USB issues on SKR3ez Board - mcu 'mcu': Unable to connect

General Discussion
1

Basic Information:

Printer Model: Wanhao D5
MCU / Printerboard: SKR3ez
klippy.log (84.6 KB)

Issue:
mcu ‘mcu’: Unable to connect

Hey all, so this is driving me crazy really hope someone can help.
I am trying to set up klipper on the skr3ez board and can’t seem to get the USB to connect. I have the usb id, and I have put it in my config, and still nothing.
I did notice that my chip seems different from all the documentation (STM32H723).

printer.cfg:
[mcu]
serial: /dev/serial/by-id/usb-Klipper_stm32h723xx_080030001651313238353730-if00/

serial from ls /dev/serial/by-id/* :
/dev/serial/by-id/usb-Klipper_stm32h723xx_080030001651313238353730-if00

2

I think I may have found a workaround, has anyone else tried this?
I will update once I have tried it myself.

3

Try removing the forward slash on the very end of your device id

4

Thanks, yeah I did try that

5

Found this in the latest entry your log:

No such file or directory: ‘/dev/serial/by-id/usb-Klipper_Klipper_firmware_12345-if00’

Check if the printer.cfg is in the right folder. Maybe try running the make menuconfig and compile the firmware, so that old build files are cleaned.

Edit: also check this out:

https://www.reddit.com/r/klippers/comments/nz6th8/need_some_help_fellas/?utm_source=share&utm_medium=ios_app&utm_name=ioscss&utm_content=2&utm_term=1