Reusing old floppy *drives*
pete at dunnington.plus.com
Tue Mar 23 13:31:42 CDT 2010
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
University of York
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