Protocol analysis
R&S
®
RTO6
629
User Manual 1801.6687.02 ─ 05
2. Press "Setup trigger".
3. Tap the "Source" button and select the "Serial bus" trigger source.
4. Select the serial bus that is set to FlexRay.
5. Select the "Trigger type".
6. For more complex trigger types, enter the address and/or data conditions: address,
acknowledge bits, R/W bit, and data pattern.
For details, see
Chapter 13.9.2.1, "FlexRay trigger"
13.9.3
FlexRay decode results
When the configuration of the serial bus is complete, the signal can be decoded:
1.
In the "Protocol" dialog > "Setup" tab, enable "Decode".
2.
In the "Protocol" dialog > "Display" tab, select additional result display settings:
"Show decode table" and "Show binary signals".
For a description of the display settings, see also
The instrument captures and decodes the signal according to the standard definition
and the configuration settings.
The color-coding of the various protocol sections and errors simplifies the interpretation
of the visual display. The decode information condenses or expands, depending on the
horizontal scale. Various data formats are available to show the result values.
Decode Results Table
The results are shown in two tables:
●
"Decode results": contains information about all decoded frames
●
"Details frame": contains more detailed information about the selected frame in the
"Decode results" table.
Table 13-13: Content of the Decode results table
Column
Description
State
Overall state of the frame.
"Insuffcient waveform length" indicates that the frame is not completely contained
in the acquisition. Change the horizontal scale, or move the reference point to the
left to get a longer acquisition.
Frame start
Time of frame start
FlexRay (option R&S
RTO6-K520)
