#include "util.h"
#include <ctype.h>

float Bytes2Float (char * data)
{
	Float ff ;
	ff.byte[0] = data[1];
	ff.byte[1] = data[0];
	ff.byte[2] = data[3];
	ff.byte[3] = data[2];
	return ff.data;
}

uint32_t Bytes2Int (char * data)
{
	Int I;
	I.byte[0] = data[1];
	I.byte[1] = data[0];
	I.byte[2] = data[3];
	I.byte[3] = data[2];
	return I.data;
}

int16_t Bytes2Int16 (char * data)
{
	Int16Tobyte int16_byte;
	int16_byte.byte[0] = data[1];
	int16_byte.byte[1] = data[0];
	return int16_byte.value;
}



// -----------------------------------------------------------------
// 函数功能: hex字符串转byte数组
// 函数名称: hexbyte_to_hex_str
// 参数1   : src 源字符串
// 参数2   : obj 目标字节数组
// 说明    : "01020304" --> {0x01,0x03,0x03,x04} 或 "01 02 03 04"->{0x01,0x03,0x03,x04}
// 返回值  : 1 成功
// -----------------------------------------------------------------
int hexstr_to_hexbyte (char *src, char *obj, uint16_t length)
{
	char h1, h2;
	uint8_t  s1, s2;
	int i;
	length = length / 2;
	for (i = 0; i < length; i++)
	{
		h1 = src[2 * i];
		h2 = src[2 * i + 1];

		s1 = toupper (h1) - 0x30;
		if (s1 > 9)
			s1 -= 7;
		s2 = toupper (h2) - 0x30;
		if (s2 > 9)
			s2 -= 7;
		obj[i] = s1 * 16 + s2;
	}
	return length;
}


// 754 转float
float float_to_iee754 (float ff1,char * data)
{
	Float ff;
	ff.data = ff1;
	data[0] = ff.byte[3];
	data[1] = ff.byte[2];
	data[2] = ff.byte[1];
	data[3] = ff.byte[0];

	return ff.data;
}



// 754 转float
float iee754_to_float (char * data)
{
	Float ff;
	ff.byte[3] = data[0];
	ff.byte[2] = data[1];
	ff.byte[1] = data[2];
	ff.byte[0] = data[3];
	return ff.data;
}



uint32_t byte_to_Inverse(char * data)
{
	Int I;
	I.byte[0] = data[3];
	I.byte[1] = data[2];
	I.byte[2] = data[1];
	I.byte[3] = data[0];
	return I.data;
}