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| author | Ali Labbene <ali.labbene@st.com> | 2019-12-11 08:59:21 +0100 |
|---|---|---|
| committer | Ali Labbene <ali.labbene@st.com> | 2019-12-16 16:35:24 +0100 |
| commit | 9f95ff5b6ba01db09552b84a0ab79607060a2666 (patch) | |
| tree | 8a6e0dda832555c692307869aed49d07ee7facfe /docs/RTOS2/html/group__CMSIS__RTOS__KernelCtrl.html | |
| parent | 76177aa280494bb36d7a0bcbda1078d4db717020 (diff) | |
| download | st-cmsis-core-lowfat-9f95ff5b6ba01db09552b84a0ab79607060a2666.tar.gz st-cmsis-core-lowfat-9f95ff5b6ba01db09552b84a0ab79607060a2666.tar.bz2 st-cmsis-core-lowfat-9f95ff5b6ba01db09552b84a0ab79607060a2666.zip | |
Official ARM version: v5.4.0
Add CMSIS V5.4.0, please refer to index.html available under \docs folder.
Note: content of \CMSIS\Core\Include has been copied under \Include to keep the same structure
used in existing projects, and thus avoid projects mass update
Note: the following components have been removed from ARM original delivery (as not used in ST packages)
- CMSIS_EW2018.pdf
- .gitattributes
- .gitignore
- \Device
- \CMSIS
- \CoreValidation
- \DAP
- \Documentation
- \DoxyGen
- \Driver
- \Pack
- \RTOS\CMSIS_RTOS_Tutorial.pdf
- \RTOS\RTX
- \RTOS\Template
- \RTOS2\RTX
- \Utilities
- All ARM/GCC projects files are deleted from \DSP, \RTOS and \RTOS2
Change-Id: Ia026c3f0f0d016627a4fb5a9032852c33d24b4d3
Diffstat (limited to 'docs/RTOS2/html/group__CMSIS__RTOS__KernelCtrl.html')
| -rw-r--r-- | docs/RTOS2/html/group__CMSIS__RTOS__KernelCtrl.html | 813 |
1 files changed, 813 insertions, 0 deletions
diff --git a/docs/RTOS2/html/group__CMSIS__RTOS__KernelCtrl.html b/docs/RTOS2/html/group__CMSIS__RTOS__KernelCtrl.html new file mode 100644 index 0000000..7f2075b --- /dev/null +++ b/docs/RTOS2/html/group__CMSIS__RTOS__KernelCtrl.html @@ -0,0 +1,813 @@ +<!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>Kernel Information and Control</title> +<title>CMSIS-RTOS2: Kernel Information and Control</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-RTOS2 +  <span id="projectnumber">Version 2.1.3</span> + </div> + <div id="projectbrief">Real-Time Operating System: API and RTX Reference Implementation</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 Page</span></a></li> + <li><a href="pages.html"><span>Usage and 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__CMSIS__RTOS__KernelCtrl.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"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </span>Macros</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark"> </span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(10)"><span class="SelectionMark"> </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="#nested-classes">Data Structures</a> | +<a href="#enum-members">Enumerations</a> | +<a href="#func-members">Functions</a> </div> + <div class="headertitle"> +<div class="title">Kernel Information and Control<div class="ingroups"><a class="el" href="group__CMSIS__RTOS.html">CMSIS-RTOS API v2</a></div></div> </div> +</div><!--header--> +<div class="contents"> + +<p>Provides version/system information and starts/controls the RTOS Kernel. +<a href="#details">More...</a></p> +<table class="memberdecls"> +<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a> +Data Structures</h2></td></tr> +<tr class="memitem:structosVersion__t"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#structosVersion__t">osVersion_t</a></td></tr> +<tr class="memdesc:structosVersion__t"><td class="mdescLeft"> </td><td class="mdescRight">Version information. <a href="group__CMSIS__RTOS__KernelCtrl.html#structosVersion__t">More...</a><br/></td></tr> +<tr class="separator:structosVersion__t"><td class="memSeparator" colspan="2"> </td></tr> +</table><table class="memberdecls"> +<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a> +Enumerations</h2></td></tr> +<tr class="memitem:ga08326469274b668140ca934b168a5ad4"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4">osKernelState_t</a> { <br/> +  <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4a2ad3e5912db47b497529d036c89e7995">osKernelInactive</a> = 0, +<br/> +  <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4a0596c6e14113447604753656417c9a24">osKernelReady</a> = 1, +<br/> +  <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4a8e0b699fbe1c8bb66fefadd5911cb6ce">osKernelRunning</a> = 2, +<br/> +  <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4a2fe382ad5ebab2257b35740414b28b01">osKernelLocked</a> = 3, +<br/> +  <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4ad364464ad84d63b1413a9ac8a962390c">osKernelSuspended</a> = 4, +<br/> +  <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4a0545c92c18ce8e6b24e82a0d694a0b4a">osKernelError</a> = -1, +<br/> +  <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4ab0a47576defa29396a649d9173d4bc4b">osKernelReserved</a> = 0x7FFFFFFFU +<br/> + }</td></tr> +<tr class="memdesc:ga08326469274b668140ca934b168a5ad4"><td class="mdescLeft"> </td><td class="mdescRight">Kernel state. <a href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4">More...</a><br/></td></tr> +<tr class="separator:ga08326469274b668140ca934b168a5ad4"><td class="memSeparator" colspan="2"> </td></tr> +</table><table class="memberdecls"> +<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> +Functions</h2></td></tr> +<tr class="memitem:gae818f6611d25ba3140bede410a52d659"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gae818f6611d25ba3140bede410a52d659">osKernelInitialize</a> (void)</td></tr> +<tr class="memdesc:gae818f6611d25ba3140bede410a52d659"><td class="mdescLeft"> </td><td class="mdescRight">Initialize the RTOS Kernel. <a href="#gae818f6611d25ba3140bede410a52d659">More...