Dis and advance

[Pat Ford]

Hi All:
 I was thinking (rare but does happen) what does the signal from the dis 
module to the computer look like and what the the computer send back as 
an advance signal. What I'd like to do is make a small advance box that
I can put a simple advance curve into and have it control the advance.

Thanks

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Pat Ford                           email: pford at qnx.com
QNX Software Systems, Ltd.           WWW: http://www.qnx.com
(613) 591-0931      (voice)         mail: 175 Terrence Matthews          
(613) 591-3579      (fax)                 Kanata, Ontario, Canada K2M 1W8