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Sync ni tclk and daq digital input

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so I am currently using 6672 to generate a square wave that triggers a frequency generator to produce a single chirp. I am trying to capture the chirp with a series of 5122. All the 5122 are synchronized using ni tclk, and they capture in continuous acquisition mode starting with the tclk initiate vi.

I am trying to capture the square wave using a 6572 using DAQ digital n samples read. The timing between the square wave and the chirp being recorded its crucial. If I use both a 5122 to record the square wave and a 6572 I get a two square waves that are nearly identical but are offset by a random amount of points. Is there any way to synchronize the start acquisition for both of these cards so that the captured data is the same? Or is there a way to record what this offset is with some kind of time step that records the exact time the start acquisition competes for these devices?

TlDR; can a 6572 daq input be tclkd to 4 5122s?

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