在RT-Thread里面对内置Flash的擦写问题

发布于 2014-09-26 09:52:52 浏览：3849 订阅该版

各位，在RTT启动之后，再对Flash进行擦写，需要注意什么吗？为什么我这擦、写都不成功？有参考例子吗？
补充：在BOOT里面擦写没有问题，BOOT里面没有RTT。
1）擦除失败
```FLASH_If_Erase(APPLICATION_ADDRESS);//擦写失败```
2）写也失败
```uint32_t FLASH_If_Write(__IO uint32_t* FlashAddress, uint32_t* Data ,uint32_t DataLength)
{
  uint32_t i = 0;

for (i = 0; (i < DataLength) && (*FlashAddress <= (USER_FLASH_END_ADDRESS-4)); i++)
  {
    /* Device voltage range supposed to be [2.7V to 3.6V], the operation will
       be done by word */ 
    if (FLASH_ProgramWord(*FlashAddress, *(uint32_t*)(Data+i)) == FLASH_COMPLETE)
    {
     /* Check the written value */
      if (*(uint32_t*)*FlashAddress != *(uint32_t*)(Data+i))
      {
        /* Flash content doesn't match SRAM content */
		rt_kprintf("0x%x---0x%x
",*(uint32_t*)*FlashAddress ,*(uint32_t*)(Data+i));
        return(2);
      }
      /* Increment FLASH destination address */
      *FlashAddress += 4;
    }
    else
    {
      /* Error occurred while writing data in Flash memory */
      return (1);
    }
  }

return (0);
}```