Technical data
Advanced Triggering, Search & Navigation, and Segmented Acquisition Labs 3
3000 X-Series Oscilloscopes Advanced Training Guide 63
Your scope should now be triggering on just setup time violation
conditions similar to Figure 42. With this unique trigger condition,
perhaps we can now correlate these signals to other signals and/or activity
in our system that may be producing this timing problem.
Let’s now use the scope’s Segmented Memory mode of acquisition to
capture 500 consecutive occurrences of a setup time violation. But to
complete the rest of this lab your scope must be licensed with the
Segmented Memory option.
10 Press the [Acquire] front panel key.
11 Press the Segmented softkey; then turn the Entry knob to select 500 as
the number of segments to capture.
12 Press the Segmented softkey to begin a Segmented Memory acquisition.
13 Press the Current Segment softkey; then turn the Entry knob to review all
500 captured segments.
14 Set the Current Segment to 500 and note the time-tag of the last captured
segment.
Segmented Memory optimizes oscilloscope acquisition memory by only
capturing important segments of a waveform based on the trigger
condition and timebase setting. In this example, we have selectively
captured 500 consecutive occurrences of a setup time violation for a total
acquisition time of approximately 20 ms as shown in Figure 43.
Figure 43 Using the scope’s Segmented Memory acquisition to selectively capture 500
consecutive occurrences of a setup time violationrunt pulses.