PET extensions

From: Andre Fachat (
Date: 1998-03-25 09:05:14

Ethan Dicks wrote:
> Traditionally, RS232 was implemented on PETs with either an IEEE488
> box (I have a couple) or a board that piggybacks into a ROM socket
> and taps R/W from somewhere (I have an ACIA board like that, too).

I once made an IEEE488 cartridge for the Atari ST ROM port, without
tapping R/W. reading from a block of 256 addresses is outputting data
on the address lines :-)


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Andre Fachat, Institute of physics, Technische Universitšt Chemnitz, FRG

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