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Re: [lpc2000] Re: Internal Watchdog - pros and cons

2004-07-09 by Robert Adsett

At 10:13 PM 7/9/04 +0000, you wrote:
>--- In lpc2000@yahoogroups.com, "mjbcswitzerland"
><mjbcswitzerland@y...> wrote:

<snip>

>I don't understand why Philips bothered to protect the WDEN and
>WDRESET bits without protecting the WDTC register!

To be fair, they are hardly alone in this.  A lot of microprocessor 
watchdogs allow changing the time period during operation (usually with a 
single write).  It seems to me I've heard that a few even allow the WDT to 
be disabled after it's been enabled but I've not run into those.

They're still useful but not as robust as I would like.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III

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