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Re: Apple II IDE interface
- Subject: Re: Apple II IDE interface
- From: "Stephane Guillard" <stephane.guillard@steria.com>
- Date: Thu, 03 May 2001 07:14:02 GMT
- Newsgroups: comp.sys.apple2
- Organization: Steria
- References: <NWfy6.10$bE1.1485@nreader1.kpnqwest.net>
- Xref: newsfeed.google.com comp.sys.apple2:7706
> Hi all,
>
> I've designed a very simple but fully functional IDE interfacefr Apple II's.
> At the moment I run it in a IIe, but also tested it in a IIgs. The interface
> is based on standard 74LS chips, using 3 LS32, 1 LS04, 1 LS28 and 2 LS373,
> so there is no need for programming PALs. It can be built up for $5 or so.
> Schematics will be made available as soon as I have a bit of time to clean
> them up.
>
> The interface maps the full IDE registers as well as a MSB latch (IDE data
> transfer is 16 bit) in the 16 byte window of the slot in which it sits, so
> it is able to handle full 16 bit transfers (by latching MSB at LSB read time
> and reading it after LSB). Thus all IDE functions work (drive info query,
> 512 byte sector transfers etc.).
The shcematics and basic software should be available today at
http://s.guillard.free.fr
If anything is not OK then email me at stephane.guillard@steria.com
Please read the included html doc !-)
Kind regards,
--
Stephane Guillard - stephane.guillard@steria.com
--
St�phane GUILLARD - stephane.guillard@steria.fr
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