Unexplained intermittent CAN / 2CAN Jaguar problems at GSR

[drakesword]

346 had issues at DC as well. During a couple of matches the speed of the robot would unexpectedly drop or the robot would begin shuddering (not a high speed shudder that a PID issue would show but a slow 1 second on 1 second off type issue). Finally in one of our last matches the second half of the can bus did nothing.

What is the upper limit of temperature before the jags begin to shutdown?

We did some test with our robot and we are still coming up inconclusive.

First we ran the robot and got no errors.
Then we unplugged a jag while running and still had no errors.
Then we unplugged a terminator without errors.
Unplugged any jag-jag wire and the entire bus stopped (not just beyond the lost connection)
Finally we unplugged encoders and still had no error.

We were running v29.

During the build season we were using the older image and ran the chassis for over 30 minutes without problems (except the one time we blew a grey jag by going full forward to full reverse too fast)