</a><br/></td></tr> +<tr class="separator:gae818f6611d25ba3140bede410a52d659"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga6f7764e7250c5c5364c00c45a5d1d199"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga6f7764e7250c5c5364c00c45a5d1d199">osKernelGetInfo</a> (<a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#structosVersion__t">osVersion_t</a> *version, char *id_buf, uint32_t id_size)</td></tr> +<tr class="memdesc:ga6f7764e7250c5c5364c00c45a5d1d199"><td class="mdescLeft"> </td><td class="mdescRight">Get RTOS Kernel Information. <a href="#ga6f7764e7250c5c5364c00c45a5d1d199">More...</a><br/></td></tr> +<tr class="separator:ga6f7764e7250c5c5364c00c45a5d1d199"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga48b69b81012fce051f639be288b243ba"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4">osKernelState_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga48b69b81012fce051f639be288b243ba">osKernelGetState</a> (void)</td></tr> +<tr class="memdesc:ga48b69b81012fce051f639be288b243ba"><td class="mdescLeft"> </td><td class="mdescRight">Get the current RTOS Kernel state. <a href="#ga48b69b81012fce051f639be288b243ba">More...</a><br/></td></tr> +<tr class="separator:ga48b69b81012fce051f639be288b243ba"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga9ae2cc00f0d89d7b6a307bba942b5221"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga9ae2cc00f0d89d7b6a307bba942b5221">osKernelStart</a> (void)</td></tr> +<tr class="memdesc:ga9ae2cc00f0d89d7b6a307bba942b5221"><td class="mdescLeft"> </td><td class="mdescRight">Start the RTOS Kernel scheduler. <a href="#ga9ae2cc00f0d89d7b6a307bba942b5221">More...</a><br/></td></tr> +<tr class="separator:ga9ae2cc00f0d89d7b6a307bba942b5221"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga948609ee930d9b38336b9e1c2a4dfe12"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga948609ee930d9b38336b9e1c2a4dfe12">osKernelLock</a> (void)</td></tr> +<tr class="memdesc:ga948609ee930d9b38336b9e1c2a4dfe12"><td class="mdescLeft"> </td><td class="mdescRight">Lock the RTOS Kernel scheduler. <a href="#ga948609ee930d9b38336b9e1c2a4dfe12">More...</a><br/></td></tr> +<tr class="separator:ga948609ee930d9b38336b9e1c2a4dfe12"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:gaf401728b4657456198c33fe75f8d6720"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gaf401728b4657456198c33fe75f8d6720">osKernelUnlock</a> (void)</td></tr> +<tr class="memdesc:gaf401728b4657456198c33fe75f8d6720"><td class="mdescLeft"> </td><td class="mdescRight">Unlock the RTOS Kernel scheduler. <a href="#gaf401728b4657456198c33fe75f8d6720">More...</a><br/></td></tr> +<tr class="separator:gaf401728b4657456198c33fe75f8d6720"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:gae7d0a71b9586cbbb49fcbdf6a04f0289"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gae7d0a71b9586cbbb49fcbdf6a04f0289">osKernelRestoreLock</a> (int32_t lock)</td></tr> +<tr class="memdesc:gae7d0a71b9586cbbb49fcbdf6a04f0289"><td class="mdescLeft"> </td><td class="mdescRight">Restore the RTOS Kernel scheduler lock state. <a href="#gae7d0a71b9586cbbb49fcbdf6a04f0289">More...</a><br/></td></tr> +<tr class="separator:gae7d0a71b9586cbbb49fcbdf6a04f0289"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:gae26683e1606ec633354a2876c68f0c1f"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gae26683e1606ec633354a2876c68f0c1f">osKernelSuspend</a> (void)</td></tr> +<tr class="memdesc:gae26683e1606ec633354a2876c68f0c1f"><td class="mdescLeft"> </td><td class="mdescRight">Suspend the RTOS Kernel scheduler. <a href="#gae26683e1606ec633354a2876c68f0c1f">More...</a><br/></td></tr> +<tr class="separator:gae26683e1606ec633354a2876c68f0c1f"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga8c4b4d7ed34cab73c001665d9176aced"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga8c4b4d7ed34cab73c001665d9176aced">osKernelResume</a> (uint32_t sleep_ticks)</td></tr> +<tr class="memdesc:ga8c4b4d7ed34cab73c001665d9176aced"><td class="mdescLeft"> </td><td class="mdescRight">Resume the RTOS Kernel scheduler. <a href="#ga8c4b4d7ed34cab73c001665d9176aced">More...</a><br/></td></tr> +<tr class="separator:ga8c4b4d7ed34cab73c001665d9176aced"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga84bcdbf2fb76b10c8df4e439f0c7e11b"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga84bcdbf2fb76b10c8df4e439f0c7e11b">osKernelGetTickCount</a> (void)</td></tr> +<tr class="memdesc:ga84bcdbf2fb76b10c8df4e439f0c7e11b"><td class="mdescLeft"> </td><td class="mdescRight">Get the RTOS kernel tick count. <a href="#ga84bcdbf2fb76b10c8df4e439f0c7e11b">More...</a><br/></td></tr> +<tr class="separator:ga84bcdbf2fb76b10c8df4e439f0c7e11b"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga7a8d7bd927eaaa58999f91d7d6310cee"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga7a8d7bd927eaaa58999f91d7d6310cee">osKernelGetTickFreq</a> (void)</td></tr> +<tr class="memdesc:ga7a8d7bd927eaaa58999f91d7d6310cee"><td class="mdescLeft"> </td><td class="mdescRight">Get the RTOS kernel tick frequency. <a href="#ga7a8d7bd927eaaa58999f91d7d6310cee">More...</a><br/></td></tr> +<tr class="separator:ga7a8d7bd927eaaa58999f91d7d6310cee"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:gae0fcaff6cecfb4013bb556c87afcd7d2"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gae0fcaff6cecfb4013bb556c87afcd7d2">osKernelGetSysTimerCount</a> (void)</td></tr> +<tr class="memdesc:gae0fcaff6cecfb4013bb556c87afcd7d2"><td class="mdescLeft"> </td><td class="mdescRight">Get the RTOS kernel system timer count. <a href="#gae0fcaff6cecfb4013bb556c87afcd7d2">More...</a><br/></td></tr> +<tr class="separator:gae0fcaff6cecfb4013bb556c87afcd7d2"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga4d69215a93220f72be3684cad582f16a"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga4d69215a93220f72be3684cad582f16a">osKernelGetSysTimerFreq</a> (void)</td></tr> +<tr class="memdesc:ga4d69215a93220f72be3684cad582f16a"><td class="mdescLeft"> </td><td class="mdescRight">Get the RTOS kernel system timer frequency. <a href="#ga4d69215a93220f72be3684cad582f16a">More...