Synchronize two counters two different cards DAQMX

[CV]

I've made a simple program to synchronize the generation of two pulse trains created on different cards (6110 and 6601). When I acquire the pulses they are in fact synchronized but one of the two pulse trains starts always before the other. Is it possible to make them start together? You find the vi attached.
Thanks for any suggestion.
-Claudio

[gus]

You should use a start trigger on your 6601 task. As the start trigger you should use the same signal that is being used as the start for the 6110 task.

Hope this helps.
gus....