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- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!munnari.oz.au!bunyip.cc.uq.oz.au!marlin.jcu.edu.au!phsjs
- From: phsjs@marlin.jcu.edu.au (Stephen J.Smith)
- Subject: Re: Looking for Prototyping board
- Message-ID: <1992Aug28.031614.23528@marlin.jcu.edu.au>
- Organization: James Cook University
- References: <RVILLARI.92Aug26223931@lynx.cat.syr.EDU> <ERICJ.92Aug27174455@lagos.cfsat.Honeywell.COM> <l9qsh0INNfph@aludra.usc.edu> <ERICJ.92Aug27184547@lagos.cfsat.Honeywell.COM>
- Date: Fri, 28 Aug 92 03:16:14 GMT
- Lines: 58
-
- In <ERICJ.92Aug27184547@lagos.cfsat.Honeywell.COM> ericj@hwcae.Honeywell.COM (Eric Jacobsen) writes:
-
- >In article <l9qsh0INNfph@aludra.usc.edu> aliu@aludra.usc.edu (Alex Liu) writes:
-
- > I wonder, is there a prototyping board that comes with an Autoconfig
- > circuit? I am not too keen with PALs, so I can't make an fully
- > autoconfig board.
-
- > Making a prototyping board with hard coded address is not too hard, but
- > that is not the amiga way.
-
- > At any event, can anybody give me (or post) a set of PAL equations
- > or some cuircuitry to do Autoconfig? (I would assume this is oneof
- > the most basic Amiga circuits)
-
- >I certainly understand your concerns. Anyway, even if you had a board
- >with the autoconfig (which would really be nice), you still have to
- >burn a PAL so the autoconfig can get the manufacturer's number (or
- >whatever they call that code now), which tells the software what
- >driver to load for the card. If you don't have an assigned #, you can
- >fake one as long as it doesn't conflict with anything else in your
- >machine.
-
- There is a manufacture number that can be used for test purposes when
- designing a test board. It is 2011 (dec) or 7DB (hex). It is used
- as a "hackers ID" for preliminary boards. We used it here for a
- data acquisition board made not so long ago.
- It was fun to see it appear as "Unknown" with Showcards or SysInfo.
-
-
- >CATS used to publish a little book with the expansion specifications
- >and A1000 schematics all together. This is a good reference and gives
- >an example design with an autoconfigure circuit, PAL eqn's, etc. I
- >think the technical manuals for the A2000 also have the PAL equations.
-
- >If we're nice maybe somebody will post CATS' address, ph #, etc,
- >(I don't have it here).
- >--
-
- Yes, the Amiga Techincal Reference Manual has most of the info you
- need to make up a board, including PAL equations.
-
- >*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
- >* Eric Jacobsen Honeywell Inc. *
- >| 1-602-436-3941 Commercial Flight Systems, Air Transport |
- >* HVN 436-3941 US Mail: P.O. Box 21111, MS 2Q34C1 *
- >| FAX 1-602-436-1310 Phoenix AZ 85036-1111 |
- >* INet: ericj@hwcae.honeywell.com *
- >| UUCP: uunet!hwcae.honeywell.com!ericj@uunet.uu.net |
- >* The opinions expressed are my own and therefore better *
- >| thought out than my employer's. |
- >*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
-
- --
- Stephen J. Smith Technical Officer phsjs@marlin.jcu.edu.au
- Physics Department
- James Cook University
- Townsville QLD 4811
-