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Testing Frequency Measurement
To verify that the module can perform a frequency measurement operation, do the following:
1. Wire an external clock source to counter/timer 0 on the DT9812, DT9813, or DT9814 Series
module. Refer to
a frequency measurement operation.
Note: The Quick DataAcq application works only with counter/timer 0.
2. In the Quick DataAcq application, choose Frequency Counter from the Acquisition
menu.
3. Select the appropriate DT9812, DT9813, or DT9814 Series module from the Board list box.
4. In the Count Duration text box, enter the number of seconds during which events will be
counted.
5. Click Start to start the frequency measurement operation.
The operation automatically stops after the number of seconds you specified has elapsed, and the
application displays the frequency on the screen.
If you want to stop the frequency measurement operation when it is in progress, click Stop.
page 40
for an example of how to connect signals to a counter/timer for
Verifying the Operation of a Module
51
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