2026-02-02 11:34 AM - last edited on 2026-02-02 11:56 AM by Andrew Neil
Hi,
we are trying to get SDMMC1 running on our evaluation boards (STM32H757-EVAL) but without any success so far.
To further investigate the issue we started a new project from scratch, using CubeMX with sdmmc1 enabled. It doesn't work neither.
btw: board and SD interface are OK. i.e.the demo that came with the board is reading video files from SD card successfully.
Please, can someone provide a ruuning setup for Cube-MX (STM32H7 firmware 11 or 12) with the specific settings for Clock Configuration and SDMMC1.
We are using CubeMX 1.15, STM32H7 firmware package V. 12.1.
The error happens during SD PowerOn(), i.e. there is no response from CMD8, CMD55...
Thanks for your help
Tom