Google Git
Sign in
android / platform / external / arduino-ide / f876b2abdebd02acfa4ba21e607327be4f9668d4 / . / hardware / arduino / sam / system / CMSIS / CMSIS / Documentation / DSP_Lib / html / arm_sin_cos_example_f32_8c-example.html
blob: 33721b76bd92acf45ce423d05761b6c7e9f5550f [file] [log] [blame]
<!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"/>
<title>CMSIS DSP Software Library: arm_sin_cos_example_f32.c</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javaScript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body onload='searchBox.OnSelectItem(0);'>
<!-- Generated by Doxygen 1.7.2 -->
<script type="text/javascript"><!--
var searchBox = new SearchBox("searchBox", "search",false,'Search');
--></script>
<div class="navigation" id="top">
<div class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main&#160;Page</span></a></li>
<li><a href="modules.html"><span>Modules</span></a></li>
<li><a href="annotated.html"><span>Data&#160;Structures</span></a></li>
<li><a href="files.html"><span>Files</span></a></li>
<li><a href="examples.html"><span>Examples</span></a></li>
<li id="searchli">
<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>
<div class="header">
<div class="headertitle">
<h1>arm_sin_cos_example_f32.c</h1> </div>
</div>
<div class="contents">
<div class="fragment"><pre class="fragment"><span class="comment">/* ---------------------------------------------------------------------- </span>
<span class="comment">* Copyright (C) 2010 ARM Limited. All rights reserved. </span>
<span class="comment">* </span>
<span class="comment">* $Date: 29. November 2010 </span>
<span class="comment">* $Revision: V1.0.3</span>
<span class="comment">* </span>
<span class="comment">* Project: CMSIS DSP Library </span>
<span class="comment">* Title: arm_sin_cos_example_f32.c </span>
<span class="comment">* </span>
<span class="comment">* Description: Example code demonstrating sin and cos calculation of input signal. </span>
<span class="comment">* </span>
<span class="comment">* Target Processor: Cortex-M4/Cortex-M3 </span>
<span class="comment">*</span>
<span class="comment">*</span>
<span class="comment">* Version 1.0.3 2010/11/29 </span>
<span class="comment">* Re-organized the CMSIS folders and updated documentation. </span>
<span class="comment">* </span>
<span class="comment">* Version 1.0.1 2010/10/05 KK </span>
<span class="comment">* Production release and review comments incorporated. </span>
<span class="comment">*</span>
<span class="comment">* Version 1.0.0 2010/09/20 KK</span>
<span class="comment">* Production release and review comments incorporated.</span>
<span class="comment">* ------------------------------------------------------------------- */</span>
<span class="preprocessor">#include &lt;math.h&gt;</span>
<span class="preprocessor">#include &quot;<a class="code" href="arm__math_8h.html">arm_math.h</a>&quot;</span>
<span class="comment">/* ---------------------------------------------------------------------- </span>
<span class="comment">* Defines each of the tests performed </span>
<span class="comment">* ------------------------------------------------------------------- */</span>
<span class="preprocessor">#define MAX_BLOCKSIZE 32 </span>
<span class="preprocessor"></span><span class="preprocessor">#define DELTA (0.000001f) </span>
<span class="preprocessor"></span>
<span class="comment">/* ---------------------------------------------------------------------- </span>
<span class="comment">* Test input data for Floating point sin_cos example for 32-blockSize </span>
<span class="comment">* Generated by the MATLAB randn() function </span>
<span class="comment">* ------------------------------------------------------------------- */</span>
<span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a0"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[<a name="a1"></a><a class="code" href="arm__convolution__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>] =
{
-1.244916875853235400, -4.793533929171324800, 0.360705030233248850, 0.827929644170887320, -3.299532218312426900, 3.427441903227623800, 3.422401784294607700, -0.108308165334010680,
0.941943896490312180, 0.502609575000365850, -0.537345278736373500, 2.088817392965764500, -1.693168684143455700, 6.283185307179590700, -0.392545884746175080, 0.327893095115825040,
3.070147440456292300, 0.170611405884662230, -0.275275082396073010, -2.395492805446796300, 0.847311163536506600, -3.845517018083148800, 2.055818378415868300, 4.672594161978930800,
-1.990923030266425800, 2.469305197656249500, 3.609002606064021000, -4.586736582331667500, -4.147080139136136300, 1.643756718868359500, -1.150866392366494800, 1.985805026477433800
};
<span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a2"></a><a class="code" href="arm__convolution__example__f32_8c.html#a6463f7327432fc62ad9f6017593330d3">testRefOutput_f32</a> = 1.000000000;
<span class="comment">/* ---------------------------------------------------------------------- </span>
<span class="comment">* Declare Global variables </span>
