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Chapter 2: Task Guide
Setting Up Triggers and Running Measurements
To Specify Default StoringYou can set up default storing so that only the data samples you're
interested in are saved in logic analyzer acquisition memory.
NOTE: Default storing in both state and timin g modes require time tags to
reconstruct the data. These time tags will be stored eit her in the memory
resources of an unused pod pair, or interleaved in the data.
1. In the Trigger tab's Default Storin g subtab, select the store by default
option button and choose either Anything, Nothing, Custom, or
Tran sit io ns.
Anything means all samples are stored. Nothing means that no samples
are stored. Custom lets you specify which sampl es are stored. Tra nsi tio ns
lets you specify which transitions to store on a per lab el basis.
2. If you chose Custom:
a. Select the Store if or Store if NOT option.
b. Specify events that iden tify the states to be stored or not stored.
c. If you would like to specify the evaluation order of the event list, select
Group events. Then, in the Group Events dialog, either select the Add
parens button to group events or selec t the Remove parens button to
ungroup events. When you're done grouping events, select th e OK
button.
3. If you chose Tr ans iti on s (Timing mode only).
Transitional timing is a subset of store qualified timing. In transitional
timing, the store qualification is set to look for edg es (transitions) on all
active channels. Active channels are those that have been assigned to a
label in the Format tab. Samples are stored for all channels whenever a
transition occurs. No other store qualification events are allowed.
For more information on store qual ification in transitional timing mode,
refer to More on Store Qualification in Transitional Timing. (see page 38)