Starting point for the signal clk sample

I am currently trying to synchronize my PXI-7344 Controller with my hardware DAQ-PXI-6221. The devices are connected through 1050 PXI/SCXI chassis.

I wrote a program on board pending a signal RTSI and then making a capture high speed. The data is buffered in memory and then transferred to the PC in chunks.

To synchronize this data with my DAQ data, I want to export the sample clock in the RTSI bus. My question is: the sample clock start sending signals RTSI after that I prepared and booked the task (the sampling frequency is known) or these signals do not appear before you actually begin the task?

In the latter case, it would be much easier to merge the data because the two devices were producing the same amount of samples.

Concerning

André

Hello Andrew,.

Clock signals are not exported through the RTSI bus, until the task starts unless the trigger is configured. In this case clock signals will not be sent until the start trigger is received.

Tags: NI Hardware

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