Article View: comp.sys.atari.st
Article #31956Re: Writing to the cartridge port.
From: Hartmut Semken
Date: Sun, 17 Apr 1988 18:05
Date: Sun, 17 Apr 1988 18:05
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In article <8804132155.AA23202@ucbvax.Berkeley.EDU> 440488@UOTTAWA.BITNET (Doctor Who) writes: > How did Alpha get around this so that the Megadisk would work with >out creating bus errors? It's easy: whenever you *read* the adress range from FC0000+ you actually *write* an adress to the adress bus, right? Now: read adress FC000+(A1) with (a1).b containig the data to be written. A simple PAL can write the Data into RAM. Works just fine as an I/O Port. I attached an IBM-PC hard disk controller (OMTI) to this I/O and use the interface for EC-BUS card as well. hase -- Hartmut Semken, Lupsteiner Weg 67, 1000 Berlin 37 (auf der Karte: links) hase@netmbx.UUCP I think, you may be right in what I think you're thinking. (Douglas Adams)
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!mcvax!unido!tub!tmpmbx!netmbx!hase From: hase@netmbx.UUCP (Hartmut Semken) Newsgroups: comp.sys.atari.st Subject: Re: Writing to the cartridge port. Message-ID: <1745@netmbx.UUCP> Date: 17 Apr 88 18:05:06 GMT References: <8804132155.AA23202@ucbvax.Berkeley.EDU> Reply-To: hase@netmbx.UUCP (Hartmut Semken) Organization: netmbx Public Access Unix, Berlin Lines: 18