2008/8/6 Jeff Epler <[EMAIL PROTECTED]>
> To accurately read a quadrature signal you must sample it frequently
> enough that there is absolutely never more than one input transition per
> sample.............
Hi
Why aren't simple set-reset latches used? with interrupt on change? Then you
only need to act when something happens, instead of spending a lot of time
checking to see if it might happen, and you'll never miss a change, ever.
Add another simple circuit that will monitor
-another-trigger-before-latch-cleared-, and you will immediately be alterted
that the PC was not fast and missed a pulse.
Maybe it's the style of the algorithims that make this difficult?
Regards
Roland
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