Using A Digital Source - National Instruments PXI-6238 User Manual

onboard clock, the generation resumes as soon as the pause trigger is
deasserted, as shown in Figure 5-4.
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.

Using a Digital Source

To use ao/PauseTrigger, specify a source and a polarity. The source can be
one of the following signals:
•
•
•
Note Refer to the NI 6238/6239 Specifications for the minimum allowable pulse width
and the propagation delay of PFI <0..5>.
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 8.x Help for more information.
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Pause Trigger
Sample Clock
Figure 5-4. ao/PauseTrigger with the Onboard Clock Source
Pause Trigger
Sample Clock
Figure 5-5. ao/PauseTrigger with Other Signal Source
Input PFI <0..5>
RTSI <0..7>
PXI_STAR
5-7
Chapter 5 Analog Output
NI 6238/6239 User Manual