
ecbm_modbus_rtu_crc=ecbm_modbus_rtu_uart_crc; //计算CRC。
|
||||
ecbm_modbus_rtu_crc16(dat);
|
||||
ecbm_modbus_rtu_uart_crc=ecbm_modbus_rtu_crc;
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_DATA_COUNTH:{ //接收数据/个数的高8位。
|
||||
ecbm_modbus_rtu_data_count=(emu16)dat<<8; //组装数据/个数。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_DATA_COUNTL;//到下一步。
|
||||
ecbm_modbus_rtu_crc=ecbm_modbus_rtu_uart_crc; //计算CRC。
|
||||
ecbm_modbus_rtu_crc16(dat);
|
||||
ecbm_modbus_rtu_uart_crc=ecbm_modbus_rtu_crc;
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_DATA_COUNTL:{ //接收数据/个数的低8位。
|
||||
ecbm_modbus_rtu_data_count+=(emu16)dat; //组装数据/个数。
|
||||
if(ecbm_modbus_rtu_fun_code==0x10){
|
||||
ecbm_modbus_rtu_cmd_count=0;
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_BYTE_COUNT;//到字节读取。
|
||||
}else{
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_CRCL;//到CRC。
|
||||
}
|
||||
ecbm_modbus_rtu_crc=ecbm_modbus_rtu_uart_crc; //计算CRC。
|
||||
ecbm_modbus_rtu_crc16(dat);
|
||||
ecbm_modbus_rtu_uart_crc=ecbm_modbus_rtu_crc;
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_CRCL:{ //接收CRC的低8位。
|
||||
ecbm_modbus_rtu_crc_buf=(emu16)dat; //组合CRC。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_CRCH; //到下一步。
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_CRCH:{ //接收CRC的高8位。
|
||||
ecbm_modbus_rtu_crc_buf+=(emu16)dat<<8; //组合CRC。
|
||||
if(ecbm_modbus_rtu_crc_buf==ecbm_modbus_rtu_uart_crc){//判断接收的CRC和计算的CRC是否相等。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_DO; //相等的话就到执行步骤。
|
||||
}else{ //否则，
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_CRC_ERR;//就跳到CRC错误界面。
|
||||
}
|
||||
}break;
|
||||
#if ECBM_MODBUS_RTU_CMD10_EN
|
||||
case ECBM_MODBUS_RTU_BYTE_COUNT:{ //接收数据字节数。
|
||||
ecbm_modbus_rtu_cmd_count=dat;
|
||||
if((ecbm_modbus_rtu_cmd_count==0)||(ecbm_modbus_rtu_cmd_count!=(emu8)(ecbm_modbus_rtu_data_count*2))){//如果数量不合。
|
||||
ecbm_modbus_rtu_fun_err_num=0x03; //字节数对不上，异常码03。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_BYTE_ERR;//调到对应的处理界面。
|
||||
}else{
|
||||
ecbm_modbus_rtu_cmd_count=0; //复用该变量。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_DATAH;//调到对应的处理界面。
|
||||
ecbm_modbus_rtu_crc=ecbm_modbus_rtu_uart_crc; //计算CRC。
|
||||
ecbm_modbus_rtu_crc16(dat);
|
||||
ecbm_modbus_rtu_uart_crc=ecbm_modbus_rtu_crc;
|
||||
}
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_DATAH:{
|
||||
ecbm_modbus_rtu_cmd_buf[ecbm_modbus_rtu_cmd_count]=((emu16)dat)<<8;
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_DATAL; //到低8位。
|
||||
ecbm_modbus_rtu_crc=ecbm_modbus_rtu_uart_crc; //计算CRC。
|
||||
ecbm_modbus_rtu_crc16(dat);
|
||||
ecbm_modbus_rtu_uart_crc=ecbm_modbus_rtu_crc;
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_DATAL:{
|
||||
ecbm_modbus_rtu_cmd_buf[ecbm_modbus_rtu_cmd_count]+=((emu16)dat);
|
||||
ecbm_modbus_rtu_cmd_count++;
|
||||
if(ecbm_modbus_rtu_cmd_count==(emu8)ecbm_modbus_rtu_data_count){
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_CRCL;//到CRC。
|
||||
}else{
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_DATAH;//到下一个数据的高8位。
|
||||
}
|
||||
ecbm_modbus_rtu_crc=ecbm_modbus_rtu_uart_crc; //计算CRC。
|
||||
ecbm_modbus_rtu_crc16(dat);
|
||||
ecbm_modbus_rtu_uart_crc=ecbm_modbus_rtu_crc;
|
||||
}break;
|
||||
#endif
|
||||
}
|
||||
}
|
||||
/*-------------------------------------------------------
|
||||
modbus主循环处理函数。
|
||||
-------------------------------------------------------*/
|
||||
void ecbm_modbus_rtu_run(void){
|
||||
switch(ecbm_modbus_rtu_status){
|
||||
case ECBM_MODBUS_RTU_FUN_NUM_VOID:// debug("不支持该功能码\r\n");
|
||||
case ECBM_MODBUS_RTU_FUN_NUM_ERR:{// debug("功能码错误\r\n");
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc=0xFFFF;
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x80+ecbm_modbus_rtu_fun_code);
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_fun_err_num);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x80+ecbm_modbus_rtu_fun_code);//发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_fun_err_num); //异常码。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc)); //发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_WAIT;
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_ID_ERR:{//ID错误。
|
||||
//这里可以做些处理，但默认留空。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_WAIT;
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_CRC_ERR:{//CRC错误。
|
||||
//这里可以做些处理，比如发送个重发信号，但默认留空。
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_WAIT;
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_DO:{//动作执行。
|
||||
#if ECBM_MODBUS_RTU_CMD_ALL_EN
|
||||
#if ECBM_MODBUS_IO_EN
|
||||
ecbm_modbus_rtu_set_io(ECBM_MODBUS_WRITE);//220709:控制使能脚写
|
||||
#endif
|
||||
switch(ecbm_modbus_rtu_fun_code){//根据功能码来选择对应的动作。
|
||||
#if ECBM_MODBUS_RTU_CMD01_EN
|
||||
case 0x01:ecbm_modbus_rtu_cmd_0x01();break;
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD02_EN
|
||||
case 0x02:ecbm_modbus_rtu_cmd_0x02();break;
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD03_EN
|
||||
case 0x03:ecbm_modbus_rtu_cmd_0x03();break;
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD04_EN
|
||||
case 0x04:ecbm_modbus_rtu_cmd_0x04();break;
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD05_EN
|
||||
case 0x05:ecbm_modbus_rtu_cmd_0x05();break;
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD06_EN
|
||||
case 0x06:ecbm_modbus_rtu_cmd_0x06();break;
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD10_EN
|
||||
case 0x10:ecbm_modbus_rtu_cmd_0x10();break;
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
#if ECBM_MODBUS_IO_EN
|
||||
ecbm_modbus_rtu_set_io(ECBM_MODBUS_READ);//220709:控制使能脚
|
||||
#endif
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_READY;
|
||||
}break;
|
||||
case ECBM_MODBUS_RTU_BYTE_ERR:{
|
||||
if(ecbm_modbus_rtu_broadcast_en){
|
||||
ecbm_modbus_rtu_crc=0xFFFF;
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_id); //计算CRC，下同。
|
||||
ecbm_modbus_rtu_crc16(0x80+ecbm_modbus_rtu_fun_code);
|
||||
ecbm_modbus_rtu_crc16(ecbm_modbus_rtu_fun_err_num);
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_id); //发送地址。
|
||||
ecbm_modbus_rtu_set_data(0x80+ecbm_modbus_rtu_fun_code);//发送0x80+功能码回复。
|
||||
ecbm_modbus_rtu_set_data(ecbm_modbus_rtu_fun_err_num); //异常码。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc)); //发送CRC。
|
||||
ecbm_modbus_rtu_set_data((emu8)(ecbm_modbus_rtu_crc>>8));
|
||||
}
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_WAIT;
|
||||
}break;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,443 @@
|
||||
#ifndef _ECBM_MODBUS_H_
|
||||
#define _ECBM_MODBUS_H_
|
||||
/*-------------------------------------------------------------------------------------
|
||||
The MIT License (MIT)
|
||||
