User Manual Part 2

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Merlin Protocol Analyzer User’s ManualCATC Version 1.6
Options
The Options box contains two options:
Beep When Trigger Occurs
Will cause the PC to beep when a trigger event
has occurred.
Save External Interface Signals
Will enable Merlin to record input signals from
a breakout board as fields in a trace.
Buffer Size
The Buffer Size box has a slide bar for adjusting the
recording buffer size from 0.1 megabytes to 128
megabytes.
The Recording Type option determines how this buffer is used. Although
there are 128 megabytes of physical memory in the analyzer, the efficiency
of the recording ranges from 2:1 to 4:1 ratios of physical memory to actual
Bluetooth™ traffic. Shorter Bluetooth™ packets yield a less efficient
recording. The non-traffic portion of physical memory is utilized for control
and timing information.
Note The scale is not linear and affords more granularity in the smaller buffer sizes.
Trigger Position
The Trigger Position slide bar sets the amount of
post-trigger recording that Merlin will perform. It also
allows adjustment of the location of the trigger within
the defined buffer. You can adjust the Triggering
Position between 1 and 99% post-Trigger. Trigger
Position is available only when Manual Trigger or Event Trigger is
selected as Recording type.
As an example, if the buffer size is set to 16MB, then for the following
Trigger Position settings, the amount of pre- and post-Trigger data is