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;******************************************************************************
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;* File Name : startup_stm32g0b1xx.s
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;* Author : MCD Application Team
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;* Description : STM32G0b1xx devices vector table for MDK-ARM toolchain.
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;* This module performs:
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;* - Set the initial SP
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;* - Set the initial PC == Reset_Handler
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;* - Set the vector table entries with the exceptions ISR address
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;* - Branches to __main in the C library (which eventually
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;* calls main()).
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;* After Reset the CortexM0 processor is in Thread mode,
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;* priority is Privileged, and the Stack is set to Main.
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;* <<< Use Configuration Wizard in Context Menu >>>
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;******************************************************************************
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;* @attention
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;*
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;* Copyright (c) 2020 STMicroelectronics. All rights reserved.
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;*
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;* This software component is licensed by ST under Apache License, Version 2.0,
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;* the "License"; You may not use this file except in compliance with the
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;* License. You may obtain a copy of the License at:
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;* opensource.org/licenses/Apache-2.0
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;*
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;******************************************************************************
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; Amount of memory (in bytes) allocated for Stack
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; Tailor this value to your application needs
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; <h> Stack Configuration
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; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
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; </h>
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Stack_Size EQU 0x00000400
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AREA STACK, NOINIT, READWRITE, ALIGN=3
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Stack_Mem SPACE Stack_Size
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__initial_sp
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; <h> Heap Configuration
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; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
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; </h>
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Heap_Size EQU 0x00000200
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AREA HEAP, NOINIT, READWRITE, ALIGN=3
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__heap_base
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Heap_Mem SPACE Heap_Size
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__heap_limit
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PRESERVE8
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THUMB
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; Vector Table Mapped to Address 0 at Reset
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AREA RESET, DATA, READONLY
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EXPORT __Vectors
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EXPORT __Vectors_End
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EXPORT __Vectors_Size
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__Vectors DCD __initial_sp ; Top of Stack
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DCD Reset_Handler ; Reset Handler
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DCD NMI_Handler ; NMI Handler
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DCD HardFault_Handler ; Hard Fault Handler
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD SVC_Handler ; SVCall Handler
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DCD 0 ; Reserved
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DCD 0 ; Reserved
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DCD PendSV_Handler ; PendSV Handler
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DCD SysTick_Handler ; SysTick Handler
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; External Interrupts
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DCD WWDG_IRQHandler ; Window Watchdog
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DCD PVD_VDDIO2_IRQHandler ; PVD through EXTI Line detect
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DCD RTC_TAMP_IRQHandler ; RTC through EXTI Line
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DCD FLASH_IRQHandler ; FLASH
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DCD RCC_CRS_IRQHandler ; RCC & CRS
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DCD EXTI0_1_IRQHandler ; EXTI Line 0 and 1
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DCD EXTI2_3_IRQHandler ; EXTI Line 2 and 3
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DCD EXTI4_15_IRQHandler ; EXTI Line 4 to 15
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DCD USB_UCPD1_2_IRQHandler ; USB, UCPD1 & UCPD2
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DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1
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DCD DMA1_Channel2_3_IRQHandler ; DMA1 Channel 2 and Channel 3
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DCD DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQHandler ; DMA1 Ch4 to Ch7, DMA2 Ch1 to Ch5 ,DMAMUX1 overrun
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DCD ADC1_COMP_IRQHandler ; ADC1, COMP1, COMP2 and COMP3
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DCD TIM1_BRK_UP_TRG_COM_IRQHandler ; TIM1 Break, Update, Trigger and Commutation
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DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
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DCD TIM2_IRQHandler ; TIM2
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DCD TIM3_TIM4_IRQHandler ; TIM3, TIM4
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DCD TIM6_DAC_LPTIM1_IRQHandler ; TIM6, DAC & LPTIM1
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DCD TIM7_LPTIM2_IRQHandler ; TIM7 & LPTIM2
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DCD TIM14_IRQHandler ; TIM14
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DCD TIM15_IRQHandler ; TIM15
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DCD TIM16_FDCAN_IT0_IRQHandler ; TIM16 & FDCAN1_IT0 & FDCAN2_IT0
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DCD TIM17_FDCAN_IT1_IRQHandler ; TIM17 & FDCAN1_IT1 & FDCAN2_IT1
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DCD I2C1_IRQHandler ; I2C1
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DCD I2C2_3_IRQHandler ; I2C2, I2C3
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DCD SPI1_IRQHandler ; SPI1
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DCD SPI2_3_IRQHandler ; SPI2, SPI3
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DCD USART1_IRQHandler ; USART1
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DCD USART2_LPUART2_IRQHandler ; USART2 & LPUART2
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DCD USART3_4_5_6_LPUART1_IRQHandler ; USART3, USART4, USART5, USART6, LPUART1
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DCD CEC_IRQHandler ; CEC
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__Vectors_End
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__Vectors_Size EQU __Vectors_End - __Vectors
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AREA |.text|, CODE, READONLY
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; Reset handler routine
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Reset_Handler PROC
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EXPORT Reset_Handler [WEAK]
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IMPORT __main
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IMPORT SystemInit
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LDR R0, =SystemInit
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BLX R0
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LDR R0, =__main
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BX R0
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ENDP
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; Dummy Exception Handlers (infinite loops which can be modified)
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NMI_Handler PROC
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EXPORT NMI_Handler [WEAK]
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B .