|
||||
Copyright (c) 2023 奈特
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of
|
||||
this software and associated documentation files (the "Software"), to deal in
|
||||
the Software without restriction, including without limitation the rights to
|
||||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
||||
the Software, and to permit persons to whom the Software is furnished to do so,
|
||||
subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
||||
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
||||
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
||||
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
|
||||
免责说明：
|
||||
本软件库以MIT开源协议免费向大众提供。作者只保证原始版本是由作者在维护修BUG，
|
||||
其他通过网络传播的版本也许被二次修改过，由此出现的BUG与作者无关。而当您使用原始
|
||||
版本出现BUG时，请联系作者解决。
|
||||
**************************
|
||||
* 联系方式：进群778916610 *
|
||||
* 若1群满人：进群927297508*
|
||||
**************************
|
||||
------------------------------------------------------------------------------------*/
|
||||
//-----------------以下是图形设置界面，可在Configuration Wizard界面设置-----------------
|
||||
//<<< Use Configuration Wizard in Context Menu >>>
|
||||
//<q>使能IO控制读写功能？
|
||||
//<i>使能后需要自己定义实现接口函数，函数内部放控制IO的语句，IO电平由形参传入
|
||||
//<i>当modbus需要控制IO的时候会调用这个接口函数
|
||||
//<i>void ecbm_modbus_rtu_set_io(emu8 dat)
|
||||
//<i>{
|
||||
//<i> gpio_out_fast(GPIO_P5, GPIO_PIN_5, dat);
|
||||
//<i> //gpio_out(RS485_ENA,dat);
|
||||
//<i>}
|
||||
#define ECBM_MODBUS_IO_EN 0
|
||||
//<h>MODBUS_RTU
|
||||
#define ECBM_MODBUS_VERSION "V1.0.4"
|
||||
//<i>这是modbus协议的RTU模式。
|
||||
//<o>本机地址/ID
|
||||
//<1-247>
|
||||
//<i>8位的地址，可使用的范围是1~247，0作为广播地址。
|
||||
#define ECBM_MODBUS_RTU_ID_ADRESS 1
|
||||
//<o>超时时间
|
||||
//<i>单位为定时器中断次数。比如500就是定时器中断500次，若每次中断的间隔是1ms，那么就是500mS超时。
|
||||
#define ECBM_MODBUS_RTU_TIME_MAX 5
|
||||
//<h>线圈读写功能设置
|
||||
//<e>线圈缓存
|
||||
//<i>勾选后会定义一个数组作为缓存，线圈指令操作都会指向这个数组，适合新项目的开始。可以使用读写函数获取数组内部的值。
|
||||
//<i>不勾选的话，可以通过移植两个读写函数将读写线圈功能映射到任意的地方。适合为老项目增加modbus功能。
|
||||
#define ECBM_MODBUS_RTU_BIT_BUF_EN 0
|
||||
//<o>线圈起始地址
|
||||
//<i>有时候为了适配别人的协议，地址不一定是从0开始的，在这里可以设置一个偏移。
|
||||
#define ECBM_MODBUS_RTU_BIT_START_ADDR 0
|
||||
//<o>线圈缓存总数
|
||||
//<i>单位是字节（8位），请根据需求填写。比如设备要有10个线圈，因为至少需要两个字节才能存完10个，那么就应该填2。
|
||||
#define ECBM_MODBUS_RTU_BIT_BUF_SIZE 3
|
||||
//</e>
|
||||
//<h>线圈指令使能
|
||||
//<i>如果和线圈有关的指令都没有被使能，那么线圈读写相关的函数和缓存都将被优化掉。
|
||||
//<q>[01]读线圈
|
||||
#define ECBM_MODBUS_RTU_CMD01_EN 1
|
||||
//<q>[05]写单个线圈
|
||||
#define ECBM_MODBUS_RTU_CMD05_EN 1
|
||||
//</h>
|
||||
//</h>
|
||||
//<h>寄存器读写功能设置
|
||||
//<e>寄存器缓存
|
||||
#define ECBM_MODBUS_RTU_REG_BUF_EN 0
|
||||
//<o>寄存器起始地址
|
||||
//<i>有时候为了适配别人的协议，地址不一定是从0开始的，在这里可以设置一个偏移。
|
||||
#define ECBM_MODBUS_RTU_REG_START_ADDR 0
|
||||
//<o>寄存器缓存总数
|
||||
//<i>单位是字（16位），请根据需求填写。
|
||||
#define ECBM_MODBUS_RTU_REG_BUF_SIZE 40
|
||||
//</e>
|
||||
//<h>寄存器指令使能
|
||||
//<i>如果和寄存器有关的指令都没有被使能，那么线圈读写相关的函数和缓存都将被优化掉。
|
||||
//<q>[03]读寄存器
|
||||
#define ECBM_MODBUS_RTU_CMD03_EN 1
|
||||
//<q>[06]写单个寄存器
|
||||
#define ECBM_MODBUS_RTU_CMD06_EN 1
|
||||
//<e>[10]写多个寄存器
|
||||
#define ECBM_MODBUS_RTU_CMD10_EN 1
|
||||
//<o>寄存器写入缓存总数
|
||||
//<i>单位是字节（8位），由于CRC的存在，在多字节写入的时候，不能立刻把数据存入，需要用一个缓存存起来，待CRC验证完毕之后才能一起写入。
|
||||
#define ECBM_MODBUS_RTU_BUF_SIZE 10
|
||||
//</e>
|
||||
//</h>
|
||||
//</h>
|
||||
//<h>IO系统指令使能
|
||||
//<i>如果和IO系统有关的指令都没有被使能，那么IO相关的函数和缓存都将被优化掉。
|
||||
//<q>[02]读离散量输入
|
||||
#define ECBM_MODBUS_RTU_CMD02_EN 1
|
||||
//<q>[04]读输入寄存器
|
||||
#define ECBM_MODBUS_RTU_CMD04_EN 1
|
||||
//</h>
|
||||
#define ECBM_MODBUS_RTU_CMD_BIT_EN (ECBM_MODBUS_RTU_CMD01_EN+ECBM_MODBUS_RTU_CMD05_EN)
|
||||
#define ECBM_MODBUS_RTU_CMD_REG_EN (ECBM_MODBUS_RTU_CMD03_EN+ECBM_MODBUS_RTU_CMD06_EN+ECBM_MODBUS_RTU_CMD10_EN)
|
||||
#define ECBM_MODBUS_RTU_CMD_IO_EN (ECBM_MODBUS_RTU_CMD02_EN+ECBM_MODBUS_RTU_CMD04_EN)
|
||||
#define ECBM_MODBUS_RTU_CMD_ALL_EN (ECBM_MODBUS_RTU_CMD_BIT_EN+ECBM_MODBUS_RTU_CMD_REG_EN+ECBM_MODBUS_RTU_CMD_IO_EN)
|
||||
//<<< end of configuration section >>>
|
||||
//-----------------以上是图形设置界面，可在Configuration Wizard界面设置-----------------
|
||||
/*-----------------------------------数据类型宏定义--------------------------------*/
|
||||
#define fast_type idata //快速内存区。
|
||||
#define large_type xdata //大容量内存区。
|
||||
typedef unsigned char emu8; //8位无符号型变量。
|
||||
typedef unsigned short emu16; //16位无符号型变量。
|
||||
typedef unsigned long emu32; //32位无符号型变量。
|
||||
/*------------------------------------状态机宏定义---------------------------------*/
|
||||
#define ECBM_MODBUS_RTU_READY 0 //就绪态，此时可以接受一帧modbus数据。
|
||||
#define ECBM_MODBUS_RTU_WAIT 1 //等待态，当发生错误之后，在此等待当前数据帧结束。
|
||||
#define ECBM_MODBUS_RTU_ID_ERR 2 //ID错误，当接收到的ID不是本机也不是广播地址时会到这里。
|
||||
#define ECBM_MODBUS_RTU_FUN_NUM 3 //读取功能码，在此读取功能码。
|
||||
#define ECBM_MODBUS_RTU_FUN_NUM_ERR 4 //功能码错误，功能码原则上小于128，超过就会到这里。
|
||||
#define ECBM_MODBUS_RTU_FUN_NUM_VOID 5 //功能码不存在，主要原因是本机不支持该功能码。
|
||||
#define ECBM_MODBUS_RTU_ADDRH 6 //读取地址高8位。
|
||||
#define ECBM_MODBUS_RTU_ADDRL 7 //读取地址低8位。
|
||||
#define ECBM_MODBUS_RTU_DATA_COUNTH 8 //读取数据或者个数的高8位。
|
||||
#define ECBM_MODBUS_RTU_DATA_COUNTL 9 //读取数据或者个数的低8位。
|
||||
#define ECBM_MODBUS_RTU_COUNT_ERR 10 //读取个数错误。
|
||||
#define ECBM_MODBUS_RTU_CRCH 11 //读取CRC的高8位。
|
||||
#define ECBM_MODBUS_RTU_CRCL 12 //读取CRC的低8位。
|
||||
#define ECBM_MODBUS_RTU_CRC_ERR 13 //CRC错误，当接收到的数据的CRC和传输的CRC不一致时会报错。
|
||||
#define ECBM_MODBUS_RTU_DO 14 //处理态，在该状态下处理数据。
|
||||
#define ECBM_MODBUS_RTU_DATAH 15 //读取地址高8位。
|
||||
#define ECBM_MODBUS_RTU_DATAL 16 //读取地址低8位。
|
||||
#define ECBM_MODBUS_RTU_BYTE_COUNT 17 //读取字节数量。
|
||||
#define ECBM_MODBUS_RTU_BYTE_ERR 18 //读取字节数量对应不上。
|
||||
/*-------------------------------------返回值定义----------------------------------*/
|
||||
#define ECBM_MODBUS_RTU_OK 0 //正常。
|
||||
#define ECBM_MODBUS_RTU_BIT_ADDR_ERR 1 //比特位地址错误。
|
||||
#define ECBM_MODBUS_RTU_REG_ADDR_ERR 2 //寄存器地址错误。
|
||||
#define ECBM_MODBUS_RTU_IO_ADDR_ERR 3 //IO地址错误。
|
||||
/*-------------------------------220709增加使能脚控制功能----------------------------*/
|
||||
#define ECBM_MODBUS_READ 0 //读使能
|
||||
#define ECBM_MODBUS_WRITE 1 //写使能
|
||||
/*--------------------------------------变量定义-----------------------------------*/
|
||||
extern emu16 fast_type ecbm_modbus_rtu_crc; //初始化CRC变量各位为1。
|
||||
extern emu8 fast_type ecbm_modbus_rtu_status; //状态机使用的变量。
|
||||
extern emu8 fast_type ecbm_modbus_rtu_id; //本机的设备ID。
|
||||
extern emu8 fast_type ecbm_modbus_rtu_fun_code; //功能码。
|
||||
extern emu8 fast_type ecbm_modbus_rtu_fun_err_num; //异常码。
|
||||
extern emu16 fast_type ecbm_modbus_rtu_address; //数据地址。
|
||||
extern emu16 fast_type ecbm_modbus_rtu_data_count; //数据/个数。
|
||||
extern emu16 fast_type ecbm_modbus_rtu_crc_buf; //CRC缓存。
|
||||
extern emu16 fast_type ecbm_modbus_rtu_timeout; //超时计算。
