Article View: comp.sys.amiga.tech
Article #12258Re: Ohhh, just another hack idea.
From: Frank Eigler
Date: Wed, 19 Apr 1989 20:54
Date: Wed, 19 Apr 1989 20:54
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1872 bytes
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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Path: arc1-ca.pugleaf.net!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