Slow counting time (PCI-6601)-Single period measurement

[Confocal]

Dear friends

I wish to count TTL pulses from my device(Avalanche Photo Doide) by using PCI-6601 for a certain time. Thus, I tried to use "Measure Period.vi" with "for loop" configuration.

And the gate frequency from another counter is 100 Hz ( 10 ms time binning). Unfortunately, the acquition time is so slow considering binning time (10 ms).

 We tried to modify this vi and found that the acquisition speed cound be fast when we remove "while loop" with "0" counting. As I know, the "while loop" function is to check  whether arming acutally occurs, which is quite questioning why this kind of function exist even though the control code already do it. 

 Can you guys help me ? ^_^

[Ryan_V[DE]]

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