|
||||
extern emu16 fast_type ecbm_modbus_rtu_uart_crc; //CRC计算缓存。
|
||||
extern emu8 fast_type ecbm_modbus_rtu_cmd_count; //指令缓存计数。
|
||||
extern emu8 fast_type ecbm_modbus_rtu_broadcast_en; //广播模式。
|
||||
|
||||
#if ECBM_MODBUS_RTU_BIT_BUF_EN
|
||||
extern emu8 large_type ecbm_modbus_rtu_bit_buf[ECBM_MODBUS_RTU_BIT_BUF_SIZE];//比特线圈存放变量。
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_REG_BUF_EN
|
||||
extern emu16 large_type ecbm_modbus_rtu_reg_buf[ECBM_MODBUS_RTU_REG_BUF_SIZE];//寄存器存放变量。
|
||||
#endif
|
||||
#if ECBM_MODBUS_RTU_CMD10_EN
|
||||
extern emu16 large_type ecbm_modbus_rtu_cmd_buf[ECBM_MODBUS_RTU_BUF_SIZE];//指令缓存。
|
||||
#endif
|
||||
/*--------------------------------------函数定义-----------------------------------*/
|
||||
/**
|
||||
* @brief 设置485芯片的读写IO脚,220709
|
||||
*
|
||||
* @param dat 电平状态
|
||||
*/
|
||||
extern void ecbm_modbus_rtu_set_io(emu8 dat);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_set_data
|
||||
描 述：发送数据函数。需要用户移植。
|
||||
输 入：
|
||||
dat 要发送的数据
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_rtu_set_data(emu8 dat);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_get_data
|
||||
描 述：数据接收函数。需要用户移植。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：接收到的数据。
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
-------------------------------------------------------*/
|
||||
extern emu8 ecbm_modbus_rtu_get_data(void);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ECBM_MODBUS_RTU_TIMEOUT_RUN
|
||||
描 述：走时宏定义，为了加快运行速度，所以做成了宏定义。需要用户移植。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-10
|
||||
修改记录：
|
||||
-------------------------------------------------------*/
|
||||
#define ECBM_MODBUS_RTU_TIMEOUT_RUN() \
|
||||
do{\
|
||||
if(ecbm_modbus_rtu_timeout>0)/*不为0的时候才增加。*/\
|
||||
ecbm_modbus_rtu_timeout++;/*时间往上加。*/\
|
||||
if(ecbm_modbus_rtu_timeout>ECBM_MODBUS_RTU_TIME_MAX){/*超时的时候，*/\
|
||||
ecbm_modbus_rtu_status=ECBM_MODBUS_RTU_READY;/*回到就绪态。*/\
|
||||
ecbm_modbus_rtu_timeout=0;/*同时关闭时间累积。*/\
|
||||
}\
|
||||
}while(0)
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_crc16
|
||||
描 述：CRC16计算函数。
|
||||
输 入：
|
||||
buf 需要计算CRC的数据
|
||||
输 出：
|
||||
ecbm_modbus_rtu_crc 计算的结果
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-10
|
||||
修改记录：
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_rtu_crc16(emu8 buf);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_check_fun_num
|
||||
描 述：检测功能码函数。
|
||||
输 入：
|
||||
fun_num 功能码
|
||||
输 出：无
|
||||
返回值：功能码存在返回本身，不存在返回0x80+功能码。
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
-------------------------------------------------------*/
|
||||
extern emu8 ecbm_modbus_rtu_check_fun_num(emu8 fun_num);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_cmd_read_io_bit
|
||||
描 述：读输入离散量函数。
|
||||
输 入：
|
||||
addr 离散量地址
|
||||
输 出：
|
||||
dat 比特值
|
||||
返回值：读取结果
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-15
|
||||
修改记录：
|
||||
-------------------------------------------------------*/
|
||||
extern emu8 ecbm_modbus_cmd_read_io_bit(emu16 addr,emu8 * dat);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_cmd_read_io_reg
|
||||
描 述：读输入寄存器函数。
|
||||
输 入：
|
||||
addr 寄存器地址
|
||||
输 出：
|
||||
dat 寄存器值
|
||||
返回值：读取结果
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-15
|
||||
修改记录：
|
||||
-------------------------------------------------------*/
|
||||
extern emu8 ecbm_modbus_cmd_read_io_reg(emu16 addr,emu16 * dat);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_cmd_write_bit
|
||||
描 述：写比特数据函数。
|
||||
输 入：
|
||||
addr 比特位地址
|
||||
dat 比特值
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-16：取消返回值，优化运行速度。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_cmd_write_bit(emu16 addr,emu8 dat);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_cmd_read_bit
|
||||
描 述：读比特数据函数。
|
||||
输 入：
|
||||
addr 比特位地址
|
||||
输 出：
|
||||
dat 比特值
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-16：取消返回值，优化运行速度。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_cmd_read_bit(emu16 addr,emu8 * dat);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_cmd_write_reg
|
||||
描 述：写寄存器数据函数。
|
||||
输 入：
|
||||
addr 寄存器地址
|
||||
dat 寄存器值
|
||||
输 出：无
|
||||
返回值：读取结果
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-16：取消返回值，优化运行速度。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_cmd_write_reg(emu16 addr,emu16 dat);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_cmd_read_reg
|
||||
描 述：读寄存器函数。
|
||||
输 入：
|
||||
addr 寄存器地址
|
||||
输 出：
|
||||
dat 寄存器值
|
||||
返回值：读取结果
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-16：取消返回值，优化运行速度。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_cmd_read_reg(emu16 addr,emu16 * dat);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_cmd_0x01
|
||||
描 述：1号功能码处理函数。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-09：新增CRC校验。
|
||||
2021-03-15：修改了异常码02的触发条件。
|
||||
2021-03-16：新增异常码04的触发条件。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_rtu_cmd_0x01(void);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_cmd_0x02
|
||||
描 述：2号功能码处理函数。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-15
|
||||
修改记录：
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_rtu_cmd_0x02(void);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_cmd_0x03
|
||||
描 述：3号功能码处理函数。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-09：新增CRC校验。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_rtu_cmd_0x03(void);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_cmd_0x05
|
||||
描 述：5号功能码处理函数。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-09：新增CRC校验。
|
||||
2021-03-16：新增异常码04的触发条件，优化了部分执行代码。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_rtu_cmd_0x05(void);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_cmd_0x06
|
||||
描 述：6号功能码处理函数。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-09：新增CRC校验。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_rtu_cmd_0x06(void);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_cmd_0x10
|
||||
描 述：16号功能码处理函数。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-12
|
||||
修改记录：
|
||||
-------------------------------------------------------*/
|
||||
void ecbm_modbus_rtu_cmd_0x10(void);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_receive
|
||||
描 述：modbus接收处理函数。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-09：新增CRC校验。
|
||||
2021-03-12：新增0x10指令相关处理,新增0xff广播地址。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_rtu_receive(void);
|
||||
/*-------------------------------------------------------
|
||||
函数名：ecbm_modbus_rtu_run
|
||||
描 述：modbus主循环处理函数。
|
||||
输 入：无
|
||||
输 出：无
|
||||
返回值：无
|
||||
创建者：奈特
|
||||
调用例程：无
|
||||
创建日期：2021-03-05
|
||||
修改记录：
|
||||
2021-03-09：新增CRC校验相关代码。
|
||||
