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DI Sample Clock Timebase Signal

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    Last Modified: February 26, 2018

    The DI Sample Clock Timebase signal is divided down to provide a source for DI Sample Clock. DI Sample Clock Timebase can be generated from external or internal sources. DI Sample Clock Timebase is not available as an output from the controller.

    Using an Internal Source

    To use DI Sample Clock with an internal source, specify the signal source and the polarity of the signal. Use the following signals as the source:
    • it Sample Clock

    • ot Sample Clock

    • Counter n Internal Output

    • Frequency Output

    • DI Change Detection Output

    Several other internal signals can be routed to DI Sample Clock. Refer to the Device Routing in MAX topic in the NI-DAQmx Help or the LabVIEW Help for more information.

    Using an External Source

    You can route the following signals as DI Sample Clock:
    • Any PFI terminal

    • Analog Comparison Event (an analog trigger)

    You can sample data on the rising or falling edge of DI Sample Clock.

    Routing DI Sample Clock to an Output Terminal

    You can route DI Sample Clock to any output PFI terminal. The PFI circuitry inverts the polarity of DI Sample Clock before driving the PFI terminal.


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