How to use CAN of Jetson AGX Xavier to communicate with other device

[shgarg]

Hi lixiang,
Can you check this post and see if you have enabled CAN on Xavier properly:

Enable CAN on Xavier

Hi, Yes, CAN is verified on Xavier. And the software configuration is different than that of TX2. There is a catch here. At present (In case of Xavier) the pinmux which is packaged for Xavier on public releases, configures the CAN I/O pins to have GPIO functionality. This is to comply with Raspi 40-pin standard. In this case CAN functionalities are disabled on the pins. To have the pins configured as CAN (SFIO) functionalities, either of these can be followed. There is a separate pinmu…

You have to update pinmux for the pins you are using.
You can do so by updating cfg and reflash or by using busybox devmem tool to directly write to HW registers.
Let me know if you are facing any issues.

Thanks,
Shubhi