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author | Ali Labbene <ali.labbene@st.com> | 2019-12-11 08:59:21 +0100 |
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committer | Ali Labbene <ali.labbene@st.com> | 2019-12-16 16:35:24 +0100 |
commit | 9f95ff5b6ba01db09552b84a0ab79607060a2666 (patch) | |
tree | 8a6e0dda832555c692307869aed49d07ee7facfe /Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___kernel_ctrl.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 'Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html')
-rw-r--r-- | Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html | 429 |
1 files changed, 0 insertions, 429 deletions
diff --git a/Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html b/Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html deleted file mode 100644 index 4adc773..0000000 --- a/Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html +++ /dev/null @@ -1,429 +0,0 @@ -<!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-RTOS: 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"> - $(document).ready(initResizable); -</script> -<link href="stylsheetf" rel="stylesheet" type="text/css" /> -</head> -<body> -<div id="top"><!-- do not remove this div, it is closed by doxygen! --> -<div id="titlearea"> -<table cellspacing="0" cellpadding="0"> - <tbody> - <tr style="height: 46px;"> - <td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td> - <td style="padding-left: 0.5em;"> - <div id="projectname">CMSIS-RTOS -  <span id="projectnumber">Version 1.02</span> - </div> - <div id="projectbrief">CMSIS-RTOS API: Generic RTOS interface for Cortex-M processor-based devices.</div> - </td> - </tr> - </tbody> -</table> -</div> -<!-- end header part --> -<div id="CMSISnav" class="tabs1"> - <ul class="tablist"> - <script type="text/javascript"> - <!-- - writeComponentTabs.call(this); - //--> - </script> - </ul> -</div> -<!-- Generated by Doxygen 1.8.2 --> - <div id="navrow1" class="tabs"> - <ul class="tablist"> - <li><a href="index.html"><span>Main Page</span></a></li> - <li><a href="pages.html"><span>Usage and Description</span></a></li> - <li><a href="modules.html"><span>Reference</span></a></li> - </ul> - </div> -</div><!-- top --> -<div id="side-nav" class="ui-resizable side-nav-resizable"> - <div id="nav-tree"> - <div id="nav-tree-contents"> - <div id="nav-sync" class="sync"></div> - </div> - </div> - <div id="splitbar" style="-moz-user-select:none;" - class="ui-resizable-handle"> - </div> -</div> -<script type="text/javascript"> -$(document).ready(function(){initNavTree('group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html','');}); -</script> -<div id="doc-content"> -<div class="header"> - <div class="summary"> -<a href="#define-members">Macros</a> | -<a href="#func-members">Functions</a> </div> - <div class="headertitle"> -<div class="title">Kernel Information and Control</div> </div> -<div class="ingroups"><a class="el" href="group___c_m_s_i_s___r_t_o_s.html">CMSIS-RTOS API</a></div></div><!--header--> -<div class="contents"> - -<p>Provide version/system information and start the RTOS Kernel. -<a href="#details">More...</a></p> -<table class="memberdecls"> -<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a> -Macros</h2></td></tr> -<tr class="memitem:ga22f7d235bc9f783933bd5a981fd79696"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga22f7d235bc9f783933bd5a981fd79696">osFeature_MainThread</a>   1</td></tr> -<tr class="memdesc:ga22f7d235bc9f783933bd5a981fd79696"><td class="mdescLeft"> </td><td class="mdescRight">main thread 1=main can be thread, 0=not available <a href="#ga22f7d235bc9f783933bd5a981fd79696"></a><br/></td></tr> -<tr class="separator:ga22f7d235bc9f783933bd5a981fd79696"><td class="memSeparator" colspan="2"> </td></tr> -<tr class="memitem:gae554ec16c23c5b7d65affade2a351891"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gae554ec16c23c5b7d65affade2a351891">osFeature_SysTick</a>   1</td></tr> -<tr class="memdesc:gae554ec16c23c5b7d65affade2a351891"><td class="mdescLeft"> </td><td class="mdescRight">osKernelSysTick