Date: Tue, 15 Apr 1997 19:21:32 +0200 (MET DST) From: Wilko Bulte <wilko@yedi.iaf.nl> To: imp@village.org (Warner Losh) Cc: msmith@atrad.adelaide.edu.au, chuckr@Journey2.mat.net, FreeBSD-Hackers@freebsd.org Subject: Re: floppy disks Message-ID: <199704151721.TAA00874@yedi.iaf.nl> In-Reply-To: <E0wGsX0-0007di-00@rover.village.org> from "Warner Losh" at Apr 14, 97 02:39:18 pm
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As Warner Losh wrote... > > In message <199704141556.BAA28512@genesis.atrad.adelaide.edu.au> Michael Smith writes: > : Hmm, my memory is a tad rusty here, but there was a time when nobody > : was agreeing on whether it was pin 2 or 32 that was the diskchange > : signal. Some vendors (eg. Atari) used to read the write-protect > : signal instead (and got tripped up by drive's that masked it with the > : disk-present sensor), but I would start by checking that pins 2 and 32 > : make it from the drive back to your controller, and if the floppy > : drive(s) are more than a year or two old, see if there's a "DC" jumper > : you can play with on them. > > That would be pin 34. Older disk drives used this for READY, while > newer ones use this for disk change. The only reason I know this has > to do with an obscure piece of computing history named the DEC Rainbow > 100b and RX-50 disk drives and trying to find 3.5" floppies that would > work with the controller in question. I have a spare RX50 ;-) Along with a PDP11/73 with Unix on it.. Wilko _ ____________________________________________________________________ | / o / / _ Bulte email: wilko@yedi.iaf.nl - Arnhem, The Netherlands |/|/ / / /( (_) Do, or do not. There is no 'try' - Yoda --------------------------------------------------------------------------
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