Hi guys,
    I'm considering a situation where I would clock timer1 in external mode,
driven by a copy of the Xtal output pin, in order to gain a bit of
resolution when capturing the width of a pulse using the capture register.
The Xtal frequency is 4Mhz, giving a pic clock of 1us which just a little
too slow. I am hoping to have a resolution of 250nS by using the above
method.

Has anyone tried this? Are there any gotchas that anyone is aware of?

Your thoughts please
Slan
John
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