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diff --git a/docs/RTOS2/html/group__CMSIS__RTOS__Wait.html b/docs/RTOS2/html/group__CMSIS__RTOS__Wait.html new file mode 100644 index 0000000..e9cd3e5 --- /dev/null +++ b/docs/RTOS2/html/group__CMSIS__RTOS__Wait.html @@ -0,0 +1,234 @@ +<!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>Generic Wait Functions</title> +<title>CMSIS-RTOS2: Generic Wait Functions</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"/> 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class="contents"> + +<p>Wait for a certain period of time. +<a href="#details">More...</a></p> +<table class="memberdecls"> +<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> +Functions</h2></td></tr> +<tr class="memitem:gaf6055a51390ef65b6b6edc28bf47322e"><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__Wait.html#gaf6055a51390ef65b6b6edc28bf47322e">osDelay</a> (uint32_t ticks)</td></tr> +<tr class="memdesc:gaf6055a51390ef65b6b6edc28bf47322e"><td class="mdescLeft"> </td><td class="mdescRight">Wait for Timeout (Time Delay). <a href="#gaf6055a51390ef65b6b6edc28bf47322e">More...</a><br/></td></tr> +<tr class="separator:gaf6055a51390ef65b6b6edc28bf47322e"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga3c807924c2d6d43bc2ffb49da3f7f3a1"><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__Wait.html#ga3c807924c2d6d43bc2ffb49da3f7f3a1">osDelayUntil</a> (uint32_t ticks)</td></tr> +<tr class="memdesc:ga3c807924c2d6d43bc2ffb49da3f7f3a1"><td class="mdescLeft"> </td><td class="mdescRight">Wait until specified time. <a href="#ga3c807924c2d6d43bc2ffb49da3f7f3a1">More...</a><br/></td></tr> +<tr class="separator:ga3c807924c2d6d43bc2ffb49da3f7f3a1"><td class="memSeparator" colspan="2"> </td></tr> +</table> +<a name="details" id="details"></a><h2 class="groupheader">Description</h2> +<p>The generic wait functions provide means for a time delay.</p> +<dl class="section note"><dt>Note</dt><dd>Generic wait functions cannot be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</a>. </dd></dl> +<h2 class="groupheader">Function Documentation</h2> +<a class="anchor" id="gaf6055a51390ef65b6b6edc28bf47322e"></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> osDelay </td> + <td>(</td> + <td class="paramtype">uint32_t </td> + <td class="paramname"><em>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">ticks</td><td><a class="el" href="theory_of_operation.html#CMSIS_RTOS_TimeOutValue">time ticks</a> value </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>osDelay</b> waits for a time period specified in kernel <em>ticks</em>. For a value of <span class="XML-Token">1</span> the system waits until the next timer tick occurs. The actual time delay may be up to one timer tick less than specified, i.e. calling <code>osDelay(1)</code> right before the next system tick occurs the thread is rescheduled immediately.</p> +<p>The delayed thread is put into the <a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#ThreadStates">BLOCKED</a> state and a context switch occurs immediately. The thread is automatically put back to the <a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#ThreadStates">READY</a> state after the given amount of ticks has elapsed. If the thread will have the highest priority in <a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#ThreadStates">READY</a> state it will being scheduled immediately.</p> +<p>Possible <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> return values:</p> +<ul> +<li><em>osOK:</em> the time delay is executed.</li> +<li><em>osErrorISR:</em> <a class="el" href="group__CMSIS__RTOS__Wait.html#gaf6055a51390ef65b6b6edc28bf47322e">osDelay</a> cannot be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</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="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"> osStatus_t status; <span class="comment">// capture the return status</span></div> +<div class="line"> uint32_t delayTime; <span class="comment">// delay time in milliseconds</span></div> +<div class="line"> </div> +<div class="line"> delayTime = 1000; <span class="comment">// delay 1 second</span></div> +<div class="line"> status = <a class="code" href="group__CMSIS__RTOS__Wait.html#gaf6055a51390ef65b6b6edc28bf47322e">osDelay</a> (delayTime); <span class="comment">// suspend thread execution</span></div> +<div class="line">}</div> +</div><!-- fragment --> +</div> +</div> +<a class="anchor" id="ga3c807924c2d6d43bc2ffb49da3f7f3a1"></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> osDelayUntil </td> + <td>(</td> + <td class="paramtype">uint32_t </td> + <td class="paramname"><em>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">ticks</td><td>absolute time in ticks </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>osDelayUntil</b> waits until an absolute time (specified in kernel <em>ticks</em>) is reached.</p> +<p>The corner case when the kernel tick counter overflows is handled by <b>osDelayUntil</b>. Thus it is absolutely legal to provide a value which is lower than the current tick value, i.e. returned by <a class="el" href="group__CMSIS__RTOS__KernelCtrl.html#ga84bcdbf2fb76b10c8df4e439f0c7e11b">osKernelGetTickCount</a>. Typically as a user you do not have to take care about the overflow. The only limitation you have to have in mind is that the maximum delay is limited to (2<sup>31</sup>)-1 ticks.</p> +<p>The delayed thread is put into the <a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#ThreadStates">BLOCKED</a> state and a context switch occurs immediately. The thread is automatically put back to the <a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#ThreadStates">READY</a> state when the given time is reached. If the thread will have the highest priority in <a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#ThreadStates">READY</a> state it will being scheduled immediately.</p> +<p>Possible <a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> return values:</p> +<ul> +<li><em>osOK:</em> the time delay is executed.</li> +<li><em>osParameter:</em> the time cannot be handled (out of bounds).</li> +<li><em>osErrorISR:</em> <a class="el" href="group__CMSIS__RTOS__Wait.html#ga3c807924c2d6d43bc2ffb49da3f7f3a1">osDelayUntil</a> cannot be called from <a class="el" href="theory_of_operation.html#CMSIS_RTOS_ISR_Calls">Interrupt Service Routines</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="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 --> +</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. 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> |