Unknown problem with board
I have been using my duet wifi for a few months now and it has worked well. I recently tried to setup the duex5 with my printer, but during the process, I made some mistake. I am not sure where I went wrong, but now my board isn't functioning properly. I may have pressed the erase button during the process, I am not sure. It is possible i have messed up in some other way. I have tried to reflash the board with Sa-mba, but I can't even get the Bossa port to show up in device manager. I also had checked for the other comm port to connect through pronterface, and that wouldn't appear either. I tried a different usb cable.
I apologize for the vagary of this post, but I'm honestly not sure where I went wrong.
When you plug in the duet, what sort of leds light up?
Have you unplugged everything from the main duet board?
ok when I plug in only the USB, i get a 5v light and the light between the reset button and the USB socket. Is there some jumper or something that I need to move to get it to work? And yes I unplugged the connections to the main board.
It looks like the 3.3v regulator that supplies power to the chip isn’t working. That’s usually because there is a short between the 3.3v rail and ground. Do you have a multimeter to test? And an external 3.3v supply?
And just so we are clear you have absolutely nothing connected to the duet board (eg all the endstops unplugged, etc)
ok so everything is now unplugged, completely, Now the 3.3v led is green and it is communicating with pronterface. Thank you very much. My guess is that I had an endstop plugged in improperly and it was shorting out the 3v rail. Does that seem about right?
Yep, happened to me.