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Specifying a
Trigger
Condition
To capture the data and then place the data of interest in the center of the
display of the timing waveform menu, you need to tell the logic analyzer
when to trigger. Since the first event of interest is when the LRAS is
asserted (negative-going edge of RAS), you need to tell the logic analyzer
to trigger on a negative-going edge of the RAS signal.
1. Display the Timing Trace Specification menu.
a. Touch the field second from the left in the upper left corner.
b. When the pop-up appears, touch the Trace 1 field.
2. Set the trigger so that the logic analyzer triggers on the
negative-going edge of the RAS.
a. Touch the Then find Edge field under the label RAS.
b. When the pop-up appears, touch the field with the arrow pointing
down. This selects a negative-going edge. Touch DONE when
your selection is complete.
Figure 7-5. Timing Trace Specification Menu
HP 16510B Using the Timing Analyzer
Front-Panel Reference 7 - 7