C STM32F4发现-写入/读取闪存

这是我在这里的第一篇文章，如果格式或某些东西有问题，请道歉。按照我们学院的建议，我成功地编写和阅读了STM32F4发现的闪存（两篇文章的解释方式相同）：

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提前感谢您的帮助。

感谢@phyloflash，我得到了答案。调用

HAL_FLASH_Program

时，指定要写入的数据的大小以及该数据的第一个字节的地址。 在我的例子中，

HAL\u FLASH\u程序（TYPEPROGRAM\u WORD，&userConfig[0]，data）

一个单词表示4个字节，因此写入了

userConfig

的前4个字节。这也意味着定义为

uint8_t data

的参数必须与要写入的数据大小一致，因此它应该是

uint32_t data

我修改了代码以考虑这些因素。以下代码已被证明有效：

//data type have to be consistent with the TYPEPROGRAM, i.e:
//TYPEPROGRAM_BYTE uint8_t data
//TYPEPROGRAM_HALFWORD uint16_t data
//TYPEPROGRAM_WORD uint32_t data
//TYPEPROGRAM_DOUBLEWORD uint64_t data
void Write_Flash(uint32_t data[],uint8_t flashTypeProgram)

{
     uint8_t addressGap;
     HAL_FLASH_Unlock();
     __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGSERR );
     FLASH_Erase_Sector(FLASH_SECTOR_6, VOLTAGE_RANGE_3);
     for (i=0;i<64/pow(2, flashTypeProgram);i++)
     {
         addressGap=pow(2, flashTypeProgram)*i;
         HAL_FLASH_Program(flashTypeProgram, &userConfig[0]+addressGap, data[i]);
     }
     HAL_FLASH_Lock();
     //TYPEPROGRAM_BYTE        Program byte (8-bit) at a specified address              $0
     //TYPEPROGRAM_HALFWORD    Program a half-word (16-bit) at a specified address      $1
     //TYPEPROGRAM_WORD        Program a word (32-bit) at a specified address           $2
     //TYPEPROGRAM_DOUBLEWORD  Program a double word (64-bit) at a specified address    $3
}
[...]
  flashTypeProgram=TYPEPROGRAM_WORD;
  dataSize=(sizeof dataBuffer) / (sizeof *dataBuffer);
  for (i=0;i<dataSize;i++) {
      dataBuffer[i]=0x1010101;  //0x1010101 puts 1 in each byte of userConfig
  }
  Write_Flash(dataBuffer,flashTypeProgram);

//数据类型必须与TYPEPROGRAM一致，即：
//类型程序字节uint8数据
//类型程序半字uint16数据
//类型程序字uint32数据
//类型程序双字uint64数据
无效写入闪存（uint32数据[]，uint8闪存类型程序）
{
uint8_t地址间隙；
HAL_FLASH_Unlock（）；
__HAL_FLASH_CLEAR_标志（FLASH_标志| EOP | FLASH_标志| Oper | FLASH_标志| WRPERR | FLASH_标志| FLASH_标志| PGSERR）；
闪存擦除扇区（闪存扇区6，电压范围3）；
对于（i=0；据我所知，NAND闪存设备对单个写入的大小有一些限制。闪存必须以扇区大小而不是字节大小写入（它不是字节可寻址的）。因此，我建议您尝试写入1个以上的字节，并尝试看看是否成功。另请参阅
__attribute__((__section__(".user_data"))) const char userConfig[64];
[...]
void Write_Flash(uint8_t data, uint8_t i)
    {
         HAL_FLASH_Unlock();
         __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGSERR );
         FLASH_Erase_Sector(FLASH_SECTOR_6, VOLTAGE_RANGE_3);
         HAL_FLASH_Program(TYPEPROGRAM_WORD, &userConfig[i], data);
         HAL_FLASH_Lock();
    }
[...]
dataSize=(sizeof dataBuffer) / (sizeof *dataBuffer);
for (i=0;i<dataSize;i++) {
      dataBuffer[i]=i+1;
      Write_Flash(dataBuffer[i],i);
  }

//data type have to be consistent with the TYPEPROGRAM, i.e:
//TYPEPROGRAM_BYTE uint8_t data
//TYPEPROGRAM_HALFWORD uint16_t data
//TYPEPROGRAM_WORD uint32_t data
//TYPEPROGRAM_DOUBLEWORD uint64_t data
void Write_Flash(uint32_t data[],uint8_t flashTypeProgram)

{
     uint8_t addressGap;
     HAL_FLASH_Unlock();
     __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGSERR );
     FLASH_Erase_Sector(FLASH_SECTOR_6, VOLTAGE_RANGE_3);
     for (i=0;i<64/pow(2, flashTypeProgram);i++)
     {
         addressGap=pow(2, flashTypeProgram)*i;
         HAL_FLASH_Program(flashTypeProgram, &userConfig[0]+addressGap, data[i]);
     }
     HAL_FLASH_Lock();
     //TYPEPROGRAM_BYTE        Program byte (8-bit) at a specified address              $0
     //TYPEPROGRAM_HALFWORD    Program a half-word (16-bit) at a specified address      $1
     //TYPEPROGRAM_WORD        Program a word (32-bit) at a specified address           $2
     //TYPEPROGRAM_DOUBLEWORD  Program a double word (64-bit) at a specified address    $3
}
[...]
  flashTypeProgram=TYPEPROGRAM_WORD;
  dataSize=(sizeof dataBuffer) / (sizeof *dataBuffer);
  for (i=0;i<dataSize;i++) {
      dataBuffer[i]=0x1010101;  //0x1010101 puts 1 in each byte of userConfig
  }
  Write_Flash(dataBuffer,flashTypeProgram);