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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/RTOS/html/group__CMSIS__RTOS__TimerMgmt.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/RTOS/html/group__CMSIS__RTOS__TimerMgmt.html')
| -rw-r--r-- | docs/RTOS/html/group__CMSIS__RTOS__TimerMgmt.html | 534 |
1 files changed, 534 insertions, 0 deletions
diff --git a/docs/RTOS/html/group__CMSIS__RTOS__TimerMgmt.html b/docs/RTOS/html/group__CMSIS__RTOS__TimerMgmt.html new file mode 100644 index 0000000..944b5b6 --- /dev/null +++ b/docs/RTOS/html/group__CMSIS__RTOS__TimerMgmt.html @@ -0,0 +1,534 @@ +<!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>Timer Management</title> +<title>CMSIS-RTOS: Timer Management</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-RTOS +  <span id="projectnumber">Version 1.03</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__TimerMgmt.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="#define-members">Macros</a> | +<a href="#enum-members">Enumerations</a> | +<a href="#func-members">Functions</a> </div> + <div class="headertitle"> +<div class="title">Timer Management<div class="ingroups"><a class="el" href="group__CMSIS__RTOS.html">CMSIS-RTOS API</a></div></div> </div> +</div><!--header--> +<div class="contents"> + +<p>Create and control timer and timer callback functions. +<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:ga1c720627e08d1cc1afcad44e799ed492"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga1c720627e08d1cc1afcad44e799ed492">osTimerDef</a>(name, function)</td></tr> +<tr class="memdesc:ga1c720627e08d1cc1afcad44e799ed492"><td class="mdescLeft"> </td><td class="mdescRight">Define a Timer object. <a href="#ga1c720627e08d1cc1afcad44e799ed492">More...</a><br/></td></tr> +<tr class="separator:ga1c720627e08d1cc1afcad44e799ed492"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga1b8d670eaf964b2910fa06885e650678"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga1b8d670eaf964b2910fa06885e650678">osTimer</a>(name)   &os_timer_def_##name</td></tr> +<tr class="memdesc:ga1b8d670eaf964b2910fa06885e650678"><td class="mdescLeft"> </td><td class="mdescRight">Access a Timer definition. <a href="#ga1b8d670eaf964b2910fa06885e650678">More...</a><br/></td></tr> +<tr class="separator:ga1b8d670eaf964b2910fa06885e650678"><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:gadac860eb9e1b4b0619271e6595ed83d9"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9">os_timer_type</a> { <br/> +  <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9ad21712f8df5f97069c82dc9eec37b951">osTimerOnce</a> = 0, +<br/> +  <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9ab9c91f9699162edb09bb7c90c11c8788">osTimerPeriodic</a> = 1 +<br/> + }</td></tr> +<tr class="separator:gadac860eb9e1b4b0619271e6595ed83d9"><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:gaedd312bfdca04e0b8162b666e09a1ae6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a> (const <a class="el" href="cmsis__os_8h.html#structosTimerDef__t">osTimerDef_t</a> *timer_def, <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9">os_timer_type</a> type, void *argument)</td></tr> +<tr class="memdesc:gaedd312bfdca04e0b8162b666e09a1ae6"><td class="mdescLeft"> </td><td class="mdescRight">Create a timer. <a href="#gaedd312bfdca04e0b8162b666e09a1ae6">More...</a><br/></td></tr> +<tr class="separator:gaedd312bfdca04e0b8162b666e09a1ae6"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga27a797a401b068e2644d1125f22a07ca"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">osTimerStart</a> (<a class="el" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> timer_id, uint32_t millisec)</td></tr> +<tr class="memdesc:ga27a797a401b068e2644d1125f22a07ca"><td class="mdescLeft"> </td><td class="mdescRight">Start or restart a timer. <a href="#ga27a797a401b068e2644d1125f22a07ca">More...</a><br/></td></tr> +<tr class="separator:ga27a797a401b068e2644d1125f22a07ca"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga58f36b121a812936435cacc6e1e0e091"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga58f36b121a812936435cacc6e1e0e091">osTimerStop</a> (<a class="el" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> timer_id)</td></tr> +<tr class="memdesc:ga58f36b121a812936435cacc6e1e0e091"><td class="mdescLeft"> </td><td class="mdescRight">Stop the timer. <a href="#ga58f36b121a812936435cacc6e1e0e091">More...