Klipper restart : 'Got EOF when reading from device'

General Discussion
1

Basic Information:

Printer Model: Voron V0.2 Fysetc
MCU / Printerboard: Cheetah V3.0
klippy.log

Dear All,

Recently, I built a Voron 0.2 Fysetc with Chetaah 3.0 and Mellow PI as an SBC, and after some time, the printing printer halted.
I’ve checked the log file and found this issue:

Attempting MCU ‘mcu’ reset command
b’Got EOF when reading from device’
Attempting MCU ‘display’ reset command
b’Got EOF when reading from device’
Attempting MCU ‘host’ config_reset command
b’Got EOF when reading from device’
webhooks client 281473433028448: Disconnected
Restarting printer

Things that I tried to solve the issue:
-Rebuild firmware from scratch
-Change all USB Cables 3 times.
-Disconnected V0 display and disabled on firmware
-Change SBC, replaced by BTT PI
-Tested Power Supply under load, and no fault was found
-MCU and SBC have independent fans. MCU and SBC temperatures did not rise above 50 degrees Celsius

Best Regards,
Christian Brito

klippy.log (5.2 MB)
moonraker.log (16.2 KB)

2

Sorry, I have no clue what’s going wrong.
I noticed, you use a whole bunch of macros. Did you write all the macros by yourself?

newplot
newplot1520×450 50.4 KB

Your bandwidth is pretty high. Might mean nothing, but it correlates a bit with your two attached logs.

You could read https://klipper.discourse.group/t/advanced-trouble-shooting-graphing-klipper

I would start over without all the macros. Just write the few needed ones by your own. Benefit is, you know exactly, what you want to approach.

Good luck, hcet14

3

I will try remove all just now

4

See Timeout with MCU / Lost communication with MCU

5

Finally after extensive troubleshooting, replaced Cheetah issue solved.

Christian Brito

1 Like
6

Would you share your solution with us? Others may benefit from it.

7

@hcet14 :

@CHRISTIANNB1 already wrote it:

8

Sorry, didn’t get it. He replaced the printerboard. Thanks.

1 Like