Re: [stella] Programming Contest?

[Joe Grand <jgrand@xxxxxxxxxxxxxx>]

If I remember correctly, the driving paddles are actually rotary encoders. 
So CO10802 isn't just a rotary switch, but actually has one or two small 
discs inside it which will generate a 4-bit sequence (quadrature output, I 
think it's called). By looking at the sequence, one can determine which 
direction the device is turning. Looking at the schematic, only 2 of those 
pins are used to generate the sequence..

I remember seeing some sample source code somewhere for using the driving 
controllers somewhere in the Stella archives.. Maybe Bob Colbert's 
Stell-a-Sketch source..

Joe
http://www.mindspring.com/~jgrand/atari


At 08:19 PM 10/26/2001 -0400, Msorman@xxxxxxx wrote:
> Here's the driving controller schematic:
> http://members.aol.com/~Atari7800games3/drivingschematic.jpg
>
> Before you ask, I think CO10802 is just a standard rotary switch.
>
> Mitch
> Msorman@xxxxxxx
> http://atari7800.atari.org


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