Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!spool.mu.edu!uwm.edu!lll-winken!taco!hobbes.catt.ncsu.edu!kdarling From: kdarling@hobbes.catt.ncsu.edu (Kevin Darling) Newsgroups: comp.sys.amiga.misc Subject: Re: Adding an IBM type 3.5" High Density Drive to Amiga Message-ID: <1991May23.060435.23952@ncsu.edu> Date: 23 May 91 06:04:35 GMT Article-I.D.: ncsu.1991May23.060435.23952 References: <1991May7.002625.1696@tplrd.tpl.oz.au> <13613@exodus.Eng.Sun.COM> <1991May21.025924.4583@tplrd.tpl.oz.au> Sender: news@ncsu.edu (USENET News System) Organization: North Carolina State University Lines: 16 markb@tplrd.tpl.oz.au (Mark Bower) writes: > Why can't I use an external buffer/500 kHz bit rate sync circuit? Thats > what my 8 bit HD Floppy controller does thats sitting in my PC. Granted, > it's more involved than simply plugging in a drive and using it but it's > certainly not impossible. I thought there was a company selling HD floppies for the Amiga? Must mean it's possible (well heck, anything is possible as we all know! :) I'm no expert, but doesn't the Amiga floppy DMA only handle a couple of bytes per horz scan line? HD drives would output a byte every 32us, which doesn't leave enough slack, if my brain hasn't fried too much lately. Your idea of an external buffer sounds good. Or perhaps make a card with its own DMA circuit? regards - kevin