</a><br/></td></tr> +<tr class="separator:ga58f36b121a812936435cacc6e1e0e091"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga746b8043d906849bd65e3900fcb483cf"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga746b8043d906849bd65e3900fcb483cf">osTimerDelete</a> (<a class="el" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> timer_id)</td></tr> +<tr class="memdesc:ga746b8043d906849bd65e3900fcb483cf"><td class="mdescLeft"> </td><td class="mdescRight">Delete a timer that was created by <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a>. <a href="#ga746b8043d906849bd65e3900fcb483cf">More...</a><br/></td></tr> +<tr class="separator:ga746b8043d906849bd65e3900fcb483cf"><td class="memSeparator" colspan="2"> </td></tr> +</table> +<a name="details" id="details"></a><h2 class="groupheader">Description</h2> +<p>In addition to the <a class="el" href="group__CMSIS__RTOS__Wait.html">Generic Wait Functions</a> CMSIS-RTOS also supports virtual timer objects. These timer objects can trigger the execution of a function (not threads). When a timer expires, a callback function is executed to run associated code with the timer. The timer number is passed as a parameter to the callback function. Each timer can be configured as a one-shot or a periodic timer. A periodic timer repeats its operation until it is <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga746b8043d906849bd65e3900fcb483cf">deleted</a> or <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga58f36b121a812936435cacc6e1e0e091">stopped</a>. All timers can be <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">started, restarted</a>, or <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga58f36b121a812936435cacc6e1e0e091">stopped</a>.</p> +<p>Timers are handled in the thread <b>osTimerThread</b>. Callback functions run under control of this thread and may use other CMSIS-RTOS API calls.</p> +<p>The figure below shows the behavior of a periodic timer. For one-shot timers, the timer stops after execution of the callback function.</p> +<div class="image"> +<img src="Timer.png" alt="Timer.png"/> +<div class="caption"> +Behavior of a Periodic Timer</div></div> + <h2>Working with Timers </h2> +<p>The following steps are required to use a timer:</p> +<ol type="1"> +<li>Define the timers: <div class="fragment"><div class="line"><a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1c720627e08d1cc1afcad44e799ed492">osTimerDef</a>(one_shot, start_machine); <span class="comment">// when the timer expires, the function start_machine is called</span></div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1c720627e08d1cc1afcad44e799ed492">osTimerDef</a>(periodic, toggle_power); <span class="comment">// when the timer expires, the function toggle_power is called</span></div> +<div class="line"><a class="code" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> one_shot_id, periodic_id;</div> +</div><!-- fragment --></li> +<li>Instantiate and start the timers in an RTOS thread: <div class="fragment"><div class="line">one_shot_id = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a>(<a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1b8d670eaf964b2910fa06885e650678">osTimer</a>(one_shot), <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9ad21712f8df5f97069c82dc9eec37b951">osTimerOnce</a>, (<span class="keywordtype">void</span> *)0); <span class="comment">// creates a one-shot timer;</span></div> +<div class="line"> <span class="comment">// (void*)0 is passed as an argument to the callback function</span></div> +<div class="line">periodic_id = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a>(<a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1b8d670eaf964b2910fa06885e650678">osTimer</a>(periodic), <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9ab9c91f9699162edb09bb7c90c11c8788">osTimerPeriodic</a>, (<span class="keywordtype">void</span> *)5); <span class="comment">// creates a periodic timer;</span></div> +<div class="line"> <span class="comment">// (void*)5 is passed as an argument to the callback function</span></div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">osTimerStart</a>(one_shot_id, 500);</div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">osTimerStart</a>(periodic, 1500);</div> +</div><!-- fragment --> </li> +</ol> +<h2 class="groupheader">Macro Definition Documentation</h2> +<a class="anchor" id="ga1b8d670eaf964b2910fa06885e650678"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">#define osTimer</td> + <td>(</td> + <td class="paramtype"> </td> + <td class="paramname">name</td><td>)</td> + <td>   &os_timer_def_##name</td> + </tr> + </table> +</div><div class="memdoc"> +<p>Access to the timer definition for the function <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a>.