begriffs open source - cmsis/blob - main/Core/system_c_pg.html

   1 <!-- HTML header for doxygen 1.9.6-->
   2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
   3 <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US">
   4 <head>
   5 <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
   6 <meta http-equiv="X-UA-Compatible" content="IE=11"/>
   7 <meta name="viewport" content="width=device-width, initial-scale=1"/>
   8 <title>CMSIS-Core (Cortex-M): System Configuration Files system_&lt;Device&gt;.c and system_&lt;Device&gt;.h</title>
   9 <link href="doxygen.css" rel="stylesheet" type="text/css" />
  10 <script type="text/javascript" src="jquery.js"></script>
  11 <script type="text/javascript" src="dynsections.js"></script>
  12 <script type="text/javascript" src="tabs.js"></script>
  13 <script type="text/javascript" src="footer.js"></script>
  14 <script type="text/javascript" src="navtree.js"></script>
  15 <link href="navtree.css" rel="stylesheet" type="text/css"/>
  16 <script type="text/javascript" src="resize.js"></script>
  17 <script type="text/javascript" src="navtreedata.js"></script>
  18 <script type="text/javascript" src="navtree.js"></script>
  19 <link href="search/search.css" rel="stylesheet" type="text/css"/>
  20 <script type="text/javascript" src="search/searchdata.js"></script>
  21 <script type="text/javascript" src="search/search.js"></script>
  22 <script type="text/javascript">
  23 /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
  24   $(document).ready(function() { init_search(); });
  25 /* @license-end */
  26 </script>
  27 <script type="text/javascript" src="darkmode_toggle.js"></script>
  28 <link href="extra_stylesheet.css" rel="stylesheet" type="text/css"/>
  29 <link href="extra_navtree.css" rel="stylesheet" type="text/css"/>
  30 <link href="extra_search.css" rel="stylesheet" type="text/css"/>
  31 <link href="extra_tabs.css" rel="stylesheet" type="text/css"/>
  32 <link href="version.css" rel="stylesheet" type="text/css"/>
  33 <script type="text/javascript" src="../../version.js"></script>
  34 </head>
  35 <body>
  36 <div id="top"><!-- do not remove this div, it is closed by doxygen! -->
  37 <div id="titlearea">
  38 <table cellspacing="0" cellpadding="0">
  39  <tbody>
  40  <tr style="height: 55px;">
  41   <td id="projectlogo" style="padding: 1.5em;"><img alt="Logo" src="cmsis_logo_white_small.png"/></td>
  42   <td style="padding-left: 1em; padding-bottom: 1em;padding-top: 1em;">
  43    <div id="projectname">CMSIS-Core (Cortex-M)
  44    &#160;<span id="projectnumber"><script type="text/javascript">
  45      <!--
  46      writeHeader.call(this);
  47      writeVersionDropdown.call(this, "CMSIS-Core (Cortex-M)");
  48      //-->
  49     </script>
  50    </span>
  51    </div>
  52    <div id="projectbrief">CMSIS-Core support for Cortex-M processor-based devices</div>
  53   </td>
  54    <td>        <div id="MSearchBox" class="MSearchBoxInactive">
  55         <span class="left">
  56           <span id="MSearchSelect"                onmouseover="return searchBox.OnSearchSelectShow()"                onmouseout="return searchBox.OnSearchSelectHide()">&#160;</span>
  57           <input type="text" id="MSearchField" value="" placeholder="Search" accesskey="S"
  58                onfocus="searchBox.OnSearchFieldFocus(true)"
  59                onblur="searchBox.OnSearchFieldFocus(false)"
  60                onkeyup="searchBox.OnSearchFieldChange(event)"/>
  61           </span><span class="right">
  62             <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.svg" alt=""/></a>
  63           </span>
  64         </div>
  65 </td>
  66   <!--END !PROJECT_NAME-->
  67  </tr>
  68  </tbody>
  69 </table>
  70 </div>
  71 <!-- end header part -->
  72 <div id="CMSISnav" class="tabs1">
  73   <ul class="tablist">
  74     <script type="text/javascript">
  75       writeComponentTabs.call(this);
  76     </script>
  77   </ul>
  78 </div>
  79 <script type="text/javascript">
