Re: Omega Race runs in simulation

> Get a copy of "Omega Race Position Encoder" from the spies web page
> It is a very nice description of building an optical encoder with
> a little EPROM/latch state machine that does the quadrature decoding
> and bit scrambling.
>
> I should have the rest of the encoder figured out later today, so
> I'll have the full decoding table then.

Is the bit pattern really grey-code? i.e. only one bit changes from one
position to the next. This would make sense. If it is, you could use an
up/down counter and 2 (I think 2) binary to grey-code converter chips.
Of course those chips are probably harder to come by than burning a prom
with a table - but there was a 74xxx part to do it.

Just my 2 cents.

BTW, I once had a chance to buy Omega Race for $80 but I passed <kick kick>

-- 
 ___   __   _   _  _
|   \ /  \ | | | || |       phkahler@oakland.edu     Engineer/Programmer
|  _/| || || |_| || |__     " What makes someone care so much?
|_|  |_||_| \___/ |____)      for things another man can just ignore. " -S.H.