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balena-os / balena-jetson

https://www.balena.io/os/
Apache License 2.0
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Microchip mcp251x CAN driver not working on JetPack 4.6.3 and Nvidia Ubuntu #581

Open alexgg opened 1 year ago

alexgg commented 1 year ago

This has already been raised with Nvidia in https://forums.developer.nvidia.com/t/mcp2515-issue-thouroughly-followed-all-existing-threads-cant-get-it-to-work/246849.

In summary, balenaOS releases based on 32.7.3 (from v2.108.10) have a non-working CAN driver for this chipset.

adolfogc commented 9 months ago

Hi, related to this issue, what is the recommended way of using a CAN shield such as Waveshare's (https://www.waveshare.com/wiki/RS485_CAN_for_Jetson_Nano)? Can one add a DTS overlay just like in the Rpi-based boards?

acostach commented 9 months ago

Hi @adolfogc , we don't support custom overlays for Jetson devices, only custom device-trees and this is applicable only for the devices which use u-boot in L4T 32.X. Please see https://docs.balena.io/learn/develop/hardware/i2c-and-spi/#jetson-devices for details on Jetson device-trees.

adolfogc commented 9 months ago

Hi @acostach, thank you for your reply and for the information, I'll look into that documentation.