I have been using a CAN/RS485 Cape for prototyping CAN control of a motor. I am now in the process of bringing up some custom hardware. I have a CAN Transceiver SN65HVD230D on this custom cape that is connected to pins 31 and 32 on P8 - UART5 TX/RX.
I tried simply configuring the pinmux using
config-pin however I got two errors:
user@beaglebone:/lib/firmware$ sudo config-pin P8.31 can P8_31 pinmux file not found! Invalid mode: can
Is it necessary to create a device tree overlay as this question suggests?
Is it even possible to use these pins for CAN or is CAN only available through DCAN0/1_RX/TX pins?