Home Explore Help
Sign In
ARM-software
/
CMSIS_5
mirror of https://github-proxy.rt-thread.io/ARM-software/CMSIS_5.git
2
0
Fork 0
Files Issues 0 Wiki
Tree: 5.7.0
Branches Tags
CMSIS_5
/
docs
/
DSP
/
html
/
arm_signal_converge_example_f32_8c-example.html

arm_signal_converge_example_f32_8c-example.html 33 KB
Permalink History Raw

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326 
  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    2. 

  2. <html xmlns="http://www.w3.org/1999/xhtml">
    3. 

  3. <head>
    4. 

  4. <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
    5. 

  5. <meta http-equiv="X-UA-Compatible" content="IE=9"/>
    6. 

  6. <title>arm_signal_converge_example_f32.c</title>
    7. 

  7. <title>CMSIS-DSP: arm_signal_converge_example_f32.c</title>
    8. 

  8. <link href="tabs.css" rel="stylesheet" type="text/css"/>
    9. 

  9. <link href="cmsis.css" rel="stylesheet" type="text/css" />
    10. 

  10. <script type="text/javascript" src="jquery.js"></script>
    11. 

  11. <script type="text/javascript" src="dynsections.js"></script>
    12. 

  12. <script type="text/javascript" src="printComponentTabs.js"></script>
    13. 

  13. <link href="navtree.css" rel="stylesheet" type="text/css"/>
    14. 

  14. <script type="text/javascript" src="resize.js"></script>
    15. 

  15. <script type="text/javascript" src="navtree.js"></script>
    16. 

  16. <script type="text/javascript">
    17. 

  17.   $(document).ready(initResizable);
    18. 

  18.   $(window).load(resizeHeight);
    19. 

  19. </script>
    20. 

  20. <link href="search/search.css" rel="stylesheet" type="text/css"/>
    21. 

  21. <script type="text/javascript" src="search/search.js"></script>
    22. 

  22. <script type="text/javascript">
    23. 

  23.   $(document).ready(function() { searchBox.OnSelectItem(0); });
    24. 

  24. </script>
    25. 

  25. </head>
    26. 

  26. <body>
    27. 

  27. <div id="top"><!-- do not remove this div, it is closed by doxygen! -->
    28. 

  28. <div id="titlearea">
    29. 

  29. <table cellspacing="0" cellpadding="0">
    30. 

  30.  <tbody>
    31. 

  31.  <tr style="height: 46px;">
    32. 

  32.   <td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td>
    33. 

  33.   <td style="padding-left: 0.5em;">
    34. 

  34.    <div id="projectname">CMSIS-DSP
    35. 

  35.    &#160;<span id="projectnumber">Version 1.8.0</span>
    36. 

  36.    </div>
    37. 

  37.    <div id="projectbrief">CMSIS DSP Software Library</div>
    38. 

  38.   </td>
    39. 

  39.  </tr>
    40. 

  40.  </tbody>
    41. 

  41. </table>
    42. 

  42. </div>
    43. 

  43. <!-- end header part -->
    44. 

  44. <div id="CMSISnav" class="tabs1">
    45. 

  45.     <ul class="tablist">
    46. 

  46.       <script type="text/javascript">
    47. 

  47. 		<!--
    48. 

  48. 		writeComponentTabs.call(this);
    49. 

  49. 		//-->
    50. 

  50.       </script>
    51. 

  51. 	  </ul>
    52. 

  52. </div>
    53. 

  53. <!-- Generated by Doxygen 1.8.6 -->
    54. 

  54. <script type="text/javascript">
    55. 

  55. var searchBox = new SearchBox("searchBox", "search",false,'Search');
    56. 

  56. </script>
    57. 

  57.   <div id="navrow1" class="tabs">
    58. 

  58.     <ul class="tablist">
    59. 

  59.       <li><a href="index.html"><span>Main&#160;Page</span></a></li>
    60. 

  60.       <li><a href="pages.html"><span>Usage&#160;and&#160;Description</span></a></li>
    61. 

  61.       <li><a href="modules.html"><span>Reference</span></a></li>
    62. 

  62.       <li>
    63. 

