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  49   <div class="headertitle">
  50 <h1>arm_sin_cos_example_f32.c</h1>  </div>
  51 </div>
  52 <div class="contents">
  53 <a href="arm__sin__cos__example__f32_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* ---------------------------------------------------------------------- </span>
  54 <a name="l00002"></a>00002 <span class="comment">* Copyright (C) 2010 ARM Limited. All rights reserved.   </span>
  55 <a name="l00003"></a>00003 <span class="comment">*  </span>
  56 <a name="l00004"></a>00004 <span class="comment">* $Date:        29. November 2010  </span>
  57 <a name="l00005"></a>00005 <span class="comment">* $Revision:    V1.0.3</span>
  58 <a name="l00006"></a>00006 <span class="comment">*  </span>
  59 <a name="l00007"></a>00007 <span class="comment">* Project:      CMSIS DSP Library  </span>
  60 <a name="l00008"></a>00008 <span class="comment">* Title:        arm_sin_cos_example_f32.c         </span>
  61 <a name="l00009"></a>00009 <span class="comment">*  </span>
  62 <a name="l00010"></a>00010 <span class="comment">* Description:  Example code demonstrating sin and cos calculation of input signal. </span>
  63 <a name="l00011"></a>00011 <span class="comment">* </span>
  64 <a name="l00012"></a>00012 <span class="comment">* Target Processor: Cortex-M4/Cortex-M3  </span>
  65 <a name="l00013"></a>00013 <span class="comment">*</span>
  66 <a name="l00014"></a>00014 <span class="comment">*</span>
  67 <a name="l00015"></a>00015 <span class="comment">* Version 1.0.3 2010/11/29 </span>
  68 <a name="l00016"></a>00016 <span class="comment">*    Re-organized the CMSIS folders and updated documentation. </span>
  69 <a name="l00017"></a>00017 <span class="comment">* </span>
  70 <a name="l00018"></a>00018 <span class="comment">* Version 1.0.1 2010/10/05 KK </span>
  71 <a name="l00019"></a>00019 <span class="comment">*    Production release and review comments incorporated.  </span>
  72 <a name="l00020"></a>00020 <span class="comment">*</span>
  73 <a name="l00021"></a>00021 <span class="comment">* Version 1.0.0 2010/09/20 KK</span>
  74 <a name="l00022"></a>00022 <span class="comment">*    Production release and review comments incorporated.</span>
  75 <a name="l00023"></a>00023 <span class="comment">* ------------------------------------------------------------------- */</span>
  76 <a name="l00024"></a>00024
  77 <a name="l00068"></a>00068 <span class="preprocessor">#include &lt;math.h&gt;</span>
  78 <a name="l00069"></a>00069 <span class="preprocessor">#include &quot;<a class="code" href="arm__math_8h.html">arm_math.h</a>&quot;</span>
  79 <a name="l00070"></a>00070
  80 <a name="l00071"></a>00071 <span class="comment">/* ---------------------------------------------------------------------- </span>
  81 <a name="l00072"></a>00072 <span class="comment">* Defines each of the tests performed </span>
  82 <a name="l00073"></a>00073 <span class="comment">* ------------------------------------------------------------------- */</span>
  83 <a name="l00074"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">00074</a> <span class="preprocessor">#define MAX_BLOCKSIZE   32 </span>
  84 <a name="l00075"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a3fd2b1bcd7ddcf506237987ad780f495">00075</a> <span class="preprocessor"></span><span class="preprocessor">#define DELTA           (0.000001f) </span>
  85 <a name="l00076"></a>00076 <span class="preprocessor"></span>
  86 <a name="l00077"></a>00077
  87 <a name="l00078"></a>00078 <span class="comment">/* ---------------------------------------------------------------------- </span>
  88 <a name="l00079"></a>00079 <span class="comment">* Test input data for Floating point sin_cos example for 32-blockSize </span>
  89 <a name="l00080"></a>00080 <span class="comment">* Generated by the MATLAB randn() function </span>
  90 <a name="l00081"></a>00081 <span class="comment">* ------------------------------------------------------------------- */</span>
  91 <a name="l00082"></a>00082
  92 <a name="l00083"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a8b3b7113988efd5bf11a247d07ae39a1">00083</a> <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 class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[<a class="code" href="arm__sin__cos__example__f32_8c.html#af8a1d2ed31f7c9a00fec46a798edb61b">MAX_BLOCKSIZE</a>] =
  93 <a name="l00084"></a>00084 {
  94 <a name="l00085"></a>00085     -1.244916875853235400,  -4.793533929171324800,  0.360705030233248850,   0.827929644170887320,   -3.299532218312426900,  3.427441903227623800,   3.422401784294607700,   -0.108308165334010680,
  95 <a name="l00086"></a>00086     0.941943896490312180,   0.502609575000365850,   -0.537345278736373500,  2.088817392965764500,   -1.693168684143455700,  6.283185307179590700,   -0.392545884746175080,  0.327893095115825040,
  96 <a name="l00087"></a>00087     3.070147440456292300,   0.170611405884662230,   -0.275275082396073010,  -2.395492805446796300,  0.847311163536506600,   -3.845517018083148800,  2.055818378415868300,   4.672594161978930800,
  97 <a name="l00088"></a>00088     -1.990923030266425800,  2.469305197656249500,   3.609002606064021000,   -4.586736582331667500,  -4.147080139136136300,  1.643756718868359500,   -1.150866392366494800,  1.985805026477433800
  98 <a name="l00089"></a>00089
  99 <a name="l00090"></a>00090
 100 <a name="l00091"></a>00091 };
 101 <a name="l00092"></a>00092
