Posted on November 27, 2013 at 17:07 Here is my code, if somebody can help:
void SD_SetPDW_Test(void){
SD_Error x = SD_Init();
errorstatus = SD_GetCardStatus(&cardstatus);
SDIO_CmdInitStructure.SDIO_Argument = 10;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
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_SET_BLOCKLEN);
SDIO_CmdInitStructure.SDIO_Argument = 0;
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_LOCK_UNLOCK;
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);
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
SDIO_DataInitStructure.SDIO_DataLength = 11;
SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_16b; //SDIO_DataBlockSize_16b;
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard;
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
SDIO_DataConfig(&SDIO_DataInitStructure);
memset(tmp_buff, 0, 64);
memcpy(&(tmp_buff[3]), passw, sizeof(passw));
uint8_t csCalc[10] = {SD_SET_PWD_SDIO | SD_LOCK_UNLOCK_SDIO, 6, 'A', 'D' , '3', '2', '4', 'Z', 0x65, 0x41 }; //password is AD324Z and the checksum CRC/CCIT(16 bit) is 0x4165
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE);
SD_LowLevel_DMA_TxConfig((uint32_t *)csCalc, 10);
SDIO_DMACmd(ENABLE);
errorstatus = CmdResp1Error(SD_CMD_LOCK_UNLOCK); //here the status is SD_OK
errorstatus = SD_GetCardStatus(&cardstatus); //here the status is SD_OK but probably should be SD_LOCKED
} At the end SD card status returns SD_OK but I think that it should be SD_LOCKED. And the SD card is not locked.
