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4
Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs
Zoom to Selection softkey. Let's now perform an automatic search to find
every occurrence of a "Missing Acknowledge". We will then automatically
navigate to each of these occurrences.
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Figure 36 Automatic Search & Navigation.
The white triangles near the top of the waveform area mark the time
location of each "found" occurrence of our search operation as shown in
Figure
column of the lister table. Your scope should have found and marked
approximately 25 occurrences of this search operation based on a total
acquisition time of 200 ms. Note that the number of "found" events is
indicated near the bottom of the display. To automatically navigate to each
frame with a "Missing Acknowledge", press the
navigation keys near the timebase controls.
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Push the horizontal position/delay knob to re- position the trigger point
back to center- screen.
Set the scope's timebase to 20.00 ms/div.
Press the [Search] front panel key.
Press the Search Edge softkey; then select Serial 1 (I
knob.
Press the Search for softkey; then select Missing Acknowledge as our
search criteria.
36. These frames are also marked in orange in the first/pointer
2
and
2000 X-Series Oscilloscopes Advanced Training Guide
C) using the Entry
front panel
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