STM32F030C8 Flash存储

只看该作者 · 2017-5-16 13:01

@@香水城
这个写Flash，只有擦除后第一次可以写（就是能把初始值成功写入），后面在程序里调用就失败，帮忙看看怎么解决？谢谢

u8bit write_para_to_flash(u16bit wVal, u8bit bType)
{
  FLASH_Status temp_stat;
  u32bit temp_addr = BASE_ADD;
  FLASH_Unlock();                                        // Flash½âËø£¬ÔÊÐí²Ù×÷Ïà¹ØµÄ¼Ä´æÆ÷
  temp_addr = temp_addr + (bType << 4);
  temp_stat = FLASH_ProgramHalfWord(temp_addr,wVal);
  FLASH_Lock();
  if(temp_stat != FLASH_COMPLETE)
return FALSE;
  else
  {
wParaArray[bType] = wVal;
return TRUE;
  }
}
void mem_init(void)
{
  u8bit  bIndex;
  for(bIndex = 0; bIndex < MAX_PARA_NUM; bIndex++)
  {
wParaArray[bIndex] = get_para_from_flash(bIndex);
  }
  if(wParaArray[MEM_WRITTEN] != WRITE_VAL)
  {
wParaArray[BaudOffset] = DEFAULT_BAUD;
wParaArray[NEG_Offset] = DEFAULT_NEG_VAL;
wParaArray[POS_Offset] = DEFAULT_POS_VAL;
wParaArray[MEM_WRITTEN] = WRITE_VAL;
for(bIndex = 0; bIndex < MAX_PARA_NUM; bIndex++)
{
   write_para_to_flash(wParaArray[bIndex], bIndex);
}
  }
}