10 Mar
2005
10 Mar
'05
3:29 p.m.
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