SKR-3 v3 (STM32H723) Option 'serial' in section 'mcu' must be specified

General Discussion
1

Basic Information:

Printer Model: custom coreXY
MCU / Printerboard: SKR-3 v3(STM32H723)
Host / SBC
klippy.log
klippy (2).log (1.7 KB)

Hi, I have an issue of motherboard not detect to klipper so that I can’t mentioed [mcu] serial without port detections.
I try all the thing which is mentioned on klipper installation document aswell as community post for that but I am not getting result.

Need help to achieve the goal.
Hardware : SKR-3 v3, Rpi-3, waveshare 5inch touch display

2

Hello @Jeet09 !

There is nothing (ZERO) in the config file.

3

klippy.log (29.1 KB)

I directly copy .cfg file from github and flash it though SD card using make . It successfully flash because firmware.bin file rename to firmware.cur file.
I further check for port using ls /dev/serial/by-id/* this command but it;s give error like ls: cannot access ‘/dev/serial/by-id/*’: No such file or directory. without that I can not connect to MCU.

4

That does not mean that is works properly on the MCU.

That one of the first steps. Have you tried different USB cables?

Where are you running Klipper on?

5

But I read somewhere that bin file goes to cur file firmware was flashed.

Yes, I change cable for that still got error.

Mailsail OS

7

Typically yes, but it also will potentially flash a firmware compiled with wrong settings. Getting the settings and MCU type correct is of extreme importance.

Also refer to the discussion here SKR3 V3 Problem 'ls /dev/serial/by-id/`

8

Thanks for sharing. I go through it and I check low level config for motherboard in that I didn’t mention crystal value that’s why port not detect. After I set the value and flashed firmware it give output of port.

Thanks for Helping.

9

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