Re: Low Power Mode & Wake-Up Timer by Chris
Chris
Sun May 30 08:07:09 CDT 2004
That I can't say, as I don't really use PPCs. The only thing that should be
"on" is DRAM refresh, so power draw should be in the single-digit microamps,
so if you have the mAh rating of the battery you should be able to get an
idea. I'd guess a week or so.
-Chris
"Geir Ove" <geirAoves@online.no> wrote in message
news:fPhuc.4736$eH3.83061@news4.e.nsc.no...
> Hello,
>
> Thanks a lot Chris :-) What is the typical battery life in "standby" or
> "off" mode?
>
>
> Geir Ove
>
> "Chris Tacke, eMVP" <ctacke[at]Open_NET_CF[dot]org> wrote in message
> news:%23tMzY2fREHA.3608@TK2MSFTNGP10.phx.gbl...
> > Actually any PPC should be able to exhibit this behavior. They never
> > actually turn off, they just go into Sleep mode, which is a very low
power
> > state. You can set a wake timer with something like CeRunAppAtTime or
> > CeSetUserNotification to run your process periodically.
> >
> > -Chris
> >
> >
> > "Geir Ove" <geirAoves@online.no> wrote in message
> > news:t94uc.4692$eH3.81889@news4.e.nsc.no...
> > > Hello,
> > >
> > > I am looking for a PDA.with GSM / GPRS support, preferably Pocket PC
> based
> > > that I can switch to Low Power mode. I am then talking EXTREMELY LOW
> POWER
> > > (not 200 mhz), where the batteries will last for days or even weeks.
The
> > > only program that should be run in this mode, is a Timer that can WAKE
> UP
> > > the PDA let's say every 1 or 5 hours and let it collect and send some
> data
> > > via GSM / GPRS and then go back to LOW POWER MODE again.
> > >
> > > Is there any such device around, or is this somethign "any". Pocket PC
> > > device can do?
> > >
> > > It would be possible to do on virtually any device if :
> > >
> > > a) The CPU speed could be controlled via software from FULL SPEED (400
> > Mhz)
> > > down to a few tens of Khz.
> > >
> > >
> > > Thanks in advance for any help :-)
> > >
> > >
> > > Geir Ove
> > > Norway
> > >
> > >
> >
> >
>
>