Time difference in ms

TE44

Hello all -
············I wast to display the difference in time in (milliseconds)·between a pin going high and low
have you any suggestions ?

Thanks
·

Mike Green

How about:

PRI timeInMs(pin)
   waitpne(0,|<pin,0)       ' Wait for pin to be high
   startTime := cnt           ' Save starting time
   waitpeq(0,|<pin,0)       ' Wait for pin to be low
   return (cnt - startTime) / (clkfreq / 1000)

This assumes that the pin is already set as an input and is low when the routine is executed.
How you display the value this returns will depend on what kind of display you want to use.

TE44

gees ! Spot on (again)... Thanks again Mike..