  80   writeSubComponentTabs.call(this);
  81 </script>
  82 <!-- Generated by Doxygen 1.9.6 -->
  83 <script type="text/javascript">
  84 /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
  85 var searchBox = new SearchBox("searchBox", "search/",'.html');
  86 /* @license-end */
  87 </script>
  88 </div><!-- top -->
  89 <div id="side-nav" class="ui-resizable side-nav-resizable">
  90   <div id="nav-tree">
  91     <div id="nav-tree-contents">
  92       <div id="nav-sync" class="sync"></div>
  93     </div>
  94   </div>
  95   <div id="splitbar" style="-moz-user-select:none;"
  96        class="ui-resizable-handle">
  97   </div>
  98 </div>
  99 <script type="text/javascript">
 100 /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
 101 $(document).ready(function(){initNavTree('system_c_pg.html',''); initResizable(); });
 102 /* @license-end */
 103 </script>
 104 <div id="doc-content">
 105 <!-- window showing the filter options -->
 106 <div id="MSearchSelectWindow"
 107      onmouseover="return searchBox.OnSearchSelectShow()"
 108      onmouseout="return searchBox.OnSearchSelectHide()"
 109      onkeydown="return searchBox.OnSearchSelectKey(event)">
 110 </div>
 111
 112 <!-- iframe showing the search results (closed by default) -->
 113 <div id="MSearchResultsWindow">
 114 <div id="MSearchResults">
 115 <div class="SRPage">
 116 <div id="SRIndex">
 117 <div id="SRResults"></div>
 118 <div class="SRStatus" id="Loading">Loading...</div>
 119 <div class="SRStatus" id="Searching">Searching...</div>
 120 <div class="SRStatus" id="NoMatches">No Matches</div>
 121 </div>
 122 </div>
 123 </div>
 124 </div>
 125
 126 <div><div class="header">
 127   <div class="headertitle"><div class="title">System Configuration Files system_&lt;Device&gt;.c and system_&lt;Device&gt;.h </div></div>
 128 </div><!--header-->
 129 <div class="contents">
 130 <div class="textblock"><p><a class="anchor" id="md_src_core_system_files"></a> CMSIS-Core system configuration files provide as a minimum the functions for system initialization and clock configuration as described under <a class="el" href="group__system__init__gr.html">System and Clock Configuration</a>. The file names use naming convention <code>system_&lt;Device&gt;.h</code> and <code>system_&lt;Device&gt;.c</code>, where <code>&lt;Device&gt;</code> corresponds to the device name.</p>
 131 <p><code>system_&lt;Device&gt;.h</code> file shall contain the prototypes for accessing the public functions and <code>system_&lt;Device&gt;.c</code> shall contain corresponding implementations.</p>
 132 <p>The system configuration functions are device specific and need adaptation for the target device. The silicon vendor might expose other functions and configuration parameters such as XTAL, power configuration, etc.</p>
 133 <p>Additional application-specific adaptations may be required in the initialization code and therefore the system configuration file shall be located in the application project. <a class="el" href="cmsis_files_dfps.html">Delivery in CMSIS-Packs</a> explains how this can be achieved when device support is provided in <a href="https://open-cmsis-pack.github.io/Open-CMSIS-Pack-Spec/main/html/index.html">CMSIS pack format</a>.</p>
 134 <h1><a class="anchor" id="system_Device_sec"></a>
 135 system_Device Template Files</h1>
 136 <p>CMSIS-Core <a class="el" href="cmsis_device_files.html#cmsis_template_files">Device Template Files</a> include <code>system_Device.c</code> and <code>system_Device.h</code> files that can be used as a starting point for implementing device-specific system configuration files. </p>
 137 </div></div><!-- contents -->
 138 </div><!-- PageDoc -->
 139 </div><!-- doc-content -->
 140 <!-- start footer part -->
 141 <div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
 142   <ul>
 143     <li class="footer">
 144       <script type="text/javascript">
 145         <!--
 146         writeFooter.call(this);
 147         //-->
 148       </script>
 149     </li>
 150   </ul>
 151 </div>
 152 </body>
 153 </html>