ucos 中执行 STMFLASH_Write 失败

jianminha · 发表于 2019-5-9 22:53:43

程序运行在407中在ucos未启动时  STMFLASH_Write  可以正常对FLASH 写数据。  ucos任务执行后执行STMFLASH_Write 始终失败！
void STMFLASH_Write(u32 WriteAddr,u32 *pBuffer,u32 NumToWrite)
{
  FLASH_Status status = FLASH_COMPLETE;
u32 addrx=0;
u32 endaddr=0;
  if(WriteAddr<STM32_FLASH_BASE||WriteAddr%4)return; //·Ç·¨µØÖ·
FLASH_Unlock();                                  //½âËø
  FLASH_DataCacheCmd(DISABLE);//FLASH²Á³ýÆÚ¼ä,±ØÐë½ûÖ¹Êý¾Ý»º´æ

addrx=WriteAddr;             //Ð´ÈëµÄÆðÊ¼µØÖ·
endaddr=WriteAddr+NumToWrite*4; //Ð´ÈëµÄ½áÊøµØÖ·
if(addrx<0X1FFF0000)          //Ö»ÓÐÖ÷´æ´¢Çø,²ÅÐèÒªÖ´ÐÐ²Á³ý²Ù×÷!!
{
      while(addrx<endaddr)       //É¨ÇåÒ»ÇÐÕÏ°.(¶Ô·ÇFFFFFFFFµÄµØ·½,ÏÈ²Á³ý)
      {
         if(STMFLASH_ReadWord(addrx)!=0XFFFFFFFF)//ÓÐ·Ç0XFFFFFFFFµÄµØ·½,Òª²Á³ýÕâ¸öÉÈÇø
         {
            status=FLASH_EraseSector(STMFLASH_GetFlashSector(addrx),VoltageRange_3);//VCC=2.7~3.6VÖ®¼ä!!
            if(status!=FLASH_COMPLETE)break; //·¢Éú´íÎóÁË
         }else addrx+=4;
      }
}
if(status==FLASH_COMPLETE)
{
      while(WriteAddr<endaddr)//Ð´Êý¾Ý
      {
         if(FLASH_ProgramWord(WriteAddr,*pBuffer)!=FLASH_COMPLETE)//Ð´ÈëÊý¾Ý
         {
            break; //Ð´ÈëÒì³£
         }
         WriteAddr+=4;
         pBuffer++;
      }
}
  FLASH_DataCacheCmd(ENABLE); //FLASH²Á³ý½áÊø,¿ªÆôÊý¾Ý»º´æ
FLASH_Lock();//ÉÏËø
}