Analog Output Timing Signals; Ao Start Trigger Signal; Using A Digital Source - National Instruments NI 6221 User Manual

Analog Output Timing Signals

PFI, RTSI
PXI_STAR
Analog Comparison
Event
20 MHz Timebase
100 kHz Timebase
PXI_CLK10

AO Start Trigger Signal

© National Instruments Corporation
Figure 5-3 summarizes all of the timing options provided by the analog
output timing engine.
ao/SampleClock
Timebase
Figure 5-3. Analog Output Timing Options
M Series devices feature the following AO (waveform generation) timing
signals.
• AO Start Trigger Signal
• AO Pause Trigger Signal
• AO Sample Clock Signal
• AO Sample Clock Timebase Signal
Use the AO Start Trigger (ao/StartTrigger) signal to initiate a waveform
generation. If you do not use triggers, you can 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
one of the following signals:
• A pulse initiated by host software
• PFI <0..15>
• RTSI <0..7>
PFI, RTSI
PXI_STAR
Analog Comparison Event
Ctr n Internal Output
Programmable
Clock
Divider
5-7
Chapter 5 Analog Output
ao/SampleClock
M Series User Manual