Unable to Setup CAN Network

[Rodman]

Armbianmonitor:

https://paste.armbian.com/ejohosazaw

Hello,

 

I've been having some issues with the official CB1 image on github provided by BTT. Namely, I'm having CAN issues with bytes_invalid increasing during printing operation which is exacerbated once I add more than 1 CAN device.

 

One of the recommendations was to try a newer kernel so I'm trying to migrate to Armbian. I have called out the appropriate overlays (MCP2515)and verified that they are loaded in the armbianEnv.txt file. However, I am not able to load up a Can network. I have created a file in /etc/systemd/network/80-can.network containing the below info.

 

[Match]
Name=can*

[CAN]
BitRate=1000000

 

I also ran

dtc -s /proc/device-tree 2>/dev/null > foo.dts

 

foo.dts

Edited September 6 by Rodman
Added foo.dts file

[JohnTheCoolingFan]

After changing the overlays, make sure to reboot the board. The device tree you sent shows mcp2515 as disabled. I've booted the current armbian image on my board, added just mcp2515 to the overlays, and the device tree shows mcp2515 as enabled.

[JohnTheCoolingFan]

From more testing on my end, I found out that the `light` overlay causes errors. Please remove it from the list, and the CAN should work.

[Rodman]

Looks like removing the "light" overlay does allow the CAN network to start up. Thanks for the help!

 

Unfortunately, it appears that the bytes_invalid issue persists with this kernel as well. The hunt continues!

[JohnTheCoolingFan]

I've submitted a patch to github that fixes the `light` overlay: https://github.com/armbian/build/pull/7183

It would allow to use the light overlay, if needed.