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Unread 25-01-2011, 00:27
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Bethie42 Bethie42 is offline
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AKA: Bethany Carlson
FRC #0956 (Eagle Cybertechnology)
Team Role: Alumni
 
Join Date: Dec 2009
Rookie Year: 2008
Location: Oregon
Posts: 126
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Re: Watchdog replaced with MotorSafety?

Quote:
Originally Posted by Alan Anderson View Post
It's a very good hunch. The first year of the cRIO control system, there were a few teams at the DC Regional that consistently lost communication with the field as soon as they tried moving. I worked with one team that had their WGA mounted RIGHT next to a speed controller, and relocating it solved the problem for their last few matches. I'm told that another team heard about the problem and fixed it the same way.

You're probably losing communication briefly whenever that Jaguar is told to activate the motor, resulting in the system watchdog triggering.
YAYY thank you! We're going to test that out tomorrow. And thanks a lot for the link to the previous post. Watchpuppies huh.....fun We do have some pneumatics, would those count as watchpuppy-whelping actuators as well? Well I should be able to dig into the WPILib sourcecode and find out easily enough.

Yeah, we've had watchdogs occur both right at startup, and after a predictable time lapse. We'll move the Jag.....we joked about sticking the router right at the top of our elevator system, heh....would about six inches be far enough, do you think? I think that is how far the router is from our drive-motor PWMs. And we'll sure take that into consideration when building the new chassis.

Again, thanks very much. I really appreciate your taking the time to respond. I'll report back here as to our success.

... Yay watchpuppies!
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Team 956: Celebrating ten years of FIRST!

Code:
Team record 2002-2011
2002: Highest Rookie Seed, AOR
2003, 2006, 2012: Xerox Creativity Award, AOR
2006: Semi-finalist, Sacramento Regional
2009: Quarter-finalist, AOR
2010: Quarter-finalist, AOR
2011: Semi-finalist, AOR, and Dean's List finalist, AOR 

Personal record: 
2008: Lead scout
2009: Lead scout, publicity
2010: Lead scout, publicity, fundraising, Chairman's, videography
2011: Team captain, lead programmer, fundraising, Chairman's, publicity, wrench-turning, Dean's List finalist at Autodesk Oregon Regional
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