[A83] Re: Battery checking

To: assembly-83@lists.ticalc.org
Subject: [A83] Re: Battery checking
From: "The one and only SUCKER ..." <sucker_pvn@hotmail.com>
Date: Tue, 28 Aug 2001 20:28:53 +0000
Reply-To: assembly-83@lists.ticalc.org


With other words, there will be no descent(?) battery
checking on the TI-83(-)(SE). Only by checking the contrast.

    SUCKER

>The hardware necessary to test the battery status (aka Voltage-meter) has 
>not been built-in into the calculator. Actually there is one, but it only 
>indicates wheter batteries are low or not. The port that indicates this, 
>is, at least on the 83-, port 14h. If bit 0 if this port is set, your 
>batteries are OK, if not then they aren't.
>
> > ----------------------------------------
> > From: The one and only SUCKER ... <sucker_pvn@hotmail.com>
> >
> > The only way you can do something right now,
> > is to check the contrast status. If you keep this up
> > to date it would show how much life is left. But I also
> > wondered how to do it the right way. Maybe somebody can
> > ask it somewhere where they make mobile phones or such
> > thing that show the state of the battery. They could give
> > some code how to get the exact state. Or maybe it's built
> > into the processor of such devices...
> >
> >    SUCKER
> >
> > >I know how I can detect whether the batteries are low or not, but is it
> > >also
> > >possible to detect if it is for example half-full or 75% full, 
>something
> > >like that.
> > >
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