</a><br/></td></tr> +<tr class="separator:ga4d69215a93220f72be3684cad582f16a"><td class="memSeparator" colspan="2"> </td></tr> +</table> +<a name="details" id="details"></a><h2 class="groupheader">Description</h2> +<p>The kernel Information and Control function group allows to:</p> +<ul> +<li>obtain information about the system and the underlying kernel.</li> +<li>obtain version information about the CMSIS-RTOS API.</li> +<li>initialize of the RTOS kernel for creating objects.</li> +<li>start the RTOS kernel and thread switching.</li> +<li>check the execution status of the RTOS kernel.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>The kernel information and control functions cannot be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>. </dd> +<dd> +The kernel initialization for RTX5 is documented in <a class="el" href="theory_of_operation.html#SystemStartup">System Startup</a>.</dd></dl> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="comment">/*----------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment"> * Application main thread</span></div> +<div class="line"><span class="comment"> *---------------------------------------------------------------------------*/</span></div> +<div class="line"><span class="keywordtype">void</span> app_main (<span class="keywordtype">void</span> *argument) {</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// ...</span></div> +<div class="line"> <span class="keywordflow">for</span> (;;) {}</div> +<div class="line">}</div> +<div class="line"> </div> +<div class="line"><span class="keywordtype">int</span> main (<span class="keywordtype">void</span>) {</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// System Initialization</span></div> +<div class="line"> SystemCoreClockUpdate();</div> +<div class="line"><span class="preprocessor">#ifdef RTE_Compiler_EventRecorder</span></div> +<div class="line"><span class="preprocessor"></span> <span class="comment">// Initialize and start Event Recorder</span></div> +<div class="line"> EventRecorderInitialize(EventRecordError, 1U);</div> +<div class="line"><span class="preprocessor">#endif</span></div> +<div class="line"><span class="preprocessor"></span> <span class="comment">// ...</span></div> +<div class="line"> </div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae818f6611d25ba3140bede410a52d659">osKernelInitialize</a>(); <span class="comment">// Initialize CMSIS-RTOS</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__ThreadMgmt.html#ga48d68b8666d99d28fa646ee1d2182b8f">osThreadNew</a>(app_main, NULL, NULL); <span class="comment">// Create application main thread</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga9ae2cc00f0d89d7b6a307bba942b5221">osKernelStart</a>(); <span class="comment">// Start thread execution</span></div> +<div class="line"> <span class="keywordflow">for</span> (;;) {}</div> +<div class="line">}</div> +</div><!-- fragment --> <hr/><h2 class="groupheader">Data Structure Documentation</h2> +<a name="structosVersion__t" id="structosVersion__t"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">struct osVersion_t</td> + </tr> + </table> +</div><div class="memdoc"> +<div class="textblock"><p>Identifies the underlying RTOS kernel and API version number. The version is represented in a combined decimal number in the format: major.minor.rev: mmnnnrrrr</p> +<p>Use <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga6f7764e7250c5c5364c00c45a5d1d199">osKernelGetInfo</a> to retrieve the version numbers. </p> +</div><table class="fieldtable"> +<tr><th colspan="3">Data Fields</th></tr> +<tr><td class="fieldtype"> +<a class="anchor" id="a76a1ef1a4d3d9bd3e70783051f22a6d3"></a>uint32_t</td> +<td class="fieldname"> +api</td> +<td class="fielddoc"> +API version (major.minor.rev: mmnnnrrrr dec). </td></tr> +<tr><td class="fieldtype"> +<a class="anchor" id="ad8075d3f42141346ae2c56389358f9e7"></a>uint32_t</td> +<td class="fieldname"> +kernel</td> +<td class="fielddoc"> +Kernel version (major.minor.rev: mmnnnrrrr dec). </td></tr> +</table> + +</div> +</div> +<h2 class="groupheader">Enumeration Type Documentation</h2> +<a class="anchor" id="ga08326469274b668140ca934b168a5ad4"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">enum <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4">osKernelState_t</a></td> + </tr> + </table> +</div><div class="memdoc"> +<p>State of the kernel as retrieved by <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga48b69b81012fce051f639be288b243ba">osKernelGetState</a>. In case <b>osKernelGetState</b> fails or if it is called from an ISR, it will return <code>osKernelError</code>, otherwise it returns the kernel state. </p> +<table class="fieldtable"> +<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="ga08326469274b668140ca934b168a5ad4a2ad3e5912db47b497529d036c89e7995"></a>osKernelInactive</em> </td><td class="fielddoc"> +<p>Inactive. </p> +<p>The kernel is not ready yet. <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gae818f6611d25ba3140bede410a52d659">osKernelInitialize</a> needs to be executed successfully. </p> +</td></tr> +<tr><td class="fieldname"><em><a class="anchor" id="ga08326469274b668140ca934b168a5ad4a0596c6e14113447604753656417c9a24"></a>osKernelReady</em> </td><td class="fielddoc"> +<p>Ready. </p> +<p>The kernel is not yet running. <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga9ae2cc00f0d89d7b6a307bba942b5221">osKernelStart</a> transfers the kernel to the running state. </p> +</td></tr> +<tr><td class="fieldname"><em><a class="anchor" id="ga08326469274b668140ca934b168a5ad4a8e0b699fbe1c8bb66fefadd5911cb6ce"></a>osKernelRunning</em> </td><td class="fielddoc"> +<p>Running. </p> +<p>The kernel is initialized and running. </p> +</td></tr> +<tr><td class="fieldname"><em><a class="anchor" id="ga08326469274b668140ca934b168a5ad4a2fe382ad5ebab2257b35740414b28b01"></a>osKernelLocked</em> </td><td class="fielddoc"> +<p>Locked. </p> +<p>The kernel was locked with <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga948609ee930d9b38336b9e1c2a4dfe12">osKernelLock</a>. The