26 Nov
2006
26 Nov
'06
7:42 a.m.
On 26 Nov 2006 at 9:44, Dave Dunfield wrote:
Many times over the years I've almost built this -
but I always find a
more HS disks. By using a tiny micro, you could:
- Lock to the speed of the drive and adjust as it changes
- Remember the last speed for each drive so you can quickly
approximate the indexes on the next access.
- Time the occurance of the first index pulse to avoid having
having to wait an entire revolution for the drive to come up
to speed in many cases.
The idea of a little PIC on a little paddle card for 5.25" is also
appealing for a couple of other uses, namely generating the TG43*
signal (I believe that someone already offers this) and generating a
READY* signal for drives not capable of generating one. The SECTOR*
signal would be gravy.
Forgive my non-authentic musings.
Cheers,
Chuck