We are currently trying to connect ROScube Pico NX NPN-2-012E model for a project. What we need to do is to connect the device to a can bus and read data.
We followed the steps in the following link
https://adlink-ros.github.io/roscube-doc/roscube-pico/nvidia/advanced/canbus.html
When we set up our can0 with 250kbps, the loopback test is working, we can send data and receive it via candump command on the same device. But if we connect the device to a canbus and try to read data from can0, there is zero response on candump.
We connect to the bus through 40-pin GPIO ports pins 21 and 22 on the carrier board (CAN_L and CAN_H). I don’t know what might be the problem.
There is also a 3 pin CAN connection on the carrier board, which we couldnt find a clear pinout diagram for.
How can we read from the canbus using this model?
Do we need to somehow enable the pins 21 and 22 somehow?
Can you provide a clear guide on how to do it, since the guide from the link I attached is not working?
Any furher assistance would be helpful.
