I been having trouble with mounting a SDcard with the FatFS. The mount fails every time with "FR_NOT_READY". I using a Nucleo-F746ZG board, All code generated from STM32CubeMX v5.3.0, SDIO wide bus 4bits. The SDcard is a 1GB, formatted as FAT

I am trying to get the STM32F722 to interface with the USB3300 external HS PHY (ULPI). I have generated code from the cube. I been doing digging.. the "USBD_CDC_Init" function never get called and pClassData is always NULL.  I have tried changing the...