functions <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gaf401728b4657456198c33fe75f8d6720">osKernelUnlock</a> or <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gae7d0a71b9586cbbb49fcbdf6a04f0289">osKernelRestoreLock</a> unlocks it. </p> +</td></tr> +<tr><td class="fieldname"><em><a class="anchor" id="ga08326469274b668140ca934b168a5ad4ad364464ad84d63b1413a9ac8a962390c"></a>osKernelSuspended</em> </td><td class="fielddoc"> +<p>Suspended. </p> +<p>The kernel was suspended using <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gae26683e1606ec633354a2876c68f0c1f">osKernelSuspend</a>. The function <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga8c4b4d7ed34cab73c001665d9176aced">osKernelResume</a> returns to normal operation. </p> +</td></tr> +<tr><td class="fieldname"><em><a class="anchor" id="ga08326469274b668140ca934b168a5ad4a0545c92c18ce8e6b24e82a0d694a0b4a"></a>osKernelError</em> </td><td class="fielddoc"> +<p>Error. </p> +<p>An error occurred. </p> +</td></tr> +<tr><td class="fieldname"><em><a class="anchor" id="ga08326469274b668140ca934b168a5ad4ab0a47576defa29396a649d9173d4bc4b"></a>osKernelReserved</em> </td><td class="fielddoc"> +<p>Prevents enum down-size compiler optimization. </p> +<p>Reserved. </p> +</td></tr> +</table> + +</div> +</div> +<h2 class="groupheader">Function Documentation</h2> +<a class="anchor" id="gae818f6611d25ba3140bede410a52d659"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> osKernelInitialize </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>status code that indicates the execution status of the function.</dd></dl> +<p>The function <b>osKernelInitialize</b> initializes the RTOS Kernel. Before it is successfully executed, only the functions <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga6f7764e7250c5c5364c00c45a5d1d199">osKernelGetInfo</a> and <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga48b69b81012fce051f639be288b243ba">osKernelGetState</a> may be called.</p> +<p>Possible <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> return values:</p> +<ul> +<li><em>osOK</em> in case of success.</li> +<li><em>osError</em> if an unspecific error occurred.</li> +<li><em>osErrorISR</em> if called from an <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routine</a>.</li> +<li><em>osErrorNoMemory</em> if no memory could be reserved for the operation.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>This function <b>cannot</b> be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b> Code Example</b> </p> +<div class="fragment"><div class="line"><span class="preprocessor">#include "RTE_Components.h"</span></div> +<div class="line"><span class="preprocessor">#include CMSIS_device_header</span></div> +<div class="line"><span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="cmsis__os2_8h.html">cmsis_os2.h</a>"</span></div> +<div class="line"> </div> +<div class="line"><span class="comment">/*----------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment"> * Application main thread</span></div> +<div class="line"><span class="comment"> *---------------------------------------------------------------------------*/</span></div> +<div class="line"><span class="keywordtype">void</span> app_main (<span class="keywordtype">void</span> *argument) {</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// ...</span></div> +<div class="line"> <span class="keywordflow">for</span> (;;) {}</div> +<div class="line">}</div> +<div class="line"> </div> +<div class="line"><span class="keywordtype">int</span> main (<span class="keywordtype">void</span>) {</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// System Initialization</span></div> +<div class="line"> SystemCoreClockUpdate();</div> +<div class="line"> <span class="comment">// ...</span></div> +<div class="line"> </div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae818f6611d25ba3140bede410a52d659">osKernelInitialize</a>(); <span class="comment">// Initialize CMSIS-RTOS</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__ThreadMgmt.html#ga48d68b8666d99d28fa646ee1d2182b8f">osThreadNew</a>(app_main, NULL, NULL); <span class="comment">// Create application main thread</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga9ae2cc00f0d89d7b6a307bba942b5221">osKernelStart</a>(); <span class="comment">// Start thread execution</span></div> +<div class="line"> <span class="keywordflow">for</span> (;;) {}</div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga6f7764e7250c5c5364c00c45a5d1d199"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> osKernelGetInfo </td> + <td>(</td> + <td class="paramtype"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#structosVersion__t">osVersion_t</a> * </td> + <td class="paramname"><em>version</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">char * </td> + <td class="paramname"><em>id_buf</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint32_t </td> + <td class="paramname"><em>id_size</em> </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramdir">[out]</td><td class="paramname">version</td><td>pointer to buffer for retrieving version information. </td></tr> + <tr><td class="paramdir">[out]</td><td class="paramname">id_buf</td><td>pointer to buffer for retrieving kernel identification string. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">id_size</td><td>size of buffer for kernel identification string. </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>status code that indicates the execution status of the function.</dd></dl> +<p>The function <b>osKernelGetInfo</b> retrieves the API and kernel version of the underlying RTOS kernel and a human readable identifier string for the kernel. It can be safely called before the RTOS is initialized or started (call to <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gae818f6611d25ba3140bede410a52d659">osKernelInitialize</a> or <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga9ae2cc00f0d89d7b6a307bba942b5221">osKernelStart</a>).