STM32H750 SD-Card problem

[MHoma.1]

Hello everyone,

I have a problem with the SD card.

With the sTM32F750 Discovery kit, 4, 32, 64 and 128 GByte SD cards work perfectly. The interface used is SDMMC.

The target system is an STM32H750VBT6. I am using the SDMMC1 interface here. 4 Gbyte SD cards work perfectly. 32, 64 and 128 GB do not work.

The lines D0, Di, D2, D3 and CMD have a 47k resistor against 3.3V.

After calling the function BSP_SD_Init (), lines D0 .. D3 are set to GND. This is not the case with 4 GByte SD cards.

[MHoma.1]

The Problem is fixed..

Set the Common SDMMC Parameters: does the board use µSD Transceiver : Disabled