stm32f407 SDIO and USART together

[xt]

when I use the usart6's DMA, my SDIO can't write to the SD card properly

[Andrew Neil]

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PS:

Does it work if you use USART6 without DMA ?

[Tesla DeLorean]

What does this mean? It trashes the file system on the card making it unreadable or just corrupts the file contents of what you are logging?

Do they share resources or channels? I don't recollect there being a problem on this platform.

Debug the issue.