To achieve this synchronized performance, you need to accomplish two goals:
In the screenshot below, the correlated signals are generated by deriving a digital output waveform from the analog output waveform using LabVIEW NXG Comparison Nodes. Sample clock synchronization is achieved by specifying the analog output task's sample clock as the sample clock source for the digital output task.
When the analog output task is started (assuming that the digital output task is already started and waiting for a sample clock), the tasks will run in a synchronized fashion, operating using the same sample clock, until the user stops the application.
Note: A start trigger is not needed in this case since a sample clock is already being used to ensure that each output sample is synchronized between the tasks.
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