212 lines
8.8 KiB
HTML
212 lines
8.8 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Technical Data</title>
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<title>CMSIS-RTOS: Technical Data</title>
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<tr style="height: 46px;">
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<td style="padding-left: 0.5em;">
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<div id="projectname">CMSIS-RTOS
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 <span id="projectnumber">Version 1.03</span>
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</div>
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<div id="projectbrief">Real-Time Operating System: API and RTX Reference Implementation.</div>
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</td>
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<li><a href="index.html"><span>Main Page</span></a></li>
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<li class="current"><a href="pages.html"><span>Usage and Description</span></a></li>
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<li><a href="modules.html"><span>Reference</span></a></li>
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<li>
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<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>
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<!-- iframe showing the search results (closed by default) -->
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<div id="MSearchResultsWindow">
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<iframe src="javascript:void(0)" frameborder="0"
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name="MSearchResults" id="MSearchResults">
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</iframe>
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</div>
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<div class="header">
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<div class="headertitle">
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<div class="title">Technical Data </div> </div>
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</div><!--header-->
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<div class="contents">
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<div class="textblock"><p>This section lists the technical data of CMSIS-RTOS RTX.</p>
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<table class="cmtable">
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<tr>
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<th>Description </th><th><p class="starttd">Limitations </p>
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<p class="endtd"></p>
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</th></tr>
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<tr>
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<td>Defined Tasks </td><td><p class="starttd">Unlimited </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Active Threads </td><td><p class="starttd">250 max </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Mailboxes </td><td><p class="starttd">Unlimited </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Semaphores </td><td><p class="starttd">Unlimited </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Mutexes </td><td><p class="starttd">Unlimited </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Signals </td><td><p class="starttd">16 per thread </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Timer Callbacks </td><td><p class="starttd">Unlimited </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Code Space </td><td><p class="starttd">< 5.0 Kbytes </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>RAM Space for Kernel </td><td><p class="starttd">300 bytes + 128 bytes Main Stack </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>RAM Space for a Thread </td><td><p class="starttd">StackSize + 52 bytes </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>RAM Space for a Mailbox </td><td><p class="starttd">MaxMessages * 4 + 16 bytes </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>RAM Space for a Semaphore </td><td><p class="starttd">8 bytes </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>RAM Space for a Mutex </td><td><p class="starttd">12 bytes </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>RAM Space for a User Timer </td><td><p class="starttd">24 bytes </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Hardware Requirements </td><td><p class="starttd">SysTick timer or other hardware timer </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Thread context switch time </td><td><p class="starttd">< 2.6 usec @ 72 MHz </p>
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<p class="endtd"></p>
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</td></tr>
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<tr>
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<td>Interrupt lockout time </td><td>Not disabled </td></tr>
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</table>
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<dl class="section note"><dt>Note</dt><dd><ul>
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<li>Unlimited means that the RTX kernel does not impose any limitations on the number. However, the available system memory resources limit the number of items you can create.</li>
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<li>RAM requirements depend on the number of concurrently running threads.</li>
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<li>The code and RAM size is calculated for ARMCC Compiler when using the <b>MicroLib</b> runtime library.</li>
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</ul>
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</dd></dl>
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<h1><a class="anchor" id="osWait"></a>
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osWait</h1>
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<p>The generic wait function <b>osWait</b> is currently not supported by CMSIS-RTOS RTX. </p>
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</div></div><!-- contents -->
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</div><!-- doc-content -->
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<!-- start footer part -->
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<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
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<ul>
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<li class="navelem"><a class="el" href="index.html">index</a></li><li class="navelem"><a class="el" href="rtxImplementation.html">RTX Implementation</a></li>
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<li class="footer">Generated on Wed Feb 8 2017 10:21:02 for CMSIS-RTOS by ARM Ltd. All rights reserved.
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</html>
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