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<title>Activating traces</title>
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<h2>Activating traces</h2>
<h5>Before you start</h5>
<p>Trace activation is a way of generating specific trace data that
is relevant for your components. This reduces the amount of traces listed
on the TraceViewer user interface. For more information, see <a href="../concepts/decode_file.htm">
Dictionary file and trace activation</a>.</p>
<p>Before you can activate trace components and groups, open the Dictionary file
(.xml) that contains the necessary component and group information.
See <a href="decoding_traces.htm">Decoding binary traces with a Dictionary file</a>.</p>
<p>To activate traces: </p>
<ol>
<li>From the TraceViewer menu, select <b>Trace Activation</b>. <p>
The <b>Trace activation</b> dialog is displayed, showing the components and
groups loaded from the Dictionary file. </p></li>
<li><a name="act_conf"></a>(Optional) Activation configurations can be saved
and loaded from an XML file.
To load a saved activation configuration file:
<ol>
<li>Select <b>Load Configuration...</b> </li>
<li>Select the correct configuration from the list. </li>
<li>Click <b>OK</b>. </li>
</ol>
<p><img src="images\traceactivationConf.png"></p><p><b>Tip:</b> To save
a configuration after making changes to it, click <b>Save Current...</b>.
Then select a file, type the configuration name and click <b>OK</b>. One file
can contain several configurations. </p></li>
<li>To activate components and groups, do any of the following:
<ul>
<li>Select one or more components or groups from the list, right-click and
select <b>Activate</b>. </li>
<li>Select one or more components from the list, and double-click groups to
change the activation state or click <b>Activate</b>. </li>
<li>In the <b>Filter</b> field, type in the component or group name (or an
asterisk for a wildcard), right-click and select <b>Activate</b>.</li>
</ul>
<p>See the following example:</p>
<p><img src="images/traceactivationDialog.png" alt="Trace Activation Dialog"></p></li>
<li>If the connection to a trace source is established, click <b>Send Activation
</b> to send the activation message. </li>
</ol>
<p>The trace groups you selected are activated and traces are received from the device.</p>
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