Lpc2000

Hello Jase,

I would suggest to use a capture pin on timer 0 or timer 1 to capture 
the falling edge. This is more accurate because it eliminates the 
interrupt lattency.

Richard.


jase_ko wrote:

> --- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@a...>
> wrote:
> > At 04:36 AM 4/28/05 +0000, jase_ko wrote:
> > >I'm new at this. Can someone tell me the best way to measure the
> time
> > >between external interrupt calls?
> > >just point me in the right direction as to what to use..
> > >thanks!
> >
> > It depends on what you are trying to do, your question is a little
> > general.  Usually I just toggle an external pin and measure the
> result on a
> > 'scope.
> >
> > Robert
> >
> >
> > " 'Freedom' has no meaning of itself.  There are always
> restrictions,   be
> > they legal, genetic, or physical.  If you don't believe me, try to
> chew a
> > radio signal. "  -- Kelvin Throop, III
> > http://www.aeolusdevelopment.com/
>
> well i have calls to an external interrupt method every time a pin
> is grounded.. This happens extremely quickly and i need an accurate
> way of measuring the time between the successive calls of this same
> method. I'm using an LPC2129
>
> Thanks
>
>
>
>
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