</p> +<dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramname">name</td><td>name of the timer object. </td></tr> + </table> + </dd> +</dl> +<dl class="section note"><dt>Note</dt><dd>CAN BE CHANGED: The parameter to <b>osTimer</b> shall be consistent but the macro body is implementation specific in every CMSIS-RTOS. </dd></dl> + +</div> +</div> +<a class="anchor" id="ga1c720627e08d1cc1afcad44e799ed492"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">#define osTimerDef</td> + <td>(</td> + <td class="paramtype"> </td> + <td class="paramname">name, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype"> </td> + <td class="paramname">function </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> +<p>Define the attributes of a timer.</p> +<dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramname">name</td><td>name of the timer object. </td></tr> + <tr><td class="paramname">function</td><td>name of the timer call back function. </td></tr> + </table> + </dd> +</dl> +<dl class="section note"><dt>Note</dt><dd>CAN BE CHANGED: The parameter to <b>osTimerDef</b> shall be consistent but the macro body is implementation specific in every CMSIS-RTOS. </dd></dl> + +</div> +</div> +<h2 class="groupheader">Enumeration Type Documentation</h2> +<a class="anchor" id="gadac860eb9e1b4b0619271e6595ed83d9"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">enum <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9">os_timer_type</a></td> + </tr> + </table> +</div><div class="memdoc"> +<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>os_timer_type</b> shall be consistent in every CMSIS-RTOS. The <a class="el" href="cmsis__os_8h.html#adac860eb9e1b4b0619271e6595ed83d9">os_timer_type</a> specifies the a repeating (periodic) or one-shot timer for the function <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a>. </dd></dl> +<table class="fieldtable"> +<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="gadac860eb9e1b4b0619271e6595ed83d9ad21712f8df5f97069c82dc9eec37b951"></a>osTimerOnce</em> </td><td class="fielddoc"> +<p>one-shot timer </p> +</td></tr> +<tr><td class="fieldname"><em><a class="anchor" id="gadac860eb9e1b4b0619271e6595ed83d9ab9c91f9699162edb09bb7c90c11c8788"></a>osTimerPeriodic</em> </td><td class="fielddoc"> +<p>repeating timer </p> +</td></tr> +</table> + +</div> +</div> +<h2 class="groupheader">Function Documentation</h2> +<a class="anchor" id="gaedd312bfdca04e0b8162b666e09a1ae6"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> osTimerCreate </td> + <td>(</td> + <td class="paramtype">const <a class="el" href="cmsis__os_8h.html#structosTimerDef__t">osTimerDef_t</a> * </td> + <td class="paramname"><em>timer_def</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype"><a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9">os_timer_type</a> </td> + <td class="paramname"><em>type</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">void * </td> + <td class="paramname"><em>argument</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">[in]</td><td class="paramname">timer_def</td><td>timer object referenced with <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga1b8d670eaf964b2910fa06885e650678">osTimer</a>. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">type</td><td>osTimerOnce for one-shot or osTimerPeriodic for periodic behavior. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">argument</td><td>argument to the timer call back function. </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>timer ID for reference by other functions or NULL in case of error. </dd></dl> +<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osTimerCreate</b> shall be consistent in every CMSIS-RTOS.</dd></dl> +<p>Create a one-shot or periodic timer and associate it with a callback function argument. The timer is in stopped until it is started with <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">osTimerStart</a>.</p> +<dl class="section note"><dt>Note</dt><dd>Cannot be called from <a class="el" href="functionOverview.