functions: 1=available, 0=not available <a href="#gae554ec16c23c5b7d65affade2a351891"></a><br/></td></tr> -<tr class="separator:gae554ec16c23c5b7d65affade2a351891"><td class="memSeparator" colspan="2"> </td></tr> -<tr class="memitem:ga702196bacccbb978620c736b209387f1"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga702196bacccbb978620c736b209387f1">osCMSIS</a>   0x10002</td></tr> -<tr class="memdesc:ga702196bacccbb978620c736b209387f1"><td class="mdescLeft"> </td><td class="mdescRight">API version (main [31:16] .sub [15:0]) <a href="#ga702196bacccbb978620c736b209387f1"></a><br/></td></tr> -<tr class="separator:ga702196bacccbb978620c736b209387f1"><td class="memSeparator" colspan="2"> </td></tr> -<tr class="memitem:gab78dce646fabec479c5f34bc5175b7de"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gab78dce646fabec479c5f34bc5175b7de">osCMSIS_KERNEL</a>   0x10000</td></tr> -<tr class="memdesc:gab78dce646fabec479c5f34bc5175b7de"><td class="mdescLeft"> </td><td class="mdescRight">RTOS identification and version (main [31:16] .sub [15:0]) <a href="#gab78dce646fabec479c5f34bc5175b7de"></a><br/></td></tr> -<tr class="separator:gab78dce646fabec479c5f34bc5175b7de"><td class="memSeparator" colspan="2"> </td></tr> -<tr class="memitem:ga47cf03658f01cdffca688e9096b58289"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga47cf03658f01cdffca688e9096b58289">osKernelSystemId</a>   "KERNEL V1.00"</td></tr> -<tr class="memdesc:ga47cf03658f01cdffca688e9096b58289"><td class="mdescLeft"> </td><td class="mdescRight">RTOS identification string. <a href="#ga47cf03658f01cdffca688e9096b58289"></a><br/></td></tr> -<tr class="separator:ga47cf03658f01cdffca688e9096b58289"><td class="memSeparator" colspan="2"> </td></tr> -<tr class="memitem:ga9e0954d52722673e2031233a2ab99960"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga9e0954d52722673e2031233a2ab99960">osKernelSysTickFrequency</a>   100000000</td></tr> -<tr class="memdesc:ga9e0954d52722673e2031233a2ab99960"><td class="mdescLeft"> </td><td class="mdescRight">The RTOS kernel system timer frequency in Hz. <a href="#ga9e0954d52722673e2031233a2ab99960"></a><br/></td></tr> -<tr class="separator:ga9e0954d52722673e2031233a2ab99960"><td class="memSeparator" colspan="2"> </td></tr> -<tr class="memitem:gae12c190af42d7310d8006d64f4ed5a88"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gae12c190af42d7310d8006d64f4ed5a88">osKernelSysTickMicroSec</a>(microsec)   (((uint64_t)microsec * (<a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga9e0954d52722673e2031233a2ab99960">osKernelSysTickFrequency</a>)) / 1000000)</td></tr> -<tr class="memdesc:gae12c190af42d7310d8006d64f4ed5a88"><td class="mdescLeft"> </td><td class="mdescRight">Convert a microseconds value to a RTOS kernel system timer value. <a href="#gae12c190af42d7310d8006d64f4ed5a88"></a><br/></td></tr> -<tr class="separator:gae12c190af42d7310d8006d64f4ed5a88"><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:ga53d078a801022e202e8115c083ece68e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___c_m_s_i_s___r_t_o_s___status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga53d078a801022e202e8115c083ece68e">osKernelInitialize</a> (void)</td></tr> -<tr class="memdesc:ga53d078a801022e202e8115c083ece68e"><td class="mdescLeft"> </td><td class="mdescRight">Initialize the RTOS Kernel for creating objects. <a href="#ga53d078a801022e202e8115c083ece68e"></a><br/></td></tr> -<tr class="separator:ga53d078a801022e202e8115c083ece68e"><td class="memSeparator" colspan="2"> </td></tr> -<tr class="memitem:gaab668ffd2ea76bb0a77ab0ab385eaef2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___c_m_s_i_s___r_t_o_s___status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gaab668ffd2ea76bb0a77ab0ab385eaef2">osKernelStart</a> (void)</td></tr> -<tr class="memdesc:gaab668ffd2ea76bb0a77ab0ab385eaef2"><td class="mdescLeft"> </td><td class="mdescRight">Start the RTOS Kernel. <a href="#gaab668ffd2ea76bb0a77ab0ab385eaef2"></a><br/></td></tr> -<tr class="separator:gaab668ffd2ea76bb0a77ab0ab385eaef2"><td class="memSeparator" colspan="2"> </td></tr> -<tr