Hello,
I have the following setup:
Raspberry Pi 4 with current Raspbian
PiCAN 3
Realdash MRD 2.1 armhf
Haltech Elite 2500
Currently I just connected the PiCAN Hat to the RPI and from there
to an external display. I do not have any connections to the Haltech ECU yet since
my car is not running right now. I did a fresh install on my RPI and installed Realdash.
Then I proceeded to do the steps that are described on the user manual for the PICAN:
https://copperhilltech.com/content/PICAN3_UGA_10.pdf
Then I tried to test it with “sudo Ip link set can0 up type can bitrate 500000 restart-ms 100”
I get an error saying “RTNETLINK answers: Device or resource busy”
What would be the next step to find out what is going wrong ?