Thanks, Dave.  I couldn't see the forest for the trees.
Lance

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dave Tweed
> Sent: Sunday, April 20, 2003 11:38 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: PIC encoder simulator
>
>
> Lance Beck <lbeck@ROLFES.COM> wrote:
> > The encoder I want to simulate sends 60 pulses per shaft revolution.
> > ...
> > Am I missing something?
>
> Yes, a factor of 60. Your encoder converts RPM directly to PPS, so your
> pulse rate varies from 10 to 500 pps (not 600 to 30000).
>
> > Assuming the first problem can be solved, would a lookup table be the
> > easiest way to handle feeding values to whatever method I use
> to vary the
> > pulse times or is there a simpler way?
>
> Another good application for DDS techniques. Many references in the
> archives.
>
> -- Dave Tweed
>
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