</p> +<p>Possible <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> return values:</p> +<ul> +<li><em>osOK</em> in case of success.</li> +<li><em>osError</em> if an unspecific error occurred.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>This function may be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">void</span> info (<span class="keywordtype">void</span>) {</div> +<div class="line"> <span class="keywordtype">char</span> infobuf[100];</div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#structosVersion__t">osVersion_t</a> osv;</div> +<div class="line"> osStatus_t status;</div> +<div class="line"> </div> +<div class="line"> status = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga6f7764e7250c5c5364c00c45a5d1d199">osKernelGetInfo</a>(&osv, infobuf, <span class="keyword">sizeof</span>(infobuf));</div> +<div class="line"> <span class="keywordflow">if</span>(status == <a class="code" href="cmsis__os2_8h.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813ea9e1c9e2550bb4de8969a935acffc968f">osOK</a>) {</div> +<div class="line"> printf(<span class="stringliteral">"Kernel Information: %s\r\n"</span>, infobuf);</div> +<div class="line"> printf(<span class="stringliteral">"Kernel Version : %d\r\n"</span>, osv.<a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ad8075d3f42141346ae2c56389358f9e7">kernel</a>);</div> +<div class="line"> printf(<span class="stringliteral">"Kernel API Version: %d\r\n"</span>, osv.<a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#a76a1ef1a4d3d9bd3e70783051f22a6d3">api</a>);</div> +<div class="line"> }</div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga48b69b81012fce051f639be288b243ba"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4">osKernelState_t</a> osKernelGetState </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>current RTOS Kernel state.</dd></dl> +<p>The function <b>osKernelGetState</b> returns the current state of the kernel and can be safely called before the RTOS is initialized or started (call to <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gae818f6611d25ba3140bede410a52d659">osKernelInitialize</a> or <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga9ae2cc00f0d89d7b6a307bba942b5221">osKernelStart</a>). In case it fails it will return <code>osKernelError</code>, otherwise it returns the kernel state (refer to <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4">osKernelState_t</a> for the list of kernel states).</p> +<p>Possible <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga08326469274b668140ca934b168a5ad4">osKernelState_t</a> return values:</p> +<ul> +<li><a class="el" href="cmsis__os2_8h.html#ga08326469274b668140ca934b168a5ad4a0545c92c18ce8e6b24e82a0d694a0b4a">osKernelError</a> if an unspecific error occurred.</li> +<li>the actual kernel state otherwise.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>This function may be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> main (<span class="keywordtype">void</span>) {</div> +<div class="line"> <span class="comment">// System Initialization</span></div> +<div class="line"> SystemCoreClockUpdate();</div> +<div class="line"> <span class="comment">// ...</span></div> +<div class="line"> <span class="keywordflow">if</span>(<a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga48b69b81012fce051f639be288b243ba">osKernelGetState</a>() == <a class="code" href="cmsis__os2_8h.html#ga08326469274b668140ca934b168a5ad4a2ad3e5912db47b497529d036c89e7995">osKernelInactive</a>) { <span class="comment">// Is the kernel initialized?</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae818f6611d25ba3140bede410a52d659">osKernelInitialize</a>(); <span class="comment">// Initialize CMSIS-RTOS kernel</span></div> +<div class="line"> }</div> +<div class="line"> ;</div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga9ae2cc00f0d89d7b6a307bba942b5221"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> osKernelStart </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>status code that indicates the execution status of the function.</dd></dl> +<p>The function <b>osKernelStart</b> starts the RTOS kernel and begins thread switching. It will not return to its calling function in case of success. Before it is successfully executed, only the functions <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga6f7764e7250c5c5364c00c45a5d1d199">osKernelGetInfo</a>, <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga48b69b81012fce051f639be288b243ba">osKernelGetState</a>, and object creation functions (<b>osXxxNew</b>) may be called.</p> +<p>At least one initial thread should be created prior osKernelStart, see <a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#ga48d68b8666d99d28fa646ee1d2182b8f">osThreadNew</a>.</p> +<p>Possible <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> return values:</p> +<ul> +<li><em>osError</em> if an unspecific error occurred.</li> +<li><em>osErrorISR</em> if called from an <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routine</a>.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>This function <b>cannot</b> be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">int</span> main (<span class="keywordtype">void</span>) {</div> +<div class="line"> <span class="comment">// System Initialization</span></div> +<div class="line"> SystemCoreClockUpdate();</div> +<div class="line"> <span class="comment">// ...</span></div> +<div class="line"> <span class="keywordflow">if</span>(<a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga48b69b81012fce051f639be288b243ba">osKernelGetState</a>() == <a class="code" href="cmsis__os2_8h.html#ga08326469274b668140ca934b168a5ad4a2ad3e5912db47b497529d036c89e7995">osKernelInactive</a>) {</div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae818f6611d25ba3140bede410a52d659">osKernelInitialize</a>();</div> +<div class="line"> }</div> +<div class="line"> ; <span class="comment">// ... Start Threads</span></div> +<div class="line"> <span class="keywordflow">if</span> (<a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga48b69b81012fce051f639be288b243ba">osKernelGetState</a>() == <a class="code" href="cmsis__os2_8h.html#ga08326469274b668140ca934b168a5ad4a0596c6e14113447604753656417c9a24">osKernelReady</a>) { <span class="comment">// If kernel is ready to run...