grbl/grbl — Issue #69: Problem with flashed GRBL (EKitsZone UNO R3 (ATMEGA 328 / ATMEGA 16U))
Author: yurkomik
Created: 2012-03-01 12:29:48+00:00
State: open

Tried to load grbl https://github.com/chamnit/grbl/downloads
it's flashing original chip by Xloader, but all I can see is

"Grbl 0.8a
'$' to dump current settings"

I have no responce to any '$' commands ...no commands at all. I've tried many grbl firmwires. Results are the same.
is it possible that I have problem because of ATMEGA 16U or NXP OPAMP?

my board is http://www.ebay.com/itm/EKitsZone-UNO-R3-ATMEGA-328-ATMEGA-16U-Fully-Compatible-with-Arduino-UNO-R3-/230749072250?pt=BI_Electrical_Equipment_Tools&hash=item35b9b76b7a#ht_1144wt_1185

"The EKitsZone UNO is 100% compatible with Arduino Uno R3 with some enhancement. It replaced the LM358D with a fast response NXP OPAMP. The new OPAMP is 10 times faster than LM358D in term of dv/dt. The UNO is using the Atmega16U2 as a USB-to-serial converter."

my upload code is: -F -v -pm328p -cstk500v1 -P\\.\COM4 -b115200 -D -Uflash:w:"C:\Users\Yurij\Downloads\grbl-latest.hex":i

is it compatibility problem?