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
Hop Frequency menu changes and displays two options called
Limited Hop and Fixed Frequency. The "Limited Hop" setting
restricts Merlin to five hop frequencies defined in the test mode
specification of the Bluetooth™ Specification.
• Fixed Frequency - Allows the the transmit and receive frequency
ranges to be specified. Selecting this option highlights the "DUT
Xmit" and "DUT Recv" text boxes. Enter values into the two text
boxes to the set the transmit and receive frequency ranges:
• DUT Xmit Freq, MHz (+2402) – Allows the setting of the
transmit signal for the Device Under Test
• DUT Recv Freq, MHz (+2404) – Allows the setting of the
receive signal for the Device Under Test
Force Re-synchronization
"Force Re-Synchronization" forces Merlin to re-synchronize at the
beginning of each "Page Sync & Record," "Passive Sync & Record," or
"Sync & Record" operation. By default, "Force Re-Synchronization" is
disabled (i.e., unchecked).
Unchecking the "Force Re-Synchronization" checkbox tells Merlin to use
its existing data on Bluetooth™ devices, thereby bypassing the
synchronization process and saving a few seconds from the beginning of the
trace. If you know that Merlin’s data is correct, you can uncheck this
checkbox and cause Merlin to try to use the existing data. If the data is
incomplete or incorrect, however, Merlin will automatically perform a
refresh.
To examine Merlin’s Bluetooth™ data, open "BT Neighborhood" under the
View menu.
Follow Master/Slave Switch
If enabled, this option allows Merlin to follow a role switch between a
Master and Slave. This capability allows Merlin to keep track of changes in
a device’s role when it changes from one role to another.
Merlin is able to follow a role change by listening to the Slave device’s
Bluetooth clock and hop frequency as soon as it becomes a Master.
Match Clock Rate
Match Clock Rate is a useful option if the Master device’s clock is
inaccurate. Match Clock Rate causes Merlin to do a General Inquiry to
determine the Page Target's clock rate prior to synchronizing to the piconet.
If unchecked, Merlin will begin piconet synchronization without first doing
a General Inquiry.