xmclib/CMSIS/Documentation/DAP/html/group__DAP__Commands__gr.html

207 lines
12 KiB
HTML
Raw Permalink Normal View History

2024-10-17 17:09:59 +02:00
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>CMSIS-DAP Commands</title>
<title>CMSIS-DAP: CMSIS-DAP Commands</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="cmsis.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script type="text/javascript" src="printComponentTabs.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
$(document).ready(initResizable);
$(window).load(resizeHeight);
</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
$(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 46px;">
<td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td>
<td style="padding-left: 0.5em;">
<div id="projectname">CMSIS-DAP
&#160;<span id="projectnumber">Version 1.1.0</span>
</div>
<div id="projectbrief">Interface Firmware for CoreSight Debug Access Port</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<div id="CMSISnav" class="tabs1">
<ul class="tablist">
<script type="text/javascript">
<!--
writeComponentTabs.call(this);
//-->
</script>
</ul>
</div>
<!-- Generated by Doxygen 1.8.6 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main&#160;Page</span></a></li>
<li><a href="pages.html"><span>Usage&#160;and&#160;Description</span></a></li>
<li><a href="modules.html"><span>Reference</span></a></li>
<li>
<div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
</span>
</div>
</li>
</ul>
</div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
$(document).ready(function(){initNavTree('group__DAP__Commands__gr.html','');});
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark">&#160;</span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark">&#160;</span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Pages</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="summary">
<a href="#groups">Content</a> </div>
<div class="headertitle">
<div class="title">CMSIS-DAP Commands</div> </div>
</div><!--header-->
<div class="contents">
<p>Commands between Debug Unit and host computer.
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="groups"></a>
Content</h2></td></tr>
<tr class="memitem:group__DAP__genCommands__gr"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__DAP__genCommands__gr.html">General Commands</a></td></tr>
<tr class="memdesc:group__DAP__genCommands__gr"><td class="mdescLeft">&#160;</td><td class="mdescRight">Information and Control commands for the CMSIS-DAP Debug Unit. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:group__DAP__swj__gr"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__DAP__swj__gr.html">Common SWD/JTAG Commands</a></td></tr>
<tr class="memdesc:group__DAP__swj__gr"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set SWD/JTAG clock and control/monitor SWD/JTAG I/O pins. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:group__DAP__swd__gr"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__DAP__swd__gr.html">SWD Commands</a></td></tr>
<tr class="memdesc:group__DAP__swd__gr"><td class="mdescLeft">&#160;</td><td class="mdescRight">Configure the parameters for SWD mode. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:group__DAP__swo__gr"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__DAP__swo__gr.html">SWO Commands</a></td></tr>
<tr class="memdesc:group__DAP__swo__gr"><td class="mdescLeft">&#160;</td><td class="mdescRight">Configure the parameters for SWO mode. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:group__DAP__jtag__gr"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__DAP__jtag__gr.html">JTAG Commands</a></td></tr>
<tr class="memdesc:group__DAP__jtag__gr"><td class="mdescLeft">&#160;</td><td class="mdescRight">Detect and configure the JTAG device chain. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:group__DAP__transfer__gr"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__DAP__transfer__gr.html">Transfer Commands</a></td></tr>
<tr class="memdesc:group__DAP__transfer__gr"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read and Writes to CoreSight registers. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:group__DAP__atomic__gr"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__DAP__atomic__gr.html">Atomic Commands</a></td></tr>
<tr class="memdesc:group__DAP__atomic__gr"><td class="mdescLeft">&#160;</td><td class="mdescRight">Execute atomic commands. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:group__DAP__Response__Status"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__DAP__Response__Status.html">Response Status</a></td></tr>
<tr class="memdesc:group__DAP__Response__Status"><td class="mdescLeft">&#160;</td><td class="mdescRight">Status Information in Response Data. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<p>Commands between Debug Unit and host computer. </p>
<p>This section explains each command that is exchanged between the Debug Unit and the host computer. Every Command starts with a Command-ID and optional data. Depending on the Command, the CMSIS-DAP firmware replies with a Response that repeats the Command-ID and delivers additional data.</p>
<p>Command and Response data have a package size limitation that is defined with <a class="el" href="group__DAP__Config__Debug__gr.html#gaa28bb1da2661291634c4a8fb3e227404">DAP_PACKET_SIZE</a>. This configuration setting can be obtained with the command <a class="el" href="group__DAP__Info.html">DAP_Info</a> and is used to optimize the performance for Full-Speed or High-Speed USB. The debugger must ensure that each data package fits within the limitations of the configured <a class="el" href="group__DAP__Config__Debug__gr.html#gaa28bb1da2661291634c4a8fb3e227404">DAP_PACKET_SIZE</a>.</p>
<h2>Conventions and Command Structure </h2>
<p>The following conventions describe the command semantic used in the following documentation:</p>
<table class="doxtable">
<tr>
<th>Symbol </th><th>Description </th></tr>
<tr>
<td>&gt; </td><td>Prefix indicating the direction: Command from host to Debug Unit. </td></tr>
<tr>
<td>&lt; </td><td>Prefix indicating the direction: Response from Debug Unit to host. </td></tr>
<tr>
<td>BYTE </td><td>8-bit value. </td></tr>
<tr>
<td>SHORT </td><td>16-bit value. </td></tr>
<tr>
<td>WORD </td><td>32-bit value. </td></tr>
<tr>
<td>0x01 </td><td>Fixed HEX value in C notation. Used for example to identify a command. </td></tr>
<tr>
<td>Reserved </td><td>The field above is reserved for future extension. </td></tr>
<tr>
<td>**** </td><td>The field above has exactly one occurrence. </td></tr>
<tr>
<td>++++ </td><td>The field above has a variable length. </td></tr>
<tr>
<td>////// </td><td>The field above is repeated and may appear 0..n times. </td></tr>
</table>
<p>The commands are described in a structure consisting of three lines.</p>
<ul>
<li>The first line indicates the field type.</li>
<li>The second line indicates the communication direction and the command structure.</li>
<li>The third line indicates the occurrence of the field.</li>
</ul>
<p><b>Examples:</b> </p>
<div class="fragment"><div class="line"> BYTE | SHORT *| WORD ***|</div>
<div class="line">&gt; 0x99 | RecLen | Data |</div>
<div class="line"> |********|+++++++++| </div>
</div><!-- fragment --><p>The Command with the Command-ID <em>0x99</em> is sent from the host computer to the Debug Unit. The value of <em>RecLen</em> indicates the number of WORDS that follow with <em>Data</em>. <em>Data</em> is repeated several times depending on the value of <em>RecLen</em>.</p>
<p>Depending on the Command the Debug Unit may send a <b>Response</b>. </p>
<div class="fragment"><div class="line"> BYTE ***| WORD***********|</div>
<div class="line">&lt; 0 | Register Value |</div>
<div class="line"> Reserved|****************|</div>
</div><!-- fragment --> </div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="footer">Generated on Wed Feb 8 2017 10:20:42 for CMSIS-DAP by ARM Ltd. All rights reserved.
<!--
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6
-->
</li>
</ul>
</div>
</body>
</html>