class="memitem:ga3b571de44cd3094c643247a7397f86b5"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga3b571de44cd3094c643247a7397f86b5">osKernelRunning</a> (void)</td></tr> -<tr class="memdesc:ga3b571de44cd3094c643247a7397f86b5"><td class="mdescLeft"> </td><td class="mdescRight">Check if the RTOS kernel is already started. <a href="#ga3b571de44cd3094c643247a7397f86b5"></a><br/></td></tr> -<tr class="separator:ga3b571de44cd3094c643247a7397f86b5"><td class="memSeparator" colspan="2"> </td></tr> -<tr class="memitem:gad0262e4688e95d1e9038afd9bcc16001"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gad0262e4688e95d1e9038afd9bcc16001">osKernelSysTick</a> (void)</td></tr> -<tr class="memdesc:gad0262e4688e95d1e9038afd9bcc16001"><td class="mdescLeft"> </td><td class="mdescRight">Get the RTOS kernel system timer counter. <a href="#gad0262e4688e95d1e9038afd9bcc16001"></a><br/></td></tr> -<tr class="separator:gad0262e4688e95d1e9038afd9bcc16001"><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> -<p>The function <b>main</b> is a special thread function that may be started at system initialization. In this case it has the initial priority <em>osPriorityNormal</em>.</p> -<p>When reaching <b>main</b>, it is necessary to:</p> -<ol type="1"> -<li>Call <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga53d078a801022e202e8115c083ece68e" title="Initialize the RTOS Kernel for creating objects.">osKernelInitialize()</a> to initialize the CMSIS-RTOS Kernel</li> -<li>Setup device peripherals and create other RTOS objects using the <b>os*Create</b> functions.</li> -<li>Start the Kernel and begin thread switching by calling <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gaab668ffd2ea76bb0a77ab0ab385eaef2" title="Start the RTOS Kernel.">osKernelStart()</a>.</li> -</ol> -<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"> <a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga53d078a801022e202e8115c083ece68e" title="Initialize the RTOS Kernel for creating objects.">osKernelInitialize</a> (); <span class="comment">// initialize CMSIS-RTOS</span></div> -<div class="line"> </div> -<div class="line"> <span class="comment">// initialize peripherals here</span></div> -<div class="line"> </div> -<div class="line"> <span class="comment">// create 'thread' functions that start executing,</span></div> -<div class="line"> <span class="comment">// example: tid_name = osThreadCreate (osThread(name), NULL);</span></div> -<div class="line"> </div> -<div class="line"> <a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gaab668ffd2ea76bb0a77ab0ab385eaef2" title="Start the RTOS Kernel.">osKernelStart</a> (); <span class="comment">// start thread execution </span></div> -<div class="line">}</div> -</div><!-- fragment --> <h2 class="groupheader">Macro Definition Documentation</h2> -<a class="anchor" id="ga702196bacccbb978620c736b209387f1"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname">#define osCMSIS   0x10002</td> - </tr> - </table> -</div><div class="memdoc"> -<p>Version information of the CMSIS-RTOS API whereby major version is in bits [31:16] and sub version in bits [15:0]. The value 0x10000 represents version 1.00.</p> -<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osCMSIS</b> identifies the CMSIS-RTOS API version. </dd></dl> - -</div> -</div> -<a class="anchor" id="gab78dce646fabec479c5f34bc5175b7de"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname">#define osCMSIS_KERNEL   0x10000</td> - </tr> - </table> -</div><div class="memdoc"> -<p>Identifies the underlying RTOS kernel and version number. The actual name of that define depends on the RTOS Kernel used in the implementation. For example, <b>osCMSIS_FreeRTOS</b> identifies the FreeRTOS kernel and the value indicates the version number of that kernel whereby the major version is in bits [31:16] and sub version in bits [15:0]. The value 0x10000 represents version 1.00.