Data Translation DT340, Руководство по началу работы

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Chapter 6
52
Performing a Pulse Output Operation
To verify that the board can perform a pulse output operation,
perform the following steps:
1. Connect a scope to counter/timer 0 on the DT340 board. Refer to
page 40 for an example of how to connect a scope (a pulse
output) to counter/timer 0.
Note: The Quick Data Acq application works only with
counter/timer 0.
2. Click the Control menu.
3. Click Pulse Generator.
4. Select the appropriate DT340 board from the Board list box.
5.
Select either Continuous to output a continuous pulse stream or
One Shot
to output one pulse.
6. Select either Low-to-high to output a rising-edge pulse (the high
portion of the total pulse output period is the active portion of
the signal) or High-to-low to output a falling-edge pulse (the low
portion of the total pulse output period is the active portion of
the signal).
7. Enter a percentage or use the slider to select a percentage for the
pulse width. The pulse width determines the duty cycle of the
pulse.
8. Click Start to generate the pulse(s).
The results are displayed both in text and graphical form.
9.
Click Stop to stop a continuous pulse output operation. One-shot
pulse output operations stop automatically.