MC_Bootloader/user/Rom_check.c

#include "Rom_check.h"

#include "stm32f1xx_hal.h"

#include "flash_if.h"
#include "RefreshMenu.h"
#include "crc.h"
#include "bin_check.h"

uint8_t  RomCheck(void)
{
	uint32_t  index,crc_result;
	uint32_t  romSize_byte,romSize_words;
	
	 __HAL_CRC_DR_RESET(&hcrc);

	//romSize_byte = 0x35c0;
	
	romSize_byte = (downLoad.packageSize - 4 - 128);//文件头需要减掉
	romSize_words = romSize_byte / 4;
	
	for(index = 0; index < romSize_words; index++)
  {
    CRC->DR = (*((uint32_t *)APPLICATION_ADDRESS + index));
  }
  crc_result = CRC->DR;
	
	//固件校验结果与bin末尾crc32结果对比
	if(crc_result != *(uint32_t *)(APPLICATION_ADDRESS + romSize_byte))
	{
		return ERROR;
	}
	
	crc_result = (Crc32_Cal[0]) + (Crc32_Cal[1] << 8) + (Crc32_Cal[2] << 16) + (Crc32_Cal[3] << 24);
	//bin文件头解密后的crc32与bin末尾crc32对比
	if(crc_result != *(uint32_t *)(APPLICATION_ADDRESS + romSize_byte))
	{
		return ERROR;
	}
	
	return SUCCESS ;
}