How can I sync a DIO-0 out pulse with 6602 counter start triggers?

[Iowa Tinkerer]

I am trying to run all 8 counters on a PCI6602 in edge seperation measure mode, and need to send a start pulse out on DIO-0 to an external device, and use that signal also as the start pulse for all 8 counters. I cannot feed the signal back into the AUX lines on the counters. Can this be routed internally? If so, how? I am using NI-DAQ 6.9.2.

[Spencer S.]

Iowa Tinkerer,

Because the digital lines on the PCI-6602 are PFI lines, you should be able to route DIO_0 (PFI_0) to the Start Trigger for your counters. First, you will use the GPCTR_Change_Parameter() function to enable the Start Trigger for each of your counters. Then, you will use the Select_Signal() function to route PFI_0 to the Start Trigger. This should do the trick.

Good luck with your application.

Spencer S.

[Iowa Tinkerer]

Thanks for the advice. I'll give it a try. I wasn't sure if the start trigger function would work with an edge-seperation measurement.