2021-03-12：新增0x10指令相关处理。
|
||||
-------------------------------------------------------*/
|
||||
extern void ecbm_modbus_rtu_run(void);
|
||||
#endif
|
||||
@@ -0,0 +1,98 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbcrc.c,v 1.7 2007/02/18 23:50:27 wolti Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
static const UCHAR aucCRCHi[] = {
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
||||
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
|
||||
0x00, 0xC1, 0x81, 0x40
|
||||
};
|
||||
|
||||
static const UCHAR aucCRCLo[] = {
|
||||
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7,
|
||||
0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E,
|
||||
0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9,
|
||||
0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC,
|
||||
0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
|
||||
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
|
||||
0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D,
|
||||
0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38,
|
||||
0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF,
|
||||
0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
|
||||
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1,
|
||||
0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4,
|
||||
0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB,
|
||||
0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA,
|
||||
0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
|
||||
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
|
||||
0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97,
|
||||
0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E,
|
||||
0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89,
|
||||
0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
|
||||
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83,
|
||||
0x41, 0x81, 0x80, 0x40
|
||||
};
|
||||
|
||||
USHORT
|
||||
usMBCRC16( UCHAR * pucFrame, USHORT usLen )
|
||||
{
|
||||
UCHAR ucCRCHi = 0xFF;
|
||||
UCHAR ucCRCLo = 0xFF;
|
||||
int iIndex;
|
||||
|
||||
while( usLen-- )
|
||||
{
|
||||
iIndex = ucCRCLo ^ *( pucFrame++ );
|
||||
ucCRCLo = ( UCHAR )( ucCRCHi ^ aucCRCHi[iIndex] );
|
||||
ucCRCHi = aucCRCLo[iIndex];
|
||||
}
|
||||
return ( USHORT )( ucCRCHi << 8 | ucCRCLo );
|
||||
}
|
||||
@@ -0,0 +1,36 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbcrc.h,v 1.5 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
#ifndef _MB_CRC_H
|
||||
#define _MB_CRC_H
|
||||
|
||||
USHORT usMBCRC16( UCHAR * pucFrame, USHORT usLen );
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,354 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbrtu.c,v 1.18 2007/09/12 10:15:56 wolti Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mbrtu.h"
|
||||
#include "mbframe.h"
|
||||
|
||||
#include "mbcrc.h"
|
||||
#include "mbport.h"
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_SER_PDU_SIZE_MIN 4 /*!< Minimum size of a Modbus RTU frame. */
|
||||
#define MB_SER_PDU_SIZE_MAX 256 /*!< Maximum size of a Modbus RTU frame. */
|
||||
#define MB_SER_PDU_SIZE_CRC 2 /*!< Size of CRC field in PDU. */
|
||||
#define MB_SER_PDU_ADDR_OFF 0 /*!< Offset of slave address in Ser-PDU. */
|
||||
#define MB_SER_PDU_PDU_OFF 1 /*!< Offset of Modbus-PDU in Ser-PDU. */
|
||||
|
||||
/* ----------------------- Type definitions ---------------------------------*/
|
||||
typedef enum
|
||||
{
|
||||
STATE_RX_INIT, /*!< Receiver is in initial state. */
|
||||
STATE_RX_IDLE, /*!< Receiver is in idle state. */
|
||||
STATE_RX_RCV, /*!< Frame is beeing received. */
|
||||
STATE_RX_ERROR /*!< If the frame is invalid. */
|
||||
} eMBRcvState;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
STATE_TX_IDLE, /*!< Transmitter is in idle state. */
|
||||
STATE_TX_XMIT /*!< Transmitter is in transfer state. */
|
||||
} eMBSndState;
|
||||
|
||||
/* ----------------------- Static variables ---------------------------------*/
|
||||
static volatile eMBSndState eSndState;
|
||||
static volatile eMBRcvState eRcvState;
|
||||
|
||||
volatile UCHAR ucRTUBuf[MB_SER_PDU_SIZE_MAX];
|
||||
|
||||
static volatile UCHAR *pucSndBufferCur;
|
||||
static volatile USHORT usSndBufferCount;
|
||||
|
||||
static volatile USHORT usRcvBufferPos;
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
eMBErrorCode
|
||||
eMBRTUInit( UCHAR ucSlaveAddress, UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
ULONG usTimerT35_50us;
|
||||
|
||||
( void )ucSlaveAddress;
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
|
||||
/* Modbus RTU uses 8 Databits. */
|
||||
if( xMBPortSerialInit( ucPort, ulBaudRate, 8, eParity ) != TRUE )
|
||||
{
|
||||
eStatus = MB_EPORTERR;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* If baudrate > 19200 then we should use the fixed timer values
|
||||
* t35 = 1750us. Otherwise t35 must be 3.5 times the character time.
|
||||
*/
|
||||
if( ulBaudRate > 19200 )
|
||||
{
|
||||
usTimerT35_50us = 35; /* 1800us. */
|
||||
}
|
||||
else
|
||||
{
|
||||
/* The timer reload value for a character is given by:
|
||||
*
|
||||
* ChTimeValue = Ticks_per_1s / ( Baudrate / 11 )
|
||||
* = 11 * Ticks_per_1s / Baudrate
|
||||
* = 220000 / Baudrate
|
||||
* The reload for t3.5 is 1.5 times this value and similary
|
||||
* for t3.5.
|
||||
*/
|
||||
usTimerT35_50us = ( 7UL * 220000UL ) / ( 2UL * ulBaudRate );
|
||||
}
|
||||
if( xMBPortTimersInit( ( USHORT ) usTimerT35_50us ) != TRUE )
|
||||
{
|
||||
eStatus = MB_EPORTERR;
|
||||
}
|
||||
}
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
void
|
||||
eMBRTUStart( void )
|
||||
{
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
/* Initially the receiver is in the state STATE_RX_INIT. we start
|
||||
* the timer and if no character is received within t3.5 we change
|
||||
* to STATE_RX_IDLE. This makes sure that we delay startup of the
|
||||
* modbus protocol stack until the bus is free.
|
||||
*/
|
||||
eRcvState = STATE_RX_INIT;
|
||||
vMBPortSerialEnable( TRUE, FALSE );
|
||||
vMBPortTimersEnable( );
|
||||
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
}
|
||||
|
||||
void
|
||||
eMBRTUStop( void )
|
||||
{
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
vMBPortSerialEnable( FALSE, FALSE );
|
||||
vMBPortTimersDisable( );
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
assert_param( usRcvBufferPos < MB_SER_PDU_SIZE_MAX );
|
||||
|
||||
/* Length and CRC check */
|
||||
if( ( usRcvBufferPos >= MB_SER_PDU_SIZE_MIN )
|
||||
&& ( usMBCRC16( ( UCHAR * ) ucRTUBuf, usRcvBufferPos ) == 0 ) )
|
||||
{
|
||||
/* Save the address field. All frames are passed to the upper layed
|
||||
* and the decision if a frame is used is done there.
