Path: utzoo!mnetor!tmsoft!dptcdc!jarvis.csri.toronto.edu!ois.db.toronto.edu!fche
From: fche@db.toronto.edu (Frank Eigler)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Ohhh, just another hack idea.
Summary: Has anyone done RLL?
Keywords: Bigger floppy drive time
Message-ID: <89Apr19.165456edt.9318@ois.db.toronto.edu>
Date: 19 Apr 89 20:54:53 GMT
References: <10751@mcdphx.phx.mcd.mot.com>
Distribution: na
Organization: University of Toronto, CSRI
Lines: 29

In article <10751@mcdphx.phx.mcd.mot.com> dbk@teroach.UUCP (Dave Kinzer) writes:
>
>   Since nobody responded to the deeper FIFO question for a 2090a 
>(although I admit I posted in the no.tech group), I have come up with
>yet another hack project idea.
>
>   If one were to half the RPM rate of a 1.2meg 5.25 inch floppy 
>(or a 1.44meg 3.5 inch floppy), the Amiga floppy disk circuitry could
>still send at 250Kbits/sec and this would be deposited on the drive
>at the appropriate bit density (normal bit rate is 500Kbits/sec).
>This would allow more sectors to be placed per track on the drive.
>The question is, can the trackdisk.device handle reading/buffering/writing
>twice as many blocks per track as normal?  Can this just be specified
>in the MountList?


Another question, something in the same area.  Is it possible/has anyone
ever written a trackdisk.device replacement that uses RLL format instead
of MFM on a floppy?  It would probably be *very* useful.  1.44 megs, easy.

Or, is it possible with the hardware at all?

--Frank
-- 
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