Digital Input/Output Configuration For Ni 9401; Getting Started With Do Applications In Software; Do Pause Trigger With The Onboard Clock Source; Do Pause Trigger With Other Signal Source - National Instruments NI cRIO-905x Series User Manual

Figure 44. DO Pause Trigger with the Onboard Clock Source
If you are using any signal other than the onboard clock as the source of the 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 the figure below.
Figure 45. DO Pause Trigger with Other Signal Source
Using a Digital Source
To use DO Pause Trigger, specify a source and a polarity. The source can be a PFI signal or
one of several other internal signals on the cRIO controller.
You also can specify whether the samples are paused when DO Pause Trigger is at a logic high
or low level. Refer to the "Device Routing in MAX" topic in the NI-DAQmx Help or the
LabVIEW Help for more information.

Getting Started with DO Applications in Software

You can use the cRIO controller in the following digital output applications:
• Single-point (on-demand) generation
• Hardware-Timed Single Point generation
• Finite generation
• Continuous generation
For more information about programming digital output applications and triggers in software,
refer to the NI-DAQmx Help or to the LabVIEW Help.

Digital Input/Output Configuration for NI 9401

When you change the configuration of lines on a NI 9401 digital module between input and
output, NI-DAQmx temporarily reserves all of the lines on the module for communication to
send the module a line configuration command. For this reason, you must reserve the task in
advance through the DAQmx Control Task before any task has started. If another task or route
Pause Trigger
Sample Clock
Pause Trigger
Sample Clock
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