Path: utzoo!utgpu!water!watmath!clyde!att!ihnp4!cbmvax!bpa!burdvax!jtids!aspvax!eraps2
From: eraps2@aspvax.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: reading MAC drives on the Amiga
Message-ID: <1107@aspvax.UUCP>
Date: 25 May 88 08:08:03 GMT
Lines: 17


It was stated that the speed changes prevented the Amiga from reading
all the data on a MAC drive.  Back in the days of the Apple ][ (I
still have one BTW), some of the nasty protection schemes used to
change the drive speed.  By playing with the motor select line (ie,
pulsing it at various rates [pulse width modulation]) the drive speed
was controllable.  I did some playing about with the Amiga drive
hardware back under 1.1 writing a flux editor and there is certainly
no reason why the drive can't be slowed up in a controllable manner.
Speeding it up is another matter, but my understanding is that the
drive needs to be slowed down to read/write the disks.


"You and I are scientists professor,    Rob Ginn 
 we buy our right to experiment at      ...burdvax!jtids!aspvax!eraps2
 the cost of total responsibility"      ...sun!liberty!drexel!aspvax!eraps2
                      -- The Doctor     eraps1@nadc.arpa