Werner Terreblanche wrote:
>
> My battery powered 16C71 application is experiencing startup
> problems.  Every tenth or so time when I switch on power to the
> circuit, it just wouldn't start up.

Werner:

> Are you switching the battery with a switch? If you are, you need to
> deal with the enormous trash that accompanies the switch closure; many
> inexpensive switches bounce around for a long time. A power supply
> with the AC line switched doesn't usually exhibit poor behavior until
> powerdown, if at all (depends on the supply). This can be a problem if
> you expect to preserve information while powered down. Dallas has done
> a good job of dealing with this, and you can check their stuff for a
> good start at what needs to be done in this case.

Tom

Yes I am switching the battery with a switch.  I really hoped that
there would have been some sort of software solution, because I've
already got a bunch of PCB's made.

I experimented with it over the weekend, and it seems that switching the
Brownout detect and the Power up timer does reduce the effect quite
dramatically compared to leaving them switched off.  However, I'm not
sure if it completely solves the problem.

Thank you for your advice

Werner
--
Werner Terreblanche     http://www.aztec.co.za/users/werner
wterreb@plessey.co.za (work)  OR  werner@aztec.co.za  (home)
Plessey SA, PO Box 30451,Tokai 7966, Cape Town, South Africa
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Tel +27 21 7102251   Fax +27 21 721278   Cell +27 837255164
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