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   &#160;<span id="projectnumber">Version 2.1.3</span>
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   <div id="projectbrief">Real-Time Operating System: API and RTX Reference Implementation</div>
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<div class="header">
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<a href="#func-members">Functions</a>  </div>
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<div class="title">Functions<div class="ingroups"><a class="el" href="group__rtx5__specific.html">RTX v5 Specific API</a></div></div>  </div>
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<p>RTX5 functions.  
<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:gaf1745a88f9cc60b609ab1c8076bd346d"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__rtx5__specific__functions.html#gaf1745a88f9cc60b609ab1c8076bd346d">osRtxErrorNotify</a> (uint32_t code, void *object_id)</td></tr>
<tr class="memdesc:gaf1745a88f9cc60b609ab1c8076bd346d"><td class="mdescLeft">&#160;</td><td class="mdescRight">OS Error Callback function.  <a href="#gaf1745a88f9cc60b609ab1c8076bd346d">More...</a><br/></td></tr>
<tr class="separator:gaf1745a88f9cc60b609ab1c8076bd346d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga074068b8efa7074cee68a71481d0b072"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__rtx5__specific__functions.html#ga074068b8efa7074cee68a71481d0b072">osRtxIdleThread</a> (void *argument)</td></tr>
<tr class="memdesc:ga074068b8efa7074cee68a71481d0b072"><td class="mdescLeft">&#160;</td><td class="mdescRight">OS Idle Thread.  <a href="#ga074068b8efa7074cee68a71481d0b072">More...</a><br/></td></tr>
<tr class="separator:ga074068b8efa7074cee68a71481d0b072"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="gaf1745a88f9cc60b609ab1c8076bd346d"></a>
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          <td class="memname">uint32_t osRtxErrorNotify </td>
          <td>(</td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>code</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>object_id</em>&#160;</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">code</td><td>The code to identify the error condition. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">object_id</td><td>A reference to any RTX object to identify the object that caused the issue, can be <span class="XML-Token">NULL</span>.</td></tr>
  </table>
  </dd>
</dl>
<p>Some system error conditions can be detected during runtime. If the RTX kernel detects a runtime error, it calls the runtime error function <b>osRtxErrorNotify</b> for an object specified by parameter <em>object_id</em>.</p>
<p>The parameter <em>code</em> passes the actual error code to this function: </p>
<table class="doxtable">
<tr>
<th>Error Code </th><th>Description  </th></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#ga42206aa2524b8fab613d26bea0f73c44">osRtxErrorStackUnderflow</a> </td><td>Stack overflow detected for thread (thread_id=object_id) </td></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#ga7377235f9fa3cedee06f682cd93f3e88">osRtxErrorISRQueueOverflow</a> </td><td>ISR Queue overflow detected when inserting object (object_id) </td></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#gaad420018f26e751ec55d3922a283beb0">osRtxErrorTimerQueueOverflow</a> </td><td>User Timer Callback Queue overflow detected for timer (timer_id=object_id) </td></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#ga14a24724f6e87744ba84674ef76e4256">osRtxErrorClibSpace</a> </td><td>Standard C/C++ library libspace not available: increase <code>OS_THREAD_LIBSPACE_NUM</code> </td></tr>
<tr>
<td><a class="el" href="group__rtx5__specific__defines.html#gac749c24b9cf6c49b392b015ed0517cfc">osRtxErrorClibMutex</a> </td><td>Standard C/C++ library mutex initialization failed </td></tr>
</table>
<p>The function <b>osRtxErrorNotify</b> must contain an infinite loop to prevent further program execution. You can use an emulator to step over the infinite loop and trace into the code introducing a runtime error. For the overflow errors this means you need to increase the size of the object causing an overflow.</p>
<p><b>Code Example</b> </p>
<div class="fragment"><div class="line"><span class="preprocessor">#include &quot;<a class="code" href="rtx__os_8h.html">rtx_os.h</a>&quot;</span></div>
