Re: Creating JEDEC files for PAL/GAL

From: Michał Pleban <>
Date: Fri, 04 May 2012 17:49:56 +0200
Message-ID: <>

Christian Dirks wrote:

> There is an existing 1 MB solution that replaces the on board 4164 RAM
> with 41256 and adds one 74S153. It installs RAM to banks 0-14.
> I have done it on my 610 but it is not fully working now. I think this
> is because i didn't have a 74S153 and used a HCT.
> Right now I have some 74S153, but I haven't had the time to work on it
> again.

Well, you can see for yourself that it is a bad solution - lots of 
soldering, desoldering and messing around, and still nothing works :-P

I want to create a proper expansion card to be placed into the expansion 
slot on the mainboard. No soldering, just plug&play ;-)


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Received on 2012-05-04 16:00:09

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