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- Xref: sparky comp.sys.amiga.hardware:22573 comp.sys.amiga.misc:19578
- Path: sparky!uunet!cbmvax!daveh
- From: daveh@cbmvax.commodore.com (Dave Haynie)
- Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.misc
- Subject: Re: Omnibus video solution
- Message-ID: <38389@cbmvax.commodore.com>
- Date: 7 Jan 93 17:59:34 GMT
- References: <17935@pitt.UUCP>
- Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
- Organization: Commodore, West Chester, PA
- Lines: 46
- Keywords: Omnibus, video, Amiga, A3000, availability
-
- In article <17935@pitt.UUCP> gwalborn@cs.pitt.edu (Gary Walborn) writes:
- >Ok, I am very interested in this Omnibus video card for the Amiga (thanks
- >for the info, Dave). Now the big question.... Where can I get one? How
- >much to they cost? Does anyone know of a vendor for this product? I am
- >REALLY curious now!
-
- I don't know of anyone distributing it in the USA yet. The card's inventor,
- Oliver Bausch, has recently managed to get a net address, so I suggest at this
- point that interested parties write him. The address is:
-
- obausch@green.t-informatik.ba-stuttgart.de
-
- For those who missed it, the oMniBus is what we call a "dumb Bridge Card"
- (I think Jeff Porter coined the phase) with special support for video. This
- card bridges between the Zorro and ISA buses, but it contains no CPU, just
- bus translation logic and some relays. The relays act as a software controller
- A/B switch for video. The outputs from a VGA and your Amiga go in, you
- monitor connects to the output of the oMniBus card.
-
- The software is the real key here. The card comes with two libraries,
- "isa.library" and "ivga.library", a 2.0-style Monitor file called "c5",
- and an IVGAPrefs preferences editor. The "isa.library" is apparently the
- Zorro to ISA bus management code, and the "ivga.library" is the VGA card
- management code. Anyway, you set things up and then fire up the IVGAPrefs
- program. This lets you set the desired scan rate for each of the supported
- VGA resolutions (mainly 640x480 through 1280x1024 with the TSENG card I
- have). When you run the ScreenMode prefs, those resolutions you've enabled
- here show up as standard Amiga display modes. Anything that lets you supply
- a screen mode (Workbench, for example) can now run on the VGA display. The
- oMniBus knows when its supposed to be displaying, so when you select Amiga
- generated screens, the A/B switch kicks over to the Amiga's output.
-
- There's also a utility to display "hi-color" pictures (16-bit direct), and
- they're working on some screen promotion tools and some other devices that
- can be managed on the ISA bus. I always looked at the ISA bus as being more
- important for this kind of thing (eg, cheap, standard hardware) than for
- PClone emulation, so I'm glad something like this is finally out and in my
- system (it's not the only one, I know about the Golden Gate board too, but
- the really cool part of oMniBus is all of Oliver's software).
-
- --
- Dave Haynie / Commodore Technology, High-End Amiga Systems Design (cool stuff)
- "The Crew That Never Rests" {uunet|pyramid|rutgers}!cbmvax!daveh BIX: hazy
- SCIENCE: "I'll believe it when I see it"
- RELIGION: "I'll see it when I believe it"
-
-