</p> -<dl class="section note"><dt>Note</dt><dd>CAN BE CHANGED: <b>osCMSIS_KERNEL</b> identifies the underlying RTOS kernel and version number. </dd></dl> - -</div> -</div> -<a class="anchor" id="ga22f7d235bc9f783933bd5a981fd79696"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname">#define osFeature_MainThread   1</td> - </tr> - </table> -</div><div class="memdoc"> -<p>A CMSIS-RTOS implementation may support to start thread execution with the function 'main'.</p> -<ul> -<li>When <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga22f7d235bc9f783933bd5a981fd79696">osFeature_MainThread</a> is 1 the RTOS offers to start with 'main'. The RTOS kernel is in this case already started.</li> -<li>When <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga22f7d235bc9f783933bd5a981fd79696">osFeature_MainThread</a> is 0 the RTOS requires explicit start with <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gaab668ffd2ea76bb0a77ab0ab385eaef2">osKernelStart</a>.</li> -</ul> -<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osFeature_xxx</b> shall be consistent in every CMSIS-RTOS. </dd></dl> - -</div> -</div> -<a class="anchor" id="gae554ec16c23c5b7d65affade2a351891"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname">#define osFeature_SysTick   1</td> - </tr> - </table> -</div><div class="memdoc"> -<p>A CMSIS-RTOS implementation may provide access to the RTOS kernel system timer.</p> -<ul> -<li>When <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gae554ec16c23c5b7d65affade2a351891">osFeature_SysTick</a> is 1 access to the RTOS kernel system timer is provided with <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gad0262e4688e95d1e9038afd9bcc16001">osKernelSysTick</a>, <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga9e0954d52722673e2031233a2ab99960">osKernelSysTickFrequency</a>, and <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gae12c190af42d7310d8006d64f4ed5a88">osKernelSysTickMicroSec</a>.</li> -<li>When <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gae554ec16c23c5b7d65affade2a351891">osFeature_SysTick</a> is 0 access to the RTOS kernel system timer is not implemented. </li> -</ul> - -</div> -</div> -<a class="anchor" id="ga47cf03658f01cdffca688e9096b58289"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname">#define osKernelSystemId   "KERNEL V1.00"</td> - </tr> - </table> -</div><div class="memdoc"> -<p>Defines a string that identifies the underlying RTOS Kernel and provides version information. The length of that string is limited to 21 bytes. A valid identification string is for example, <b>"FreeRTOS V1.00"</b>.</p> -<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osKernelSystemId</b> shall be consistent in every CMSIS-RTOS. </dd></dl> - -</div> -</div> -<a class="anchor" id="ga9e0954d52722673e2031233a2ab99960"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname">#define osKernelSysTickFrequency   100000000</td> - </tr> - </table> -</div><div class="memdoc"> -<p>Specifies the frequency of the Kernel SysTick timer in Hz. The value is typically use to scale a time value and is for example used in <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gae12c190af42d7310d8006d64f4ed5a88">osKernelSysTickMicroSec</a>.</p> -<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gad0262e4688e95d1e9038afd9bcc16001" title="Get the RTOS kernel system timer counter.">osKernelSysTick</a></dd></dl> -<dl class="section note"><dt>Note</dt><dd>Reflects the system timer setting and is typically defined in a configuration file. </dd></dl> - -</div> -</div> -<a class="anchor" id="gae12c190af42d7310d8006d64f4ed5a88"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname">#define osKernelSysTickMicroSec</td> - <td>(</td> - <td class="paramtype"> </td> - <td class="paramname">microsec</td><td>)</td> - <td>   (((uint64_t)microsec * (<a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga9e0954d52722673e2031233a2ab99960">osKernelSysTickFrequency</a>)) / 1000000)</td> - </tr> - </table> -</div><div class="memdoc"> -<p>Allows you to scale a microsecond value to the frequency of the Kernel SysTick timer. This macro is typically used to check for short timeouts in polling loops.