|
||||
*/
|
||||
*pucRcvAddress = ucRTUBuf[MB_SER_PDU_ADDR_OFF];
|
||||
|
||||
/* Total length of Modbus-PDU is Modbus-Serial-Line-PDU minus
|
||||
* size of address field and CRC checksum.
|
||||
*/
|
||||
*pusLength = ( USHORT )( usRcvBufferPos - MB_SER_PDU_PDU_OFF - MB_SER_PDU_SIZE_CRC );
|
||||
|
||||
/* Return the start of the Modbus PDU to the caller. */
|
||||
*pucFrame = ( UCHAR * ) & ucRTUBuf[MB_SER_PDU_PDU_OFF];
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EIO;
|
||||
}
|
||||
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBRTUSend( UCHAR ucSlaveAddress, const UCHAR * pucFrame, USHORT usLength )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
USHORT usCRC16;
|
||||
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
|
||||
/* Check if the receiver is still in idle state. If not we where to
|
||||
* slow with processing the received frame and the master sent another
|
||||
* frame on the network. We have to abort sending the frame.
|
||||
*/
|
||||
if( eRcvState == STATE_RX_IDLE )
|
||||
{
|
||||
/* First byte before the Modbus-PDU is the slave address. */
|
||||
pucSndBufferCur = ( UCHAR * ) pucFrame - 1;
|
||||
usSndBufferCount = 1;
|
||||
|
||||
/* Now copy the Modbus-PDU into the Modbus-Serial-Line-PDU. */
|
||||
pucSndBufferCur[MB_SER_PDU_ADDR_OFF] = ucSlaveAddress;
|
||||
usSndBufferCount += usLength;
|
||||
|
||||
/* Calculate CRC16 checksum for Modbus-Serial-Line-PDU. */
|
||||
usCRC16 = usMBCRC16( ( UCHAR * ) pucSndBufferCur, usSndBufferCount );
|
||||
ucRTUBuf[usSndBufferCount++] = ( UCHAR )( usCRC16 & 0xFF );
|
||||
ucRTUBuf[usSndBufferCount++] = ( UCHAR )( usCRC16 >> 8 );
|
||||
|
||||
/* Activate the transmitter. */
|
||||
eSndState = STATE_TX_XMIT;
|
||||
vMBPortSerialEnable( FALSE, TRUE );
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EIO;
|
||||
}
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
BOOL
|
||||
xMBRTUReceiveFSM( void )
|
||||
{
|
||||
BOOL xTaskNeedSwitch = FALSE;
|
||||
UCHAR ucByte;
|
||||
|
||||
assert_param( eSndState == STATE_TX_IDLE );
|
||||
|
||||
/* Always read the character. */
|
||||
( void )xMBPortSerialGetByte( ( CHAR * ) & ucByte );
|
||||
|
||||
switch ( eRcvState )
|
||||
{
|
||||
/* If we have received a character in the init state we have to
|
||||
* wait until the frame is finished.
|
||||
*/
|
||||
case STATE_RX_INIT:
|
||||
vMBPortTimersEnable( );
|
||||
break;
|
||||
|
||||
/* In the error state we wait until all characters in the
|
||||
* damaged frame are transmitted.
|
||||
*/
|
||||
case STATE_RX_ERROR:
|
||||
vMBPortTimersEnable( );
|
||||
break;
|
||||
|
||||
/* In the idle state we wait for a new character. If a character
|
||||
* is received the t1.5 and t3.5 timers are started and the
|
||||
* receiver is in the state STATE_RX_RECEIVCE.
|
||||
*/
|
||||
case STATE_RX_IDLE:
|
||||
usRcvBufferPos = 0;
|
||||
ucRTUBuf[usRcvBufferPos++] = ucByte;
|
||||
eRcvState = STATE_RX_RCV;
|
||||
|
||||
/* Enable t3.5 timers. */
|
||||
vMBPortTimersEnable( );
|
||||
break;
|
||||
|
||||
/* We are currently receiving a frame. Reset the timer after
|
||||
* every character received. If more than the maximum possible
|
||||
* number of bytes in a modbus frame is received the frame is
|
||||
* ignored.
|
||||
*/
|
||||
case STATE_RX_RCV:
|
||||
if( usRcvBufferPos < MB_SER_PDU_SIZE_MAX )
|
||||
{
|
||||
ucRTUBuf[usRcvBufferPos++] = ucByte;
|
||||
}
|
||||
else
|
||||
{
|
||||
eRcvState = STATE_RX_ERROR;
|
||||
}
|
||||
vMBPortTimersEnable();
|
||||
break;
|
||||
}
|
||||
return xTaskNeedSwitch;
|
||||
}
|
||||
|
||||
BOOL
|
||||
xMBRTUTransmitFSM( void )
|
||||
{
|
||||
BOOL xNeedPoll = FALSE;
|
||||
|
||||
assert_param( eRcvState == STATE_RX_IDLE );
|
||||
|
||||
switch ( eSndState )
|
||||
{
|
||||
/* We should not get a transmitter event if the transmitter is in
|
||||
* idle state. */
|
||||
case STATE_TX_IDLE:
|
||||
/* enable receiver/disable transmitter. */
|
||||
vMBPortSerialEnable( TRUE, FALSE );
|
||||
break;
|
||||
|
||||
case STATE_TX_XMIT:
|
||||
/* check if we are finished. */
|
||||
if( usSndBufferCount != 0 )
|
||||
{
|
||||
xMBPortSerialPutByte( ( CHAR )*pucSndBufferCur );
|
||||
pucSndBufferCur++; /* next byte in sendbuffer. */
|
||||
usSndBufferCount--;
|
||||
}
|
||||
else
|
||||
{
|
||||
xNeedPoll = xMBPortEventPost( EV_FRAME_SENT );
|
||||
/* Disable transmitter. This prevents another transmit buffer
|
||||
* empty interrupt. */
|
||||
vMBPortSerialEnable( TRUE, FALSE );
|
||||
eSndState = STATE_TX_IDLE;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
return xNeedPoll;
|
||||
}
|
||||
|
||||
BOOL
|
||||
xMBRTUTimerT35Expired( void )
|
||||
{
|
||||
BOOL xNeedPoll = FALSE;
|
||||
|
||||
switch ( eRcvState )
|
||||
{
|
||||
/* Timer t35 expired. Startup phase is finished. */
|
||||
case STATE_RX_INIT:
|
||||
xNeedPoll = xMBPortEventPost( EV_READY );
|
||||
break;
|
||||
|
||||
/* A frame was received and t35 expired. Notify the listener that
|
||||
* a new frame was received. */
|
||||
case STATE_RX_RCV:
|
||||
xNeedPoll = xMBPortEventPost( EV_FRAME_RECEIVED );
|
||||
break;
|
||||
|
||||
/* An error occured while receiving the frame. */
|
||||
case STATE_RX_ERROR:
|
||||
break;
|
||||
|
||||
/* Function called in an illegal state. */
|
||||
default:
|
||||
assert_param( ( eRcvState == STATE_RX_INIT ) ||
|
||||
( eRcvState == STATE_RX_RCV ) || ( eRcvState == STATE_RX_ERROR ) );
|
||||
break;
|
||||
}
|
||||
|
||||
vMBPortTimersDisable( );
|
||||
eRcvState = STATE_RX_IDLE;
|
||||
|
||||
return xNeedPoll;
|
||||
}
|
||||
@@ -0,0 +1,64 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbrtu.h,v 1.9 2006/12/07 22:10:34 wolti Exp $
|
||||
* File: $Id: mbrtu.h,v 1.60 2013/08/17 13:11:42 Armink Add Master Functions $
|
||||
*/
|
||||
#include "mbconfig.h"
|
||||
|
||||
#ifndef _MB_RTU_H
|
||||
#define _MB_RTU_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
eMBErrorCode eMBRTUInit( UCHAR slaveAddress, UCHAR ucPort, ULONG ulBaudRate,
|
||||
eMBParity eParity );
|
||||
void eMBRTUStart( void );
|
||||
void eMBRTUStop( void );
|
||||
eMBErrorCode eMBRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength );
|
||||
eMBErrorCode eMBRTUSend( UCHAR slaveAddress, const UCHAR * pucFrame, USHORT usLength );
|
||||
BOOL xMBRTUReceiveFSM( void );
|
||||
BOOL xMBRTUTransmitFSM( void );
|
||||
BOOL xMBRTUTimerT15Expired( void );
|
||||
BOOL xMBRTUTimerT35Expired( void );
|
||||
|
||||
#if MB_MASTER_RTU_ENABLED > 0
|
||||
