Klipper cant connect to mcu

General Discussion
1

Basic Information:

Printer Model: ender 3 s1 pro
MCU / Printerboard: STM32F401
klippy.log (49.5 KB)

Fill out above information and in all cases attach your klippy.log file.

Describe your issue:

…Hi Everyone. im relatively new to 3d printing and I am in the process of flashing klipper onto my ender 3 s1 pro I believe the flash went okay but i honestly don’t know how to tell, But when I connect my rpi to my printer mainsail it spits out an mcu error. I am extremely lost all help is much appreciated. This is my first time posting so forgive me if the logs and config are in the wrong place. Thanks in advance

2

Your upload of the klippy.log seems to be broken.
Please re-upload it so you can get help.

3

fixed

@cbrew
Your error is:

mcu 'mcu': Unable to open serial port: [Errno 2] could not open port /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0: [Errno 2] No such file or directory: '/dev/serial/by-id/usb-1a86_USB_Serial-if00-port0'

Check Debian Bullseye Bug causing Klipper to no longer find the printer board

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