User's Manual

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BTTracer Protocol Analyzer User’s ManualCATC Version 1.0
Record.
• DIAC LAP- Device Inquiry Access Code. Used for Device
Inquiry.
• Swap - The "swap" button swaps the addresses between the
Master Addr and Page Target text boxes. This button will allow
addresses to be swapped even if the boxes are grayed out.
Note GIAC - General Inquiry Access Code is hard-coded in the analyzer and does not
require user selection.
Other Parameters
Correlation Value (33-64)
This value tells BTTracer how many bits in the sync word of each received
packet must be matched in order for BTTracer to consider the packet valid
and start recording.
Inquiry Timeout (0-80 secs)
Default value is 20 seconds.
This value specifies how long BTTracer should perform the Inquiry process
for the General (unlimited) and Dedicated (limited) recording modes. After
the specified time has elapsed, BTTracer will illuminate the trigger light on
the front of the analyzer.
Loss of Sync Timeout (1-16 secs)
This value specifies the amount of time that BTTracer will wait for piconet
traffic before determining that synchronization has been lost.
Sync Window
The Sync Window slide bar controls the amount of time that BTTracer
should wait between receiving an Inquiry Response (which will cause the
Sync LED to blink) and detecting Master-Slave piconet traffic (which will
cause the Sync LED to turn solid.)
A "Narrow" setting means that the wait time will be minimal, a "Wide"
setting means it will be "maximal." The default is "Narrow" and this is
suitable for most recordings. However, if significant drift occurs between
BTTracer’s clock and that of the Master, BTTracer may not be able to sync
properly to the piconet. Under these conditions, you should move the slide
bar towards the "Wide" Setting. The slide bar has five discrete settings.