 102 <a name="l00093"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a8bcb5c1f75ed5f1737e435f0de1850a3">00093</a> <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 class="code" href="arm__convolution__example__f32_8c.html#a6463f7327432fc62ad9f6017593330d3">testRefOutput_f32</a> = 1.000000000;
 103 <a name="l00094"></a>00094
 104 <a name="l00095"></a>00095 <span class="comment">/* ---------------------------------------------------------------------- </span>
 105 <a name="l00096"></a>00096 <span class="comment">* Declare Global variables  </span>
 106 <a name="l00097"></a>00097 <span class="comment">* ------------------------------------------------------------------- */</span>
 107 <a name="l00098"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">00098</a> uint32_t <a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a> = 32;
 108 <a name="l00099"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a324833b61eae796082e07d078a67c34f">00099</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a>  <a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>;
 109 <a name="l00100"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">00100</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a>  <a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</a>;
 110 <a name="l00101"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">00101</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a>  <a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</a>;
 111 <a name="l00102"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">00102</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a>  <a class="code" href="arm__sin__cos__example__f32_8c.html#a2cb185794dcb587d158f346ab049cc4e">cosSquareOutput</a>;
 112 <a name="l00103"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">00103</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a>  <a class="code" href="arm__sin__cos__example__f32_8c.html#aa5a66e866ebb91eb971f2805209e9d36">sinSquareOutput</a>;
 113 <a name="l00104"></a>00104
 114 <a name="l00105"></a>00105 <span class="comment">/* ---------------------------------------------------------------------- </span>
 115 <a name="l00106"></a>00106 <span class="comment">* Max magnitude FFT Bin test </span>
 116 <a name="l00107"></a>00107 <span class="comment">* ------------------------------------------------------------------- */</span>
 117 <a name="l00108"></a>00108
 118 <a name="l00109"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">00109</a> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6" title="Error status returned by some functions in the library.">arm_status</a> <a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;
 119 <a name="l00110"></a>00110
 120 <a name="l00111"></a><a class="code" href="arm__sin__cos__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">00111</a> int32_t <a class="code" href="arm__class__marks__example__f32_8c.html#a196718f834091385d38586a0ce4009dc">main</a>(<span class="keywordtype">void</span>)
 121 <a name="l00112"></a>00112 {
 122 <a name="l00113"></a>00113     <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> diff;
 123 <a name="l00114"></a>00114     uint32_t i;
 124 <a name="l00115"></a>00115
 125 <a name="l00116"></a>00116     <span class="keywordflow">for</span>(i=0; i&lt; <a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>; i++)
 126 <a name="l00117"></a>00117     {
 127 <a name="l00118"></a>00118         <a class="code" href="arm__sin__cos__example__f32_8c.html#a85b1050fcef4347d69f35a9aee798f8a">cosOutput</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]);
 128 <a name="l00119"></a>00119         <a class="code" href="arm__sin__cos__example__f32_8c.html#a1e232694019f6b61710fbff5ee27126c">sinOutput</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]);
 129 <a name="l00120"></a>00120
 130 <a name="l00121"></a>00121         <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);
 131 <a name="l00122"></a>00122         <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);
 132 <a name="l00123"></a>00123
 133 <a name="l00124"></a>00124         <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);
 134 <a name="l00125"></a>00125
 135 <a name="l00126"></a>00126         <span class="comment">/* absolute value of difference between ref and test */</span>
 136 <a name="l00127"></a>00127         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>);
 137 <a name="l00128"></a>00128
 138 <a name="l00129"></a>00129         <span class="comment">/* Comparison of sin_cos value with reference */</span>
 139 <a name="l00130"></a>00130         <span class="keywordflow">if</span>(diff &gt; <a class="code" href="arm__sin__cos__example__f32_8c.html#a3fd2b1bcd7ddcf506237987ad780f495">DELTA</a>)
 140 <a name="l00131"></a>00131         {
 141 <a name="l00132"></a>00132            <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>;
 142 <a name="l00133"></a>00133         }
 143 <a name="l00134"></a>00134
 144 <a name="l00135"></a>00135         <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>)
 145 <a name="l00136"></a>00136         {
 146 <a name="l00137"></a>00137            <span class="keywordflow">while</span>(1);
 147 <a name="l00138"></a>00138         }
 148 <a name="l00139"></a>00139
 149 <a name="l00140"></a>00140     }
 150 <a name="l00141"></a>00141 }
 151 <a name="l00142"></a>00142
 152 </pre></div></div>
 153 </div>
 154 <!--- window showing the filter options -->
 155 <div id="MSearchSelectWindow"
 156      onmouseover="return searchBox.OnSearchSelectShow()"
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