How to trigger an analog waveform from a generated waveform

Hello all, 
I have an analog waveform via DAQmx and I have created waveform shape and amplitude limits by using generated square waveforms. I am having trouble aligning these waveforms so that I can test the shape and assure that it is within my limits. 
Thanks

There really isn't any method for aligning an acquired signal and a generated signal.  I looked into "Align Waveforms (Continuous).vi", but it doesn't appear to work with Square Waves.  
 http://zone.ni.com/devzone/cda/epd/p/id/5800
One method you could do is manually align the squre waves by adjusting the phase of the "Square Wave.vi".  From what I understand, that won't work for your testing since it will require interaction.  What parameters of the wave are you trying to measure and test?  Just the amplitudes?  Frequency too?
I hope this helps.
-Nathan
Product Support Engineer
National Instruments

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