How to generate a single pulse in LabView

[longk]

I am trying to generate a single pulse in Labview. As of now, when I hit the trigger, a train of pulses are generate probably because the number of samples is high. However, I am not able to decrease them below 2 (at which the pulse becomes unstable on the oscilloscope). I want to generate a single sqaure pulse to be formed when triggered instead of a train of pulses. 

Thank you.

[nyc_(is_out_of_here)]

LabVIEW is software. It cannot generate pulses. What hardware are you using?

[belopsky]

You're looking for a square wave so you need to do a pulse on a digital line. Look into the 'Counter' examples, finite output

[natasftw]

How precise of timing do you need for your pulse?  How quick do you need your response to be?  As someone else asked, what hardware are you using?  How are you performing this so far?