Problem : SD card with FATFs and mdma

[Kfell.1]

Hello,

I work in STM32H743, with the IDE 1.11, SD 4 wires. I followed the tutorial posted in Sep 27, 2021 about a File System on a SD card using STM32CubeIDE but nothing works I even tried to download examples provided by cubeIde but no results.

any idea?

thx

[Imen.D]

Hello @Kfell.1​ and welcome to the Community 🙂

Could you please describe the issue in detail?

Which example used?

Imen

[Kfell.1]

Hello and thank you for your help

I used the program explained in tutorial "How to add a BSP to an STM32CubeIDE project" posted in in Sep 27, 2021and also I used the examples from the stm32h743-eval card but when I create a new project with cubemx my SD card does not work with FAT commands despite I use the same procedures as examples of ST

thks

[AScha.3]

> but nothing works.

thats standard. 🙂

1. what board ? diy ?
2. first: set without DMA.
3. set port pin speed to medium high.
4. only mount - is ok ?

fresult = f_mount(&SDfs, (TCHAR const*)SDPath, 1); // SD card mount

try...

[JZHAN.6]

I seems a well-known issue that occur after F4 update to CubeMX6.7 from 6.6.x. You can try SDIO 1bit i.s.o. 4bit option, that might help to fix as work-around.