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ENDP
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HardFault_Handler\
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PROC
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EXPORT HardFault_Handler [WEAK]
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B .
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ENDP
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SVC_Handler PROC
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EXPORT SVC_Handler [WEAK]
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B .
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ENDP
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PendSV_Handler PROC
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EXPORT PendSV_Handler [WEAK]
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B .
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ENDP
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SysTick_Handler PROC
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EXPORT SysTick_Handler [WEAK]
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B .
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ENDP
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Default_Handler PROC
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EXPORT WWDG_IRQHandler [WEAK]
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EXPORT PVD_VDDIO2_IRQHandler [WEAK]
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EXPORT RTC_TAMP_IRQHandler [WEAK]
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EXPORT FLASH_IRQHandler [WEAK]
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EXPORT RCC_CRS_IRQHandler [WEAK]
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EXPORT EXTI0_1_IRQHandler [WEAK]
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EXPORT EXTI2_3_IRQHandler [WEAK]
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EXPORT EXTI4_15_IRQHandler [WEAK]
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EXPORT USB_UCPD1_2_IRQHandler [WEAK]
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EXPORT DMA1_Channel1_IRQHandler [WEAK]
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EXPORT DMA1_Channel2_3_IRQHandler [WEAK]
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EXPORT DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQHandler [WEAK]
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EXPORT ADC1_COMP_IRQHandler [WEAK]
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EXPORT TIM1_BRK_UP_TRG_COM_IRQHandler [WEAK]
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EXPORT TIM1_CC_IRQHandler [WEAK]
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EXPORT TIM2_IRQHandler [WEAK]
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EXPORT TIM3_TIM4_IRQHandler [WEAK]
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EXPORT TIM6_DAC_LPTIM1_IRQHandler [WEAK]
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EXPORT TIM7_LPTIM2_IRQHandler [WEAK]
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EXPORT TIM14_IRQHandler [WEAK]
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EXPORT TIM15_IRQHandler [WEAK]
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EXPORT TIM16_FDCAN_IT0_IRQHandler [WEAK]
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EXPORT TIM17_FDCAN_IT1_IRQHandler [WEAK]
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EXPORT I2C1_IRQHandler [WEAK]
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EXPORT I2C2_3_IRQHandler [WEAK]
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EXPORT SPI1_IRQHandler [WEAK]
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EXPORT SPI2_3_IRQHandler [WEAK]
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EXPORT USART1_IRQHandler [WEAK]
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EXPORT USART2_LPUART2_IRQHandler [WEAK]
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EXPORT USART3_4_5_6_LPUART1_IRQHandler [WEAK]
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EXPORT CEC_IRQHandler [WEAK]
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WWDG_IRQHandler
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PVD_VDDIO2_IRQHandler
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RTC_TAMP_IRQHandler
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FLASH_IRQHandler
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RCC_CRS_IRQHandler
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EXTI0_1_IRQHandler
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EXTI2_3_IRQHandler
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EXTI4_15_IRQHandler
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USB_UCPD1_2_IRQHandler
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DMA1_Channel1_IRQHandler
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DMA1_Channel2_3_IRQHandler
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DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQHandler
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ADC1_COMP_IRQHandler
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TIM1_BRK_UP_TRG_COM_IRQHandler
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TIM1_CC_IRQHandler
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TIM2_IRQHandler
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TIM3_TIM4_IRQHandler
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TIM6_DAC_LPTIM1_IRQHandler
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TIM7_LPTIM2_IRQHandler
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TIM14_IRQHandler
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TIM15_IRQHandler
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TIM16_FDCAN_IT0_IRQHandler
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TIM17_FDCAN_IT1_IRQHandler
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I2C1_IRQHandler
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I2C2_3_IRQHandler
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SPI1_IRQHandler
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SPI2_3_IRQHandler
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USART1_IRQHandler
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USART2_LPUART2_IRQHandler
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USART3_4_5_6_LPUART1_IRQHandler
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CEC_IRQHandler
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B .
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ENDP
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ALIGN
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;*******************************************************************************
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; User Stack and Heap initialization
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;*******************************************************************************
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IF :DEF:__MICROLIB
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EXPORT __initial_sp
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EXPORT __heap_base
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EXPORT __heap_limit
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ELSE
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IMPORT __use_two_region_memory
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EXPORT __user_initial_stackheap
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__user_initial_stackheap
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LDR R0, = Heap_Mem
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LDR R1, =(Stack_Mem + Stack_Size)
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LDR R2, = (Heap_Mem + Heap_Size)
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LDR R3, = Stack_Mem
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BX LR
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ALIGN
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ENDIF
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END
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;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****
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@@ -0,0 +1,290 @@
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/**
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******************************************************************************
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* @file system_stm32g0xx.c
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* @author MCD Application Team
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* @brief CMSIS Cortex-M0+ Device Peripheral Access Layer System Source File
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*
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* This file provides two functions and one global variable to be called from
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* user application:
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* - SystemInit(): This function is called at startup just after reset and
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* before branch to main program. This call is made inside
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* the "startup_stm32g0xx.s" file.
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*
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* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
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* by the user application to setup the SysTick
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* timer or configure other parameters.
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*
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* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
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* be called whenever the core clock is changed
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* during program execution.
