ARM-software
/
CMSIS_5
зеркало из https://github-proxy.rt-thread.io/ARM-software/CMSIS_5.git


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186
							<!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>Firmware for CoreSight Debug Access Port</title>
<title>CMSIS-DAP: Firmware for CoreSight Debug Access Port</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 2.0.0</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 class="current"><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('index.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="headertitle">
<div class="title">Firmware for CoreSight Debug Access Port </div>  </div>
</div><!--header-->
<div class="contents">
<div class="textblock"><p><b>CMSIS-DAP</b> is a specification and a implementation of a <b>Firmware</b> that supports access to the CoreSight <b>Debug Access Port</b> (DAP).<br/>
<br/>
 The various Arm Cortex processors provide <a href="http://www.arm.com/products/system-ip/coresight/index.php" target="_blank"><b>CoreSight Debug and Trace</b></a>. CMSIS-DAP supports target Devices that contain one or more Cortex processors. A Device provides a Debug Access Port (DAP) typically either with a 5-pin JTAG or with a 2-pin Serial Wired Debug (SWD) interface that connects to a Debug Unit. CMSIS-DAP is the interface firmware for a Debug Unit that connects the Debug Port to USB. Debuggers that execute on a host computer connect via USB and the Debug Unit to the Device which runs the application software.</p>
<div class="image">
<img src="CMSIS_DAP_INTERFACE.png" alt="CMSIS_DAP_INTERFACE.png"/>
<div class="caption">
CMSIS-DAP Overview</div></div>
 <h2>Configuration of CMSIS-DAP Firmware </h2>
<p>The CMSIS-DAP Firmware version 2 can be configured in two different USB interface modes:</p>
<ul>
<li>Version 1 configuration uses USB HID as interface to the host PC.</li>
<li>Version 2 configuration uses WinUSB as interface to the host PC and provides high-speed SWO trace streaming.</li>
</ul>
<h2>Benefits of CMSIS-DAP </h2>
<ul>
<li>Provides a standardized interface for debuggers. Interfaces to many standard debuggers is available.</li>
<li>Access to CoreSight registers of all Cortex processor architectures (Cortex-A/R/M).</li>
<li>Connects via 5-pin JTAG or 2-pin Serial Wire Debug (SWD).</li>
<li>Supports multi-core debugging.</li>
<li>Supports Serial Wire Output of Cortex-M devices (new in CMSIS-DAP Version 1.1.0).</li>
<li>Easy to deploy to Debug Units based on Cortex-M microcontrollers.</li>
<li>Debug Unit may be integrated on an evaluation board.</li>
<li>USB using HID (Human Interface Device) driver class that avoids driver installation on host PC.</li>
<li>Supports time-critical JTAG or SWD command execution (new in CMSIS-DAP Version 1.10).</li>
<li>Supports Test Domain Timer for time measurement using the debug unit (new in CMSIS-DAP Version 1.2.0)</li>
</ul>
<h1>CMSIS-DAP Firmware </h1>
<p>The CMSIS-DAP Firmware is provided as source code and is fully configurable to a new Debug Unit. A source code template and several reference implementations for popular Debug Units are provided. Refer to <a class="el" href="group__DAP__Config__gr.html">Firmware Configuration</a> for more information.</p>
<p>The CMSIS-DAP Software Stack is composed of the following components:</p>
<ul>
<li>CMSIS-DAP Firmware that interfaces to JTAG or SWD Debug pins using standard I/O pins of the Cortex-M device.</li>
<li>CMSIS-Driver USART that connects the UART of the Cortex-M device to the SWO output from the target.</li>
<li>USB Communication Stack that interfaces to the USB Port of the Host Computer using the HID or custom class.</li>
<li>The USB Device middleware may require CMSIS-RTOS and a CMSIS-Driver USB.</li>
</ul>
<div class="image">
<img src="CMSIS_DAP_SWStack.png" alt="CMSIS_DAP_SWStack.png"/>
<div class="caption">
CMSIS-DAP Software Stack</div></div>
<p> In the examples provided the MDK Version 5 USB Communication Stack has been used. However it is possible to use alternative USB stacks instead.</p>
<p>The CMSIS-DAP Firmware is provided in the following directory structure.</p>
<table class="doxtable">
<tr>
<th align="left">Directory </th><th align="left">Description  </th></tr>
<tr>
<td align="left">.\CMSIS\DAP\Firmware\Config </td><td align="left">CMSIS-DAP Firmware configuration </td></tr>
<tr>
<td align="left">.\CMSIS\DAP\Firmware\Examples </td><td align="left">CMSIS-DAP Firmware adapted to various Debug Units </td></tr>
<tr>
<td align="left">.\CMSIS\DAP\Firmware\Include </td><td align="left">CMSIS-DAP Firmware header file </td></tr>
<tr>
<td align="left">.\CMSIS\DAP\Firmware\Source </td><td align="left">CMSIS-DAP Firmware source code </td></tr>
<tr>
<td align="left">.\CMSIS\DAP\Firmware\Template </td><td align="left">Interface Templates for MDK Version 5 middleware </td></tr>
</table>
<h2>Validation </h2>
<p>CMSIS-DAP compliant Debug Units must be validated using the scripts provided in <a class="el" href="group__DAP__Validate__gr.html">Validate Debug Unit</a>.</p>
<hr/>
 </div></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 Thu Apr 9 2020 15:49:12 for CMSIS-DAP Version 2.0.0 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>