
96
3000 X-Series Oscilloscopes Advanced Training Guide
4
Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs
long decoded record can be difficult. So let’s now perform an automatic
search to find all occurrences of Error Frames and “form” errors
(non- flagged error conditions). We will then automatically navigate to each
of these error conditions.
23
Push the horizontal position/delay knob to re- position the trigger point
back to center- screen.
24
Set the scope’s timebase to
100.0 ms/div
.
25
Press the
[Search]
front panel key.
26
Press the
Search Edge
softkey; then select
Serial 1 (CAN)
.
27
Press the
Search for
softkey; then select
All Errors
using the Entry knob.
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
. These frames are also marked in orange in the first/pointer
column of the lister table. Your scope should have found and marked more
than 10 occurrences of this search operation based on a total acquisition
time of 1 second. Note that the number of “found” events is indicated near
the bottom of the display. To automatically navigate to each CAN error,
press the
and
front panel navigation keys.
Figure 70 Using the scope’s automatic Search & Navigation capability to find all
occurrences of CAN errors over a 1 second time span.