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The Trigger Menu
Creating a User Level
The steps in this kind of process are difficult to predict, but the general
approach is to think of each sequence level as an opportunity to direct the
analyzer's selection process in the desired direction.
During sequence execution, the analyzer searches for a match between the
resource term value and the measurement data. When a match is seen, that
part of the sequence statement becomes true and the sequencing continues
to the next sequence level. Eventually a path of "true" resource terms leads
to your trigger command.
The typical User Level shown below is where you create or modify the
sequence instruction by selecting the assignment fields and inserting
resource term choices into each assignment field.
Assignment field
Primary "Find" branch
Secondary "else on"
branch
Sequence Level Menu
The actual resource terms available for any particular assignment field varies
on such things as the acquisition mode, if the timer or occurrence counter is
used, and how many resource terms have already been used in other levels.
See Also
"The Trigger Sequencer" section in chapter 4, "Concepts," in the Agilent
Technologies 16500/16501A Logic Analysis System User's Guide. The
User's Guide is distinct from the User's Reference and contains
supplementary information.
4–18
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