Cant connect to Rumba

[adamfilip]

Im running a Rumba board, I cannot seem to connect to Simplify3d machine control to the board. I have no issues connecting via usb from the Arduino IDE and the board shows up properly on Com3 on windows 10 64.

When i try to connect using simplify3d machine control on com3 it doesnt connect. I have tried all baud rates, tried other cables. but it flashes firmware fine. so that should make any difference.
also doesnt work with Printrun interface

Running marlin 1.1 RC4

[lakester]

Since you're running with a Windows machine, perhaps my comments don't apply, but...

I use Pronterface on OS/X, and I have a RUMBA. Also like you, Arduino worked fine going from Mac to RUMBA. And like you..., I couldn't get Pronterface to talk to the RUMBA. Baud settings on the Mac side made no difference.

So..., I set the baud on the firmware side, in Configuration.h:

#define BAUDRATE 115200

re-installed the firmware, and Pronterface has worked ever since.

HTH.

[adamfilip]

i had mine originally set to 115200 already.
also tried on a 2nd machine. and same issue.. using simplify3d or pronterface.. cant connect

[adamfilip]

Ok so i tried Repetier and it installed fine and I am able to connect fine with simplify 3d
reinstalled a fresh version of Marlin 1.1 RC3, same issue as RC4 & RC5 cant connect
I notice that when i try to connect with simplify3d the rumba resets.
if i turn off the startup command in simplify3d i am able to connect but it doesnt respond to GCode commands

[adamfilip]

finally figured out the problem. in Marlin I had set the Serial Port to 3 thinking it was the same thing as the com port for my computer.
Once i switched it back to its defauly 0, it connected fine.