----- Original Message ----- 
From: "Olin Lathrop" <olin_piclist@embedinc.com>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Wednesday, October 27, 2004 7:56 AM
Subject: Re: [PIC] Reset IC - how necessary? WDT Importance


> Bob Axtell wrote:
>> While it IS a good idea to rewrite the TRIS resisters often (and I do),
>
> A good idea in your opinion apparently.  Others here disagree.  I 
> personally
> find such tactics silly.
>
> Exactly what failure are you trying to protect against?  If you're worried
> about an ESD event or something flipping a bit, why is TRIS special?

Maybe because a flipped TRIS bit can result in hardware damage??

Bob Ammerman
RAm Systems

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