STM32 写flash操作，达人请进

只看该作者 · 2010-4-14 16:49

最近用STM32F103做了个项目
里面有温度定标数据需要写到flash里
于是写了一段向flash写多个字节的函数
请高手们看看有没有什么问题
编译链接都通过了
还没有在线调试过

代码如下：
/******************************************************************
* 名称：FLASH_WriteNByte
* 功能：指定FLASH起始地址，写多字节数据
* 入口参数：addr  指定的起始地址
* dat_buf 待写入的数据缓冲区指针
*       no  要写入数据个数
* 出口参数：返回0时表示操作错误  返回1表示操作成功
******************************************************************/
u8  FLASH_WriteNByte(u32 addr, u8  *dat_buf, u8 no)
{
   FLASH_Unlock();//Unlock the Flash
   while(1)
   {
      FLASH_ProgramHalfWord(addr, *dat_buf);
      if(FLASH_GetStatus()==FLASH_COMPLETE)  //获取Flash状态
      {
         no--;
         addr++;
         *dat_buf++;
      }
   else
      {
         return 0;

         }
      if(no==0) break;
   }
FLASH_Lock();
return 1;
}

/*******************************************************************************
* Function Name  : FLASH_ProgramHalfWord
* Description : Programs a half word at a specified address.
* Input       : - Address: specifies the address to be programmed.
*                - Data: specifies the data to be programmed.
* Output       : None
* Return       : FLASH Status: The returned value can be: FLASH_BUSY,
*                FLASH_ERROR_PG, FLASH_ERROR_WRP, FLASH_COMPLETE or
*                FLASH_TIMEOUT.
*******************************************************************************/
FLASH_Status FLASH_ProgramHalfWord(u32 Address, u16 Data)
{
  FLASH_Status status = FLASH_COMPLETE;
  /* Check the parameters */
  assert_param(IS_FLASH_ADDRESS(Address));
  /* Wait for last operation to be completed */
  status = FLASH_WaitForLastOperation(ProgramTimeout);

  if(status == FLASH_COMPLETE)
  {
/* if the previous operation is completed, proceed to program the new data */
FLASH->CR |= CR_PG_Set;

*(vu16*)Address = Data;
/* Wait for last operation to be completed */
status = FLASH_WaitForLastOperation(ProgramTimeout);
if(status != FLASH_BUSY)
{
   /* if the program operation is completed, disable the PG Bit */
   FLASH->CR &= CR_PG_Reset;
}
  }
  /* Return the Program Status */
  return status;
}