Is seems that the pdk is hardcoded to use only 1 bit data with SDCARD
The field supportedBusWidth in MMCSDInitCfg specify only the values accepted with successive MMCSD_control (handle, MMCSD_CMD_SETBUSWIDTH, (void *)&Data).
But the driver doesn't use this.
Trying to manually invoke this function after FATFS_open has no effect (maybe it has to be done inside the initialization phase).
It is possible to use 4 bit data with SDCARD? Wich could be the simplest way to do this in firmware?