To Trigger On A Loop That Occasionally Runs Too Long - HP 16501A User Manual

To trigger on a loop that occasionally runs too long

This example assumes the loop normally executes in 14 µs.
Select the state analyzer Trigger menu.
1
Define terms LP_START, LP_END, and Timer1 to represent the start
2
and end addresses of the loop, and the normal duration of the loop.
You can make the sequence specification closer to the problem domain by
renaming Timer1 to LOOP_DUR.
Under State Sequence Levels, enter the following sequence
3
specification:
•
While storing "anystate" Find "LP_START" 1 time
•
While storing "anystate" TRIGGER on "LOOP_DUR 14.00 µs" 1 time Else
on "LP_END" go to level 1
You will need to start the LOOP_DUR timer (Timer1) upon entering
this state. You do this using the Timer Control field in the menu for
sequence level 2.
•
Store "anystate"
Triggering on a Loop Overrun
To trigger on a loop that occasionally runs too long
Triggering
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