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Unread 23-02-2010, 01:32
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Tom Line Tom Line is offline
Raptors can't turn doorknobs.
FRC #1718 (The Fighting Pi)
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 1999
Location: Armada, Michigan
Posts: 2,517
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Re: Still having some watchdog issues

Our situation:

We have 2 crios. One on the practice bot, one on the comp bot. We have been using the practice bot with no problems (no disables when we get the watchdog messages).

Today we wired up the comp board and put it on the comp bot. Before we connected the victors to the drive motors, we powered everything up and downloaded the code to confirm function.

Every time we see a new "watchdog expired" message, all the victors "blink" for a second. The odd part is, they don't blink to disabled. Somestime they blink to red, sometimes to green... the blink is 100% irregular. We tried a new battery, rewired all the power wires to confirm no clamping on insultation, wiggled every circuit on the board to attempt to isolate the problem, unplugged every pwm except one and still had the problem on that one.

We just went through and reimaged to the newest image last night, plus the newest DS, and we're going to try tomorrow again before ship. However, I found it very odd that with the same code and the same DS the Crio's are acting differently, one blinking the victors during the watchdog expires and one not.
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