Quote:
Originally Posted by kmusa
We just spent 2 days at Buckeye tracking down Jag-related issues, which ultimately turned out to be a loose wire in a power feed to one of them. (We have the black ones on our robot.)
There are CAN repeaters that would isolate the segments, but they seem pretty pricey for FRC applications.
|
In the particular circumstance you are describing, the issue was likely a result of talking to a jag that was (at least temporarily) not there. Which means that a star configuration would have the same issue.
The CAN signal will pass right through an un-powered Jag, they use a short tap on the bus internally, it is not passed through a chip on the board.
The other possibility is that your power issue was on the Jag doing the RS232->CAN bridging which does require powered circuitry.