erik malund wrote:
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"once the watchdog is started it can not be disabled"
and "to feed the puppy you must make two consequitve (recommend disabling interrups ) writes of a5 and 5a to sfr xxx."

I consider that mechaninsm much safer than the just toggle a bit that an external watchdog requires.

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But whats there even if we toggle the bit ,the chances that the toggling will struck is say 1 out of 1000000000 ? .