Rockbox mail archive
Subject: Re: Configurable disk spindown
From: Mike Soultanian (msoultan_at_csulb.edu)
I would think the faster it can change to the next track, the faster it
goes back in the pocket!
"George Styles (RipnetUK)" wrote:
> But doesnt the movement to sleep position protect the head against
> mechanical shock? arent you most likely to drop the thing while getting it
> out of pocket to change track?
> ----- Original Message -----
> From: "Uwe Freese" <mail_at_uwe-freese.de>
> To: "Björn Stenberg" <rockbox_at_cool.haxx.se>
> Sent: Monday, August 26, 2002 9:26 PM
> Subject: Configurable disk spindown
> > Hallo Björn,
> > Björn Stenberg schrieb am Monday, August 26, 2002, 3:21:16 PM:
> > BrS> Modified Files:
> > BrS> ata.c ata.h
> > BrS> Log Message:
> > BrS> Added configurable disk spindown. The disk will also now not spin
> > BrS> down while you are running around in the dir browser or pressing
> > BrS> buttons in the wps.
> > Really nice work so far! When it spins down or keeps spinned up
> > behaves exactly as I like it.
> > But: Not to spin up the disk speeds up dir-browsing ~ 2 sec or so, but
> > the drive moves its heads to a "sleep" position when it doesn't read
> > something for about a second.
> > Moving the heads out of this sleep position before being ready for
> > reading (the next dir) takes about 1 second. (One can test this by
> > browsing several directories with a pause of some seconds and browsing
> > through several dirs /very/ quickly, so that the hdd doesn't move the
> > heads to the "sleep" position.)
> > Is it possible to prevent the disk to move it's heads to the "sleep"
> > position? I think of a do_something() method in ata.c that only reads
> > again the last sector that was read and that's called every 0.5
> > seconds in the loop before spinning down the disk.
> > Bye, Uwe.
College of the Arts
Page was last modified "Jan 10 2012" The Rockbox Crew