Using A Digital Source - National Instruments NI 6221 User Manual

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Pause Trigger
Sample Clock
Figure 5-4. ao/PauseTrigger with the Onboard Clock Source
If you are using any signal other than the onboard clock as the source of
your sample clock, the generation resumes as soon as the pause trigger is
deasserted and another edge of the sample clock is received, as shown in
Figure 5-5.
Pause Trigger
Sample Clock
Figure 5-5. ao/PauseTrigger with Other Signal Source

Using a Digital Source

To use ao/PauseTrigger, specify a source and a polarity. The source can be
one of the following signals:
• PFI <0..15>
• RTSI <0..7>
• PXI_STAR
The source also can be one of several other internal signals on your DAQ
device. Refer to Device Routing in MAX in the NI-DAQmx Help or the
LabVIEW Help in version 8.0 or later for more information.
You also can specify whether the samples are paused when ao/PauseTrigger
is at a logic high or low level.
5-9
Chapter 5 Analog Output
M Series User Manual