Thank you for your help, but hex file Can't help me solve the problem,
i find when i send cmd8 to read EXT_CSD but data is error .
Here's my code:
ExtCsdBuf = (uint32_t *)(&(E->EMMC_extcid.emmc_ext_csd_buf[0]));
//
SDIO_DataInitStructure.DataTimeOut = SDMMC_DATATIMEOUT;
SDIO_DataInitStructure.DataLength = (uint32_t)512;
SDIO_DataInitStructure.DataBlockSize = (uint32_t) 9 << 4;
SDIO_DataInitStructure.TransferDir = SDMMC_TRANSFER_DIR_TO_SDMMC;
SDIO_DataInitStructure.TransferMode = SDMMC_TRANSFER_MODE_BLOCK;
SDIO_DataInitStructure.DPSM = SDMMC_DPSM_ENABLE;
(void)SDMMC_ConfigData(hsd->Instance, &SDIO_DataInitStructure);
/* CMD8 */
errorstate = SDMMC_CmdOperCond(hsd->Instance);
if (errorstate != HAL_SD_ERROR_NONE)
{
return(errorstate);
}
while(!__HAL_SD_GET_FLAG(hsd, SDMMC_FLAG_RXOVERR | SDMMC_FLAG_DCRCFAIL | SDMMC_FLAG_DTIMEOUT | SDMMC_FLAG_DBCKEND| SDMMC_FLAG_DATAEND ))
{
if (__HAL_SD_GET_FLAG(hsd, SDMMC_FLAG_RXFIFOHF))
{
for (count = 0; count < 512; count++)
{
*(Test_Emmc + count) = SDMMC_ReadFIFO(hsd->Instance);
}
}
if((HAL_GetTick()-Timeout) >= SDMMC_DATATIMEOUT)
{
hsd->ErrorCode = HAL_SD_ERROR_TIMEOUT;
hsd->State= HAL_SD_STATE_READY;
return HAL_TIMEOUT;
}
}
if (__HAL_SD_GET_FLAG(hsd, SDMMC_FLAG_DTIMEOUT))
{
__HAL_SD_CLEAR_FLAG(hsd, SDMMC_FLAG_DTIMEOUT);
errorstate = 0;
return errorstate;
}
else if (__HAL_SD_GET_FLAG(hsd, SDMMC_FLAG_DCRCFAIL))
{
__HAL_SD_CLEAR_FLAG(hsd, SDMMC_FLAG_DCRCFAIL);
errorstate = SDMMC_ERROR_DATA_CRC_FAIL;
return errorstate;
}
else if (__HAL_SD_GET_FLAG(hsd, SDMMC_FLAG_RXOVERR))
{
__HAL_SD_CLEAR_FLAG(hsd, SDMMC_FLAG_RXOVERR);
errorstate = SDMMC_ERROR_RX_OVERRUN;
return errorstate;
}
else
{
/* No error flag set */
}
count = SDMMC_DATATIMEOUT;
// while ((__HAL_SD_GET_FLAG(hsd, SDMMC_FIFO_FIFODATA) != RESET) && (count > 0))
// {
// *ExtCsdBuf = SDMMC_ReadFIFO(hsd->Instance);
// ExtCsdBuf++;
// count--;
// }
/*!< Clear all the static flags */
__HAL_SD_CLEAR_FLAG(hsd, SDIO_STATIC_FLAGS);
return errorstate;
}
___________________________________________________________
Can you take a look at it for me?Thank you