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*
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* After each device reset the HSI (8 MHz then 16 MHz) is used as system clock source.
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* Then SystemInit() function is called, in "startup_stm32g0xx.s" file, to
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* configure the system clock before to branch to main program.
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*
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* This file configures the system clock as follows:
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*=============================================================================
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*-----------------------------------------------------------------------------
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* System Clock source | HSI
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*-----------------------------------------------------------------------------
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* SYSCLK(Hz) | 16000000
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*-----------------------------------------------------------------------------
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* HCLK(Hz) | 16000000
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*-----------------------------------------------------------------------------
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* AHB Prescaler | 1
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*-----------------------------------------------------------------------------
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* APB Prescaler | 1
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*-----------------------------------------------------------------------------
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* HSI Division factor | 1
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*-----------------------------------------------------------------------------
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* PLL_M | 1
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*-----------------------------------------------------------------------------
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* PLL_N | 8
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*-----------------------------------------------------------------------------
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* PLL_P | 7
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*-----------------------------------------------------------------------------
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* PLL_Q | 2
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*-----------------------------------------------------------------------------
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* PLL_R | 2
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*-----------------------------------------------------------------------------
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* Require 48MHz for RNG | Disabled
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*-----------------------------------------------------------------------------
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*=============================================================================
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2018 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under Apache License, Version 2.0,
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* the "License"; You may not use this file except in compliance with the
|
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/Apache-2.0
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*
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******************************************************************************
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*/
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/** @addtogroup CMSIS
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* @{
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*/
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/** @addtogroup stm32g0xx_system
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* @{
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*/
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/** @addtogroup STM32G0xx_System_Private_Includes
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* @{
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*/
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#include "stm32g0xx.h"
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#if !defined (HSE_VALUE)
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#define HSE_VALUE (8000000UL) /*!< Value of the External oscillator in Hz */
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#endif /* HSE_VALUE */
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#if !defined (HSI_VALUE)
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#define HSI_VALUE (16000000UL) /*!< Value of the Internal oscillator in Hz*/
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#endif /* HSI_VALUE */
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#if !defined (LSI_VALUE)
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#define LSI_VALUE (32000UL) /*!< Value of LSI in Hz*/
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#endif /* LSI_VALUE */
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#if !defined (LSE_VALUE)
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#define LSE_VALUE (32768UL) /*!< Value of LSE in Hz*/
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#endif /* LSE_VALUE */
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/**
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* @}
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*/
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/** @addtogroup STM32G0xx_System_Private_TypesDefinitions
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* @{
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*/
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/**
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* @}
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*/
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/** @addtogroup STM32G0xx_System_Private_Defines
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* @{
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*/
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/************************* Miscellaneous Configuration ************************/
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/*!< Uncomment the following line if you need to relocate your vector Table in
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Internal SRAM. */
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/* #define VECT_TAB_SRAM */
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#define VECT_TAB_OFFSET 0x0U /*!< Vector Table base offset field.
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This value must be a multiple of 0x100. */
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/******************************************************************************/
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/**
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* @}
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*/
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/** @addtogroup STM32G0xx_System_Private_Macros
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* @{
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*/
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/**
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* @}
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*/
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/** @addtogroup STM32G0xx_System_Private_Variables
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* @{
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*/
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/* The SystemCoreClock variable is updated in three ways:
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1) by calling CMSIS function SystemCoreClockUpdate()
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2) by calling HAL API function HAL_RCC_GetHCLKFreq()
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3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
|
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Note: If you use this function to configure the system clock; then there
|
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is no need to call the 2 first functions listed above, since SystemCoreClock
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variable is updated automatically.
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*/
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uint32_t SystemCoreClock = 16000000UL;
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const uint32_t AHBPrescTable[16UL] = {0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 1UL, 2UL, 3UL, 4UL, 6UL, 7UL, 8UL, 9UL};
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const uint32_t APBPrescTable[8UL] = {0UL, 0UL, 0UL, 0UL, 1UL, 2UL, 3UL, 4UL};
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/**
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* @}
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||||
*/
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/** @addtogroup STM32G0xx_System_Private_FunctionPrototypes
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* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32G0xx_System_Private_Functions
|
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* @{
|
||||
*/
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/**
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* @brief Setup the microcontroller system.
|
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* @param None
|
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* @retval None
|
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*/
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void SystemInit(void)
|
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{
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/* Configure the Vector Table location add offset address ------------------*/
|
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#ifdef VECT_TAB_SRAM
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SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
|
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#else
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SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
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#endif
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}
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/**
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* @brief Update SystemCoreClock variable according to Clock Register Values.
|
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* The SystemCoreClock variable contains the core clock (HCLK), it can
|
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* be used by the user application to setup the SysTick timer or configure
|
||||
* other parameters.
|
||||
*
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* @note Each time the core clock (HCLK) changes, this function must be called
|
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* to update SystemCoreClock variable value. Otherwise, any configuration
|
||||
* based on this variable will be incorrect.
