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Re: [AVR-Chat] Re:Crystals

2009-02-24 by Robert Adsett

David VanHorn wrote:
> On Mon, Feb 23, 2009 at 12:54 PM, David Appleton <englsprogeny@yahoo.com> wrote:
>>
>> Could we also do a timer test?
>> Is 10uSec really 10uSec?
> 
> The problem is that you have nothing to reference it to, other than
> the crystal, unless you have some independent external timebase.
> 
> A 60Hz line signal would do, 32kHz crystal...
> 
> The WDT is good for detecting the system running slower than it
> should, but not for faster!

You mean like this?

http://focus.ti.com/lit/ds/symlink/tps3813k33.pdf

Robert

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