board not functioning

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peace
Posts: 2
Joined: Fri Apr 12, 2019 4:24 am

board not functioning

Post by peace » Fri Apr 12, 2019 4:35 am

I am running an Arduino uno r3 with grbl v.8 installed, a drv driver to a single stepper. on a fresh flash of grbl(thru Arduino ide) and a new board with a new drv driver everything worked correctly, after shutting off the unit and disconnecting from power and usb, I could not get ugs to recognize grbl. this happened 8 times on 4 different set ups. I would have to reprogram a bootloader thru the ide and reflash Arduino with grbl to get it to function again. everytime I disconnect same problem. so on the ugs side the com/baud number is correct, the pc recognizes the Arduino but I cannot send or receive to Arduino. I checked all connections about 100 times everything is 100% correct. this is strange. any ideas?

Bertus Kruger
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Re: board not functioning

Post by Bertus Kruger » Sun Apr 14, 2019 6:58 pm

peace wrote:
Fri Apr 12, 2019 4:35 am
I would have to reprogram a bootloader thru the ide and reflash Arduino with grbl to get it to function again.
This seems to be a Arduino issue where you are over writing the bootloaders when flashing GRBL...

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