Quote:
Originally Posted by Vikesrock
I was by no means trying to say that the project is not worthwhile or that the rules won't be different next year. The limit switch input is a very simple, easy to use feature of the Jaguars that I hope will be opened up for our use even if the CAN bus isn't.
As you said, it is a fantastic learning opportunity even if the limit switches aren't allowed next year.
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Tx for the limit sw input... I wasn't sure about the status. Since we haven't tried using the limit sw's the JAG shutdown response is TBD anyway. I plan to chat with the Liminarymicro guys re the project. Maybe they have some ideas.
Some low duty cycle back_emf readings might be possible without a shutdown.
I was looking at a Vex motor waveform on my scope today and it looks like the back_emf is readable at low duty cycles. The reverse inductive spike has time to settle with the slow PWM frequency used in these motor controllers. I'm not so sure that this would be the case with the JAGs since the PWM is 15khz and the inductive time constant of the CIMS may be slower. (If anyone has a CIM01 inductance number I'd be interested in it.)