Programming instructions

Chapter 28 Dividing Frequencies
© National Instruments Corporation 28-3 LabVIEW Data Acquisition Basics Manual
Instead of triggering frequency division for signal dividers and down
counters by software, as previously described, you can trigger using the
GATE signal. You can trigger while the GATE signal is high, low, or on the
rising or falling edge. For more information, refer to the Down Counter or
Divide Config VI description in Chapter 27,
Intermediate Counter VIs
, of
the
LabVIEW Function and VI Reference Manual
, or the LabVIEW
Online
Reference
, available by selecting
Help»Online Reference…
.
8253/54
To divide a frequency with the 8253/54 counter chip, use the example Cont
Pulse Train (8253) VI located in
labview\examples\daq\8253.llb
.
This example is explained in Chapter 24 in the
Generating a Pulse Train
section. For a complete description of this example, refer to the information
found in
Windows»VI Info…
.