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From: syswtr@iowasp.physics.uiowa.edu
Newsgroups: comp.os.cpm
Subject: Re: Motor on and Drive Select
Message-ID: <1991Feb19.133929.568@iowasp.physics.uiowa.edu>
Date: 19 Feb 91 19:39:28 GMT
References: <FEKETE.91Feb19110642@tnds05.tele.nokia.fi>
Distribution: comp
Organization: Department of Physics and Astronomy, University of Iowa
Lines: 9


  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.
  In some of the older 8" systems we have about, I set the 8" drives
to all load the head at the same time (whenever head-load was asserted)
to eliminate head settling delay when moving from drive to drive.
Willy