|
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*
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* @note - The system frequency computed by this function is not the real
|
||||
* frequency in the chip. It is calculated based on the predefined
|
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* constant and the selected clock source:
|
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*
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* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(**) / HSI division factor
|
||||
*
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* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(***)
|
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*
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* - If SYSCLK source is LSI, SystemCoreClock will contain the LSI_VALUE
|
||||
*
|
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* - If SYSCLK source is LSE, SystemCoreClock will contain the LSE_VALUE
|
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*
|
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* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(***)
|
||||
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
|
||||
*
|
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* (**) HSI_VALUE is a constant defined in stm32g0xx_hal_conf.h file (default value
|
||||
* 16 MHz) but the real value may vary depending on the variations
|
||||
* in voltage and temperature.
|
||||
*
|
||||
* (***) HSE_VALUE is a constant defined in stm32g0xx_hal_conf.h file (default value
|
||||
* 8 MHz), user has to ensure that HSE_VALUE is same as the real
|
||||
* frequency of the crystal used. Otherwise, this function may
|
||||
* have wrong result.
|
||||
*
|
||||
* - The result of this function could be not correct when using fractional
|
||||
* value for HSE crystal.
|
||||
*
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemCoreClockUpdate(void)
|
||||
{
|
||||
uint32_t tmp;
|
||||
uint32_t pllvco;
|
||||
uint32_t pllr;
|
||||
uint32_t pllsource;
|
||||
uint32_t pllm;
|
||||
uint32_t hsidiv;
|
||||
|
||||
/* Get SYSCLK source -------------------------------------------------------*/
|
||||
switch (RCC->CFGR & RCC_CFGR_SWS)
|
||||
{
|
||||
case RCC_CFGR_SWS_0: /* HSE used as system clock */
|
||||
SystemCoreClock = HSE_VALUE;
|
||||
break;
|
||||
|
||||
case (RCC_CFGR_SWS_1 | RCC_CFGR_SWS_0): /* LSI used as system clock */
|
||||
SystemCoreClock = LSI_VALUE;
|
||||
break;
|
||||
|
||||
case RCC_CFGR_SWS_2: /* LSE used as system clock */
|
||||
SystemCoreClock = LSE_VALUE;
|
||||
break;
|
||||
|
||||
case RCC_CFGR_SWS_1: /* PLL used as system clock */
|
||||
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN
|
||||
SYSCLK = PLL_VCO / PLLR
|
||||
*/
|
||||
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC);
|
||||
pllm = ((RCC->PLLCFGR & RCC_PLLCFGR_PLLM) >> RCC_PLLCFGR_PLLM_Pos) + 1UL;
|
||||
|
||||
if(pllsource == 0x03UL) /* HSE used as PLL clock source */
|
||||
{
|
||||
pllvco = (HSE_VALUE / pllm);
|
||||
}
|
||||
else /* HSI used as PLL clock source */
|
||||
{
|
||||
pllvco = (HSI_VALUE / pllm);
|
||||
}
|
||||
pllvco = pllvco * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> RCC_PLLCFGR_PLLN_Pos);
|
||||
pllr = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> RCC_PLLCFGR_PLLR_Pos) + 1UL);
|
||||
|
||||
SystemCoreClock = pllvco/pllr;
|
||||
break;
|
||||
|
||||
case 0x00000000U: /* HSI used as system clock */
|
||||
default: /* HSI used as system clock */
|
||||
hsidiv = (1UL << ((READ_BIT(RCC->CR, RCC_CR_HSIDIV))>> RCC_CR_HSIDIV_Pos));
|
||||
SystemCoreClock = (HSI_VALUE/hsidiv);
|
||||
break;
|
||||
}
|
||||
/* Compute HCLK clock frequency --------------------------------------------*/
|
||||
/* Get HCLK prescaler */
|
||||
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> RCC_CFGR_HPRE_Pos)];
|
||||
/* HCLK clock frequency */
|
||||
SystemCoreClock >>= tmp;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
@@ -0,0 +1,252 @@
|
||||
;******************************************************************************
|
||||
;* File Name : startup_stm32g0b1xx.s
|
||||
;* Author : MCD Application Team
|
||||
;* Description : STM32G0b1xx devices vector table for MDK-ARM toolchain.
|
||||
;* This module performs:
|
||||
;* - Set the initial SP
|
||||
;* - Set the initial PC == Reset_Handler
|
||||
;* - Set the vector table entries with the exceptions ISR address
|
||||
;* - Branches to __main in the C library (which eventually
|
||||
;* calls main()).
|
||||
;* After Reset the CortexM0 processor is in Thread mode,
|
||||
;* priority is Privileged, and the Stack is set to Main.
|
||||
;* <<< Use Configuration Wizard in Context Menu >>>
|
||||
;******************************************************************************
|
||||
;* @attention
|
||||
;*
|
||||
;* Copyright (c) 2020 STMicroelectronics. All rights reserved.
