User's Manual

Digianswer Bluetooth Protocol Analyser Installation & Operation Manual

Starting log session

Click this icon to open the Start new log session dialog box:

We will now take a look at the three main items of this dialog

box: Logging Mode, Hopping Mode, and Data Whitening.

Logging Mode:

Piconet Member Mode is to be used in connection with the

Bluetooth Software Suite. When a log session is started, the

Bluetooth Protocol Analyser logs all baseband packets sent

from and received by your computer.

In Independent Mode, the Bluetooth Protocol Analyser works

as a stand-alone unit. Three kinds of synchronization modes

can be selected:

• Sync to piconet using master inquiry: In this mode

the synchronization is obtained by performing an

inquiry and using the clock information returned by

the master to set the clock of the Protocol Analyser.

(The master is chosen in a dialog box opened by

clicking Select.) As in some Bluetooth devices the

clock drifts away when the device is not in connect

mode, this synchronization mode can be

troublesome if it is desirable to monitor negotiations

during the connect phase. This is due to the fact that

there are often several seconds’ delay from the time

when the Protocol Analyser obtains the master clock

information until the master actually connects to the

slave. Likewise, if the inquiry scan mode on the

Bluetooth device is not implemented or disabled

during the connection, this mode cannot be used for

synchronization.