Basic Information: Printer Model: BIQU-BX MCU / Printerboard: SKR SE-BX-V3.0 klippy.log : klippy.log (5.2 KB) While shifting form Marlin I installed Klipper on a PI4 attached to the TFT70-BX-V3.0. The installation seems to work fine. [Capture d'écran 2024-05-31 173358] I copied the Klipper…

It does not work either: ls: cannot access '/dev/serial/by-path/*': No such file or directory

[image] Cracoukas: The connection was working ok when in was running Marlin and … As long as the board is not even recognized by Linux on OS level, you have exactly 3 options: Wiring issue between host and board Dead board or dead host Not correctly flashed So, do you want to solve the pro…

Sorry if I annoy you but, I just want to solve the problem and understand what is not working Wiring issue: the connection bewtween the PI and the board was working ok when I was running Marling I check the continuity of the wiring with a multimeter I tried with a second set and TFT70-BX-V3.0…

[image] Cracoukas: the connection bewtween the PI and the board was working ok when I was running Marling This connection is not needed nor used on Marlin (at least not how Klipper does). The link above has roughly 30 individual items that can lead to this effect and need to be checked. So,…

I suppose it’s some missconfuguration but what ? I followed your advices in " [Debian 11 (Bullseye) udev bug - No board or serial found](https://klipper.discourse.group/t/debian-11-bullseye-udev-bug-no-board-or-serial-found/10711)" as well as [BRLtty / ModemManager - Services Interfering with Klipp…

Here is the procedure I followed: https://klipper.discourse.group/t/debian-11-bullseye-udev-bug-no-board-or-serial-found/10711 sudo apt -y update && sudo apt -y upgrade apt-cache policy udev udev: Installed: 247.3-7+rpi1+deb11u2 Candidate: 247.3-7+rpi1+deb11u2 Version table: *** 247.3-7+rpi…

I am wondering if it could be possible to bypass the TFT70 board and connect the PI to the printer using the USB ports at least for testing purposes ? I am also considering switching to a Manta board, may be easyer to get working with Klipper ?

Your dmesg report does not contain a single trace of a connected printer board. [image] Cracoukas: I am wondering if it could be possible to bypass the TFT70 board What do you mean with this? I hope, it is clear that the SKR board needs to be connected to the Pi and not the TFT?

Indeed, the question is how ? With the SKR SE-BX and TFT70-BX V2 it could be connected either by USB or using pin 8 (TXD) and 10 (RXD) of the PI and the corresponding WiFi pins on the SKR board. Now BTT does not support V2 boards anymore and replaced them by V3.0 version which have different conn…

'mcu': Unable to connect

General Discussion

Sineos June 1, 2024, 8:56am 11

Follow in the exact sequence as given How-To Trouble-Shoot and attach the resulting dmesg.txt

Topic		Replies	Views
Cannot find MCU? General Discussion	16	822	December 3, 2024
Cant' detect MCU - Tried Everything! Please Help General Discussion	16	1194	February 25, 2024
Raspi 4 failing to make usb connection to MCU General Discussion	35	7391	May 22, 2023
No conecta klipper skr mini v3 General Discussion	16	351	July 2, 2024
Unable to connect to MCU after update General Discussion	32	5952	June 23, 2023

'mcu': Unable to connect

Related topics