Has anyone a working 1-bit SDIO FATFS example with STM32f207VE?

[LOGU]

I would like to use SDIO with 1 bit mode with FatFS. I use STM32F207VE MCU. The SD card is a 16 GB SanDisk.

Version of STM32CubeMX is 6.1.1, firmware version is STM32Cube FW_F2 V1.9.2.

FATFS R0.11 version used.

When I generate SDIO with 1 bit mode it is not working. Function 'f_open' is returning with error code: 12 which is 'FR_NOT_ENABLED' and f_read return with error code 9, which is 'FR_INVALID_OBJECT'

// code

while(1)

{

retSD=f_mount(&SDFatFS, SDPath, 1);

HAL_Delay(20);

if(resSD == 0)

{

HAL_Delay(20);

retSD = f_open(&SDFile, "HL.txt", FA_READ);

HAL_Delay(200);

retSD = f_read(&SDFile, array,sizeof(array),bytesread);

HAL_Delay(200);

f_close(&SDFile);

}

}

help me how can I solve this.

[Tesla DeLorean · Accepted solution]

You could waste the best part of forever digging bugs out of machine generated code.

I'd suggest this as a working basis for a port to your platform

STM32Cube_FW_F2_V1.9.0\Projects\STM322xG_EVAL\Applications\FatFs\FatFs_uSD

I'd also upgrade to more current FATFS that doesn't have the bugs in the ones ST distributes.

Don't mount in a loop. Mount once. Validate the functionality of DISKIO routines.

[LOGU]

thank you tesla delorean,

i will check.

[Imen.D]

Hello @LOGU​ ,

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Imen