
104
3000 X-Series Oscilloscopes Advanced Training Guide
4
Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs
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 15 seconds of total acquisition time as shown in
. Note that we can also view the segmented decoded LIN serial
data in the “lister” format, and we can also perform Search & Navigation
operations on the captured segments.
35
Press the
[Serial]
front panel key; then press the
Lister
softkey.
Because we performed the Segmented Memory acquisition based on
triggering on LIN frame ID = 21
HEX
(or perhaps you changed the trigger
condition to trigger on ID = 12
HEX
), our Lister display now shows a list of
consecutive occurrences of just this particular frame ID as shown in
. To find out how often the parity bit or checksum errors occur
during this particular frame, you could manually scroll through the list, or
you could use the scope’s Search & Navigation capability to locate all
occurrences of errors.
Figure 78 Lister display shows 500 consecutive occurrences of one particular LIN frame.