</p> -<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gad0262e4688e95d1e9038afd9bcc16001" title="Get the RTOS kernel system timer counter.">osKernelSysTick</a></dd></dl> -<dl class="params"><dt>Parameters</dt><dd> - <table class="params"> - <tr><td class="paramname">microsec</td><td>time value in microseconds. </td></tr> - </table> - </dd> -</dl> -<dl class="section return"><dt>Returns</dt><dd>time value normalized to the <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga9e0954d52722673e2031233a2ab99960">osKernelSysTickFrequency</a> </dd></dl> - -</div> -</div> -<h2 class="groupheader">Function Documentation</h2> -<a class="anchor" id="ga53d078a801022e202e8115c083ece68e"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname"><a class="el" href="group___c_m_s_i_s___r_t_o_s___status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</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> -<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osKernelInitialize</b> shall be consistent in every CMSIS-RTOS.</dd></dl> -<p>Initialize of the RTOS Kernel to allow peripheral setup and creation of other RTOS objects with the functions:</p> -<ul> -<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___thread_mgmt.html#gac59b5713cb083702dce759c73fd90dff">osThreadCreate</a> : Create a thread function.</li> -<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___timer_mgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a> : Define attributes of the timer callback function.</li> -<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___mutex_mgmt.html#ga5c9de56e717016e39e788064e9a291cc">osMutexCreate</a> : Define and initialize a mutex.</li> -<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___semaphore_mgmt.html#ga97381e8e55cd47cec390bf57c96d6edb">osSemaphoreCreate</a> : Define and initialize a semaphore.</li> -<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___pool_mgmt.html#ga34af5c4f4ab38f4138ea7f1f9ece3a1a">osPoolCreate</a> : Define and initialize a fix-size memory pool.</li> -<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___message.html#gaf3b9345cf426304d46565152bc26fb78">osMessageCreate</a> : Define and initialize a message queue.</li> -<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___mail.html#gaa177e7fe5820dd70d8c9e46ded131174">osMailCreate</a> : Define and initialize a mail queue with fix-size memory blocks.</li> -</ul> -<p>The RTOS kernel does not start thread switching until the function <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gaab668ffd2ea76bb0a77ab0ab385eaef2">osKernelStart</a> is called.</p> -<dl class="section note"><dt>Note</dt><dd>In case that the RTOS Kernel starts thread execution with the function <em>main</em> the function osKernelInitialize stops thread switching. This allows you to setup the system to a defined state before thread switching is resumed with <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gaab668ffd2ea76bb0a77ab0ab385eaef2">osKernelStart</a>.</dd></dl> -<p><b>Code Example</b> </p> -<div class="fragment"><div class="line"><span class="preprocessor">#include "<a class="code" href="cmsis__os_8h.html">cmsis_os.h</a>"</span></div> -<div class="line"> </div> -<div class="line"><span class="keywordtype">int</span> main (<span class="keywordtype">void</span>) {</div> -<div class="line"> <span class="keywordflow">if</span> (!<a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga3b571de44cd3094c643247a7397f86b5" title="Check if the RTOS kernel is already started.">osKernelRunning</a> ()) { <span class="comment">// if kernel is not running, initialize the kernel</span></div> -<div class="line"> <span class="keywordflow">if</span> (<a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga53d078a801022e202e8115c083ece68e" title="Initialize the RTOS Kernel for creating objects.">osKernelInitialize</a> () != <a class="code" href="group___c_m_s_i_s___r_t_o_s___status.html#gae2e091fefc4c767117727bd5aba4d99ea9e1c9e2550bb4de8969a935acffc968f" title="function completed; no error or event occurred.">osOK</a>) { <span class="comment">// check osStatus for other possible valid values</span></div> -<div class="line"> <span class="comment">// exit with an error message</span></div> -<div class="line"> }</div> -<div class="line"> }</div> -<div class="line"> :</div> -<div class="line">}</div> -</div><!