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Subject: Re: Testers wanted: up to 50% greater battery life
From: TP Diffenbach (
Date: 2003-07-30


> > > You may exploit partial screen update instead of the full thing, if not
> > > already done.
> >
> > I suspect that if we're going to update, we should just update.
> Don't underestimate what a strenuous operation the screen update is. There
> are 7168 pixels to be updated, all with bit-banging a serial protocol "by
> hand". The settings update is probably nothing compared to this.

Oh dear. Is the update smart enough to not update non-scrolling, non-changing lines?


The settings code may or may not take longer; the salient point is the settings code really isn't needed except for two of the <however many settings there are now>. The other salient point is that we swouldn't need to do this at all if we could do a clean shutdown that saved settings.

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Page was last modified "Jan 10 2012" The Rockbox Crew