Technical data

Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs 4
4000 X-Series Oscilloscopes Advanced Training Guide 131
32 Tap the Segmented softkey; double-tap on # of Segs and set the value to
500.
33 Tap the Segmented softkey to begin a Segmented Memory acquisition.
34 Tap the Current Segment softkey; then turn the Entry knob to review all
500 captured segments.
35 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 approximately 25 ms of total acquisition time as shown in
Figure 88. Note that we can also view the decoded FlexRay data in the
"lister" format, and we can also perform Search & Navigation on the
segments. This particular example is limited since there are only four
unique frames in the entire signal to analyze, but the exercise should
provide insight on how segmented memory can be advantageous to
debugging FlexRay signals.
Figure 88 Using the scope’s Segmented Memory acquisition to selectively capture more
FlexRay traffic.