Have there been any updates on this? I also have the same issue when homing z. Setup is rock solid otherwise. Editing TRSYNC_TIMEOUT helped a lot, but that feels more like a hack than fixing a problem. I find it curious that the 32-bit kernel apparently fixes the issue, but I don’t think that’s an option with the SBC I’m using
Edit: The error just happened to me now. My klippy.log file is apparently too large to attach. Here’s a truncated version - hope that’s enough
truncated.log (338.6 KB)
Just for some details on my setup:
Printer is a Voron 2.4 (r1 with most of the r2 updates)
Host = OrangePi 5 running Armbian
CAN-bus is using RK3588’s native can-bus with a TCAN337 as the transceiver
BTT Octopus Pro F429 connected via CAN-bus, this is running the A/B motors and the Z motors
BTT EBB sb2240 at the toolhead
I had similar issues using a mellow utoc with a raspberry pi 4, as well as when I was running a mellow SB2040