Chuck Guzis wrote:
On 13 Jun 2010 at 18:17, Tony Duell wrote:
Did any consumer-level operating system ever check spindle speed as
part of its normal operation? It would seem to be an easy check to
do while waiting for a drive to come ready.
Wouldn't that have been handled within the disk controler chip WD177x,
WD[1,2]79x or whatever, could be determined by counting the index pulses
and the time delay between them.
I guess the reason that the data seperator moved inside the disk
controler was the old chestnut of parts count, generally less parts
means lower cost.
Cheers.
Phill.
--
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !
"You can twist perceptions, but reality won't budge" -- Rush.