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Unread 23-07-2012, 17:28
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Re: Odd PWM problem (Can't get full green)

Quote:
Originally Posted by EricVanWyk View Post
I'd check that the DSC is powered, and that you are using a Jaguar reference.

A mispowered DSC can 'give up' when over drawn, though I have not seen that present in this manner.

Using a Victor reference instead of a Jaguar will send a shorter pulse width for 1.0, which would be interpretted as less than 1. However, it would affect the reverse direction similarly.

The factory calibration for Jaguars should be good enough, I usually don't bother to recalibrate. Maybe you calibrated against something odd?
Thanks Eric,
We are getting normal voltage to the sidecar and to all three power rails on the sidecar.

We definitely have a Jaguar object in our program.

I know we don't normally need to recalibrate but we have done it a few times properly and it still won't give us full forward voltage.

Quote:
Originally Posted by BigJ View Post
Judging from the reach of things you've tried I'm assuming you've done these, but just in case you haven't: try switching batteries, and a quick cRIO reimage couldn't hurt. Are you noticing any weird behaviors on the dashboard (perhaps the Robot Code light flashing red for a split second sometimes? This happened to us once this season (after having the cRIO on for a few minutes) and would make the robot do strange things, but a reimage cleared it up.
Thanks Josh,
We have used several batteries during our troubleshooting (going on 3-4 hours now).

Reimaging the cRIO is something we haven't tried, I have my team doing it now. Thanks for the advice.
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