15. To stop acquisitions if a match is found,
select the Mode tab and check Stop
Acquisition if event found.
Quick tips
■
Search is performed only on acquired data. Set up the instrument to acquire the data you are searching for.
■
Set the sample rate so the search event is discernible. You can search for a glitch that is wider than a couple of sample
intervals.
■
You can copy trigger settings to search for other locations in your acquired waveform that meet the trigger conditions. You
can copy search settings to your trigger.
■
Edge search marks are created without zoom factors. Other search types create marks with an appropriate zoom factor.
■
Pressing Bring Zoom to Mark Zoom 2 or Zoom 3 displays the corresponding zoom view with the same zoom parameters as
Zoom 1.
■
Custom (User) marks are saved with the waveform when the waveform is saved and when the setup is saved.
■
Automatic search marks are not saved with the waveform when the waveform is saved. However, the search criteria are
saved in the saved setup, so you can easily recapture the marks by reusing the search function.
Search includes the following search capabilities:
Search Description
Edge Searches for edges (rising or falling) with a user-specified threshold level.
Glitch Searches for pulses narrower (or wider) than the specified width, or ignores glitches narrower
(or wider) than the specified width.
Width Searches for positive or negative pulse widths that are >, <, =, or ≠ a user-specified pulse width.
Setup & Hold Search for violations of user-specified setup and hold times.
Runt Searches for positive or negative pulses that cross one amplitude threshold but fail to cross a
second threshold before crossing the first again. Search for all runt pulses or only those with a
duration >, <, =, or ≠ a user-specified time.
Window Searches for a signal that is entering or leaving the threshold window. Qualify the search in
terms of time by using the When Wider option, or by the logical state of other channels using
the When Logic option.
Pattern Search for a logic pattern (AND, OR, NAND, or NOR) across multiple waveforms with each
input set to either High, Low, or Don't Care. Search for when the event goes true, goes false, or
stays valid for >, <, =, or ≠ a user-specified time. Additionally, you must define one of the inputs
as a clock for synchronous (state) searches.
Transition Search for rising and/or falling edges that are >, <, =, or ≠ a user-specified time.
Timeout Searches for no pulse in a specified time.
State Searches for when all of the logic inputs to the selected logic function cause the function to be
True or False when the clock input changes state.
Display a waveform
DPO70000SX Series User 125
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