Hello I am programing a pulse sequence which contains some Digital pulses and analog voltages and during the pulse sequence I need to read an analog voltage. All these channels needs to be synchronized I am using Ni-DAQmx. Please seed the VI attached. I have to use LabView 2013 In the attached VI, the length of the pulse sequence is 1227 micro secs. I am using a 1 micro sec clock to sync, so the length of the input arrays for each channel is 1227 elements long. at various instance in this pulse sequence I need to collect data (an analog voltage) and I am using Analog IN for it. after every Pulse sequence the input data for both analog and digital channel changes(not happening in the VI right now) so I need to put everything inside the for loop. In this example I am changing the input data 10,000 time so I am running the FOR loop 10,000 times. I am generating my own clock using a counter Essentially all the channels DO, AO, and AI should start at the same time, run for 1227 us and stop at the same time and this should repeat 10,000 times. The Issue, Here all the channels and firing and the AI is getting data the problem is, non of these are synchronized (because obviously I am not doing it, since I don't know how to do it) I see a bunch of post regarding synchronization but non of them address my issue specifically.

I had a few minutes over lunch to do some fairly minimal cleanup on your posted vi. I don't have LV 2013 installed, so I hope the back-save comes through cleanly. The data you feed to DO and AO looks to be constant arrays of 0 values -- I assume you'll change that part as needed. Otherwise, most of the rest of the changes were small tweaks to task configs and sequencing their starts and stops to be sure they'd all be sync'ed to the master clock you create with your CO task. -Kevin P

Multifunction DAQ

Synchronizing Digital output, Analog output and Analong Input using Ni-DAQmx

Solved!

Thank you very much again for the enlightening suggestion.

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Multifunction DAQ

Synchronizing Digital output, Analog output and Analong Input using Ni-DAQmx

Re: Synchronizing Digital output, Analog output and Analong Input using Ni-DAQmx