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- Path: FreeNet.Carleton.CA!de351
- From: de351@FreeNet.Carleton.CA (K. C. Lee)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Zorro II for 500+
- Date: 9 Apr 1996 18:36:02 GMT
- Organization: The National Capital FreeNet
- Sender: de351@freenet3.carleton.ca (K. C. Lee)
- Message-ID: <4keami$lih@freenet-news.carleton.ca>
- References: <4k6bfn$302@orac.sunderland.ac.uk>
- Reply-To: de351@FreeNet.Carleton.CA (K. C. Lee)
- NNTP-Posting-Host: freenet3.carleton.ca
-
- Simon Hortop (cb4sho@isis.sund.ac.uk) writes:
- >
- > I know this is not really the right group for hardware questions, but I'm
-
- Wouldn't comp.sys.amiga.hardware be a better place ? I guess it is too
- obvious.
-
- > I'm at the stage where I can start making a PCB, what I need help with is
- > buffering the signals and connecting a BUSTER if I can get hold of one.
-
- Take a look at the A500/A2000 Tech manual (or the A2000 manual) for the
- schematics. You should be able to find Buster from mail order or repair
- places. Failing that, take a look at the A2000 (not to be comfused with
- B2000) which implements the buster with PALs.
-
- > Also I was thinking that it may be beneficial to have a rats nest of
- > cables(instead of a pretty ribbon?) from the 500 m/b to the PCB, because this
- > should cut down on cross talk?!?
-
- What kind of signals are you trying to get from the motherboard ? Aside
- from the interrupts line and may be 28MHz clock, you should have most of
- the stuff you need for a real Zorro II from the 86pin connector. A lot of
- the people simply make a unbuffered subset of ZII by regenerating the clocks
- with a 74F86. ^^^^^^^^^^^^^^^^^
-
- I guess you'll have to try to keep the wire short...
-
- > /---------simon.hortop@isis.sund.ac.uk-------------\
-
- K. C. Lee
-
-