-- fragment --> -</div> -</div> -<a class="anchor" id="ga3b571de44cd3094c643247a7397f86b5"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname">int32_t osKernelRunning </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 note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osKernelRunning</b> shall be consistent in every CMSIS-RTOS. </dd></dl> -<dl class="section return"><dt>Returns</dt><dd>0 RTOS is not started, 1 RTOS is started.</dd></dl> -<p>Identifies if the RTOS kernel is started. For systems with the option to start the <em>main</em> function as a thread this allows you to identify that the RTOS kernel is already running.</p> -<dl class="section note"><dt>Note</dt><dd><a class="el" href="_function_overview.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a> can call this function.</dd></dl> -<p><b>Code Example</b> </p> -<div class="fragment"><div class="line"><span class="preprocessor">#include "<a class="code" href="cmsis__os_8h.html">cmsis_os.h</a>"</span></div> -<div class="line"> </div> -<div class="line"><span class="keywordtype">int</span> main (<span class="keywordtype">void</span>) { <span class="comment">// program execution starts here</span></div> -<div class="line"> <span class="keywordflow">if</span> (<a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga3b571de44cd3094c643247a7397f86b5" title="Check if the RTOS kernel is already started.">osKernelRunning</a> ()) { </div> -<div class="line"> : <span class="comment">// main is already a thread function</span></div> -<div class="line"> }</div> -<div class="line">}</div> -</div><!-- fragment --> -</div> -</div> -<a class="anchor" id="gaab668ffd2ea76bb0a77ab0ab385eaef2"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname"><a class="el" href="group___c_m_s_i_s___r_t_o_s___status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</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> -<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osKernelStart</b> shall be consistent in every CMSIS-RTOS.</dd></dl> -<p>Start the RTOS Kernel and begin thread switching.</p> -<dl class="section note"><dt>Note</dt><dd>When the CMSIS-RTOS starts thread execution with the function <em>main</em> this function resumes thread switching. The <em>main</em> thread will continue executing after <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gaab668ffd2ea76bb0a77ab0ab385eaef2">osKernelStart</a>.</dd></dl> -<p><b><a class="el" href="group___c_m_s_i_s___r_t_o_s___status.html">Status and Error Codes</a></b><br/> -</p> -<ul> -<li><em>osOK:</em> the RTOS kernel has been successfully started.</li> -<li><em>osErrorISR:</em> <a class="el" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gaab668ffd2ea76bb0a77ab0ab385eaef2">osKernelStart</a> cannot be called from interrupt service routines.</li> -</ul> -<dl class="section note"><dt>Note</dt><dd>Cannot be called from <a class="el" href="_function_overview.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 "<a class="code" href="cmsis__os_8h.html">cmsis_os.h</a>"</span></div> -<div class="line"> </div> -<div class="line"><span class="keywordtype">int</span> main (<span class="keywordtype">void</span>) {</div> -<div class="line"> <span class="keywordflow">if</span> (<a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga53d078a801022e202e8115c083ece68e" title="Initialize the RTOS Kernel for creating objects.">osKernelInitialize</a> () != <a class="code" href="group___c_m_s_i_s___r_t_o_s___status.html#gae2e091fefc4c767117727bd5aba4d99ea9e1c9e2550bb4de8969a935acffc968f" title="function completed; no error or event occurred.">osOK</a>) { <span class="comment">// check osStatus for other possible valid values</span></div> -<div class="line"> <span class="comment">// exit with an error message</span></div> -<div class="line"> }</div> -<div class="line"> </div> -<div class="line"> <span class="keywordflow">if</span> (!