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<a href="#func-members">Functions</a>  </div>
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<div class="title">Generic Wait Functions<div class="ingroups"><a class="el" href="group__CMSIS__RTOS.html">CMSIS-RTOS2 API</a></div></div>  </div>
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<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>&#160;</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">&#160;</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">&#160;</td></tr>
<tr class="memitem:gaf0763875335699a9baa704ee36990d3c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__CMSIS__RTOS__Wait.html#gaf0763875335699a9baa704ee36990d3c">osDelayUntil</a> (uint64_t ticks)</td></tr>
<tr class="memdesc:gaf0763875335699a9baa704ee36990d3c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Wait until specified time.  <a href="#gaf0763875335699a9baa704ee36990d3c">More...</a><br/></td></tr>
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<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>
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          <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&#160;</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. That means that the actual time delay may be up to one timer tick less.</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 &quot;<a class="code" href="cmsis__os2_8h.html">cmsis_os2.h</a>&quot;</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">  <a class="code" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> 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 --> 
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          <td class="memname"><a class="el" href="group__CMSIS__RTOS__Definitions.html#ga6c0dbe6069e4e7f47bb4cd32ae2b813e">osStatus_t</a> osDelayUntil </td>
          <td>(</td>
          <td class="paramtype">uint64_t&#160;</td>
          <td class="paramname"><em>ticks</em></td><td>)</td>
          <td></td>
        </tr>
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</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>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 is either in the past or cannot be handled (out of bounds).</li>
<li><em>osErrorISR:</em> <a class="el" href="group__CMSIS__RTOS__Wait.html#gaf0763875335699a9baa704ee36990d3c">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 &quot;<a class="code" href="cmsis__os2_8h.html">cmsis_os2.h</a>&quot;</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">  uint64_t tick;</div>
<div class="line"></div>
<div class="line">  tick = <a class="code" href="group__CMSIS__RTOS__KernelCtrl.html#ga3cad48045fb59e47dc8bab75b420cb5f">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#gaf0763875335699a9baa704ee36990d3c">osDelayUntil</a>(tick);</div>
<div class="line">    <span class="comment">// ...</span></div>
<div class="line">  }</div>
<div class="line">}</div>
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