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USB Protocol Suite User Manual
Chapter 11: Traffic Generation (2.0)
11.2 Traffic Generation Files
The system generates USB 2.0 traffic from traffic generation files (*.utg) which are
text-based script files that instruct the Generator how to generate USB 2.0 traffic. These
script files can be edited with either a simple text editor such as Notepad or with the
Script Editor utility provided by the application. The Script Editor utility has several aids
to simplify the process of writing and editing scripts: tool-tips, drop-down menus, and
colored fields.
The script example below shows the beginning of a traffic generation file created through
the Export command. This command provides an easy way to create a generation file you open a trace file, then run the Export command. The trace serves as a blueprint for
the traffic generation file. The example below shows several commented lines followed
by some instructions.
This generation file causes the system to simulate a hub and to generate 24,320 packets.
See Section 11.9, “Device Emulation” on page 308 for details about the format of traffic
generation files.
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