RoboRIO unable to detect Jaguars wired through CAN

[Jefferson]

Originally Posted by Tyler Scheuble

We originally checked the colors and found them to be correct but we just swapped the wires and it caused us to lose communications to the PCM and the PDP which we had before.

You swapped the wires on the cables at the roboRio and at the PCM on the cable back to the Jaguar? You wouldn't have needed to change anything on the cable between the PCM and PDP.

Originally Posted by Tyler Scheuble

The thing about the situation that confuses me the most is we still have comms to the PCM and the PDP while the wires are hooked into the jags but it is almost like the roborio is ignoring them entirely.

See Omar's diagram. I definitely think that's what has happened. It happened to us at least twice during alpha/beta. This can happen becuase the Jaguars will pass the signal through even if they aren't able to communicate on the bus.