Serial Decode
When you select the Index number from the summary result table, the detailed results for that index drop-in below it.
Example summary result table showing drop-in detailed result table.
Note: Decoding DP-AUX alongside USB-PD requires both the DP-AUX D/DME and USB-PD D/DME option
keys.
Exporting Result Table Data
You can manually export the detailed result table data to a .CSV file:
1. Press the Front Panel Serial Decode button, or choose Analysis > Serial Decode, then open the Decode Setup
tab.
2. Optionally, touch Browse and enter a new File Name and output folder.
3. Touch the Export Table button.
Export files are by default created in the D:\Applications\<protocol> folder, although you can choose any other folder
on the oscilloscope or any external drive connected to a host USB port. The data will overwrite the last export file
saved, unless you enter a new filename.
Note: Only rows and columns displayed are exported. When a summary table is exported, a combined file is
saved in D:\Applications\Serial Decode. Separate files for each decoder are saved in
D:\Applications\<protocol>.
The Save Table feature will automatically create tabular data files with each acquisition trigger. The file names are
automatically incremented so that data is not lost. Choose File > Save Table from the oscilloscope menu bar and
select Decode
x
as the source.
This extracted data appears on a USB-PD detailed result table.
Column
Extracted or Computed Data
Index
(always shown)
Number of the line in the result table
Time
Time elapsed from start of acquisition to start of transmission
SOP
Start of Packet indicator.
Msg Type
Message type (e.g., Source Capabilities, Request, Accept, GoodCRC, PS_RDY).
Data Role
Whether packet is from Downward Facing Port (DFP) or Upward Facing Port (UFP).
Power Role
Whether packet is from Source or Sink device.
Msg ID
Number from a counter maintained by the originator of the message. Initialized to zero at
power-on or Soft Reset, and incremented upon successful receipt of a message, indicated by
receipt of a GoodCRC message.
Obj Count
Value from the Number of Data Objects field in the Message Header, which defines the num-
ber of Power Data Objects (PDOs) that follow the Message Header in a USB-PD transaction.
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