Floppy drive pin 2 question? - test-drb@ccmp.vtda.org

10 Mar 2005

On Mar 10 2005, 20:33, Jules Richardson wrote:
...

 Just futzing around with this Manta board (SCSI floppy controller).

  The docs I have say that pin 2 of the floppy connector is normally an
...
  input to the controller from the drive, but that some
drives expect pin
...
  2 to be an output to the drive from the controller
(e.g. for changing
 rotation speed on a drive capable of 300 and 360rpm)

 That sounds wrong to me; surely most drives either don't use pin 2 for
...
  anything, or they expect it to be an output from the
controller (to cope
...
  with things like speed changes) 
Yes, but I believe some drives did use pin 2 to signal the controller
in some way.  I've never (knowingly) come across one, but I'm told some
Apple drives did this.

-- 
Pete						Peter Turnbull
						Network Manager
						University of York