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Unread 20-02-2010, 20:57
Merle Merle is offline
FRC Mentor, FLL Coach
FRC #3146 (GRUNTS)
Team Role: Engineer
 
Join Date: Jan 2003
Rookie Year: 2002
Location: Granby, CT
Posts: 42
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Re: Desperate for watchdog help

I want to issue a warning to any teams experiencing intermittent watchdog timer issues... while you may see minor glitches in motion or relay actions while practicing with your router wireless connection, when you operate with the FIRST Field setup computer system (ie. when your at a competition) when you experience a watchdog error, the field system will shut down your communication for the rest of the match. We experienced this in multiple rounds at the Suffield Scrimmage today which uses the official field setup control.

So, If you are experiencing watchdog errors you MUST resolve this before competition, or you will have a dead robot on the field following your first watchdog error.

We were finally able to elimate our issue (we saw 1-4 watchdog errors per minute) by removing all unused code (LabView - we weren't using the camera, gyro, and some other solenoid controls that we dont have installed on the bot yet). We will be adding in some of our other code step by step later to see what might be causing the errors we saw. BTW, our errors were System Watchdog errors (I disabled the User watchdog for a period, but still got system type errors).

Merle Yoder
GRUNTS Team 3146
Granby, CT
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