RIGOL Chapter 7 Protocol Decoding
7-30 DS4000E User’s Guide
The event table displays the detailed decoding information (include the
decoded data as well as the corresponding line number, time, message ID,
header CRC (HCRC), tail CRC (TCRC) and error information) of the
waveform on the screen in time order. At most 10 lines of decoding
information can be displayed on one page (the line number starts from 0).
You can turn the multi-function knob
to select the specified line and
view the corresponding decoding information. The line currently selected is
highlighted with brown shading and the decoded data of that line is
dispalyed at the lower-left side of the event table.
Note:
The display format of the decoded data in the event table is determined
by the bus display format currently selected (refer to “Format”).
When adjusting the horizontal time base, the waveform displayed on
the screen will change and the total number of lines of decoding
information in the event table will change.
The decoded data information displayed in the bus is related to the
horizontal time base. You can view the detailed information by reducing
the horizontal time base.
2) If a USB storage device is currently connected to the instrument, you can
press Export to export the decoded data list to the external USB storage
device in CSV format.
11. Explanation of the decoded FlexRay frame data
TSS: transmission start sequence; expressed by light purple patch.
Frame Type: FlexRay frame type; expressed by purple patch. It can be
NORMAL, SYNC, SUP or NULL.
Frame ID: displayed as hexadecimal number and expressed by blue patch.
PL (Payload Length): displayed as hexadecimal number and expressed by
brown patch.
Header CRC (Header Cyclic Redundancy Check): displayed as hexadecimal
number and expressed by turquoise patch. When CRC is invalid, it is
expressed by red patch.
CYC (Number of Cycles): displayed as hexadecimal number and expressed
by pink patch.
Data: displayed in the format (Hex, Decimal, Binary or ASCII) specified in
“Format” and expressed by a green patch.
Tail CRC (Tail Cyclic Redundancy Check): displayed as hexadecimal number
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