grbl/grbl — Issue #52: Grbl Freezes at Prompt
Author: Atrixium
Created: 2012-01-27 18:29:27+00:00
State: open

I managed to flash GRBL on to my Uno yesterday but ran into a problem when I was attempting to test it against my stepper drivers.

GRBL seems to freeze partway through the the init prompt, it goes as far as "Type '$' to dump c" and then stops and won't accept any commands. Occasionally if I reset the Uno it or unplug and re-plug the USB enough times I can get it to give me the full prompt at which point it will accept commands seemingly indefinitely but this is in the minority of cases.

I thought perhaps it was maybe a limitation of the Arduino IDE serial monitor so I decided to try it using Minicom instead but I got the exact same results.

I've read through Issue #8 which seems to be a similar issue but I believe the baud rate issue was corrected after that occured. I maye give it a try anyway when I get home. I also haven't tried 0.8a yet but I might give that a try as well.

I'm currently running Linux Mint 9 x64 (Ubuntu 10.04), an Arduino Uno DIP and the 1.0 IDE with grbl_0_7d_atmega328p_16mhz_9600.hex flashed to it.