Communication Trouble

[DavidGitz]

Originally Posted by jee7s

In the event the power connection isn't the cause...

This also sounds like it could be a watchdog expiration problem. Are you sure you are feeding the watchdog in your program?

Unless you have a specific need for it, there should be no reason to feed the watchdog in your code. This necessity was removed last year and now this is taken care of by the WPI Library functions themselves. This is true for Labview but I'm not sure of other programming languages (but I bet it is).

Can you describe the exact situation of how you lose communication? Does it happen after driving/moving the robot? Do you ever get to enable the robot? Does it happen when you Download and/or Deploy? Do you get any messages on the Diagnostics panel? Does it happen on wireless and wired connections? After this happens are you still able to ping the cRIO and/or the radio?

I'm not 100% sure here, but I think that if you are getting the "No Communications" red light that means your radio has lost connection, and should be independent of the cRIO (i.e. not a power connection problem on the cRIO).