|
||||
;*
|
||||
;* This software component is licensed by ST under Apache License, Version 2.0,
|
||||
;* the "License"; You may not use this file except in compliance with the
|
||||
;* License. You may obtain a copy of the License at:
|
||||
;* opensource.org/licenses/Apache-2.0
|
||||
;*
|
||||
;******************************************************************************
|
||||
|
||||
; Amount of memory (in bytes) allocated for Stack
|
||||
; Tailor this value to your application needs
|
||||
; <h> Stack Configuration
|
||||
; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
|
||||
; </h>
|
||||
|
||||
Stack_Size EQU 0x00000400
|
||||
|
||||
AREA STACK, NOINIT, READWRITE, ALIGN=3
|
||||
Stack_Mem SPACE Stack_Size
|
||||
__initial_sp
|
||||
|
||||
|
||||
; <h> Heap Configuration
|
||||
; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
|
||||
; </h>
|
||||
|
||||
Heap_Size EQU 0x00000200
|
||||
|
||||
AREA HEAP, NOINIT, READWRITE, ALIGN=3
|
||||
__heap_base
|
||||
Heap_Mem SPACE Heap_Size
|
||||
__heap_limit
|
||||
|
||||
PRESERVE8
|
||||
THUMB
|
||||
|
||||
|
||||
; Vector Table Mapped to Address 0 at Reset
|
||||
AREA RESET, DATA, READONLY
|
||||
EXPORT __Vectors
|
||||
EXPORT __Vectors_End
|
||||
EXPORT __Vectors_Size
|
||||
|
||||
__Vectors DCD __initial_sp ; Top of Stack
|
||||
DCD Reset_Handler ; Reset Handler
|
||||
DCD NMI_Handler ; NMI Handler
|
||||
DCD HardFault_Handler ; Hard Fault Handler
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD SVC_Handler ; SVCall Handler
|
||||
DCD 0 ; Reserved
|
||||
DCD 0 ; Reserved
|
||||
DCD PendSV_Handler ; PendSV Handler
|
||||
DCD SysTick_Handler ; SysTick Handler
|
||||
|
||||
; External Interrupts
|
||||
DCD WWDG_IRQHandler ; Window Watchdog
|
||||
DCD PVD_VDDIO2_IRQHandler ; PVD through EXTI Line detect
|
||||
DCD RTC_TAMP_IRQHandler ; RTC through EXTI Line
|
||||
DCD FLASH_IRQHandler ; FLASH
|
||||
DCD RCC_CRS_IRQHandler ; RCC & CRS
|
||||
DCD EXTI0_1_IRQHandler ; EXTI Line 0 and 1
|
||||
DCD EXTI2_3_IRQHandler ; EXTI Line 2 and 3
|
||||
DCD EXTI4_15_IRQHandler ; EXTI Line 4 to 15
|
||||
DCD USB_UCPD1_2_IRQHandler ; USB, UCPD1 & UCPD2
|
||||
DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1
|
||||
DCD DMA1_Channel2_3_IRQHandler ; DMA1 Channel 2 and Channel 3
|
||||
DCD DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQHandler ; DMA1 Ch4 to Ch7, DMA2 Ch1 to Ch5 ,DMAMUX1 overrun
|
||||
DCD ADC1_COMP_IRQHandler ; ADC1, COMP1, COMP2 and COMP3
|
||||
DCD TIM1_BRK_UP_TRG_COM_IRQHandler ; TIM1 Break, Update, Trigger and Commutation
|
||||
DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
|
||||
DCD TIM2_IRQHandler ; TIM2
|
||||
DCD TIM3_TIM4_IRQHandler ; TIM3, TIM4
|
||||
DCD TIM6_DAC_LPTIM1_IRQHandler ; TIM6, DAC & LPTIM1
|
||||
DCD TIM7_LPTIM2_IRQHandler ; TIM7 & LPTIM2
|
||||
DCD TIM14_IRQHandler ; TIM14
|
||||
DCD TIM15_IRQHandler ; TIM15
|
||||
DCD TIM16_FDCAN_IT0_IRQHandler ; TIM16 & FDCAN1_IT0 & FDCAN2_IT0
|
||||
DCD TIM17_FDCAN_IT1_IRQHandler ; TIM17 & FDCAN1_IT1 & FDCAN2_IT1
|
||||
DCD I2C1_IRQHandler ; I2C1
|
||||
DCD I2C2_3_IRQHandler ; I2C2, I2C3
|
||||
DCD SPI1_IRQHandler ; SPI1
|
||||
DCD SPI2_3_IRQHandler ; SPI2, SPI3
|
||||
DCD USART1_IRQHandler ; USART1
|
||||
DCD USART2_LPUART2_IRQHandler ; USART2 & LPUART2
|
||||
DCD USART3_4_5_6_LPUART1_IRQHandler ; USART3, USART4, USART5, USART6, LPUART1
|
||||
DCD CEC_IRQHandler ; CEC
|
||||
|
||||
__Vectors_End
|
||||
|
||||
__Vectors_Size EQU __Vectors_End - __Vectors
|
||||
|
||||
AREA |.text|, CODE, READONLY
|
||||
|
||||
; Reset handler routine
|
||||
Reset_Handler PROC
|
||||
EXPORT Reset_Handler [WEAK]
|
||||
IMPORT __main
|
||||
IMPORT SystemInit
|
||||
LDR R0, =SystemInit
|
||||
BLX R0
|
||||
LDR R0, =__main
|
||||
BX R0
|
||||
ENDP
|
||||
|
||||
; Dummy Exception Handlers (infinite loops which can be modified)
|
||||
|
||||
NMI_Handler PROC
|
||||
EXPORT NMI_Handler [WEAK]
|
||||
B .
|
||||
ENDP
|
||||
HardFault_Handler\
|
||||
PROC
|
||||
EXPORT HardFault_Handler [WEAK]
|
||||
B .
|
||||
ENDP
|
||||
SVC_Handler PROC
|
||||
EXPORT SVC_Handler [WEAK]
|
||||
B .
