Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!mit-eddie!bloom-beacon!eru!hagbard!sunic!news.funet.fi!fuug!mjolner!newshost!fekete From: fekete@tnds05.tele.nokia.fi (Zoltan Fekete) Newsgroups: comp.os.cpm Subject: Re: Motor on and Drive Select Message-ID: Date: 21 Feb 91 08:52:14 GMT References: <1991Feb19.133929.568@iowasp.physics.uiowa.edu> Sender: news@mjolner.tele.nokia.fi Distribution: comp Organization: Nokia Telecommunications Lines: 20 In-reply-to: syswtr@iowasp.physics.uiowa.edu's message of 19 Feb 91 19:39:28 GMT In article <1991Feb19.133929.568@iowasp.physics.uiowa.edu> syswtr@iowasp.physics.uiowa.edu writes: > Most of the floppy varieties I have seen are jumperable to allow the > MOTOR-ON signal to control the motor without also using DS. That is, > MOTOR-ON turns ALL motors on. This should eliminate any problems > with motor spin-up delays when moving from drive-to-drive. ---more text is deleted---- Sorry, you've probably missed the article which made me to write my one. I have also the experience, that you can always jumper a drive so, that it controls the motor only by Motor On. (But still most of them are not spinning if no disk is inserted. But this is now out of our interest, I think.) The problem comes if you don't have signal to drive Motor On. Then you can set the drive to control the motor by DS, but that in my opinion is dangerous, as I wrote it in my previous article. My ideas came for that case. I'm sorry if you just simply misunderstood me, quite probable that I wasn't clear enough. Zoltan fekete@tnds05.tele.nokia.fi Voice: +358 0 5116293