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- Path: sparky!uunet!sun-barr!ames!purdue!news.cs.indiana.edu!umn.edu!deci.cs.umn.edu!hansen
- From: hansen@deci.cs.umn.edu (David M. Hansen)
- Newsgroups: comp.realtime
- Subject: Re: Booting dos from ROM
- Keywords: DOS ROM BOOT
- Message-ID: <1992Sep4.141656.29191@news2.cis.umn.edu>
- Date: 4 Sep 92 14:16:56 GMT
- References: <1992Aug31.232554.11595@noao.edu> <peter.715502243@citr.uq.oz.au>
- Sender: news@news2.cis.umn.edu (Usenet News Administration)
- Organization: University of Minnesota
- Lines: 48
-
- In article <peter.715502243@citr.uq.oz.au>, peter@citr.uq.oz.au (Peter Klavins) writes:
- |> cole@noao.edu (Lonnie Cole) writes:
- |>
- |> >I am posting this here because I intend to use a PC/XT board in a
- |> >realtime data acquisition project.
- |>
- |> >Does anyone know of instructions and or source in the public domain to
- |> >allow booting dos from a battery backed RAM disk or ROM disk. Any
- |> >pointers to code or docs would be greatly appreciated.
- |>
- |> Microsoft's MS-DOS OEM kit (you have to become an OEM) includes
- |> information on how to put DOS 5.0 into ROM so that you can have a
- |> completely diskless system boot up DOS. Of course, you ultimately have
- |> to have a file system somewhere from where to obtain the programs that
- |> you want to run once DOS is booted. A file system skeleton that works
- |> out of ROM is also included. (By skeleton I mean that you probably will
- |> need to add code to page bits if ROM in and out, or go off into above 1
- |> Mbyte memory space in order to get enough ROM to hold anything of useful
- |> size in.)
- |>
- |> Anyway, the kit worked very well, and systems based on it are now being
- |> sold commercially. But, the price is that you must become a Microsoft
- |> OEM.
- |> --
- |> ------------------------------------------------------------------------
- |> Peter Klavins Internet: peter@citr.uq.oz.au Fidonet: 3:640/821
- |> Centre for Information Technology Research Phone: +61 7 365 4321
- |> University of Queensland QLD 4072 Australia Fax: +61 7 365 4399
-
- A couple of other suggestions...
-
- I know of two companies which provide customizable BIOS's which could be
- used in embedded systems. Unfortunately, I don't have their addresses or
- phone numbers handy.
-
- One source is Annabooks. Their phone number was posted in this group a couple
- weeks ago.
-
- The other is General Software (I think... I hope...). The latest issue of
- Embedded Systems Programming plugs their new BIOS. This same company also
- sells a re-entrant embeddable DOS clone.
-
- Disclaimer: I haven't used any of this stuff, so I don't really know how good
- it is, let alone features and limitations.
-
- Hope this helps.
-
- -=Dave
-