Tektronix DAS 9221 Option 04, Руководство пользователя

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Reference
DAS System User Manual
3–65
To repeatedly acquire and compare data acquired by an acquisition module to the
data in a reference memory until the data is equal or not equal, follow these steps:
1. Form a cluster containing the acquisition module in the Cluster Definition
overlay of the System Configuration menu. Or, form a cluster containing an
acquisition module and a pattern generator if you are going to use the pattern
generator to stimulate the system under test.
2. Set up the menu of the acquisition module to capture data to which
subsequent data will be compared. The initial acquisition will be saved as a
reference memory. The reference memory is used when the system is
operating in the Autorun mode to compare newly acquired data against.
3. Set up the Clock menu (External is usually used) and the Trigger menu to
ensure that data is acquired consistently on each cycle.
4. Acquire data for the reference memory. Save the data as a reference memory
in the Save/Restore menu.
5. Select Autorun in the Cluster Setup menu.
6. Select the appropriate acquisition module and reference memory (saved in
step 4) in the Autorun Definition overlay. Make other selections appropriate
for your application and exit the overlay. Refer to the Autorun Definition
Overlay on page 3–16 for a list of selections.
NOTE . The System Monitor menu shows the status and Autorun count of all
modules and clusters. The status line in any menu shows how often the selected
Autorun cluster has started.
7. Start the cluster. When the Autorun stop conditions are met, data is displayed
for analysis.
You may want to use the Memory Differences field in the format definition
overlay of the various display menus to help you analyze acquired data.
Another helpful way to view data is to use the split-screen display with
reference memory data displayed in one half of the screen and acquired data
in the other half.
If you have a 92S16 Pattern Generator Module, you can change the output pattern
when an event occurs on the acquisition module, by following these steps:
1. Form a cluster containing a 92S16 pattern generator and the acquisition
module in the Cluster Definition overlay of the System Configuration menu.
Only a 92S16 pattern generator can change its pattern output as described in
this procedure.
Autorun Comparisons
Between a Refmem and
Acquired Data
Change the Pattern of the
92S16 Pattern Generator