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| From: Richard Atkinson
Date: 2001-05-06
Subject: Re: Question about SIDCARD schematics/ports
|
On Sun, 6 May 2001, Christian wrote:
> I will publish the circuit for the SID-card in the next days on my homepage
> www.solder-synergy.de. The GAL is very simple. You can also use a hardwired
> logic with LS30/LS138 or other to decode the adresses ($fd40-$fd5f is
> basis, $fe80-$fe9f is mirror of this, $fd50 is gameport (bit's for
> direction like C64) and $fd51-$fd5f is mirror of this.)
Are you still selling SIDcards? If not, I'll make one for myself as I finally have PCB design facilities.
(although files in Orcad, Protel, Gerber or whatever format would be
*incredibly* handy!)
Richard
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