=20
Resend, tag added, sorry.

=20
Dear Piccers,

I developped a small battery operated device, using a 16F684, everything
works fine. Now the customer shows up, and wants to have any sort of
batt-low indication. For already 1000 PCS are made and assembled, there ist
no chance to make any hardware modifications. Even more, there is no room
left on the PCB to add any components and I also have no PIC pins left for
any batt voltage detection.
Now the 684 has an brown out reset, which is pricipally doing what I want,
but I see no possibility to distict between a "cold boot reset" (made when
e.g. batteries are changed) and brown out reset.
In case of a cold boot reset the devide should work normally, but when a
brownout occured, I'd like to simply disable any further operation until ne=
w
batteries are inserted.

Does anybody have an idea, know of any sort of "hidden features", any sort
of dirty tricks to make this?

Thanks for any help.

Peter

--
http://www.piclist.com PIC/SX FAQ & list archive View/change your membershi=
p
options at http://mailman.mit.edu/mailman/listinfo/piclist

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.