I have a question related to CAN hardware in microcontroller MPC5646C.
For some specific reasons we have in our hardware a CAN controller which is started and CAN messages being transmitted. The CAN_TX and CAN_RX lines are not connected to any transceiver and are left open. In this situation, when we transmit we see that there is a bus-off occurring although we have configured CAN_RX pin as CAN specific receive functional pin.
Is this bus-off expected if the CAN lines are left open but correctly configured in software?