Configuration For Buffered Digital Output Generation - Advantech PCI-1716 User Manual

much higher transfer rates. Buffered generation is also called hardware-timed gener-
ation.
The advantages of buffered generation over static update include:
The generation (update) rate can be much higher.

The time of sample is deterministic.

Hardware triggers can be used.

3.4.2

Configuration for Buffered Digital Output Generation

According to software configurations, buffered digital output generation can be classi-
fied into two types:
One-buffered digital output generation

Streaming digital output generation

3.4.2.1 One-Buffered Digital Output Generation
For one-buffered generation, only a specified number of samples is generated. The
generation starts when a start trigger is received and automatically stops when the
specified number of samples is generated. An example of 5-sample generation is
shown in Figure 3.29.
The start trigger can be a software command or a hardware signal. If a hardware sig-
nal is used as the start trigger, the start of generation can be delayed for a specified
number of sample clock cycles after a start trigger is received. Figure 3.30 shows an
example of a 2-sample delay post-trigger generation. Refer to the device specifica-
tions for possible signal sources.
PCI-1716_Series User Manual
Figure 3.29 One-buffered generation.
Figure 3.30 One-buffered generation with delay.
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