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> Timer1_Callback (<span class="keywordtype">void</span> <span class="keyword">const</span> *arg); <span class="comment">// prototypes for timer callback function</span></div> +<div class="line"><span class="keywordtype">void</span> Timer2_Callback (<span class="keywordtype">void</span> <span class="keyword">const</span> *arg); </div> +<div class="line"> </div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1c720627e08d1cc1afcad44e799ed492">osTimerDef</a> (Timer1, Timer1_Callback); <span class="comment">// define timers</span></div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1c720627e08d1cc1afcad44e799ed492">osTimerDef</a> (Timer2, Timer2_Callback);</div> +<div class="line"> </div> +<div class="line">uint32_t exec1; <span class="comment">// argument for the timer call back function</span></div> +<div class="line">uint32_t exec2; <span class="comment">// argument for the timer call back function</span></div> +<div class="line"> </div> +<div class="line"><span class="keywordtype">void</span> TimerCreate_example (<span class="keywordtype">void</span>) {</div> +<div class="line"> <a class="code" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> id1; <span class="comment">// timer id</span></div> +<div class="line"> <a class="code" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> id2; <span class="comment">// timer id</span></div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Create one-shoot timer</span></div> +<div class="line"> exec1 = 1;</div> +<div class="line"> id1 = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a> (<a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1b8d670eaf964b2910fa06885e650678">osTimer</a>(Timer1), <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9ad21712f8df5f97069c82dc9eec37b951">osTimerOnce</a>, &exec1);</div> +<div class="line"> <span class="keywordflow">if</span> (id1 != NULL) {</div> +<div class="line"> <span class="comment">// One-shoot timer created</span></div> +<div class="line"> }</div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Create periodic timer</span></div> +<div class="line"> exec2 = 2;</div> +<div class="line"> id2 = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a> (<a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1b8d670eaf964b2910fa06885e650678">osTimer</a>(Timer2), <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9ab9c91f9699162edb09bb7c90c11c8788">osTimerPeriodic</a>, &exec2);</div> +<div class="line"> <span class="keywordflow">if</span> (id2 != NULL) {</div> +<div class="line"> <span class="comment">// Periodic timer created</span></div> +<div class="line"> }</div> +<div class="line"> :</div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga746b8043d906849bd65e3900fcb483cf"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> osTimerDelete </td> + <td>(</td> + <td class="paramtype"><a class="el" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> </td> + <td class="paramname"><em>timer_id</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">timer_id</td><td>timer ID obtained by <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a>. </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> +<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osTimerDelete</b> shall be consistent in every CMSIS-RTOS.</dd></dl> +<p>Delete the timer object.</p> +<p><b><a class="el" href="group__CMSIS__RTOS__Status.html">Status and Error Codes</a></b><br/> +</p> +<ul> +<li><em>osOK:</em> the specified timer has been deleted.</li> +<li><em>osErrorISR:</em> <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga746b8043d906849bd65e3900fcb483cf">osTimerDelete</a> cannot be called from interrupt service routines.</li> +<li><em>osErrorParameter:</em> <em>timer_id</em> is incorrect.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>Cannot be called from <a class="el" href="functionOverview.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> Timer_Callback (<span class="keywordtype">void</span> <span class="keyword">const</span> *arg); <span class="comment">// prototype for timer callback function</span></div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1c720627e08d1cc1afcad44e799ed492">osTimerDef</a> (Timer, Timer_Callback); <span class="comment">// define timer</span></div> +<div class="line"> </div> +<div class="line"><span class="keywordtype">void</span> TimerDelete_example (<span class="keywordtype">void</span>) {</div> +<div class="line"> <a class="code" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> id; <span class="comment">// timer id</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> status; <span class="comment">// function return status </span></div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Create