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<title>CMSIS-DAP: DAP_TransferConfigure</title>
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<div id="projectname">CMSIS-DAP
 <span id="projectnumber">Version 1.1.0</span>
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<div id="projectbrief">Interface Firmware for CoreSight Debug Access Port</div>
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<div class="title">DAP_TransferConfigure<div class="ingroups"><a class="el" href="group__DAP__transfer__gr.html">Transfer Commands</a></div></div> </div>
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<p>Configure Transfers.
<a href="#details">More...</a></p>
<p>Configure Transfers. </p>
<p>The <b>DAP_TransferConfigure Command</b> sets parameters for <a class="el" href="group__DAP__Transfer.html">DAP_Transfer</a> and <a class="el" href="group__DAP__TransferBlock.html">DAP_TransferBlock</a>.</p>
<p><b>DAP_TransferConfigure Command:</b> </p>
<div class="fragment"><div class="line"> BYTE | BYTE ******** SHORT *****| SHORT ******|</div>
<div class="line">> 0x04 | Idle Cycles | WAIT Retry | Match Retry |</div>
<div class="line"> |*************|************|*************|</div>
</div><!-- fragment --><ul>
<li><b>Idle Cycles</b>: Number of extra idle cycles after each transfer.</li>
<li><b>WAIT Retry</b>: Number of transfer retries after WAIT response.</li>
<li><b>Match Retry</b>: Number of retries on reads with Value Match in <a class="el" href="group__DAP__Transfer.html">DAP_Transfer</a>. On value mismatch the Register is read again until its value matches or the <b>Match Retry</b> count exceeds.<br/>
<div class="fragment"><div class="line">retry = Match_Retry;</div>
<div class="line"><span class="keywordflow">do</span> {</div>
<div class="line"> <span class="keywordflow">if</span> ((Register_Value & Match_Mask) == Match_Value) <span class="keywordflow">break</span>;</div>
<div class="line">} <span class="keywordflow">while</span> (retry--);</div>
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<p><b>DAP_TransferConfigure Response</b>: </p>
<div class="fragment"><div class="line"> BYTE | BYTE **|</div>
<div class="line">< 0x04 | Status |</div>
<div class="line"> |********|</div>
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<li><b>Status:</b> <a class="el" href="group__DAP__Response__Status.html">Response Status</a> </li>
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