Date: Mon, 14 Apr 1997 14:39:18 -0600 From: Warner Losh <imp@village.org> To: Michael Smith <msmith@atrad.adelaide.edu.au> Cc: chuckr@Journey2.mat.net (Chuck Robey), FreeBSD-Hackers@freebsd.org Subject: Re: floppy disks Message-ID: <E0wGsX0-0007di-00@rover.village.org> In-Reply-To: Your message of "Tue, 15 Apr 1997 01:26:52 %2B0930." <199704141556.BAA28512@genesis.atrad.adelaide.edu.au> References: <199704141556.BAA28512@genesis.atrad.adelaide.edu.au>
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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. Warner
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