is it possible to lose the arduino firmware? My xpro cnc card is seen by the PC as a COM port under windows but it does not respond anymore, so it worked very well. I tested the PC with an Arduino card on which I loaded GRBL and it works with my PC and Universal GCodeSender. under Putty, no answer (115200 bauds) Should I reload the firmware? Can he have been lost? Thank you
Hi, Thank you for your answer! This afternoon i tried to reload the GRBL firmware with XLoader. but it doesn't work. The software may find the board because the two leds just near the usb connector blink. but the final result is "Upload failed" after about 15 seconds. I tested the same configuration with an Arduino uno board and it worked fine. What can you say about this? I will try to reload the bootloader of the atmega. I think that I need a specific tool Added to that, when I connect the board with the Arduino IDE, and I try to have some informations about the board, I have VID=0403 PID =6015 BN : unknown board SN: Send the schematics
Instead of XLoader (Which doest print out any information as to why it fails) try How to Reflash GRBL to the CNC xPRO (Also gnea/grbl) The Arduino IDE logs nicer errors that you can post if you dont manage. In the unlikely event that the bootloader is gone too, you can use your spare Arduino as an ISP to flash the bootloader: Arduino - ArduinoISP Try
Hi, Finally I recharge the bootloader and the grbl 0.9j Now I have a communication between UniversalCodeSender and the board. I reload the settings as i found it at the appendix 6.0 of my OX CNC When i send a command to the board (Machine control X+ 10 steps for example) i have no move and the motor don't turn. I think there isn't any voltage sent to the motors. but in the universal GCode sender everything is ok What can I do? my configuration (OX CNC bought one year ago ) Thank you for your answer Vincent
1) 1. Use Grbl 1.1f (0.9 is very very old) 2. Check $4 on the grbl settings (see Spark-Concepts/xPRO - particularly "$4=1 (step enable invert, bool) (Board V1, V2, V3 Matte = $4=0 - Glossy board V3 = $4=1)" - based on which version you have)
