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aquamorta / kkengraver

A command line tool for a KKMoon laser engraver
GNU General Public License v3.0
26 stars 6 forks source link

failed to connet to kkmoon 3000 #11

Open rUser75 opened 3 years ago

rUser75 commented 3 years ago

Hello, I've a kkmoon 3000 attached to my linux box (centos 8 kernel 4.18.0-193.28.1.el8_2.x86_64 + Python 3.6.8)

the device was discovered by os

Dec 1 10:03:50 xx kernel: usb 1-1: new full-speed USB device number 7 using xhci_hcd Dec 1 10:03:51 xx kernel: usb 1-1: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.63 Dec 1 10:03:51 xx kernel: usb 1-1: New USB device strings: Mfr=0, Product=2, SerialNumber=0 Dec 1 10:03:51 xx kernel: usb 1-1: Product: USB2.0-Serial Dec 1 10:03:51 xx kernel: ch341 1-1:1.0: ch341-uart converter detected Dec 1 10:03:51 xx kernel: usb 1-1: ch341-uart converter now attached to ttyUSB0

but when I try to connect to the kkmoon

./engraver.py -d /dev/ttyUSB0 -vv DEBUG: opening device /dev/ttyUSB0

DEBUG: sending:10, 0, 4, 0, 255, 0, 4, 0: got acknowledge DEBUG: response read:b''Traceback (most recent call last): File "./engraver.py", line 658, in engraver.connect() File "./engraver.py", line 453, in connect self.firmware="%s.%s.%s"%(resp[0],resp[1],resp[2]) IndexError: index out of range

could you help me?

aquamorta commented 3 years ago

Hello!

It doen't look good. It seems that you have a new or incompatible firmware, because the device did not react on receiving the initial byte sequence (10, 0, 4, 0, 255, 0, 4, 0) by sending back its firmware version. Instead it runs into a timeout.

Maybe kkmoon have changed the init protocol. I only could improve the software if I would get the new init sequence your device needs.

rUser75 commented 3 years ago

Thank you. If you need additional debug info please don't hesitate to ask