Can bus not working in NX Dev kit

[maharshi.oza]

I have referred following pages, but have not received any command by shorting CAN-H and CAN-L pins.

1. Link to an existing forum question: How to using CAN In nx devkit

Please suggest a solution or approach to communicating using CANBus communication in NX Dev Kit.

JetPack version: 4.6

[JerryChang]

hello maharshi.oza,

may I know what’s your steps to enable CAN networks in detail.
had you also test loopback mode for sanity check?
furthermore, there’s developer guide for reference, CAN (Controller Area Network).

[maharshi.oza]

Hello JerryChang,

I have followed this " Enabling CAN on Nvidia Jetson Xavier Developer Kit | by Ramin Nabati | Medium " link only to enable CAN in NX Dev kit.

[JerryChang]

hello maharshi.oza,

wait… may I confirm the Jetson platform you’re using. is it AGX Xavier, or Xavier NX?
please note that there’s only single CAN controller, i.e. mttcan@c310000 for Xavier NX.

[maharshi.oza]

Hey JerryChang,

I am using Xavier NX Dev Kit.

I know that the Xavier NX has one CAN controller, so I have changed the value of the following registers only.

0x0c303000 = 0x0000c400
0x0c303008 = 0x0000c458

[JerryChang]

@maharshi.oza

0x0c303000 = 0x0000c400
0x0c303008 = 0x0000c458

that’s incorrect address,
please check developer guide for reference, CAN (Controller Area Network).
for example,
Xavier NX,
can0_din / address: 0x0c303020 / Value:0x458
can0_dout / address: 0x0c303018 / Value:0x400

[maharshi.oza]

Thank you, it has worked for me.

[JerryChang]

hello maharshi.oza,

thanks for sharing test results, we’ll mark this as solved and close this discussion thread if there’s no further questions.