</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga9ae2cc00f0d89d7b6a307bba942b5221">osKernelStart</a>(); <span class="comment">// ... start thread execution</span></div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">while</span>(1); <span class="comment">// only reached in case of error</span></div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga948609ee930d9b38336b9e1c2a4dfe12"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">int32_t osKernelLock </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>previous lock state (1 - locked, 0 - not locked, error code if negative).</dd></dl> +<p>The function <b>osKernelLock</b> allows to lock all task switches. It returns the previous value of the lock state (<span class="XML-Token">1</span> if it was locked, <span class="XML-Token">0</span> if it was unlocked), or a negative number representing an error code otherwise (refer to <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a>).</p> +<p>Possible <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> return values:</p> +<ul> +<li><em>osError</em> if an unspecific error occurred.</li> +<li><em>osErrorISR</em> if called from an <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routine</a>.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>This function <b>cannot</b> be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line">int32_t state = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga948609ee930d9b38336b9e1c2a4dfe12">osKernelLock</a>();</div> +<div class="line"><span class="comment">// ... critical code</span></div> +<div class="line">osKernelRestore(state);</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="gaf401728b4657456198c33fe75f8d6720"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">int32_t osKernelUnlock </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>previous lock state (1 - locked, 0 - not locked, error code if negative).</dd></dl> +<p>The function <b>osKernelUnlock</b> resumes from <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga948609ee930d9b38336b9e1c2a4dfe12">osKernelLock</a>. It returns the previous value of the lock state (<span class="XML-Token">1</span> if it was locked, <span class="XML-Token">0</span> if it was unlocked), or a negative number representing an error code otherwise (refer to <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a>).</p> +<p>Possible <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> return values:</p> +<ul> +<li><em>osError</em> if an unspecific error occurred.</li> +<li><em>osErrorISR</em> if called from an <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routine</a>.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>This function <b>cannot</b> be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line">int32_t sl = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga948609ee930d9b38336b9e1c2a4dfe12">osKernelLock</a>();</div> +<div class="line"><span class="comment">// ... critical code</span></div> +<div class="line">{</div> +<div class="line"> int32_t su = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gaf401728b4657456198c33fe75f8d6720">osKernelUnlock</a>();</div> +<div class="line"> <span class="comment">// ... uncritical code</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae7d0a71b9586cbbb49fcbdf6a04f0289">osKernelRestoreLock</a>(su);</div> +<div class="line">}</div> +<div class="line"><span class="comment">// ... critical code</span></div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae7d0a71b9586cbbb49fcbdf6a04f0289">osKernelRestoreLock</a>(sl);</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="gae7d0a71b9586cbbb49fcbdf6a04f0289"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">int32_t osKernelRestoreLock </td> + <td>(</td> + <td class="paramtype">int32_t </td> + <td class="paramname"><em>lock</em></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramdir">[in]</td><td class="paramname">lock</td><td>lock state obtained by <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga948609ee930d9b38336b9e1c2a4dfe12">osKernelLock</a> or <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gaf401728b4657456198c33fe75f8d6720">osKernelUnlock</a>. </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>new lock state (1 - locked, 0 - not locked, error code if negative).</dd></dl> +<p>The function <b>osKernelRestoreLock</b> restores the previous lock state after <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga948609ee930d9b38336b9e1c2a4dfe12">osKernelLock</a> or <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gaf401728b4657456198c33fe75f8d6720">osKernelUnlock</a>.</p> +<p>The argument <em>lock</em> specifies the lock state as obtained by <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga948609ee930d9b38336b9e1c2a4dfe12">osKernelLock</a> or <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#gaf401728b4657456198c33fe75f8d6720">osKernelUnlock</a>.</p> +<p>The function returns the new value of the lock state (<span class="XML-Token">1</span> if it was locked, <span class="XML-Token">0</span> if it was unlocked), or a negative number representing an error code otherwise (refer to <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a>).</p> +<p>Possible <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> return values:</p> +<ul> +<li><em>osError</em> if an unspecific error occurred.</li> +<li><em>osErrorISR</em> if called from an <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routine</a>.