[Coco] Gal Logic

[peak at mail.polarcomm.com]

Mark
I plan to use OPAL Jr. software with a homebuilt GAL blaster
because I am a cheapskate and because of the fun and the 
learning experience. If possible I would like to put the 
clock generator into the same GAL chip with an address 
decoder for a Mini-Coco. Will all of this fit into a 22V10 or 
do I need a larger chip?
Eric


---- Original message ----
>Date: Thu, 29 Jan 2004 23:35:03 -0600
>From: Mark Marlette <mmarlett at isd.net>  
>Subject: Re: [Coco] Gal Logic  
>To: CoCoList for Color Computer Enthusiasts 
<coco at maltedmedia.com>
>
>At 11:55 AM 1/29/2004 -0600, you wrote:
>
>I do. Whgt development tools are you using? Abel? Most of 
what you are 
>trying to do are operators. What is your target device? How 
are you going 
>to program it once you have the equations written and 
compiled? Programmers 
>run $100- $50k depending on what you want to do and how 
many. Mine is $1300.
>
>??
>
>Regards,
>
>Mark
>Cloud-9
>
>
>>Does anyone know how to program a coco type clock generator
>>into a GAL chip? I understand combinational logic fairly
>>well, and am able to use "boolean" logic equations. My
>>understanding of "clocked" OR "Registered" logic is a bit
>>rusty.
>>What I want do do is build a dual J-K flip flop E and Q 
clock
>>generator in a GAL device not in TTL!
>>Also is there a library somewhere of equations for flipflops
>>etc?
>>Eric
>>KB0LXY
>>
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>
>
>
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