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The STM32U575 MCU can not use a 4 Bit SD card in 4 bit mode. Using the driver and FAT32 from qubeMX result in an error. The error is that the bits are shifted by 4 bits. What do i do wrong or is this a known issue. If it is an issue, is there a quick fix

RMeda.1
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2 REPLIES 2
jaw
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did you even get anywhere on this?

 

I'm seeing the same issue on the 'U5A5. 

works perfectly in 1-bit mode. but 4-bit mode fails (even with the clock at 400kHz)

nothing mentioned in the errata.

Here you can read about my problems with sd-card on H5 :  (4 bit mode)

https://community.st.com/t5/stm32cubeide-mcus/sd-card-not-working-with-azure-filex-anybody-got-it-working/td-p/596914

 

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