periodic timer</span></div> +<div class="line"> exec = 1;</div> +<div class="line"> <span class="keywordtype">id</span> = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a> (<a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1b8d670eaf964b2910fa06885e650678">osTimer</a>(Timer2), <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9ab9c91f9699162edb09bb7c90c11c8788">osTimerPeriodic</a>, NULL);</div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">osTimerStart</a> (<span class="keywordtype">id</span>, 1000UL); <span class="comment">// start timer</span></div> +<div class="line"> :</div> +<div class="line"> status = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga746b8043d906849bd65e3900fcb483cf">osTimerDelete</a> (<span class="keywordtype">id</span>); <span class="comment">// stop and delete timer</span></div> +<div class="line"> <span class="keywordflow">if</span> (status != <a class="code" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99ea9e1c9e2550bb4de8969a935acffc968f">osOK</a>) {</div> +<div class="line"> <span class="comment">// Timer could not be deleted</span></div> +<div class="line"> } </div> +<div class="line"> :</div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga27a797a401b068e2644d1125f22a07ca"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> osTimerStart </td> + <td>(</td> + <td class="paramtype"><a class="el" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> </td> + <td class="paramname"><em>timer_id</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint32_t </td> + <td class="paramname"><em>millisec</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">[in]</td><td class="paramname">timer_id</td><td>timer ID obtained by <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a>. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">millisec</td><td><a class="el" href="functionOverview.html#CMSIS_RTOS_TimeOutValue">time delay</a> value of the timer. </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> +<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osTimerStart</b> shall be consistent in every CMSIS-RTOS.</dd></dl> +<p>Start or restart the timer.</p> +<p><b><a class="el" href="group__CMSIS__RTOS__Status.html">Status and Error Codes</a></b><br/> +</p> +<ul> +<li><em>osOK:</em> the specified timer has been started or restarted.</li> +<li><em>osErrorISR:</em> <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">osTimerStart</a> cannot be called from interrupt service routines.</li> +<li><em>osErrorParameter:</em> <em>timer_id</em> is incorrect.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>Cannot be called from <a class="el" href="functionOverview.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> Time_Callback (<span class="keywordtype">void</span> <span class="keyword">const</span> *arg) { <span class="comment">// timer callback function</span></div> +<div class="line"> <span class="comment">// arg contains &exec</span></div> +<div class="line"> <span class="comment">// called every second after osTimerStart</span></div> +<div class="line">} </div> +<div class="line"> </div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1c720627e08d1cc1afcad44e799ed492">osTimerDef</a> (Timer, Time_Callback); <span class="comment">// define timer</span></div> +<div class="line">uint32_t exec; <span class="comment">// argument for the timer call back function</span></div> +<div class="line"> </div> +<div class="line"><span class="keywordtype">void</span> TimerStart_example (<span class="keywordtype">void</span>) {</div> +<div class="line"> <a class="code" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> id; <span class="comment">// timer id</span></div> +<div class="line"> uint32_t timerDelay; <span class="comment">// timer value</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> status; <span class="comment">// function return status</span></div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Create periodic timer</span></div> +<div class="line"> exec = 1;</div> +<div class="line"> <span class="keywordtype">id</span> = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a> (<a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1b8d670eaf964b2910fa06885e650678">osTimer</a>(Timer), <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9ab9c91f9699162edb09bb7c90c11c8788">osTimerPeriodic</a>, &exec);</div> +<div class="line"> <span class="keywordflow">if</span> (<span class="keywordtype">id</span>) {</div> +<div class="line"> timerDelay = 1000;</div> +<div class="line"> status = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">osTimerStart</a> (<span class="keywordtype">id</span>, timerDelay); <span class="comment">// start timer</span></div> +<div class="line"> <span class="keywordflow">if</span> (status != <a class="code" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99ea9e1c9e2550bb4de8969a935acffc968f">osOK</a>) {</div> +<div class="line"> <span class="comment">// Timer could not be started</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="ga58f36b121a812936435cacc6e1e0e091"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname"><a class="el" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> osTimerStop </td> + <td>(</td> + <td class="paramtype"><a class="el" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> </td> + <td class="paramname"><em>timer_id</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">timer_id</td><td>timer ID obtained by <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a>. </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> +<dl class="section note"><dt>Note</dt><dd>MUST REMAIN UNCHANGED: <b>osTimerStop</b> shall be consistent in every CMSIS-RTOS.</dd></dl> +<p>Stop the timer.</p> +<p><b><a class="el" href="group__CMSIS__RTOS__Status.html">Status and Error Codes</a></b><br/> +</p> +<ul> +<li><em>osOK:</em> the specified timer has been stopped.</li> +<li><em>osErrorISR:</em> <a class="el" href="group__CMSIS__RTOS__TimerMgmt.html#ga58f36b121a812936435cacc6e1e0e091">osTimerStop</a> cannot be called from interrupt service routines.</li> +<li><em>osErrorParameter:</em> <em>timer_id</em> is incorrect.</li> +<li><em>osErrorResource:</em> the timer is not started.</li> +</ul> +<dl class="section note"><dt>Note</dt><dd>Cannot be called from <a class="el" href="functionOverview.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> Timer_Callback (<span class="keywordtype">void</span> <span class="keyword">const</span> *arg); <span class="comment">// prototype for timer callback function</span></div> +<div class="line"><a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1c720627e08d1cc1afcad44e799ed492">osTimerDef</a> (Timer, Timer_Callback); <span class="comment">// define timer</span></div> +<div class="line"> </div> +<div class="line"><span class="keywordtype">void</span> TimerStop_example (<span class="keywordtype">void</span>) {</div> +<div class="line"> <a class="code" href="cmsis__os_8h.html#ab8530dd4273f1f5382187732e14fcaa7">osTimerId</a> id; <span class="comment">// timer id</span></div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99e">osStatus</a> status; <span class="comment">// function return status</span></div> +<div class="line"> </div> +<div class="line"> <span class="comment">// Create periodic timer</span></div> +<div class="line"> exec = 1;</div> +<div class="line"> <span class="keywordtype">id</span> = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gaedd312bfdca04e0b8162b666e09a1ae6">osTimerCreate</a> (<a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga1b8d670eaf964b2910fa06885e650678">osTimer</a>(Timer2), <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#gadac860eb9e1b4b0619271e6595ed83d9ab9c91f9699162edb09bb7c90c11c8788">osTimerPeriodic</a>, NULL);</div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">osTimerStart</a> (<span class="keywordtype">id</span>, 1000); <span class="comment">// start timer</span></div> +<div class="line"> :</div> +<div class="line"> status = <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga58f36b121a812936435cacc6e1e0e091">osTimerStop</a> (<span class="keywordtype">id</span>); <span class="comment">// stop timer</span></div> +<div class="line"> <span class="keywordflow">if</span> (status != <a class="code" href="group__CMSIS__RTOS__Status.html#gae2e091fefc4c767117727bd5aba4d99ea9e1c9e2550bb4de8969a935acffc968f">osOK</a>) {</div> +<div class="line"> <span class="comment">// Timer could not be stopped</span></div> +<div class="line"> } </div> +<div class="line"> :</div> +<div class="line"> <a class="code" href="group__CMSIS__RTOS__TimerMgmt.html#ga27a797a401b068e2644d1125f22a07ca">osTimerStart</a> (<span class="keywordtype">id</span>, 1000); <span class="comment">// start timer again</span></div> +<div class="line"> :</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 Wed Aug 1 2018 17:12:43 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> 1.8.6 + --> + </li> + </ul> +</div> +</body> +</html> |