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Subject: Re: Use SLEEP instruction for longer (?) runtime
From: Andrew Jamieson (ajamiesn_at_optusnet.com.au)
Date: 2003-01-22


Yep. About 10mA on the nose, and this difference is true both whilst
playing music and idle. I'd be interested to see what the difference was
without the busy LED.

A

----- Original Message -----
From: "Andrew Jamieson" <andrew.jamieson_at_projectlab.net>
To: <rockbox_at_cool.haxx.se>
Sent: Wednesday, January 22, 2003 3:16 PM
Subject: Re: Use SLEEP instruction for longer (?) runtime

> Initial tests seem to indicate that it saves ~10mA off the average current
> when sleep is set on (130mA avg -> 120mA when sleep on). Some of this
> decrease will be due to red LED not being on all the time tho, but that is
> probably only around 1mA, which may very well fall off the edge of my
> testing resolution at the moment. More precise testing will have to wait
> until I get home ...
>
> Andrew Jamieson
>
> ----- Original Message -----
> From: "Simon ElÚn" <simel346_at_student.liu.se>
> To: <rockbox_at_cool.haxx.se>
> Sent: Wednesday, January 22, 2003 1:02 PM
> Subject: Re: Use SLEEP instruction for longer (?) runtime
>
>
> > Andrew, Joaquim: I've placed compiled versions for player and recorder
at
> > http://www.cyd.liu.se/~simel346/
> >
> > I've only tested the code on a recorder. This build is compiled with
> > USE_LED_FOR_CPU_BUSY, so you should be able to see different parts of
> > rockbox consuming different amounts of CPU time. There's a new choice at
> the
> > bottom of the main menu to turn CPU sleep on/off, it always starts
> disabled
> > after booting.
> >
> > --
> > Simon ElÚn
> >
> >
>



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