<a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#ga3b571de44cd3094c643247a7397f86b5" title="Check if the RTOS kernel is already started.">osKernelRunning</a> ()) { <span class="comment">// is the kernel running ?</span></div> -<div class="line"> <span class="keywordflow">if</span> (<a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gaab668ffd2ea76bb0a77ab0ab385eaef2" title="Start the RTOS Kernel.">osKernelStart</a> () != <a class="code" href="group___c_m_s_i_s___r_t_o_s___status.html#gae2e091fefc4c767117727bd5aba4d99ea9e1c9e2550bb4de8969a935acffc968f" title="function completed; no error or event occurred.">osOK</a>) { <span class="comment">// start the kernel</span></div> -<div class="line"> <span class="comment">// kernel could not be started</span></div> -<div class="line"> }</div> -<div class="line"> }</div> -<div class="line">}</div> -</div><!-- fragment --> -</div> -</div> -<a class="anchor" id="gad0262e4688e95d1e9038afd9bcc16001"></a> -<div class="memitem"> -<div class="memproto"> - <table class="memname"> - <tr> - <td class="memname">uint32_t osKernelSysTick </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 note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osKernelSysTick</b> shall be consistent in every CMSIS-RTOS. </dd></dl> -<dl class="section return"><dt>Returns</dt><dd>RTOS kernel system timer as 32-bit value</dd></dl> -<p>Get the value of the Kernel SysTick timer for time comparison. The value is a rolling 32-bit counter that is typically composed of the kernel system interrupt timer value and an counter that counts these interrupts.</p> -<p>This function allows the implementation of timeout checks. These are for example required when checking for a busy status in a device or peripheral initialization routine.</p> -<dl class="section note"><dt>Note</dt><dd>Cannot be called from <a class="el" href="_function_overview.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 "<a class="code" href="cmsis__os_8h.html">cmsis_os.h</a>"</span></div> -<div class="line"></div> -<div class="line"><span class="keywordtype">void</span> SetupDevice (<span class="keywordtype">void</span>) {</div> -<div class="line"> uint32_t tick;</div> -<div class="line"> </div> -<div class="line"> tick = <a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gad0262e4688e95d1e9038afd9bcc16001" title="Get the RTOS kernel system timer counter.">osKernelSysTick</a>(); <span class="comment">// get start value of the Kernel system tick</span></div> -<div class="line"> Device.Setup (); <span class="comment">// initialize a device or peripheral</span></div> -<div class="line"> <span class="keywordflow">do</span> { <span class="comment">// poll device busy status for 100 microseconds</span></div> -<div class="line"> <span class="keywordflow">if</span> (!Device.Busy) <span class="keywordflow">break</span>; <span class="comment">// check if device is correctly initialized</span></div> -<div class="line"> } <span class="keywordflow">while</span> ((<a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gad0262e4688e95d1e9038afd9bcc16001" title="Get the RTOS kernel system timer counter.">osKernelSysTick</a>() - tick) < <a class="code" href="group___c_m_s_i_s___r_t_o_s___kernel_ctrl.html#gae12c190af42d7310d8006d64f4ed5a88" title="Convert a microseconds value to a RTOS kernel system timer value.">osKernelSysTickMicroSec</a>(100)); </div> -<div class="line"> <span class="keywordflow">if</span> (Device.Busy) { </div> -<div class="line"> ; <span class="comment">// in case device still busy, signal error</span></div> -<div class="line"> }</div> -<div class="line"> <span class="comment">// start interacting with device</span></div> -<div class="line">}</div> -</div><!-- fragment --> -</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 Tue Oct 27 2015 14:35:43 for CMSIS-RTOS by ARM Ltd. All rights reserved. - <!-- - <a href="http://www.doxygen.org/index.html"> - <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.2 - --> - </li> - </ul> -</div> -</body> -</html> |