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Re: PID without the D
Quote:
Originally Posted by Joohoo
on that note, the PID loop, how fast do I really need it. Is the normal 26ms loop fast enough? or does this need to be faster?
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a) We've always done the PID loop in the 26ms loop, and it's worked for us.
b) Since you can't update the PWM outputs any faster[*] than every 26ms, I don't see how running your PID calculations any faster would be of help to you.
Why do you want to do just a PI loop? I've heard of people using just P, or PD, but never PI.
[*] Actually, you can update your PWM outputs faster, if you use PWMs 13-16 and your own pwm generation functions (or one from a non-IFI library)
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