Lost communication with MCU！

General Discussion
1

printer (1).cfg (34.2 KB)
klippy (10).zip (2.3 MB)

Basic Information:

MCU / Printerboard:C8 Integrated motherboard
klippy.log

Forgive me for using translation. I encountered errors such as Timer too close. Replace and reinstall the klipper and firmware. Replaced the power supply, thermistor, and checked the wiring and firmware, but still reported an error. I cannot find such a problem.Sometimes 10 minutes, sometimes 6 hours, errors occur during printing

3

The canbus bus speed is 1000000, and the tool board is sht36 v2. I have reduced it to 500000 and changed the system and canboot firmware speed, but it still cannot solve the problem. Now the motherboard needs to be sent back

4

My motherboard has been sent back for testing, and customer service said it can run for a long time. I have a premonition that there is an abnormality in TMC2209. This needs to be sent over for some time for verification