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Protocol Decoding
TIP
•
When you adjust the horizontal time base, the waveform displayed on the screen will also
change, and the total number of lines containing the decoding information in the event
table will also be changed.
•
The displayed decoded data information in the bus is related to the value of the
horizontal time base. Reducing the horizontal time base can help you view the detailed
information.
Set the Event Table Format
In the Decode menu, click or tap the drop-down button of Format to select the
display format of "Data" in the event table. The available options include "Hex",
"Dec", "Bin", or "ASCII".
Interpret the Decoded CAN Data
•
Frame ID: expressed in Hex, identified as "ID:".
•
DLC (Data Length Code): expressed in Hex, identified as "DLC:".
•
Data: Its display format is the same as that of the bus data (Hex, Dec, Bin, or
ASCII), identified as "Data:".
•
CRC (Cyclic Redundancy Check): expressed in Hex, identified as "CRC:".
•
ACK (Acknowledgement): identified as "ACK". When errors (ACK is detected to
be 1) occur, displayed as a red patch.
HDO4000 User Guide
214
Figure 15.18 CAN Decoding Event Table
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