I have a STM Nucleo H743 board and would like to try out CAN FD.
Looking at the fdcan.c and can.c I can see where the Nominal bitrate is set but I can't see where the Data bitrate is set.

Also in pyb_can.c the tx_msg.BitRateSwitch flag seems to be hard coded to off and tx_msg.FDFormat is set to classic CAN.

So is CAN FD fully support ?