|
||||
ENDP
|
||||
PendSV_Handler PROC
|
||||
EXPORT PendSV_Handler [WEAK]
|
||||
B .
|
||||
ENDP
|
||||
SysTick_Handler PROC
|
||||
EXPORT SysTick_Handler [WEAK]
|
||||
B .
|
||||
ENDP
|
||||
|
||||
Default_Handler PROC
|
||||
|
||||
EXPORT WWDG_IRQHandler [WEAK]
|
||||
EXPORT PVD_VDDIO2_IRQHandler [WEAK]
|
||||
EXPORT RTC_TAMP_IRQHandler [WEAK]
|
||||
EXPORT FLASH_IRQHandler [WEAK]
|
||||
EXPORT RCC_CRS_IRQHandler [WEAK]
|
||||
EXPORT EXTI0_1_IRQHandler [WEAK]
|
||||
EXPORT EXTI2_3_IRQHandler [WEAK]
|
||||
EXPORT EXTI4_15_IRQHandler [WEAK]
|
||||
EXPORT USB_UCPD1_2_IRQHandler [WEAK]
|
||||
EXPORT DMA1_Channel1_IRQHandler [WEAK]
|
||||
EXPORT DMA1_Channel2_3_IRQHandler [WEAK]
|
||||
EXPORT DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQHandler [WEAK]
|
||||
EXPORT ADC1_COMP_IRQHandler [WEAK]
|
||||
EXPORT TIM1_BRK_UP_TRG_COM_IRQHandler [WEAK]
|
||||
EXPORT TIM1_CC_IRQHandler [WEAK]
|
||||
EXPORT TIM2_IRQHandler [WEAK]
|
||||
EXPORT TIM3_TIM4_IRQHandler [WEAK]
|
||||
EXPORT TIM6_DAC_LPTIM1_IRQHandler [WEAK]
|
||||
EXPORT TIM7_LPTIM2_IRQHandler [WEAK]
|
||||
EXPORT TIM14_IRQHandler [WEAK]
|
||||
EXPORT TIM15_IRQHandler [WEAK]
|
||||
EXPORT TIM16_FDCAN_IT0_IRQHandler [WEAK]
|
||||
EXPORT TIM17_FDCAN_IT1_IRQHandler [WEAK]
|
||||
EXPORT I2C1_IRQHandler [WEAK]
|
||||
EXPORT I2C2_3_IRQHandler [WEAK]
|
||||
EXPORT SPI1_IRQHandler [WEAK]
|
||||
EXPORT SPI2_3_IRQHandler [WEAK]
|
||||
EXPORT USART1_IRQHandler [WEAK]
|
||||
EXPORT USART2_LPUART2_IRQHandler [WEAK]
|
||||
EXPORT USART3_4_5_6_LPUART1_IRQHandler [WEAK]
|
||||
EXPORT CEC_IRQHandler [WEAK]
|
||||
|
||||
|
||||
WWDG_IRQHandler
|
||||
PVD_VDDIO2_IRQHandler
|
||||
RTC_TAMP_IRQHandler
|
||||
FLASH_IRQHandler
|
||||
RCC_CRS_IRQHandler
|
||||
EXTI0_1_IRQHandler
|
||||
EXTI2_3_IRQHandler
|
||||
EXTI4_15_IRQHandler
|
||||
USB_UCPD1_2_IRQHandler
|
||||
DMA1_Channel1_IRQHandler
|
||||
DMA1_Channel2_3_IRQHandler
|
||||
DMA1_Ch4_7_DMA2_Ch1_5_DMAMUX1_OVR_IRQHandler
|
||||
ADC1_COMP_IRQHandler
|
||||
TIM1_BRK_UP_TRG_COM_IRQHandler
|
||||
TIM1_CC_IRQHandler
|
||||
TIM2_IRQHandler
|
||||
TIM3_TIM4_IRQHandler
|
||||
TIM6_DAC_LPTIM1_IRQHandler
|
||||
TIM7_LPTIM2_IRQHandler
|
||||
TIM14_IRQHandler
|
||||
TIM15_IRQHandler
|
||||
TIM16_FDCAN_IT0_IRQHandler
|
||||
TIM17_FDCAN_IT1_IRQHandler
|
||||
I2C1_IRQHandler
|
||||
I2C2_3_IRQHandler
|
||||
SPI1_IRQHandler
|
||||
SPI2_3_IRQHandler
|
||||
USART1_IRQHandler
|
||||
USART2_LPUART2_IRQHandler
|
||||
USART3_4_5_6_LPUART1_IRQHandler
|
||||
CEC_IRQHandler
|
||||
|
||||
B .
