23 Mar
2010
23 Mar
'10
6:31 p.m.
On 23/03/2010 17:35, Chuck Guzis wrote:
As far as select--while it's nice to have a drive
with select
jumpers, it's also possible to take an inexpensive drive that's
permanently wired as DS1 and simply swap the DS1 and DS0 lines at the
connector--not exactly the "IBM PC twist", because you want to leave
the motor conrol pins as-is. So the "twist" to get a DS1-only drive
to recognize DS0 would be the 3-wire bundle 12-13-14.
Er, no, DS0 is pin 10 so it would be 10-11-12. The "IBM twist" swaps
DS1 (Device Select B, in IBM parlance) and DS2 (Device Select A) rather
than DS0 and DS1, and additionally swaps MotorOn with DS0.
--
Pete Peter Turnbull
Network Manager
University of York