往里写数据时有时会死机

1万 · 2017-9-25 23:29

我用UCOS2 FLASH模拟EEPROM,往里写数据时有时会死机，请教大侠帮忙分析原因

1万 · 2017-9-25 23:30

楼主程序可以公开吗？贴程序看下吧，这么说看不出什么原因

1万 · 2017-9-25 23:31

void EE_Program(void)
{
      u32 EraseCounter = 0x00;
      u32 NbrOfPage = 0x00;
      FLASH_Status FLASHStatus;
      u32 Address = EE_StartAddr;
      u32 *pData;
      u16 i;
      u32 Data;


//       OS_EXIT_CRITICAL();

      FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //开关预取指缓存
      FLASH_SetLatency(FLASH_Latency_2);  //设置代码延时2周期

      FLASH_Unlock();       //解锁

      NbrOfPage = (EE_EndAddr - EE_StartAddr) / FLASH_PAGE_SIZE;
      //清除FLASH待处理标志位
      FLASH_ClearFlag(FLASH_FLAG_BSY | FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);

      //摖除页面
      FLASHStatus = FLASH_COMPLETE;
      for ( EraseCounter = 0; (EraseCounter < NbrOfPage) && (FLASHStatus == FLASH_COMPLETE); EraseCounter++ ) {
            FLASHStatus = FLASH_ErasePage(EE_StartAddr + (FLASH_PAGE_SIZE * EraseCounter));
      }

      Address = EE_StartAddr;
      pData = (u32 *)&Ux[0][1];
      FLASHStatus = FLASH_ProgramWord(Address, *pData);

      Address+=4;
      pData = (u32 *)&Ux[1][1];
      FLASHStatus = FLASH_ProgramWord(Address, *pData);

      Address+=4;
      pData = (u32 *)&Ux[2][1];
      FLASHStatus = FLASH_ProgramWord(Address, *pData);

      Address+=4;
      pData = (u32 *)&Ix[0][1];
      FLASHStatus = FLASH_ProgramWord(Address, *pData);

      Address+=4;
      pData = (u32 *)&Ix[1][1];
      FLASHStatus = FLASH_ProgramWord(Address, *pData);

      Address+=4;
      pData = (u32 *)&Ix[2][1];
      FLASHStatus = FLASH_ProgramWord(Address, *pData);

      Address+=4;
      pData = (u32 *)&Ix[3][1];
      FLASHStatus = FLASH_ProgramWord(Address, *pData);

      Address+=4;
      Data = Sys.LdAct;
      Data <<=8;
      Data |= Sys.LdActT;
      Data <<=8;
      Data |= Sys.LdVar;
      FLASHStatus = FLASH_ProgramWord(Address, Data);

      Address+=4;
      Data = Sys.In;
      Data <<=8;
      Data |= Sys.Bps;
      Data <<=8;
      Data |= Sys.InT;
      FLASHStatus = FLASH_ProgramWord(Address, Data);

      Address+=4;
      Data = Sys.Un;
      Data <<=8;
      Data |= Sys.UlT;
      Data <<=8;
      Data |= Sys.ChT;
      Data <<=8;
      Data |= Sys.ChT_H;
      FLASHStatus = FLASH_ProgramWord(Address, Data);

      Address+=4;
      Data = Sys.Addr[0];
      Data <<=16;
      Data |= Sys.Addr[1];
      FLASHStatus = FLASH_ProgramWord(Address, Data);

      Address+=4;
      Data = Sys.Uh;
      Data <<=16;
      Data |= Sys.Ul;
      FLASHStatus = FLASH_ProgramWord(Address,Data);

      Address+=4;
      Data = Sys.Uh;
      Data <<=16;
      Data |= Sys.Ul;
      FLASHStatus = FLASH_ProgramWord(Address,Data);

      for(i=0;i<100;i++) {
            Address+=4;
            Data = ErrData[i].ErrTime.Sec;
            Data <<=8;
            Data |= ErrData[i].ErrTime.Min;
            Data <<=8;
            Data |= ErrData[i].ErrTime.Hour;
            Data <<=8;
            Data |= ErrData[i].ErrTime.Day;
            FLASHStatus = FLASH_ProgramWord(Address,Data);

            Address+=4;
            Data = ErrData[i].ErrTime.Week;
            Data <<=8;
            Data |= ErrData[i].ErrTime.Month;
            Data <<=8;
            Data |= ErrData[i].ErrTime.Year;
            Data <<=8;
            Data = ErrData[i].ErrType;
            FLASHStatus = FLASH_ProgramWord(Address,Data);

            Address+=4;
            Data = ErrData[i].ErrVar;
            FLASHStatus = FLASH_ProgramWord(Address,Data);
      }

      FLASH_Lock();

//       OS_ENTER_CRITICAL();
}

1万 · 2017-9-25 23:33

主要看下，地址是否对齐和偶数地址开始写数据！

1万 · 2017-9-25 23:35

#define EE_StartAddr ((u32)0x0800F000) //必须0x8000000+代码大小以上 73576 1b0
#define EE_EndAddr ((u32)0x08010000)
#define FLASH_PAGE_SIZE ((u16)1024)

2万 · 2017-9-25 23:38

什么意思？不是很明白你说的什么，能再解释一下这个现象吗

1万 · 2017-9-25 23:40

唉，还是没有什么结果，算了，先结贴吧，多谢大家啦