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+</script> + <div id="navrow1" class="tabs"> + <ul class="tablist"> + <li class="current"><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('index.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="headertitle"> +<div class="title">CMSIS DSP Software Library </div> </div> +</div><!--header--> +<div class="contents"> +<div class="textblock"><h2>Introduction</h2> +<p>This user manual describes the CMSIS DSP software library, a suite of common signal processing functions for use on Cortex-M processor based devices.</p> +<p>The library is divided into a number of functions each covering a specific category:</p> +<ul> +<li>Basic math functions</li> +<li>Fast math functions</li> +<li>Complex math functions</li> +<li>Filters</li> +<li>Matrix functions</li> +<li>Transforms</li> +<li>Motor control functions</li> +<li>Statistical functions</li> +<li>Support functions</li> +<li>Interpolation functions</li> +</ul> +<p>The library has separate functions for operating on 8-bit integers, 16-bit integers, 32-bit integer and 32-bit floating-point values.</p> +<h2>Using the Library</h2> +<p>The library installer contains prebuilt versions of the libraries in the <code>Lib</code> folder.</p> +<ul> +<li>arm_cortexM7lfdp_math.lib (Little endian and Double Precision Floating Point Unit on Cortex-M7)</li> +<li>arm_cortexM7bfdp_math.lib (Big endian and Double Precision Floating Point Unit on Cortex-M7)</li> +<li>arm_cortexM7lfsp_math.lib (Little endian and Single Precision Floating Point Unit on Cortex-M7)</li> +<li>arm_cortexM7bfsp_math.lib (Big endian and Single Precision Floating Point Unit on Cortex-M7)</li> +<li>arm_cortexM7l_math.lib (Little endian on Cortex-M7)</li> +<li>arm_cortexM7b_math.lib (Big endian on Cortex-M7)</li> +<li>arm_cortexM4lf_math.lib (Little endian and Floating Point Unit on Cortex-M4)</li> +<li>arm_cortexM4bf_math.lib (Big endian and Floating Point Unit on Cortex-M4)</li> +<li>arm_cortexM4l_math.lib (Little endian on Cortex-M4)</li> +<li>arm_cortexM4b_math.lib (Big endian on Cortex-M4)</li> +<li>arm_cortexM3l_math.lib (Little endian on Cortex-M3)</li> +<li>arm_cortexM3b_math.lib (Big endian on Cortex-M3)</li> +<li>arm_cortexM0l_math.lib (Little endian on Cortex-M0 / CortexM0+)</li> +<li>arm_cortexM0b_math.lib (Big endian on Cortex-M0 / CortexM0+)</li> +</ul> +<p>The library functions are declared in the public file <code><a class="el" href="arm__math_8h.html">arm_math.h</a></code> which is placed in the <code>Include</code> folder. Simply include this file and link the appropriate library in the application and begin calling the library functions. The Library supports single public header file <code> <a class="el" href="arm__math_8h.html">arm_math.h</a></code> for Cortex-M7/M4/M3/M0/M0+ with little endian and big endian. Same header file will be used for floating point unit(FPU) variants. Define the appropriate pre processor MACRO ARM_MATH_CM7 or ARM_MATH_CM4 or ARM_MATH_CM3 or ARM_MATH_CM0 or ARM_MATH_CM0PLUS depending on the target processor in the application.</p> +<h2>Examples</h2> +<p>The library ships with a number of examples which demonstrate how to use the library functions.</p> +<h2>Toolchain Support</h2> +<p>The library has been developed and tested with MDK-ARM version 5.14.0.0 The library is being tested in GCC and IAR toolchains and updates on this activity will be made available shortly.</p> +<h2>Building the Library</h2> +<p>The library installer contains a project file to re build libraries on MDK-ARM Tool chain in the <code>CMSIS\DSP_Lib\Source\ARM</code> folder.</p> +<ul> +<li>arm_cortexM_math.uvprojx</li> +</ul> +<p>The libraries can be built by opening the arm_cortexM_math.uvprojx project in MDK-ARM, selecting a specific target, and defining the optional pre processor MACROs detailed above.</p> +<h2>Pre-processor Macros</h2> +<p>Each library project have differant pre-processor macros.</p> +<ul> +<li>UNALIGNED_SUPPORT_DISABLE:</li> +</ul> +<p>Define macro UNALIGNED_SUPPORT_DISABLE, If the silicon does not support unaligned memory access</p> +<ul> +<li>ARM_MATH_BIG_ENDIAN:</li> +</ul> +<p>Define macro ARM_MATH_BIG_ENDIAN to build the library for big endian targets. By default library builds for little endian targets.</p> +<ul> +<li>ARM_MATH_MATRIX_CHECK:</li> +</ul> +<p>Define macro ARM_MATH_MATRIX_CHECK for checking on the input and output sizes of matrices</p> +<ul> +<li>ARM_MATH_ROUNDING:</li> +</ul> +<p>Define macro ARM_MATH_ROUNDING for rounding on support functions</p> +<ul> +<li>ARM_MATH_CMx:</li> +</ul> +<p>Define macro ARM_MATH_CM4 for building the library on Cortex-M4 target, ARM_MATH_CM3 for building library on Cortex-M3 target and ARM_MATH_CM0 for building library on Cortex-M0 target, ARM_MATH_CM0PLUS for building library on Cortex-M0+ target, and ARM_MATH_CM7 for building the library on cortex-M7.</p> +<ul> +<li>__FPU_PRESENT:</li> +</ul> +<p>Initialize macro __FPU_PRESENT = 1 when building on FPU supported Targets. Enable this macro for M4bf and M4lf libraries</p> +<hr/> + <h2>CMSIS-DSP in ARM::CMSIS Pack</h2> +<p>The following files relevant to CMSIS-DSP are present in the <b>ARM::CMSIS</b> Pack directories: </p> +<table class="doxtable"> +<tr> +<th>File/Folder </th><th>Content </th></tr> +<tr> +<td><b>CMSIS\Documentation\DSP</b> </td><td>This documentation </td></tr> +<tr> +<td><b>CMSIS\DSP_Lib</b> </td><td>Software license agreement (license.txt) </td></tr> +<tr> +<td><b>CMSIS\DSP_Lib\Examples</b> </td><td>Example projects demonstrating the usage of the library functions </td></tr> +<tr> +<td><b>CMSIS\DSP_Lib\Source</b> </td><td>Source files for rebuilding the library </td></tr> +</table> +<hr/> + <h2>Revision History of CMSIS-DSP</h2> +<p>Please refer to <a class="el" href="_change_log_pg.html">Change Log</a>.</p> +<h2>Copyright Notice</h2> +<p>Copyright (C) 2010-2015 ARM Limited. All rights reserved. </p> +</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 Tue Oct 27 2015 14:35:34 for CMSIS-DSP by ARM Ltd. All rights reserved. + <!-- + <a href="http://www.doxygen.org/index.html"> + <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.2 + --> + </li> + </ul> +</div> +</body> +</html> |