Do Pause Trigger Signal - National Instruments DAQ X Series User Manual

DO Pause Trigger Signal

Use the DO Pause Trigger (do/PauseTrigger) signal to mask off samples in
a DAQ sequence. That is, when DO Pause Trigger is active, no samples
occur.
DO Pause Trigger does not stop a sample that is in progress. The pause does
not take effect until the beginning of the next sample.
When you generate digital output signals, the generation pauses as soon as
the pause trigger is asserted. If the source of your sample clock is the
onboard clock, the generation resumes as soon as the pause trigger is
deasserted, as shown in Figure 6-9.
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 6-10.
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Pause Trigger
Sample Clock
Figure 6-9. DO Pause Trigger with the Onboard Clock Source
Pause Trigger
Sample Clock
Figure 6-10. DO Pause Trigger with Other Signal Source
6-21
Chapter 6 Digital I/O
X Series User Manual