I tried to access sd-card from model by enabling freertos in stm32h7b3i but i get fopen error. It worked in stm32f746g-dk which has dma access in sdmmc. where in case of stm32h7b3I it has internal dma but there is no sign of dma link code with sdmmc1

[Walid ZRELLI]

Hello @Community member​ ,

Have you tried an example provided under our H7 firmware package?

Otherwise, can you please provide some information about the SD card used?

Thanks in advance.

BeST Regards,

Walid