eMBErrorCode eMBMasterRTUInit( UCHAR ucPort, ULONG ulBaudRate,eMBParity eParity );
|
||||
void eMBMasterRTUStart( void );
|
||||
void eMBMasterRTUStop( void );
|
||||
eMBErrorCode eMBMasterRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength );
|
||||
eMBErrorCode eMBMasterRTUSend( UCHAR slaveAddress, const UCHAR * pucFrame, USHORT usLength );
|
||||
BOOL xMBMasterRTUReceiveFSM( void );
|
||||
BOOL xMBMasterRTUTransmitFSM( void );
|
||||
BOOL xMBMasterRTUTimerExpired( void );
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
@@ -0,0 +1,446 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2013 China Beijing Armink <armink.ztl@gmail.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbrtu_m.c,v 1.60 2013/08/17 11:42:56 Armink Add Master Functions $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mb_m.h"
|
||||
#include "mbrtu.h"
|
||||
#include "mbframe.h"
|
||||
|
||||
#include "mbcrc.h"
|
||||
#include "mbport.h"
|
||||
|
||||
#if MB_MASTER_RTU_ENABLED > 0
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_SER_PDU_SIZE_MIN 4 /*!< Minimum size of a Modbus RTU frame. */
|
||||
#define MB_SER_PDU_SIZE_MAX 256 /*!< Maximum size of a Modbus RTU frame. */
|
||||
#define MB_SER_PDU_SIZE_CRC 2 /*!< Size of CRC field in PDU. */
|
||||
#define MB_SER_PDU_ADDR_OFF 0 /*!< Offset of slave address in Ser-PDU. */
|
||||
#define MB_SER_PDU_PDU_OFF 1 /*!< Offset of Modbus-PDU in Ser-PDU. */
|
||||
|
||||
/* ----------------------- Type definitions ---------------------------------*/
|
||||
typedef enum
|
||||
{
|
||||
STATE_M_RX_INIT, /*!< Receiver is in initial state. */
|
||||
STATE_M_RX_IDLE, /*!< Receiver is in idle state. */
|
||||
STATE_M_RX_RCV, /*!< Frame is beeing received. */
|
||||
STATE_M_RX_ERROR, /*!< If the frame is invalid. */
|
||||
} eMBMasterRcvState;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
STATE_M_TX_IDLE, /*!< Transmitter is in idle state. */
|
||||
STATE_M_TX_XMIT, /*!< Transmitter is in transfer state. */
|
||||
STATE_M_TX_XFWR, /*!< Transmitter is in transfer finish and wait receive state. */
|
||||
} eMBMasterSndState;
|
||||
|
||||
/* ----------------------- Static variables ---------------------------------*/
|
||||
static volatile eMBMasterSndState eSndState;
|
||||
static volatile eMBMasterRcvState eRcvState;
|
||||
|
||||
static volatile UCHAR ucMasterRTUSndBuf[MB_PDU_SIZE_MAX];
|
||||
static volatile UCHAR ucMasterRTURcvBuf[MB_SER_PDU_SIZE_MAX];
|
||||
static volatile USHORT usMasterSendPDULength;
|
||||
|
||||
static volatile UCHAR *pucMasterSndBufferCur;
|
||||
static volatile USHORT usMasterSndBufferCount;
|
||||
|
||||
static volatile USHORT usMasterRcvBufferPos;
|
||||
static volatile BOOL xFrameIsBroadcast = FALSE;
|
||||
|
||||
static volatile eMBMasterTimerMode eMasterCurTimerMode;
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
eMBErrorCode
|
||||
eMBMasterRTUInit(UCHAR ucPort, ULONG ulBaudRate, eMBParity eParity )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
ULONG usTimerT35_50us;
|
||||
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
|
||||
/* Modbus RTU uses 8 Databits. */
|
||||
if( xMBMasterPortSerialInit( ucPort, ulBaudRate, 8, eParity ) != TRUE )
|
||||
{
|
||||
eStatus = MB_EPORTERR;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* If baudrate > 19200 then we should use the fixed timer values
|
||||
* t35 = 1750us. Otherwise t35 must be 3.5 times the character time.
|
||||
*/
|
||||
if( ulBaudRate > 19200 )
|
||||
{
|
||||
usTimerT35_50us = 35; /* 1800us. */
|
||||
}
|
||||
else
|
||||
{
|
||||
/* The timer reload value for a character is given by:
|
||||
*
|
||||
* ChTimeValue = Ticks_per_1s / ( Baudrate / 11 )
|
||||
* = 11 * Ticks_per_1s / Baudrate
|
||||
* = 220000 / Baudrate
|
||||
* The reload for t3.5 is 1.5 times this value and similary
|
||||
* for t3.5.
|
||||
*/
|
||||
usTimerT35_50us = ( 7UL * 220000UL ) / ( 2UL * ulBaudRate );
|
||||
}
|
||||
if( xMBMasterPortTimersInit( ( USHORT ) usTimerT35_50us ) != TRUE )
|
||||
{
|
||||
eStatus = MB_EPORTERR;
|
||||
}
|
||||
}
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
void
|
||||
eMBMasterRTUStart( void )
|
||||
{
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
/* Initially the receiver is in the state STATE_M_RX_INIT. we start
|
||||
* the timer and if no character is received within t3.5 we change
|
||||
* to STATE_M_RX_IDLE. This makes sure that we delay startup of the
|
||||
* modbus protocol stack until the bus is free.
|
||||
*/
|
||||
eRcvState = STATE_M_RX_INIT;
|
||||
vMBMasterPortSerialEnable( TRUE, FALSE );
|
||||
vMBMasterPortTimersT35Enable( );
|
||||
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
}
|
||||
|
||||
void
|
||||
eMBMasterRTUStop( void )
|
||||
{
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
vMBMasterPortSerialEnable( FALSE, FALSE );
|
||||
vMBMasterPortTimersDisable( );
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBMasterRTUReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame, USHORT * pusLength )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
assert_param( usMasterRcvBufferPos < MB_SER_PDU_SIZE_MAX );
|
||||
|
||||
/* Length and CRC check */
|
||||
if( ( usMasterRcvBufferPos >= MB_SER_PDU_SIZE_MIN )
|
||||
&& ( usMBCRC16( ( UCHAR * ) ucMasterRTURcvBuf, usMasterRcvBufferPos ) == 0 ) )
|
||||
{
|
||||
/* Save the address field. All frames are passed to the upper layed
|
||||
* and the decision if a frame is used is done there.
|
||||
*/
|
||||
*pucRcvAddress = ucMasterRTURcvBuf[MB_SER_PDU_ADDR_OFF];
|
||||
|
||||
/* Total length of Modbus-PDU is Modbus-Serial-Line-PDU minus
|
||||
* size of address field and CRC checksum.
|
||||
*/
|
||||
*pusLength = ( USHORT )( usMasterRcvBufferPos - MB_SER_PDU_PDU_OFF - MB_SER_PDU_SIZE_CRC );
|
||||
|
||||
/* Return the start of the Modbus PDU to the caller. */
|
||||
*pucFrame = ( UCHAR * ) & ucMasterRTURcvBuf[MB_SER_PDU_PDU_OFF];
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EIO;
|
||||
}
|
||||
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBMasterRTUSend( UCHAR ucSlaveAddress, const UCHAR * pucFrame, USHORT usLength )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
USHORT usCRC16;
|
||||
|
||||
if ( ucSlaveAddress > MB_MASTER_TOTAL_SLAVE_NUM ) return MB_EINVAL;
|
||||
|
||||
ENTER_CRITICAL_SECTION( );
|
||||
|
||||
/* Check if the receiver is still in idle state. If not we where to
|
||||
* slow with processing the received frame and the master sent another
|
||||
* frame on the network. We have to abort sending the frame.
