Basic Information:
Printer Model: VZBot235
MCU / Printerboard: BTT SKR 3
klippy(5).zip (423.6 KB)
klippy.log
Describe your issue:
Running a Pi 3b with MainsailOS (Bullseye, 32bit) and Fluidd, and tried both an SPI connected MCP2515 and an USB canable CANBUS adapter. The Pi is always powered on, as well as any USB devices connected to it (camera, canable, etc). The mainboard, EBB36, heaters etc are unpowered until switched on via a relay.
The canbus setup works perfectly fine, until the printer is powered down for more than ~20 minutes or so. Once that time has passed, the EBB36 can no longer be connected to. The can0 interface is still up, lsusb shows the canable connected, shutting can0 down and restarting it does nothing, toggling relay power does nothing. Once I reboot the Pi, the can connection instantly works again until the relay is off for 20+ mins again.
I also run another printer with a very similar setup (MCP2515) on Buster, and have no such issues.
Any ideas?