I used this method to measure fuel injection pulses, although the
shortest pulses on that were around 2mS, I ran it from a 16MHz
clock with a divide by 4 on the counter to give me a direct output in
us, which I then sent down the serial port between pulses.

Martin

> Has anybody tried to measure the width of a pulse by changing the interrupt
> polarity edge on the interrupt pin? I want to measure a pulse width by setting
> the interrupt to go on the rising edge of the pulse, and change the edge
> polarity so the next interrupt is fired by the falling edge of the pulse. The
> shortest pulse length will be around 50uS and I envisaged using the counter to
> measure the width.
>
> the project involves trying to read the output of a Motorola MC145026 remote
> control sender which is being clocked at 40kHz, and use this code to do things
> in a manner that the companion decoders cannot do for me.
>
> Has anyone tried something similar before, or see any problems with what I am
> trying to do?
>
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