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Subject: Disk is accessed every 1/2 second -- Battery runs out of power (Jukebox Recorder)
From: Gerd Gabriel (gerd.gabriel_at_t-online.de)
Date: 2004-09-10


Hi,

my disk is accessed every half second - I can see the red light blinking
without interruption and can hear that disk is running all the time.
This happens with all versions that I've tested (rockbox 2.2, daily build,
bleeding edge etc. from different dates).

Testing this and that I found out that
         [F1] -> Info -> Debug -> View mp3 thread
tells me the following:

         read: 7C000
         write: 7BFFE
         swap: 7BFFE
         playing: 1
         playable: C5F62
         unswapped: 0
         ################################################
         #################################################
         wm: DA6DF - BE000

Please note that the second bar reaches until the right end of the archos
screen (I suppose that this represents the internal buffer but of course I'm
not sure about it because I'm not a rockbox developer).

*Sometimes* some times later the second bar goes back to
         #############################

and the upper bar then changes over time from
from #################################################
to ############################################
to #######################################
to ##################################
to #############################
to ########################

then the disk spins up and the upper bar is fullfilled again till to the
right end.

I also watched the "Disk spinup time" (Hitachi 60GB disk) which changes from
0 to 2800 and some other values inbetween.
I could see the the filling state of the second bar does *not* depend on the
current value of the disk spinup time.

I have the obscure feeling that this occures during track change(?)

My mp3 files are coded from 192kBit to 320kBit.

As an effect of this battery runs out of power after less than 2 hours.
When running Archos firmware (F1 + ON at boot) disk is accessed every 1
minute and battery runs out of power after 16 hours.

Regards,
Gerd

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