How to synchronise AI with Counter measurement?

[Steffan]

Is it possible to syncronise AI and CTR readings? I'm using an M-series device and in LabVIEW I created an AI Task with several inputs and a CTR Channel which used as angular position measurement. It is easy to do a countinous buffered measurement of the analog inputs. But with the same Sample rate I would like to read the counter. DAQmx forces me to use an external clock source for the counter acquisition. Is there a (simple) solution?

[JB · Accepted solution]

This can easily be done by using ai/SampleClock (internal signal of the DAQ board) as the sample clock source of the counter task. See the tutorial called M Series Synchronization with LabVIEW and NI-DAQmx (Multi-Function Synchronization) and make a search for ai/SampleClock on NI's discussion forums for more details.