Problem mcu 'mcu': Unable to connect

Basic Information:

ender 3 pro
BIGTREETECH SKR MINI E3 V3.0 raspberry pi 3
klippy.log

klippy .log (13.7 KB)

hello everyone i have this error:
mcu ‘mcu’: Unable to connect
Once the underlying issue is corrected, use the
“FIRMWARE_RESTART” command to reset the firmware, reload the
config, and restart the host software.
Error configuring printer.
in printer.cfg in mcu line i have this:
[mcu]
serial: /dev/serial/by-id/usb-Klipper_stm32g0b1xx_27000D000150414235363020-if00

serial: /dev/ttyAMA0

restart_method: command

is correct?
thanks to whoever answers

From your log:

mcu 'mcu': Unable to open serial port: [Errno 2] could not open port /dev/serial/by-id/usb-Klipper_stm32g0b1xx_27000D000150414235363020-if00: [Errno 2] No such file or directory: '/dev/serial/by-id/usb-Klipper_stm32g0b1xx_27000D000150414235363020-if00'

Key is: No such file or directory: '/dev/serial/by-id/usb-Klipper_stm32g0b1xx_27000D000150414235363020-if00'. so apparently this path is either not correct or the board is not correctly registered in the Linux system. See Issues flashing the printer board for some pointers.

Cattura
this is the menuconfig for my processor is correct? i try to change the SD 8Gb but nothing why? and in the lcd is a BTT TFT35-E3 V3.0.1 there is this error “no printer attached!” is this connected to MCU problrm?
Thank

For a SKR MINI E3 V3.0 the firmware settings are correct. Pay attention, there is also a V3.0.1 and here the settings are different.

This TFT is not supported by Klipper

hi sorry for my absence the screen manufacturer only provides the marlin firmware and looking on their git hub page they say to put a certain command in the configuration.h but there is no model of my motherboard. for the initial problem you need some more photos/information to solve the problem thanks a lot

There is nothing more I can contribute:

  1. The display is not supported and will not work in Klipper
  2. Follow the information given in Issues flashing the printer board and make absolutely sure, you are using the correct values for your board. Verify MCU type etc against what is really used on your board