新手学STM32F,请大侠给些思路和方法

1万 · 2020-10-11 13:10

2万 · 2020-10-11 13:13

楼主详细说说怎么回事啊，这么说太笼统了

1万 · 2020-10-11 13:16

先自己运行例程，看结果

2万 · 2020-10-11 13:19

只是学编程的话，那就根据数据手册看程序啊。

1万 · 2020-10-11 13:24

新手看数据手册之类的资料，没太多帮助，不过可以看看STM的简单介绍。然后直接买开发板，先动手搞搞，然后在看资料，会比较容易理解，且**深刻。

2万 · 2020-10-11 13:28

读代码调试

2万 · 2020-10-11 13:32

多在实践中就成长的快

2万 · 2020-10-11 13:36

一边用一边学这样上手快

2万 · 2020-10-11 13:41

楼上正解在加点压力更快

2万 · 2020-10-11 13:44

找个程序看不懂了就百度

2万 · 2020-10-11 13:47

多看程序多读读寄存器

1万 · 2020-10-11 13:50

死皮赖脸的问明白人

1万 · 2020-10-11 13:53

最重要的就是先别上来就看书

1万 · 2020-10-11 14:02

嗯，预料中的结果，多谢大家啦

1万 · 2020-10-11 14:05

往里写数据时有时会死机

1万 · 2020-10-11 14:08

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 · 2020-10-11 14:13

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 · 2020-10-11 14:16

主要看下，地址是否对齐和偶数地址开始写数据！

1万 · 2020-10-11 14:19

#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 · 2020-10-11 14:22

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