Re: Paul was right

One last thought.. Couldn't you do a quadrature to Grey encoder in
a 22V10, just by clocking the device with one of the quadrature inputs
and sampling the other quadrature input, or would you need some
filtering on the optical inputs as well to keep the clock input from
jittering?

I was looking at Bryan's Omega Race encoder again, and the way it
works is he has an oscillator sampling the interrupter inputs, then
applies those two bits as inputs to a prom/register state machine
which saves the previous state and goes to one of four new states
based on the input.

If someone ever did a new rotary encoder board for the Sega games,
you could probably scrunch the D flop,counter, buffer down to one
22v10 as well..

(and have an input for setting the number of pulses per revolution..)
Received on Thu Jul 24 11:55:00 1997