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STM32H757-EVAL SDMMC1 not working

TomHoMe
Visitor

‎2026-02-02 11:34 AM - last edited on ‎2026-02-02 11:56 AM by

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

 

 

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mƎALLEm
ST Employee

‎2026-02-03 12:24 AM

Hello @TomHoMe and welcome to the ST community,

You may need to inspire from the BSP driver especially the file https://github.com/STMicroelectronics/stm32h747i-eval-bsp/blob/7d2997a570932f0b2f30be33209e94d3423226f4/stm32h747i_eval_sd.c unfortunately there is no ioc file. You need to reflect that config into your CubeMx configuration.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.
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