|
||||
*/
|
||||
if( eRcvState == STATE_M_RX_IDLE )
|
||||
{
|
||||
/* First byte before the Modbus-PDU is the slave address. */
|
||||
pucMasterSndBufferCur = ( UCHAR * ) pucFrame - 1;
|
||||
usMasterSndBufferCount = 1;
|
||||
|
||||
/* Now copy the Modbus-PDU into the Modbus-Serial-Line-PDU. */
|
||||
pucMasterSndBufferCur[MB_SER_PDU_ADDR_OFF] = ucSlaveAddress;
|
||||
usMasterSndBufferCount += usLength;
|
||||
|
||||
/* Calculate CRC16 checksum for Modbus-Serial-Line-PDU. */
|
||||
usCRC16 = usMBCRC16( ( UCHAR * ) pucMasterSndBufferCur, usMasterSndBufferCount );
|
||||
ucMasterRTUSndBuf[usMasterSndBufferCount++] = ( UCHAR )( usCRC16 & 0xFF );
|
||||
ucMasterRTUSndBuf[usMasterSndBufferCount++] = ( UCHAR )( usCRC16 >> 8 );
|
||||
|
||||
/* Activate the transmitter. */
|
||||
eSndState = STATE_M_TX_XMIT;
|
||||
vMBMasterPortSerialEnable( FALSE, TRUE );
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EIO;
|
||||
}
|
||||
EXIT_CRITICAL_SECTION( );
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
BOOL
|
||||
xMBMasterRTUReceiveFSM( void )
|
||||
{
|
||||
BOOL xTaskNeedSwitch = FALSE;
|
||||
UCHAR ucByte;
|
||||
|
||||
assert_param(( eSndState == STATE_M_TX_IDLE ) || ( eSndState == STATE_M_TX_XFWR ));
|
||||
|
||||
/* Always read the character. */
|
||||
( void )xMBMasterPortSerialGetByte( ( CHAR * ) & ucByte );
|
||||
|
||||
switch ( eRcvState )
|
||||
{
|
||||
/* If we have received a character in the init state we have to
|
||||
* wait until the frame is finished.
|
||||
*/
|
||||
case STATE_M_RX_INIT:
|
||||
vMBMasterPortTimersT35Enable( );
|
||||
break;
|
||||
|
||||
/* In the error state we wait until all characters in the
|
||||
* damaged frame are transmitted.
|
||||
*/
|
||||
case STATE_M_RX_ERROR:
|
||||
vMBMasterPortTimersT35Enable( );
|
||||
break;
|
||||
|
||||
/* In the idle state we wait for a new character. If a character
|
||||
* is received the t1.5 and t3.5 timers are started and the
|
||||
* receiver is in the state STATE_RX_RECEIVCE and disable early
|
||||
* the timer of respond timeout .
|
||||
*/
|
||||
case STATE_M_RX_IDLE:
|
||||
/* In time of respond timeout,the receiver receive a frame.
|
||||
* Disable timer of respond timeout and change the transmiter state to idle.
|
||||
*/
|
||||
vMBMasterPortTimersDisable( );
|
||||
eSndState = STATE_M_TX_IDLE;
|
||||
|
||||
usMasterRcvBufferPos = 0;
|
||||
ucMasterRTURcvBuf[usMasterRcvBufferPos++] = ucByte;
|
||||
eRcvState = STATE_M_RX_RCV;
|
||||
|
||||
/* Enable t3.5 timers. */
|
||||
vMBMasterPortTimersT35Enable( );
|
||||
break;
|
||||
|
||||
/* We are currently receiving a frame. Reset the timer after
|
||||
* every character received. If more than the maximum possible
|
||||
* number of bytes in a modbus frame is received the frame is
|
||||
* ignored.
|
||||
*/
|
||||
case STATE_M_RX_RCV:
|
||||
if( usMasterRcvBufferPos < MB_SER_PDU_SIZE_MAX )
|
||||
{
|
||||
ucMasterRTURcvBuf[usMasterRcvBufferPos++] = ucByte;
|
||||
}
|
||||
else
|
||||
{
|
||||
eRcvState = STATE_M_RX_ERROR;
|
||||
}
|
||||
vMBMasterPortTimersT35Enable();
|
||||
break;
|
||||
}
|
||||
return xTaskNeedSwitch;
|
||||
}
|
||||
|
||||
BOOL
|
||||
xMBMasterRTUTransmitFSM( void )
|
||||
{
|
||||
BOOL xNeedPoll = FALSE;
|
||||
|
||||
assert_param( eRcvState == STATE_M_RX_IDLE );
|
||||
|
||||
switch ( eSndState )
|
||||
{
|
||||
/* We should not get a transmitter event if the transmitter is in
|
||||
* idle state. */
|
||||
case STATE_M_TX_IDLE:
|
||||
/* enable receiver/disable transmitter. */
|
||||
vMBMasterPortSerialEnable( TRUE, FALSE );
|
||||
break;
|
||||
|
||||
case STATE_M_TX_XMIT:
|
||||
/* check if we are finished. */
|
||||
if( usMasterSndBufferCount != 0 )
|
||||
{
|
||||
xMBMasterPortSerialPutByte( ( CHAR )*pucMasterSndBufferCur );
|
||||
pucMasterSndBufferCur++; /* next byte in sendbuffer. */
|
||||
usMasterSndBufferCount--;
|
||||
}
|
||||
else
|
||||
{
|
||||
xFrameIsBroadcast = ( ucMasterRTUSndBuf[MB_SER_PDU_ADDR_OFF] == MB_ADDRESS_BROADCAST ) ? TRUE : FALSE;
|
||||
/* Disable transmitter. This prevents another transmit buffer
|
||||
* empty interrupt. */
|
||||
vMBMasterPortSerialEnable( TRUE, FALSE );
|
||||
eSndState = STATE_M_TX_XFWR;
|
||||
/* If the frame is broadcast ,master will enable timer of convert delay,
|
||||
* else master will enable timer of respond timeout. */
|
||||
if ( xFrameIsBroadcast == TRUE )
|
||||
{
|
||||
vMBMasterPortTimersConvertDelayEnable( );
|
||||
}
|
||||
else
|
||||
{
|
||||
vMBMasterPortTimersRespondTimeoutEnable( );
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return xNeedPoll;
|
||||
}
|
||||
|
||||
BOOL
|
||||
xMBMasterRTUTimerExpired(void)
|
||||
{
|
||||
BOOL xNeedPoll = FALSE;
|
||||
|
||||
switch (eRcvState)
|
||||
{
|
||||
/* Timer t35 expired. Startup phase is finished. */
|
||||
case STATE_M_RX_INIT:
|
||||
xNeedPoll = xMBMasterPortEventPost(EV_MASTER_READY);
|
||||
break;
|
||||
|
||||
/* A frame was received and t35 expired. Notify the listener that
|
||||
* a new frame was received. */
|
||||
case STATE_M_RX_RCV:
|
||||
xNeedPoll = xMBMasterPortEventPost(EV_MASTER_FRAME_RECEIVED);
|
||||
break;
|
||||
|
||||
/* An error occured while receiving the frame. */
|
||||
case STATE_M_RX_ERROR:
|
||||
vMBMasterSetErrorType(EV_ERROR_RECEIVE_DATA);
|
||||
xNeedPoll = xMBMasterPortEventPost( EV_MASTER_ERROR_PROCESS );
|
||||
break;
|
||||
|
||||
/* Function called in an illegal state. */
|
||||
default:
|
||||
assert_param(
|
||||
( eRcvState == STATE_M_RX_INIT ) || ( eRcvState == STATE_M_RX_RCV ) ||
|
||||
( eRcvState == STATE_M_RX_ERROR ) || ( eRcvState == STATE_M_RX_IDLE ));
|
||||
break;
|
||||
}
|
||||
eRcvState = STATE_M_RX_IDLE;
|
||||
|
||||
switch (eSndState)
|
||||
{
|
||||
/* A frame was send finish and convert delay or respond timeout expired.
