Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs
4
3000 X-Series Oscilloscopes Advanced Training Guide
77
Let’s now use the scope’s Segmented Memory mode of acquisition to
selectively capture 500 consecutive occurrences of our trigger condition
(Read from address 29
HEX
). But to complete the rest of this lab your scope
must be licensed with the Segmented Memory option.
31
Push the horizontal position/delay knob to re- position the trigger point
back to center- screen.
32
Set the scope’s timebase to
100.0 µs/div
.
33
Press the
[Run/Stop]
front panel key to begin repetitive acquisitions
again.
34
Press the
[Acquire]
front panel key.
35
Press the
Segmented
softkey; then turn the Entry knob to select
500
as
the number of segments to capture.
36
Press the
Segmented
softkey to begin a Segmented Memory acquisition.
37
Press the
Current Segment
softkey; then turn the Entry knob to review all
500 captured segments.
38
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
Figure 54 Using the scope’s Segmented Memory acquisition to selectively capture more
I
2
C traffic.