SDMMC with SD card and NUCLEO-L476 not working

[PSmol.1]

Hi everyone,

I am having a hard time getting the SDMMC interface working with my NUCLEO-L476RG.

I feel like this should be an out-of-the-box solution using CubeMX, but somehow I can't get it to work.

I am getting a chip detect but an error when establishing the card voltage.

As for code, I am just using what CubeMX is giving me, SDMMC 1 bit wide (I tried 4bit, same situation), FATFS with SD card settings. For clock, the sdmmc clock is set to 36MHz (default) and clock divider of 16.

Any help is greatly appreciated!