Erik said:
If your supervisor fires YOU HAVE A DESIGN ERROR or a component gone bad.

That's not true, Erik!

I stick to it.

Now, to expand, if the supervisor fires because of mains voltage dips, interruptions and fluctuations, which are totally unpredictable. that would be of the same group as a "component gone bad" although, strictly speaking it is not a "component".

The point is not that the supervisor should never fire, but that if it fires SOMETHING IS WRONG. If you get supervisor resets because of ESD the problem may be a "design error" not in your circuit, but in the cabling, but STILL, if the supervisor fires it is NOT "horray, we saved this one" BUT "let us avoid that happening again".

What I am reacting to is the frequent occurance of using the supervisor to "fix a problem" which is totally abhorrent.

A predecssor of mine when told that the product suddenly reset said "good, it worked". It took me quite while to get all the "good, it worked" out of the product.

Erik