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Originally Posted by nheft
Kevin,
Here is a follow up to my initial post on startup errors.
Suspecting a questionable RC, I did the following:
1. Loaded unmodified hex file from the latest frc_camera_s release
2. Verified that we still see the intermittent code error
3. Sent the controller back to IFI.
Tom Watson and Mark Lambert cycled power on the controller at IFI 150 times (75 with the backup battery and 75 without the backup battery) and they claim they can't duplicate the problem.
Since then, another team, 1566, has reported the exact same problem on this forum.
I have noticed that, strangely enough, when using a toggle switch instead of the HI-AMP kit breaker to power the RC up, the error becomes far less frequent.
Any ideas?
Thanks in advance.
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I think we can go on the assumption that it's not caused by the camera code directly. The only thing that immediately comes to mind is some kind of race condition where the processor comes out of reset before the oscillator is stabilized. If I get a chance, I'll call IFI today and see what can be done about this. As an experiment, you might try holding the processor in a reset state while powering up. Do it enough times to get real statistics.
-Kevin