bigtreetech / bigtreetech/CB1

FIRMWARE_RESTART, the can0 interface disappears.

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Description

After performing a FIRMWARE_RESTART, the can0 interface disappears. To restore it, I have to reflash the firmware on the lower machine.
In fact, my CB1 not only can't find can0, but the lower machine (M8Pv2.0) with the USB firmware I specifically flashed is completely missing. I can't even see the MCU of the lower machine with lsusb. I am a Chinese player, and I can't find a way to get help. Please forgive my broken English translated by Copilot。

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Research direction

Start by reproducing FIRMWARE_RESTART on the CB1 and checking whether can0 and the M8Pv2.0 MCU appear before and after it. Use lsusb to verify whether the lower machine disappears; done means both the can0 interface and USB firmware device remain available without reflashing.

Written by the indexing model from the issue text.

Assessment

Tech stack
linux
Domain
embedded-iot, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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