Solved
This topic has been closed for replies.
Assume ST staff and forum participants have no information on the STM32 family you're using, the board, the pin level connectivity of your SDIO/SDMMC card. A lot of us aren't using CubeIDE/MX to auto-gen our code..
Perhaps you need to flag up a GPIO first, and THEN associate it with the FATFS/SDIO side of the configuration.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.