Path: utzoo!attcan!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!cwjcc!gatech!purdue!decwrl!pyramid!prls!mips!sultra!dtynan From: dtynan@sultra.UUCP (Der Tynan) Newsgroups: comp.sys.nsc.32k Subject: Re: do it yourself project? Summary: I guess my mail bounced. Message-ID: <2644@sultra.UUCP> Date: 11 Nov 88 23:12:57 GMT References: <1268@cfa.cfa.harvard.EDU> Organization: Tynan Computers, Sunnyvale, CA Lines: 45 In article <1268@cfa.cfa.harvard.EDU>, ward@cfa.harvard.EDU (Steve Ward) writes: > > I prefer a single homogenous software environment using only the > selected 32K cpu. Still, the IBM PC bus and I/O harware can be > utilized by designing the CPU board to function with an IBM bus > passive backplane (you get them for $75 - $99), acting as the IBM > PC bus master. This gives you one software environment, but uses > all that PC hardware. Just pop out your PC mom board and pop in > a passive backplane. This isn't a bad idea either. The data I have received so far (Thanks to Steve Ligett) says that a bare PC board would cost ~$200 (including setup) if we could get 20 people interested. I still can't decide between a "plug-in" card, and a complete motherboard replacement. I guess I'm currently favoring the motherboard idea. Maybe some sort of vote is in order? A straight "co-processor" arrangement is a simpler design (read cheaper), because such nasties as DMA, etc, are already provided by the host 8088. > The first place to start is with a real design and I have only > heard D. Rand offer one, so far. Yeah, Dave how about some pricing (preliminary or otherwise) info? > For the record, nobody responded to > my posted message offering some CAE/CAD service toward a board > project - I called for direct email to me on it. Two messages > have been posted here that touch on my message. I am not sure > there is much interest in making a board, though there may be > interest in using a board, providing SOMEBODY ELSE makes it, > Steve W. ward@cfa.harvard.edu I guess you didn't get my mail. Hence I'm posting this. If you like, you can pretend I e-mailed it to you :-) I don't mind doing the design. Provided I get help/support. On top of that, the one thing I hate worse than wirewrapping, is slaving over schematics. If someone else wants the task of schematic generation, I'll happily send him/her some drawings on tissue paper :-) - Der -- dtynan@sultra.UUCP (Dermot Tynan @ Tynan Computers) {mips,pyramid}!sultra!dtynan --- God invented alcohol to keep the Irish from taking over the planet ---