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Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs
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Figure 52 While triggering on CAN data frame = 07F
Your scope should now be triggering on CAN data frame = 07F
shown in
you should also see some decoded red "flashing" near the end of this
packet/frame of data. This is an indication that the scope is capturing and
quickly decoding infrequent Error Frames. Let's now capture a very long
stream of CAN traffic (1 second of acquisition time) and then manually
search through the captured and decoded record.
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As you scroll through the data, note that waveforms "track". This means
that the frame that the arrow points to in the lister table corresponds to
the waveforms that are positioned at center- screen. If you want to zoom
in on a particular CAN frame of data, either push the Entry knob, or
press the Zoom to Selection softkey. Looking for infrequent errors in this
2000 X-Series Oscilloscopes Advanced Training Guide
Press Trigger: SOF; then select Data Frame ID (~RTR) using the Entry knob.
Press the Bits softkey.
Press the Hex softkey; then select F using the Entry knob.
decoding reveals infrequent error conditions.
Figure
52. With this scope's very fast hardware- based decoding,
Press the [Serial] front panel key.
Press the Lister softkey; then turn the Entry knob to select Serial 1 (CAN).
Set the scope's timebase to 100.00 ms/div.
Press [Run/Stop] to stop repetitive acquisitions.
Press the Scroll Lister softkey; then turn the Entry knob to manually
scroll through the lister table.
, the scope's hardware-based
HEX
HEX
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as
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