<div class="line"> </div>
<div class="line">uint32_t <a class="code" href="group__rtx5__specific__functions.html#gaf1745a88f9cc60b609ab1c8076bd346d">osRtxErrorNotify</a> (uint32_t code, <span class="keywordtype">void</span> *object_id) {</div>
<div class="line">  (void)object_id;</div>
<div class="line"> </div>
<div class="line">  <span class="keywordflow">switch</span> (code) {</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#ga42206aa2524b8fab613d26bea0f73c44">osRtxErrorStackUnderflow</a>:</div>
<div class="line">      <span class="comment">// Stack overflow detected for thread (thread_id=object_id)</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#ga7377235f9fa3cedee06f682cd93f3e88">osRtxErrorISRQueueOverflow</a>:</div>
<div class="line">      <span class="comment">// ISR Queue overflow detected when inserting object (object_id)</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#gaad420018f26e751ec55d3922a283beb0">osRtxErrorTimerQueueOverflow</a>:</div>
<div class="line">      <span class="comment">// User Timer Callback Queue overflow detected for timer (timer_id=object_id)</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#ga14a24724f6e87744ba84674ef76e4256">osRtxErrorClibSpace</a>:</div>
<div class="line">      <span class="comment">// Standard C/C++ library libspace not available: increase OS_THREAD_LIBSPACE_NUM</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">case</span> <a class="code" href="group__rtx5__specific__defines.html#gac749c24b9cf6c49b392b015ed0517cfc">osRtxErrorClibMutex</a>:</div>
<div class="line">      <span class="comment">// Standard C/C++ library mutex initialization failed</span></div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">    <span class="keywordflow">default</span>:</div>
<div class="line">      <span class="keywordflow">break</span>;</div>
<div class="line">  }</div>
<div class="line">  <span class="keywordflow">for</span> (;;) {}</div>
<div class="line"><span class="comment">//return 0U;</span></div>
<div class="line">}</div>
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          <td class="memname">void osRtxIdleThread </td>
          <td>(</td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>argument</em></td><td>)</td>
          <td></td>
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      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">argument</td><td>Unused parameter, always set to <span class="XML-Token">NULL</span>.</td></tr>
  </table>
  </dd>
</dl>
<p>The function <b>osRtxIdleThread</b> is executed by the RTX kernel when no other threads are ready to run.</p>
<p>By default, this thread is an empty end-less loop that does nothing. It only waits until another task becomes ready to run. You may change the code of the <b>osRtxIdleThread</b> function to put the CPU into a power-saving or idle mode, see <a class="el" href="theory_of_operation.html#TickLess">Tick-less Low-Power Operation</a>.</p>
<p>The default stack size for this thread is defined in the file RTX_Config.h. Refer to <a class="el" href="config_rtx5.html#threadConfig">Thread Configuration</a>.</p>
<dl class="section attention"><dt>Attention</dt><dd>The idle thread should never be blocked nor terminated! <b>Do not</b> call <ul>
<li>
blocking functions, </li>
<li>
<a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#ga2f8ba6dba6e9c065a6e236ffd410d74a">osThreadTerminate</a>, or  </li>
<li>
<a class="el" href="group__CMSIS__RTOS__ThreadMgmt.html#gaddaa452dd7610e4096647a566d3556fc">osThreadExit</a> </li>
</ul>
and <b>do not</b> return from this function when providing a user defined implementation.</dd></dl>
<p><b>Code Example</b> </p>
<div class="fragment"><div class="line"><span class="preprocessor">#include &quot;<a class="code" href="rtx__os_8h.html">rtx_os.h</a>&quot;</span></div>
<div class="line"> </div>
<div class="line"><a class="code" href="cmsis__os2_8h.html#a153a4a31b276a9758959580538720a51">__NO_RETURN</a> <span class="keywordtype">void</span> <a class="code" href="group__rtx5__specific__functions.html#ga074068b8efa7074cee68a71481d0b072">osRtxIdleThread</a> (<span class="keywordtype">void</span> *argument) {</div>
<div class="line">  (void)argument;</div>
<div class="line"></div>
<div class="line">  <span class="keywordflow">for</span> (;;) {}</div>
<div class="line">}</div>
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