<span class="comment">* ------------------------------------------------------------------- */</span>
uint32_t <a name="a3"></a><a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a> = 32;
<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a4"></a><a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>;
<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a5"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>;
<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a6"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>;
<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a7"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>;
<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a8"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>;
<span class="comment">/* ---------------------------------------------------------------------- </span>
<span class="comment">* Max magnitude FFT Bin test </span>
<span class="comment">* ------------------------------------------------------------------- */</span>
<a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6" title="Error status returned by some functions in the library.">arm_status</a> <a name="a9"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;
int32_t <a name="a10"></a><a class="code" href="arm__class__marks__example__f32_8c.html#a196718f834091385d38586a0ce4009dc">main</a>(<span class="keywordtype">void</span>)
{
<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> diff;
uint32_t i;
<span class="keywordflow">for</span>(i=0; i&lt; <a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>; i++)
{
<a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a> = <a name="a11"></a><a class="code" href="group__cos.html#gace15287f9c64b9b4084d1c797d4c49d8" title="Fast approximation to the trigonometric cosine function for floating-point data.">arm_cos_f32</a>(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[i]);
<a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a> = <a name="a12"></a><a class="code" href="group__sin.html#gae164899c4a3fc0e946dc5d55555fe541" title="Fast approximation to the trigonometric sine function for floating-point data.">arm_sin_f32</a>(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[i]);
<a name="a13"></a><a class="code" href="group___basic_mult.html#gaca3f0b8227da431ab29225b88888aa32" title="Floating-point vector multiplication.">arm_mult_f32</a>(&amp;<a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>, &amp;<a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>, &amp;<a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>, 1);
<a class="code" href="group___basic_mult.html#gaca3f0b8227da431ab29225b88888aa32" title="Floating-point vector multiplication.">arm_mult_f32</a>(&amp;<a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>, &amp;<a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>, &amp;<a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>, 1);
<a name="a14"></a><a class="code" href="group___basic_add.html#ga6a904a547413b10565dd1d251c6bafbd" title="Floating-point vector addition.">arm_add_f32</a>(&amp;<a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>, &amp;<a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>, &amp;<a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, 1);
<span class="comment">/* absolute value of difference between ref and test */</span>
diff = fabsf(<a class="code" href="arm__convolution__example__f32_8c.html#a6463f7327432fc62ad9f6017593330d3">testRefOutput_f32</a> - <a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>);
<span class="comment">/* Comparison of sin_cos value with reference */</span>
<span class="keywordflow">if</span>(diff &gt; <a name="a15"></a><a class="code" href="arm__convolution__example__f32_8c.html#a3fd2b1bcd7ddcf506237987ad780f495">DELTA</a>)
{
<a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a> = <a name="a16"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;
}
<span class="keywordflow">if</span>( <a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a> == <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>)
{
<span class="keywordflow">while</span>(1);
}
}
}
</pre></div> </div>
</div>
<!--- 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">&#160;</span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark">&#160;</span>Data Structures</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark">&#160;</span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark">&#160;</span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark">&#160;</span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark">&#160;</span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark">&#160;</span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark">&#160;</span>Defines</a></div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<hr class="footer"/><address class="footer"><small>Generated on Fri Jul 15 2011 13:16:15 for CMSIS DSP Software Library by&#160;
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.2 </small></address>
</body>
</html>