Hi, Hell_pk

<< I want to know how to calculate exact time between two pulses. >>

The question 1 ) is : How exact must be your "exact time" ??? : +/- 1 ms ? +/- 1µS ... better accuracy ???

The Question 2) is : Which is the period ( approximate ... ) of your signal.

Could you also tell us what is your "signal" ???


Then we will be able to show you ideas ...

Alain