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>This function <b>cannot</b> be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line">int32_t sl = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga948609ee930d9b38336b9e1c2a4dfe12">osKernelLock</a>();</div> +<div class="line"><span class="comment">// ... critical code</span></div> +<div class="line">{</div> +<div class="line"> int32_t su = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gaf401728b4657456198c33fe75f8d6720">osKernelUnlock</a>();</div> +<div class="line"> <span class="comment">// ... uncritical code</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae7d0a71b9586cbbb49fcbdf6a04f0289">osKernelRestoreLock</a>(su);</div> +<div class="line">}</div> +<div class="line"><span class="comment">// ... critical code</span></div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae7d0a71b9586cbbb49fcbdf6a04f0289">osKernelRestoreLock</a>(sl);</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="gae26683e1606ec633354a2876c68f0c1f"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint32_t osKernelSuspend </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>time in ticks, for how long the system can sleep or power-down.</dd></dl> +<p>CMSIS-RTOS provides extension for tick-less operation which is useful for applications that use extensively low-power modes where the SysTick timer is also disabled. To provide a time-tick in such power-saving modes a wake-up timer is used to derive timer intervals. The function <b>osKernelSuspend</b> suspends the RTX kernel scheduler and thus enables sleep modes.</p> +<p>The return value can be used to determine the amount of system ticks until the next tick-based kernel event will occure, i.e. a delayed thread becomed ready again. It is recommended to set up the low power timer to generate a wake-up interrupt based on this return value.</p> +<dl class="section note"><dt>Note</dt><dd>This function <b>cannot</b> be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">void</span> <a class="code" href="group__rtx5__specific__functions.html#ga074068b8efa7074cee68a71481d0b072">osRtxIdleThread</a> (<span class="keywordtype">void</span>) {</div> +<div class="line"> <span class="comment">/* The idle thread is running</span></div> +<div class="line"><span class="comment"> when no other thread is ready</span></div> +<div class="line"><span class="comment"> to run. */</span></div> +<div class="line"> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sleep;</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">for</span> (;;) {</div> +<div class="line"> <span class="comment">/* HERE: include optional user</span></div> +<div class="line"><span class="comment"> code to be executed when no</span></div> +<div class="line"><span class="comment"> task runs. */</span></div> +<div class="line"> sleep = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae26683e1606ec633354a2876c68f0c1f">osKernelSuspend</a>(); <span class="comment">/* Suspend RTX thread scheduler */</span></div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">if</span> (sleep) { <span class="comment">/* How long can we sleep? */</span></div> +<div class="line"> <span class="comment">/* "sleep" is in RTX Timer Ticks</span></div> +<div class="line"><span class="comment"> which is 1ms in this</span></div> +<div class="line"><span class="comment"> configuration */</span></div> +<div class="line"> </div> +<div class="line"> <span class="comment">/* Setup wake-up e.g. watchdog */</span></div> +<div class="line"> </div> +<div class="line"> __WFE(); <span class="comment">/* Enter Power-down mode */</span></div> +<div class="line"> </div> +<div class="line"> <span class="comment">/* After Wake-up */</span></div> +<div class="line"> sleep = tc; <span class="comment">/* Adjust with cycles slept */</span> </div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga8c4b4d7ed34cab73c001665d9176aced">osKernelResume</a>(sleep); <span class="comment">/* Resume thread scheduler */</span></div> +<div class="line"> }</div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga8c4b4d7ed34cab73c001665d9176aced"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">void osKernelResume </td> + <td>(</td> + <td class="paramtype">uint32_t </td> + <td class="paramname"><em>sleep_ticks</em></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramdir">[in]</td><td class="paramname">sleep_ticks</td><td>time in ticks for how long the system was in sleep or power-down mode.</td></tr> + </table> + </dd> +</dl> +<p>CMSIS-RTOS provides extension for tick-less operation which is useful for applications that use extensively low-power modes where the SysTick timer is also disabled. To provide a time-tick in such power-saving modes a wake-up timer is used to derive timer intervals. The function <b>osKernelResume</b> enables the RTX kernel scheduler and thus wakes up the system from sleep mode.</p> +<dl class="section note"><dt>Note</dt><dd>This function <b>cannot</b> be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b>Code Example</b> </p> +<div class="fragment"><div class="line"><span class="keywordtype">void</span> <a class="code" href="group__rtx5__specific__functions.html#ga074068b8efa7074cee68a71481d0b072">osRtxIdleThread</a> (<span class="keywordtype">void</span>) {</div> +<div class="line"> <span class="comment">/* The idle thread is running</span></div> +<div class="line"><span class="comment"> when no other thread is ready</span></div> +<div class="line"><span class="comment"> to run. */</span></div> +<div class="line"> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> sleep;</div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">for</span> (;;) {</div> +<div class="line"> <span class="comment">/* HERE: include optional user</span></div> +<div class="line"><span class="comment"> code to be executed when no</span></div> +<div class="line"><span class="comment"> task runs. */</span></div> +<div class="line"> sleep = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#gae26683e1606ec633354a2876c68f0c1f">osKernelSuspend</a>(); <span class="comment">/* Suspend RTX thread scheduler */</span></div> +<div class="line"> </div> +<div class="line"> <span class="keywordflow">if</span> (sleep) { <span class="comment">/* How long can we sleep? */</span></div> +<div class="line"> <span class="comment">/* "sleep" is in RTX Timer Ticks</span></div> +<div class="line"><span class="comment"> which is 1ms in this</span></div> +<div class="line"><span class="comment"> configuration */</span></div> +<div class="line"> </div> +<div class="line"> <span class="comment">/* Setup wake-up e.g. watchdog */</span></div> +<div class="line"> </div> +<div class="line"> __WFE(); <span class="comment">/* Enter Power-down mode */</span></div> +<div class="line"> </div> +<div class="line"> <span class="comment">/* After Wake-up */</span></div> +<div class="line"> sleep = tc; <span class="comment">/* Adjust with cycles slept */</span> </div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga8c4b4d7ed34cab73c001665d9176aced">osKernelResume</a>(sleep); <span class="comment">/* Resume thread scheduler */</span></div> +<div class="line"> }</div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga84bcdbf2fb76b10c8df4e439f0c7e11b"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint32_t osKernelGetTickCount </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>RTOS kernel current tick count.</dd></dl> +<p>The function <b>osKernelGetTickCount</b> returns the current RTOS kernel tick count.</p> +<dl class="section note"><dt>Note</dt><dd>This function may be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>.</dd></dl> +<p><b>Code</b> <b>Example</b> </p> +<div class="fragment"><div class="line"><span class="preprocessor">#include "<a class="code" href="cmsis__os2_8h.html">cmsis_os2.h</a>"</span></div> +<div class="line"> </div> +<div class="line"><span class="keywordtype">void</span> Thread_1 (<span class="keywordtype">void</span> *arg) { <span class="comment">// Thread function</span></div> +<div class="line"> uint32_t tick;</div> +<div class="line"></div> +<div class="line"> tick = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga84bcdbf2fb76b10c8df4e439f0c7e11b">osKernelGetTickCount</a>(); <span class="comment">// retrieve the number of system ticks</span></div> +<div class="line"> <span class="keywordflow">for</span> (;;) {</div> +<div class="line"> tick += 1000; <span class="comment">// delay 1000 ticks periodically</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__Wait.html#ga3c807924c2d6d43bc2ffb49da3f7f3a1">osDelayUntil</a>(tick);</div> +<div class="line"> <span class="comment">// ...</span></div> +<div class="line"> }</div> +<div class="line">}</div> +</div><!-- fragment --><p>Due to the limited value range used for the tick count it may overflow during runtime, i.e. after 2<sup>32</sup> ticks which are roughly 49days @ 1ms. Typically one has not to take special care of this unless a monotonic counter is needed. For such a case an additional 64bit tick counter can be implemented as follows. The given example needs GetTick() called at least twice per tick overflow to work properly.</p> +<p><b>Code</b> <b>Example</b> </p> +<div class="fragment"><div class="line">uint64_t GetTick(<span class="keywordtype">void</span>) {</div> +<div class="line"> <span class="keyword">static</span> uint32_t tick_h = 0U;</div> +<div class="line"> <span class="keyword">static</span> uint32_t tick_l = 0U;</div> +<div class="line"> uint32_t tick;</div> +<div class="line"></div> +<div class="line"> tick = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga84bcdbf2fb76b10c8df4e439f0c7e11b">osKernelGetTickCount</a>();</div> +<div class="line"> <span class="keywordflow">if</span> (tick < tick_l) {</div> +<div class="line"> tick_h++;</div> +<div class="line"> }</div> +<div class="line"> tick_l = tick;</div> +<div class="line"></div> +<div class="line"> <span class="keywordflow">return</span> (((uint64_t)tick_h << 32) | tick_l);</div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga7a8d7bd927eaaa58999f91d7d6310cee"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint32_t osKernelGetTickFreq </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>frequency of the kernel tick in hertz, i.e. kernel ticks per second.</dd></dl> +<p>The function <b>osKernelGetTickFreq</b> returns the frequency of the current RTOS kernel tick.</p> +<dl class="section note"><dt>Note</dt><dd>This function may be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>. </dd></dl> + +</div> +</div> +<a class="anchor" id="gae0fcaff6cecfb4013bb556c87afcd7d2"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint32_t osKernelGetSysTimerCount </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>RTOS kernel current system timer count as 32-bit value.</dd></dl> +<p>The function <b>osKernelGetSysTimerCount</b> returns the current RTOS kernel system timer as a 32-bit value.</p> +<dl class="section note"><dt>Note</dt><dd>This function may be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>. </dd></dl> + +</div> +</div> +<a class="anchor" id="ga4d69215a93220f72be3684cad582f16a"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">uint32_t osKernelGetSysTimerFreq </td> + <td>(</td> + <td class="paramtype">void </td> + <td class="paramname"></td><td>)</td> + <td></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section return"><dt>Returns</dt><dd>frequency of the system timer in hertz, i.e. timer ticks per second.</dd></dl> +<p>The function <b>osKernelGetSysTimerFreq</b> returns the frequency of the current RTOS kernel system timer.</p> +<dl class="section note"><dt>Note</dt><dd>This function may be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>. </dd></dl> + +</div> +</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 Wed Aug 1 2018 17:12:45 for CMSIS-RTOS2 by Arm Ltd. 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