Tektronix BPA105, User Manual

Page: 27 / 96

Acquiring Piconet Packet Data
BPA105 Bluetooth Protocol Analyzer User Manual -- COMPANY CONFIDENTIAL
1/2001
1- 15
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If a Bluetooth device has a different CID for SDP and RFCOMM, you need
to find the CID values and change them in the Customize Pattern dialog box
in order to trigger on that pattern. For example, if the Ericsson
t
SDP CID is
0x0FFF then you have to change the value in Customize Pattern Data field.
You do not need to change the mask value.
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For Digianswer devices:
DATA: 00 00 41 00 01 73
MASK: 00 00 FF FF 01 FF
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For other vendors if CID is 0x0FFF
DATA: 00 00 FF 0F 01 73
MASK: 00 00 FF FF 01 FF
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For HLT, the application can find the CID value of the other device. This
occurs when both devices exchange the CID value before establishing a
L2CAP connection between the two devices. It is important for the HLT to
have a high pretrigger buffer value set so that the triggers are marked when
the log file is loaded. This is the reason HLT sometimes fails to indicate or
mark, although it actually triggers at the specified pattern.
Select
Acquisition
>
Low Level Trigger
or click the shortcut button to
open the Low Level Trigger Setup dialog box. See Figure 1--6 on page 1--16. Use
this dialog box to set up low level triggers.
NOTE
. Due to hardware limitations, you are allowed only 10 hardware patterns
(slots 0 through 9) for low level triggers. See Hardware Slot Info on page 1--21.
Sequences. This field displays the sequences you have created. You can create a
maximum of four sequences, each containing a maximum of four patterns. The
default sequence is named Trigger. As you create additional sequences, they will
automatically be named Trigger1, Trigger2, and Trigger3.
Low Level Trigger