探索者STM32F407，如何将SD卡全片擦除？

新手求助 · 发表于 2015-12-28 17:13:05

我现在使用的是探索者开发板STM32F407，想要实现SD卡的全片擦除，但是探索者没有相关的程序源码，我在论坛上只能找到MINI开发板的程序，如下：
void SD_Format()
{
u8 r1;
u32 sector;
if(SD_Type!=SD_TYPE_V2HC)
      sector = sd_size * 512;//转换为字节地址
if(SD_Type == SD_TYPE_MMC)
{
      do
      {
         r1=SD_SendCmd(CMD35,0,0X01);//设置擦除首地址
         r1=SD_SendCmd(CMD36,sector,0X01);//设置擦除最后地址
      }while(r1!=0 && sector--);
      while(1);
}
else
{
      r1=SD_SendCmd(CMD32,0,0X01);//
      r1=SD_SendCmd(CMD33,sector,0X01);//
}

r1=SD_SendCmd(CMD38,0,0x01);// 开始擦除
if(r1 == 0)
{
      ;
}
}

在探索者开发板的资料中，我找不出与SD_SendCmd()函数功能相同的函数，特求助各位大神以及原子哥，多谢了！

八度空间 · 发表于 2015-12-28 17:13:06

[mw_shl_code=applescript,true]SD_Error SD_Erase(long long startaddr, long long endaddr)
{
      SD_Error errorstatus = SD_OK;
      uint32_t delay = 0;
      __IO uint32_t maxdelay = 0;
      uint8_t cardstate = 0;

      /*!< Check if the card coomnd class supports erase command */
      if (((CSD_Tab[1] >> 20) & SD_CCCC_ERASE) == 0)
      {
            errorstatus = SD_REQUEST_NOT_APPLICABLE;
            return errorstatus;
      }

      maxdelay = 120000 / ((SDIO->CLKCR & 0xFF) + 2);

      if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED)
      {
            errorstatus = SD_LOCK_UNLOCK_FAILED;
            return errorstatus;
      }

      if (CardType == SDIO_HIGH_CAPACITY_SD_CARD)
      {
            startaddr /= 512;
            endaddr /= 512;
      }

      /*!< According to sd-card spec 1.0 ERASE_GROUP_START (CMD32) and erase_group_end(CMD33) */
      if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) ||\
            (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) ||\
         (SDIO_HIGH_CAPACITY_SD_CARD == CardType))
      {
            /*!< Send CMD32 SD_ERASE_GRP_START with argument as addr  */
            SDIO_CmdInitStructure.SDIO_Argument =(uint32_t)startaddr;
            SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_ERASE_GRP_START;
            SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
            SDIO_CmdInitStructure.SDIO_Wait    = SDIO_Wait_No;
            SDIO_CmdInitStructure.SDIO_CPSM    = SDIO_CPSM_Enable;
            SDIO_SendCommand(&SDIO_CmdInitStructure);

            errorstatus = CmdResp1Error(SD_CMD_SD_ERASE_GRP_START);
            if (errorstatus != SD_OK)  return errorstatus;

            /*!< Send CMD33 SD_ERASE_GRP_END with argument as addr  */
            SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)endaddr;
            SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_ERASE_GRP_END;
            SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
            SDIO_CmdInitStructure.SDIO_Wait    = SDIO_Wait_No;
            SDIO_CmdInitStructure.SDIO_CPSM    = SDIO_CPSM_Enable;
            SDIO_SendCommand(&SDIO_CmdInitStructure);

            errorstatus = CmdResp1Error(SD_CMD_SD_ERASE_GRP_END);
            if (errorstatus != SD_OK)  return errorstatus;
      }

      /*!< Send CMD38 ERASE */
      SDIO_CmdInitStructure.SDIO_Argument = 0;
      SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_ERASE;
      SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
      SDIO_CmdInitStructure.SDIO_Wait    = SDIO_Wait_No;
      SDIO_CmdInitStructure.SDIO_CPSM    = SDIO_CPSM_Enable;
      SDIO_SendCommand(&SDIO_CmdInitStructure);

      errorstatus = CmdResp1Error(SD_CMD_ERASE);
      if (errorstatus != SD_OK)  return errorstatus;

      for (delay = 0; delay < maxdelay; delay++)
      {}

      /*!< Wait till the card is in programming state */
      errorstatus = IsCardProgramming(&cardstate);
      delay = SD_DATATIMEOUT;
      while ((delay > 0) && (errorstatus == SD_OK) && ((SD_CARD_PROGRAMMING == cardstate) || (SD_CARD_RECEIVING == cardstate)))
      {
            errorstatus = IsCardProgramming(&cardstate);
            delay--;
      }

      return errorstatus;
}[/mw_shl_code]