Post- GTA02
joerg
joerg.twinklephone at gmx.de
Fri Mar 21 11:39:41 CET 2008
Am Fr 21. März 2008 schrieb Andy Green:
> - gpg control packet
> Somebody in the thread at some point said:
> > On Fri, Mar 21, 2008 at 03:54:49AM +0100, joerg wrote:
> >
> >> I think, a 400MHz CPU plus Wolfson chip can do the magic (well,
diminished
> >> responsiveness while canceling echo. So what? We're in a call). ZyXEL
9600
> >> were able to cope with (transatlantic) echo.
> >
> >> Though I had no close look at it yet.
> >
> > If you are looking for something that will run on the CPU most of the
>
> It would be optimal if the whole GSM side could run autonomously and the
> CPU in fact unpowered / suspended during a call in the normal case (no
> listening sockets on Wifi for example).
Yep, i see. But we have to drive the LCM anyway during call, no?
Ok, clock for sth like echo cancellation will be higher than the minimum 12MHz
> I don't know what management traffic is needed to the telephony network
> during the call, hopefully it just needs service when the call
> completes, or you wake the CPU anyway from motion or touchpad because
> you are about to end the call from your side.
I think that's correct.
jOERG
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