NVIDIA® Jetson AGX Orin™ Developer Kit 64
Hi sediksultan,
What’s the Jetpack version in use?
Please do not short CAN-TX/CAN-RX since CAN should only work with CAN transceiver connected.
You can disconnect PIN29/PIN31 and run the following command to verify internal loopback test for CAN.
$ sudo busybox devmem 0x0c303018 w 0xc458
$ sudo busybox devmem 0x0c303010 w 0xc400
$ modprobe can
$ modprobe can_raw
$ modprobe mttcan
$ ip link set can0 type can bitrate 500000 loopback on
$ ip link set can0 up
$ candump can0 &
$ cansend can0 123#abcdabcd
If you still hit any issue with above steps, please share the full dmesg for further check.