Ao Start Trigger Signal; Using A Digital Source; Outputting The Ao Start Trigger Signal - National Instruments NI 6711 User Manual

AO Start Trigger Signal

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You can use the AO Start Trigger (ao/StartTrigger) signal to initiate a
waveform generation. If you do not use triggers, you begin a generation
with a software command.

Using a Digital Source

To use ao/StartTrigger, specify a source and an edge. The source can be
an external signal connected to any PFI or RTSI <0..6> pin. The source
can also be one of several internal signal on your DAQ device. Refer to
Device Routing in MAX in the NI-DAQmx Help or the LabVIEW Help in
version 8.0 for more information.
Figure 3-4 shows the timing requirements of the ao/StartTrigger digital
source.
Rising-Edge
Polarity
Falling-Edge
Polarity
Figure 3-4. ao/StartTrigger Timing Requirements

Outputting the AO Start Trigger Signal

You can configure the PFI 6/AO START TRIG pin to output the
ao/StartTrigger signal. The output pin reflects the ao/StartTrigger signal
regardless of what signal you specify as its source.
The output is an active high pulse. Figure 3-5 shows the timing behavior of
the PFI 6/AO START TRIG pin when the pin is an output.
t
w
t = 10 ns minimum
w
3-7
Chapter 3 Analog Output
Analog Output Series User Manual