Posted on July 20, 2017 at 17:37Hello everyone,
I'm trying to make this code works :
/*♯♯-1- Link the micro SD disk I/O driver ♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯♯*/
if(FATFS_LinkDriver(&SD_Driver, SDPath) == 0)
{
/*♯♯-2- Register the file system object to the FatFs module ♯♯♯♯♯♯♯♯♯♯♯♯♯♯*/
if(f_mount(&SDFatFs, (TCHAR const*)SDPath, 0) != FR_OK)
{
/* FatFs Initialization Error */
Error_Handler();
}
else
{
/*♯♯-3- Create a FAT file system (format) on the logical drive ♯♯♯♯♯♯♯♯♯*/
/* WARNING: Formatting the uSD card will delete all content on the device */
if(f_mkfs((TCHAR const*)SDPath, 0, 0) != FR_OK)
{
/* FatFs Format Error */
Error_Handler();
}
}
}
The fm_mkfs function gets out at that line in the ff.c file of the FatFs library:
if (disk_write(pdrv, tbl, b_vol, 1)) /* Write it to the VBR sector */
return FR_DISK_ERR;
To be precise it gets out in the SD_WriteMultiBlocks (custom disk_write function) function :
SD_Error SD_WriteMultiBlocks(const uint8_t *writebuff, uint64_t WriteAddr, uint16_t BlockSize, uint32_t NumberOfBlocks)
{
SD_Error errorstatus = SD_OK;
TransferError = SD_OK;
TransferEnd = 0;
StopCondition = 1;
SDIO->DCTRL = 0x0;
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | /*SDIO_IT_RXOVERR*/SDIO_IT_TXUNDERR | SDIO_IT_STBITERR, ENABLE);
SD_LowLevel_DMA_TxConfig((uint32_t *)writebuff, (NumberOfBlocks * BlockSize));
SDIO_DMACmd(ENABLE);
if (CardType == SDIO_HIGH_CAPACITY_SD_CARD)
{
BlockSize = 512;
WriteAddr /= 512;
}
/* Set Block Size for Card */
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize;
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);
if (SD_OK != errorstatus)
{
return(errorstatus);
}
..... /* Other commands in the function...*/
......
}
It returns : SD_CMD_RSP_TIMEOUT.
I can't figure out why all the previous commands worked but this one (which also worked on previous calls).
Any clue will be appreciated.
Thank you.
Mathias
#fatfs-sdio #stm32f103
