I follow RPi microcontroller - Klipper documentation to create a host mcu on orangepi zero 3. Already add the klipper-mcu.service to system，make and flash linux process. In systemctl , seems it work correctly: [image] But did not see klipper-mcu appear in /tmp/ orangepi@orangepizero3:~/klipper…

Hello @ixprism ! It would have been nice if you would have followed the template you deleted at the very beginning. It asked for the klippy.log. Also, what Linux distribution are you running? If Debian Bulleseye, you may look here: [image] Debian Bullseye Bug causing Klipper to…

Please provide the output of each of the following commands: cat /etc/systemd/system/klipper-mcu.service Perform a: systemctl restart klipper-mcu.service systemctl restart klipper.service Then provide the output of systemctl status klipper-mcu.service Followed by a FIRMWARE_RESTART in the pri…

It’s running debian12 bookworm Linux 6.1.31-sun50iw9 After using these commands , it shows: orangepi@orangepizero3:~$ cat /etc/systemd/system/klipper-mcu.service #Systemd klipper linux mcu Service [Unit] Description=Starts the MCU Linux firmware for klipper on startup Documentation=https://www.k…

Apparently the start fails with: 2023-08-07T15:09:41.543871+00:00 orangepizero3 systemd[1]: Stopped klipper-mcu.service - Starts the MCU Linux firmware for klipper on startup. 2023-08-07T15:09:41.552596+00:00 orangepizero3 systemd[1]: Started klipper-mcu.service - Starts the MCU Linux firmware for …

No settings changed, just enabled some gpio functions.

I downloaded Orangepizero3_1.0.0_debian_bookworm_server_linux6.1.31.img , installed klipper with kiauh, and then this problem occurred

Unfortunately, I cannot offer any more insight. This seems some incompatibility between switching real time parameters of the Kernel in the Armbian’s development branch and Klipper’s host process.

Although its not a Zero 3 as yours I ran my Orange Pi Zero with Armbian back in the days. Everything worked fine and with some tricks even Numpy could be installed. But for the Zero 3 it looks like you can only choose from here: [image] GitHub - leeboby/armbian-images: Armbian Images for O…

Unfortunately wifi doesn’t work on this Zero3 Armbian firmware, can’t see ssid anymore after two failed connections I tested orangepi zero1 and 2, klipper host mcu working normally. Maybe just wait for a better Zero3 armbian image.

Can't start a Linux host mcu on Orangepi zero 3

General Discussion

ixprism August 8, 2023, 7:48pm 12

ok, looks like I found a solution, at Armbian kernel & Klipper host mcu: "Got error -1 in sched_setschedule"

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Can't start a Linux host mcu on Orangepi zero 3

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