|
||||
* If the frame is broadcast,The master will idle,and if the frame is not
|
||||
* broadcast.Notify the listener process error.*/
|
||||
case STATE_M_TX_XFWR:
|
||||
if ( xFrameIsBroadcast == FALSE ) {
|
||||
vMBMasterSetErrorType(EV_ERROR_RESPOND_TIMEOUT);
|
||||
xNeedPoll = xMBMasterPortEventPost(EV_MASTER_ERROR_PROCESS);
|
||||
}
|
||||
break;
|
||||
/* Function called in an illegal state. */
|
||||
default:
|
||||
assert_param(
|
||||
( eSndState == STATE_M_TX_XFWR ) || ( eSndState == STATE_M_TX_IDLE ));
|
||||
break;
|
||||
}
|
||||
eSndState = STATE_M_TX_IDLE;
|
||||
|
||||
vMBMasterPortTimersDisable( );
|
||||
/* If timer mode is convert delay, the master event then turns EV_MASTER_EXECUTE status. */
|
||||
if (eMasterCurTimerMode == MB_TMODE_CONVERT_DELAY) {
|
||||
xNeedPoll = xMBMasterPortEventPost( EV_MASTER_EXECUTE );
|
||||
}
|
||||
|
||||
return xNeedPoll;
|
||||
}
|
||||
|
||||
/* Get Modbus Master send RTU's buffer address pointer.*/
|
||||
void vMBMasterGetRTUSndBuf( UCHAR ** pucFrame )
|
||||
{
|
||||
*pucFrame = ( UCHAR * ) ucMasterRTUSndBuf;
|
||||
}
|
||||
|
||||
/* Get Modbus Master send PDU's buffer address pointer.*/
|
||||
void vMBMasterGetPDUSndBuf( UCHAR ** pucFrame )
|
||||
{
|
||||
*pucFrame = ( UCHAR * ) &ucMasterRTUSndBuf[MB_SER_PDU_PDU_OFF];
|
||||
}
|
||||
|
||||
/* Set Modbus Master send PDU's buffer length.*/
|
||||
void vMBMasterSetPDUSndLength( USHORT SendPDULength )
|
||||
{
|
||||
usMasterSendPDULength = SendPDULength;
|
||||
}
|
||||
|
||||
/* Get Modbus Master send PDU's buffer length.*/
|
||||
USHORT usMBMasterGetPDUSndLength( void )
|
||||
{
|
||||
return usMasterSendPDULength;
|
||||
}
|
||||
|
||||
/* Set Modbus Master current timer mode.*/
|
||||
void vMBMasterSetCurTimerMode( eMBMasterTimerMode eMBTimerMode )
|
||||
{
|
||||
eMasterCurTimerMode = eMBTimerMode;
|
||||
}
|
||||
|
||||
/* The master request is broadcast? */
|
||||
BOOL xMBMasterRequestIsBroadcast( void ){
|
||||
return xFrameIsBroadcast;
|
||||
}
|
||||
#endif
|
||||
|
||||
@@ -0,0 +1,158 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbtcp.c,v 1.3 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
/* ----------------------- System includes ----------------------------------*/
|
||||
#include "stdlib.h"
|
||||
#include "string.h"
|
||||
|
||||
/* ----------------------- Platform includes --------------------------------*/
|
||||
#include "port.h"
|
||||
|
||||
/* ----------------------- Modbus includes ----------------------------------*/
|
||||
#include "mb.h"
|
||||
#include "mbconfig.h"
|
||||
#include "mbtcp.h"
|
||||
#include "mbframe.h"
|
||||
#include "mbport.h"
|
||||
|
||||
#if MB_SLAVE_TCP_ENABLED > 0
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
|
||||
/* ----------------------- MBAP Header --------------------------------------*/
|
||||
/*
|
||||
*
|
||||
* <------------------------ MODBUS TCP/IP ADU(1) ------------------------->
|
||||
* <----------- MODBUS PDU (1') ---------------->
|
||||
* +-----------+---------------+------------------------------------------+
|
||||
* | TID | PID | Length | UID |Code | Data |
|
||||
* +-----------+---------------+------------------------------------------+
|
||||
* | | | | |
|
||||
* (2) (3) (4) (5) (6)
|
||||
*
|
||||
* (2) ... MB_TCP_TID = 0 (Transaction Identifier - 2 Byte)
|
||||
* (3) ... MB_TCP_PID = 2 (Protocol Identifier - 2 Byte)
|
||||
* (4) ... MB_TCP_LEN = 4 (Number of bytes - 2 Byte)
|
||||
* (5) ... MB_TCP_UID = 6 (Unit Identifier - 1 Byte)
|
||||
* (6) ... MB_TCP_FUNC = 7 (Modbus Function Code)
|
||||
*
|
||||
* (1) ... Modbus TCP/IP Application Data Unit
|
||||
* (1') ... Modbus Protocol Data Unit
|
||||
*/
|
||||
|
||||
#define MB_TCP_TID 0
|
||||
#define MB_TCP_PID 2
|
||||
#define MB_TCP_LEN 4
|
||||
#define MB_TCP_UID 6
|
||||
#define MB_TCP_FUNC 7
|
||||
|
||||
#define MB_TCP_PROTOCOL_ID 0 /* 0 = Modbus Protocol */
|
||||
|
||||
|
||||
/* ----------------------- Start implementation -----------------------------*/
|
||||
eMBErrorCode
|
||||
eMBTCPDoInit( USHORT ucTCPPort )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
|
||||
if( xMBTCPPortInit( ucTCPPort ) == FALSE )
|
||||
{
|
||||
eStatus = MB_EPORTERR;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
void
|
||||
eMBTCPStart( void )
|
||||
{
|
||||
}
|
||||
|
||||
void
|
||||
eMBTCPStop( void )
|
||||
{
|
||||
/* Make sure that no more clients are connected. */
|
||||
vMBTCPPortDisable( );
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBTCPReceive( UCHAR * pucRcvAddress, UCHAR ** ppucFrame, USHORT * pusLength )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_EIO;
|
||||
UCHAR *pucMBTCPFrame;
|
||||
USHORT usLength;
|
||||
USHORT usPID;
|
||||
|
||||
if( xMBTCPPortGetRequest( &pucMBTCPFrame, &usLength ) != FALSE )
|
||||
{
|
||||
usPID = pucMBTCPFrame[MB_TCP_PID] << 8U;
|
||||
usPID |= pucMBTCPFrame[MB_TCP_PID + 1];
|
||||
|
||||
if( usPID == MB_TCP_PROTOCOL_ID )
|
||||
{
|
||||
*ppucFrame = &pucMBTCPFrame[MB_TCP_FUNC];
|
||||
*pusLength = usLength - MB_TCP_FUNC;
|
||||
eStatus = MB_ENOERR;
|
||||
|
||||
/* Modbus TCP does not use any addresses. Fake the source address such
|
||||
* that the processing part deals with this frame.
|
||||
*/
|
||||
*pucRcvAddress = MB_TCP_PSEUDO_ADDRESS;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
eStatus = MB_EIO;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
eMBErrorCode
|
||||
eMBTCPSend( UCHAR _unused, const UCHAR * pucFrame, USHORT usLength )
|
||||
{
|
||||
eMBErrorCode eStatus = MB_ENOERR;
|
||||
UCHAR *pucMBTCPFrame = ( UCHAR * ) pucFrame - MB_TCP_FUNC;
|
||||
USHORT usTCPLength = usLength + MB_TCP_FUNC;
|
||||
|
||||
/* The MBAP header is already initialized because the caller calls this
|
||||
* function with the buffer returned by the previous call. Therefore we
|
||||
* only have to update the length in the header. Note that the length
|
||||
* header includes the size of the Modbus PDU and the UID Byte. Therefore
|
||||
* the length is usLength plus one.
|
||||
*/
|
||||
pucMBTCPFrame[MB_TCP_LEN] = ( usLength + 1 ) >> 8U;
|
||||
pucMBTCPFrame[MB_TCP_LEN + 1] = ( usLength + 1 ) & 0xFF;
|
||||
if( xMBTCPPortSendResponse( pucMBTCPFrame, usTCPLength ) == FALSE )
|
||||
{
|
||||
eStatus = MB_EIO;
|
||||
}
|
||||
return eStatus;
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -0,0 +1,53 @@
|
||||
/*
|
||||
* FreeModbus Libary: A portable Modbus implementation for Modbus ASCII/RTU.
|
||||
* Copyright (c) 2006-2018 Christian Walter <cwalter@embedded-solutions.at>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* File: $Id: mbtcp.h,v 1.2 2006/12/07 22:10:34 wolti Exp $
|
||||
*/
|
||||
|
||||
#ifndef _MB_TCP_H
|
||||
#define _MB_TCP_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_BEGIN_EXTERN_C
|
||||
#endif
|
||||
|
||||
/* ----------------------- Defines ------------------------------------------*/
|
||||
#define MB_TCP_PSEUDO_ADDRESS 255
|
||||
|
||||
/* ----------------------- Function prototypes ------------------------------*/
|
||||
eMBErrorCode eMBTCPDoInit( USHORT ucTCPPort );
|
||||
void eMBTCPStart( void );
|
||||
void eMBTCPStop( void );
|
||||
eMBErrorCode eMBTCPReceive( UCHAR * pucRcvAddress, UCHAR ** pucFrame,
|
||||
USHORT * pusLength );
|
||||
eMBErrorCode eMBTCPSend( UCHAR _unused, const UCHAR * pucFrame,
|
||||
USHORT usLength );
|
||||
|
||||
#ifdef __cplusplus
|
||||
PR_END_EXTERN_C
|
||||
#endif
|
||||
#endif
|
||||
Reference in new issue
Block a user