Hello I'm trying two measure the time in seconds between each two successive rising edges on a digital input . Till now I have managed to detect the rising edge ,increment a counter with each rising edge ,and snap the time at which the rising edge happenned all I need now is to subtract the current rising edge time from the previous rising edge time in order to calculate (T) which can be 1/frequency and display it in realtime to the user. but I don't know how to do this 😞 Can somebody please help me !!!

Woah! Sorry Apok, but your code is becoming way too complicated/messy. I don't think that all of those shift registers or boolean conversion/operators are needed at all. If you want to measure the timing between two button presses then this is a different (much less complicated) way. It simply records the timing of the button press into a shift register then compares the two. Spoiler (Highlight to read) Of course this is a very quick and basic solution just to show you that it can be much simpler than you are making it (remember to use the mechanical actions of the buttons to get the behaviour you want). A better way would be to use an event structure looking at value changes of the buttons to determine the timings between clicks. -CC

LabVIEW

How can I measure the time between each two successive rising edges ,using Digital Input ?

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Thanks Guys for your replies 🙂

The completed solution of the problem is in this post

http://forums.ni.com/t5/LabVIEW/How-can-i-measure-the-time-between-two-successive-rising-edges/m-p/2...

Cheers

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LabVIEW

How can I measure the time between each two successive rising edges ,using Digital Input ?

Re: How can I measure the time between each two successive rising edges ,using Digital Input ?