Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!usc!jarthur!nntp-server.caltech.edu!gwoho
From: gwoho@nntp-server.caltech.edu (g liu)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: MFM/IDE: Peaceful coexistence possible?
Keywords: MFM IDE dual controllers
Message-ID: <1991Jan5.211043.19056@nntp-server.caltech.edu>
Date: 5 Jan 91 21:10:43 GMT
References: <22433@well.sf.ca.us>
Distribution: comp
Organization: California Institute of Technology, Pasadena
Lines: 22

mccarthy@well.sf.ca.us (Patrick McCarthy) writes:

>I recently purchased an IDE drive, which I would like to use in
>conjunction with my existing MFM drive.  My MFM controller has the
>ability to function at a different base address, but this doesn't
>seem to help.  Everyone I've talked to says they've heard it's possible,
>but none have ever actually done it.

>Anyone have any practical experience/advice?

you can do it if you write your own device driver, and set the dip switches
right, something i would rather not do, so i haven't.
if you have a copy of the yellow minix operating system book from prentice
hall, it have the source of a hd device driver in it. i dont know how
dos device drivers are put together, though.
if anyone knows an easier way, please let me know. i also want to use a
mfm+ide in my machine. 

>Thanks,

>Pat McCarthy
>mccarthy@well.sf.ca.us