|
||||
|
||||
ENDP
|
||||
|
||||
ALIGN
|
||||
|
||||
;*******************************************************************************
|
||||
; User Stack and Heap initialization
|
||||
;*******************************************************************************
|
||||
IF :DEF:__MICROLIB
|
||||
|
||||
EXPORT __initial_sp
|
||||
EXPORT __heap_base
|
||||
EXPORT __heap_limit
|
||||
|
||||
ELSE
|
||||
|
||||
IMPORT __use_two_region_memory
|
||||
EXPORT __user_initial_stackheap
|
||||
|
||||
__user_initial_stackheap
|
||||
|
||||
LDR R0, = Heap_Mem
|
||||
LDR R1, =(Stack_Mem + Stack_Size)
|
||||
LDR R2, = (Heap_Mem + Heap_Size)
|
||||
LDR R3, = Stack_Mem
|
||||
BX LR
|
||||
|
||||
ALIGN
|
||||
|
||||
ENDIF
|
||||
|
||||
END
|
||||
|
||||
;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****
|
||||
@@ -0,0 +1,290 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file system_stm32g0xx.c
|
||||
* @author MCD Application Team
|
||||
* @brief CMSIS Cortex-M0+ Device Peripheral Access Layer System Source File
|
||||
*
|
||||
* This file provides two functions and one global variable to be called from
|
||||
* user application:
|
||||
* - SystemInit(): This function is called at startup just after reset and
|
||||
* before branch to main program. This call is made inside
|
||||
* the "startup_stm32g0xx.s" file.
|
||||
*
|
||||
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
|
||||
* by the user application to setup the SysTick
|
||||
* timer or configure other parameters.
|
||||
*
|
||||
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
|
||||
* be called whenever the core clock is changed
|
||||
* during program execution.
|
||||
*
|
||||
* After each device reset the HSI (8 MHz then 16 MHz) is used as system clock source.
|
||||
* Then SystemInit() function is called, in "startup_stm32g0xx.s" file, to
|
||||
* configure the system clock before to branch to main program.
|
||||
*
|
||||
* This file configures the system clock as follows:
|
||||
*=============================================================================
|
||||
*-----------------------------------------------------------------------------
|
||||
* System Clock source | HSI
|
||||
*-----------------------------------------------------------------------------
|
||||
* SYSCLK(Hz) | 16000000
|
||||
*-----------------------------------------------------------------------------
|
||||
* HCLK(Hz) | 16000000
|
||||
*-----------------------------------------------------------------------------
|
||||
* AHB Prescaler | 1
|
||||
*-----------------------------------------------------------------------------
|
||||
* APB Prescaler | 1
|
||||
*-----------------------------------------------------------------------------
|
||||
* HSI Division factor | 1
|
||||
*-----------------------------------------------------------------------------
|
||||
* PLL_M | 1
|
||||
*-----------------------------------------------------------------------------
|
||||
* PLL_N | 8
|
||||
*-----------------------------------------------------------------------------
|
||||
* PLL_P | 7
|
||||
*-----------------------------------------------------------------------------
|
||||
* PLL_Q | 2
|
||||
*-----------------------------------------------------------------------------
|
||||
* PLL_R | 2
|
||||
*-----------------------------------------------------------------------------
|
||||
* Require 48MHz for RNG | Disabled
|
||||
*-----------------------------------------------------------------------------
|
||||
*=============================================================================
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* <h2><center>© Copyright (c) 2018 STMicroelectronics.
|
||||
* All rights reserved.</center></h2>
|
||||
*
|
||||
* This software component is licensed by ST under Apache License, Version 2.0,
|
||||
* the "License"; You may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at:
|
||||
* opensource.org/licenses/Apache-2.0
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/** @addtogroup CMSIS
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup stm32g0xx_system
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32G0xx_System_Private_Includes
|
||||
* @{
|
||||
*/
|
||||
|
||||
#include "stm32g0xx.h"
|
||||
|
||||
#if !defined (HSE_VALUE)
|
||||
#define HSE_VALUE (8000000UL) /*!< Value of the External oscillator in Hz */
|
||||
#endif /* HSE_VALUE */
|
||||
|
||||
#if !defined (HSI_VALUE)
|
||||
#define HSI_VALUE (16000000UL) /*!< Value of the Internal oscillator in Hz*/
|
||||
#endif /* HSI_VALUE */
|
||||
|
||||
#if !defined (LSI_VALUE)
|
||||
#define LSI_VALUE (32000UL) /*!< Value of LSI in Hz*/
|
||||
#endif /* LSI_VALUE */
|
||||
|
||||
#if !defined (LSE_VALUE)
|
||||
#define LSE_VALUE (32768UL) /*!< Value of LSE in Hz*/
|
||||
#endif /* LSE_VALUE */
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32G0xx_System_Private_TypesDefinitions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32G0xx_System_Private_Defines
|
||||
* @{
|
||||
*/
|
||||
|
||||
/************************* Miscellaneous Configuration ************************/
|
||||
/*!< Uncomment the following line if you need to relocate your vector Table in
|
||||
Internal SRAM. */
|
||||
/* #define VECT_TAB_SRAM */
|
||||
#define VECT_TAB_OFFSET 0x0U /*!< Vector Table base offset field.
|
||||
This value must be a multiple of 0x100. */
|
||||
/******************************************************************************/
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32G0xx_System_Private_Macros
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32G0xx_System_Private_Variables
|
||||
* @{
|
||||
*/
|
||||
/* The SystemCoreClock variable is updated in three ways:
|
||||
1) by calling CMSIS function SystemCoreClockUpdate()
|
||||
2) by calling HAL API function HAL_RCC_GetHCLKFreq()
|
||||
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
|
||||
Note: If you use this function to configure the system clock; then there
|
||||
is no need to call the 2 first functions listed above, since SystemCoreClock
|
||||
variable is updated automatically.
