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- Path: fch.wimsey.bc.ca!fch!dan
- From: dan@fch.wimsey.bc.ca (Dan Fandrich)
- Newsgroups: comp.sys.cbm
- Subject: Re: 1581 disks?
- Distribution: world
- Message-ID: <310763ad.192sn@fch.wimsey.bc.ca>
- Date: Thu, 25 Jan 1996 03:04:13 -0800
- References: <112@ppse.win-uk.net>
- Organization: Fandrich Cone Harvesters Ltd.
- Mime-Version: 1.0
- X-Newsreader: Simple News 1.92 [alpha4] (DOS)
- X-Posting-Software: UUPC/extended 1.12i inews (15Mar94 08:36)
-
- In article <112@ppse.win-uk.net> ppieroni@ppse.win-uk.net writes:
- >In article <3104b5bd.190sn@fch.wimsey.bc.ca>, Dan Fandrich (dan@fch.wimsey.bc.c>a) writes:
- >>It is, however, possible
- >>to read and write MFM disks in a 1541 drive but it requires adding a jumper
- >>to the board. The 1541 lets you bit-bang almost directly to the drive head
- >>which lets you get away with this trick.
- >
- > Tell us about that. A jumper you say?
-
- Yes, a jumper. It allows the clock rate to be doubled to 500 MHz so the
- MFM signals can be sampled properly by the GCR circuitry. Complete
- instructions and programs to read and write DOS disks (writing has some
- limitations) is available at <ftp://ftp.funet.fi/pub/cbm/transfer/1541-dos/>.
- Richard Hable wrote the software based on the MFM reading routines and
- modification I developed.
-
- >>> Dan
- --
- dan@fch.wimsey.bc.ca / MIME email ok / finger danf@vanbc.wimsey.com for pgp key
-