>In all the recent discussions about rotary encoders, I don't think I ever
>saw anyone mention Cinematronics. The reason this comes to mind now, sev-
>eral weeks later, is that I just started work on connecting a Boxing Bugs
>board set to my Cosmic Chasm. Both of which use rotary encoders, neither
>of which were mentioned above.
Ahhh! More to the list!
Well, I took a look at this this last weekend (too hot to work in the
garage or outside so I had to find something indoors where the AC is :-)
and have the following operational:
Processor: PIC 16C54 (since I had the nice Windows based simulator I had
to use it... ;-)
Code is currently at 134 words (of 512 total). It supports the following:
Input: quadrature signal (2 lines TTL level), 2 mode select lines
Output:
Mode0: "raw" 8-bit count (like TRON)
Mode1: "G-80" 7 bit count plus direction bit
Mode2: "Omega Race/Clk&Dir" 6 bit grey-code. Also clock&direction
Mode3: TBD
Now then, I need a little help/advise... What four modes should I pick to
support? Looks like there's some more possibilities--
Midway "Kick" four bit something or other. Anyone have a schematic?
Cinematronics spinner. (That is, if it's other than quadrature)
Anything else?
Also, I could really use a copy of the Omega Race schematics if anyone can
spare a set, or scan and post them. I need to get a board working to make
sure this greycode table is right...
Anyway, thanks in advance...
-Clay
Clayton N. Cowgill Engineering Manager
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