> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf
> Of IB Peter Feucht
> Sent: 10 October 2011 14:27
> To: 'Microcontroller discussion list - Public.'
> Subject: AW: [PIC:] Distinction between RESET and BOWNOUT
>=20
> Hi,
>=20
> thanks anybody for the hints, very helpful!
>=20
> 1. I read paragraph 12.3.5. but when 12.3.6. started with power-up stuff =
I
> stopped read=EDng, power UP was not my problem. I learned: Better read so=
me
> pages more.
>=20
> 2. Some guys were discussing, if BOR is useful for battery detection. Yes=
,
> you are right, if the circuitry is always operated in "full power mode".
> In
> this case it will never leave the brown out condition. But in my device
> the
> user starts the software by a key press, then it's operating for 15 or 20
> minutes, consuming much power, but after that it goes to sleep mode,
> consuming nearly zero amps. During this sleep the batteries may recover

Make sure you check the datasheet for your part; the BOR peripheral takes a=
 significant amount of current in most PIC's when it's enabled.  In the nan=
o-watt devices the difference is especialy large e.g. ~1nA with it disabled=
, 1uA with it enabled.

Mike

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