|
||||
*/
|
||||
uint32_t SystemCoreClock = 16000000UL;
|
||||
|
||||
const uint32_t AHBPrescTable[16UL] = {0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 0UL, 1UL, 2UL, 3UL, 4UL, 6UL, 7UL, 8UL, 9UL};
|
||||
const uint32_t APBPrescTable[8UL] = {0UL, 0UL, 0UL, 0UL, 1UL, 2UL, 3UL, 4UL};
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32G0xx_System_Private_FunctionPrototypes
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32G0xx_System_Private_Functions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief Setup the microcontroller system.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemInit(void)
|
||||
{
|
||||
/* Configure the Vector Table location add offset address ------------------*/
|
||||
#ifdef VECT_TAB_SRAM
|
||||
SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
|
||||
#else
|
||||
SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
|
||||
#endif
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Update SystemCoreClock variable according to Clock Register Values.
|
||||
* The SystemCoreClock variable contains the core clock (HCLK), it can
|
||||
* be used by the user application to setup the SysTick timer or configure
|
||||
* other parameters.
|
||||
*
|
||||
* @note Each time the core clock (HCLK) changes, this function must be called
|
||||
* to update SystemCoreClock variable value. Otherwise, any configuration
|
||||
* based on this variable will be incorrect.
|
||||
*
|
||||
* @note - The system frequency computed by this function is not the real
|
||||
* frequency in the chip. It is calculated based on the predefined
|
||||
* constant and the selected clock source:
|
||||
*
|
||||
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(**) / HSI division factor
|
||||
*
|
||||
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(***)
|
||||
*
|
||||
* - If SYSCLK source is LSI, SystemCoreClock will contain the LSI_VALUE
|
||||
*
|
||||
* - If SYSCLK source is LSE, SystemCoreClock will contain the LSE_VALUE
|
||||
*
|
||||
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(***)
|
||||
* or HSI_VALUE(*) multiplied/divided by the PLL factors.
|
||||
*
|
||||
* (**) HSI_VALUE is a constant defined in stm32g0xx_hal_conf.h file (default value
|
||||
* 16 MHz) but the real value may vary depending on the variations
|
||||
* in voltage and temperature.
|
||||
*
|
||||
* (***) HSE_VALUE is a constant defined in stm32g0xx_hal_conf.h file (default value
|
||||
* 8 MHz), user has to ensure that HSE_VALUE is same as the real
|
||||
* frequency of the crystal used. Otherwise, this function may
|
||||
* have wrong result.
|
||||
*
|
||||
* - The result of this function could be not correct when using fractional
|
||||
* value for HSE crystal.
|
||||
*
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemCoreClockUpdate(void)
|
||||
{
|
||||
uint32_t tmp;
|
||||
uint32_t pllvco;
|
||||
uint32_t pllr;
|
||||
uint32_t pllsource;
|
||||
uint32_t pllm;
|
||||
uint32_t hsidiv;
|
||||
|
||||
/* Get SYSCLK source -------------------------------------------------------*/
|
||||
switch (RCC->CFGR & RCC_CFGR_SWS)
|
||||
{
|
||||
case RCC_CFGR_SWS_0: /* HSE used as system clock */
|
||||
SystemCoreClock = HSE_VALUE;
|
||||
break;
|
||||
|
||||
case (RCC_CFGR_SWS_1 | RCC_CFGR_SWS_0): /* LSI used as system clock */
|
||||
SystemCoreClock = LSI_VALUE;
|
||||
break;
|
||||
|
||||
case RCC_CFGR_SWS_2: /* LSE used as system clock */
|
||||
SystemCoreClock = LSE_VALUE;
|
||||
break;
|
||||
|
||||
case RCC_CFGR_SWS_1: /* PLL used as system clock */
|
||||
/* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN
|
||||
SYSCLK = PLL_VCO / PLLR
|
||||
*/
|
||||
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC);
|
||||
pllm = ((RCC->PLLCFGR & RCC_PLLCFGR_PLLM) >> RCC_PLLCFGR_PLLM_Pos) + 1UL;
|
||||
|
||||
if(pllsource == 0x03UL) /* HSE used as PLL clock source */
|
||||
{
|
||||
pllvco = (HSE_VALUE / pllm);
|
||||
}
|
||||
else /* HSI used as PLL clock source */
|
||||
{
|
||||
pllvco = (HSI_VALUE / pllm);
|
||||
}
|
||||
pllvco = pllvco * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> RCC_PLLCFGR_PLLN_Pos);
|
||||
pllr = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> RCC_PLLCFGR_PLLR_Pos) + 1UL);
|
||||
|
||||
SystemCoreClock = pllvco/pllr;
|
||||
break;
|
||||
|
||||
case 0x00000000U: /* HSI used as system clock */
|
||||
default: /* HSI used as system clock */
|
||||
hsidiv = (1UL << ((READ_BIT(RCC->CR, RCC_CR_HSIDIV))>> RCC_CR_HSIDIV_Pos));
|
||||
SystemCoreClock = (HSI_VALUE/hsidiv);
|
||||
break;
|
||||
}
|
||||
/* Compute HCLK clock frequency --------------------------------------------*/
|
||||
/* Get HCLK prescaler */
|
||||
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> RCC_CFGR_HPRE_Pos)];
|
||||
/* HCLK clock frequency */
|
||||
SystemCoreClock >>= tmp;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
Reference in new issue
Block a user