User Manual Part 2
Table Of Contents
- 7. Recording Options
- 8. Display Options
- 9. Reading a CATC Trace
- 10. Decoding Higher Protocols
- 10.1 Introduction
- 10.2 LMP and L2CAP Messages
- 10.3 Decoding and Viewing Higher Protocol Data
- 10.4 Tooltips
- 10.5 Viewing Packets in LMP and L2CAP Messages
- 10.6 Types of LMP and L2CAP Messages
- 10.7 Viewing L2CAP Channel Connections
- 10.8 Viewing Protocol Messages and Transactions
- 10.9 Changing Protocol Assignments
- 11. Other Features
- 12. How to Contact CATC
- 13. Warranty and License
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Merlin Protocol Analyzer User’s ManualCATC Version 1.6
LMP and L2CAP Signalling messages have payloads of commands for
establishing LMP and L2CAP channels. L2CAP Data-Transfer messages
have a payload that may include RFCOMM, SDP, or TCS data. In order to
view higher protocol data, you will need to decode the messages (shown in
the next section). The decoded data will appear as new lines in the trace
called "Protocol Messages."
10.7 Viewing L2CAP Channel Connections
Once L2CAP messages have been decoded and displayed, you can check or
change their L2CAP channel connections by opening the L2CAP Decoding
Connections dialog box.
To view or change an L2CAP channel connection,
Step 1 Select from the menu bar
View>Decoding Connections
The following dialog box will open.
Step 2 Click on a channel assignment and then look at the Connect
and Disconnect buttons on the far right of the dialog box.
If the Connect and Disconnect buttons are grayed-out, it means that
Merlin made the channel assignments using data in the trace. You can
verify that Merlin performed the assignments by looking at the text in the
"Slave Channel" box in the lower left corner of the dialog box. If you
see "Connection Recorded" it means that Merlin performed the channel
assignments.
If Merlin was not able to make these channel assignments, then the
Connect and Disconnect buttons on the right side of the dialog box will
be active. You can then assign and edit channel connections.
Step 3 Open the drop-down menu labeled AM_Addr (Active