  63.         <div id="MSearchBox" class="MSearchBoxInactive">
    64. 

  64.         <span class="left">
    65. 

  65.           <img id="MSearchSelect" src="search/mag_sel.png"
    66. 

  66.                onmouseover="return searchBox.OnSearchSelectShow()"
    67. 

  67.                onmouseout="return searchBox.OnSearchSelectHide()"
    68. 

  68.                alt=""/>
    69. 

  69.           <input type="text" id="MSearchField" value="Search" accesskey="S"
    70. 

  70.                onfocus="searchBox.OnSearchFieldFocus(true)" 
    71. 

  71.                onblur="searchBox.OnSearchFieldFocus(false)" 
    72. 

  72.                onkeyup="searchBox.OnSearchFieldChange(event)"/>
    73. 

  73.           </span><span class="right">
    74. 

  74.             <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
    75. 

  75.           </span>
    76. 

  76.         </div>
    77. 

  77.       </li>
    78. 

  78.     </ul>
    79. 

  79.   </div>
    80. 

  80. </div><!-- top -->
    81. 

  81. <div id="side-nav" class="ui-resizable side-nav-resizable">
    82. 

  82.   <div id="nav-tree">
    83. 

  83.     <div id="nav-tree-contents">
    84. 

  84.       <div id="nav-sync" class="sync"></div>
    85. 

  85.     </div>
    86. 

  86.   </div>
    87. 

  87.   <div id="splitbar" style="-moz-user-select:none;" 
    88. 

  88.        class="ui-resizable-handle">
    89. 

  89.   </div>
    90. 

  90. </div>
    91. 

  91. <script type="text/javascript">
    92. 

  92. $(document).ready(function(){initNavTree('arm_signal_converge_example_f32_8c-example.html','');});
    93. 

  93. </script>
    94. 

  94. <div id="doc-content">
    95. 

  95. <!-- window showing the filter options -->
    96. 

  96. <div id="MSearchSelectWindow"
    97. 

  97.      onmouseover="return searchBox.OnSearchSelectShow()"
    98. 

  98.      onmouseout="return searchBox.OnSearchSelectHide()"
    99. 

  99.      onkeydown="return searchBox.OnSearchSelectKey(event)">
    100. 

  100. <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>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Files</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark">&#160;</span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark">&#160;</span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark">&#160;</span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark">&#160;</span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(9)"><span class="SelectionMark">&#160;</span>Macros</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(10)"><span class="SelectionMark">&#160;</span>Groups</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(11)"><span class="SelectionMark">&#160;</span>Pages</a></div>
    101. 

  101. 

  102. <!-- iframe showing the search results (closed by default) -->
    103. 

  103. <div id="MSearchResultsWindow">
    104. 

  104. <iframe src="javascript:void(0)" frameborder="0" 
    105. 

  105.         name="MSearchResults" id="MSearchResults">
    106. 

  106. </iframe>
    107. 

  107. </div>
    108. 

  108. 

  109. <div class="header">
    110. 

  110.   <div class="headertitle">
    111. 

  111. <div class="title">arm_signal_converge_example_f32.c</div>  </div>
    112. 

  112. </div><!--header-->
    113. 

  113. <div class="contents">
    114. 

  114. <div class="fragment"><div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    115. 

  115. <div class="line"><span class="comment">* Copyright (C) 2010-2012 ARM Limited. All rights reserved.</span></div>
    116. 

  116. <div class="line"><span class="comment">*</span></div>
    117. 

  117. <div class="line"><span class="comment">* $Date:         17. January 2013</span></div>
    118. 

  118. <div class="line"><span class="comment">* $Revision:     V1.4.0</span></div>
    119. 

  119. <div class="line"><span class="comment">*</span></div>
    120. 

  120. <div class="line"><span class="comment">* Project:       CMSIS DSP Library</span></div>
    121. 

  121. <div class="line"><span class="comment">* Title:         arm_signal_converge_example_f32.c</span></div>
    122. 

  122. <div class="line"><span class="comment">*</span></div>
    123. 

  123. <div class="line"><span class="comment">* Description:   Example code demonstrating convergence of an adaptive</span></div>
    124. 

  124. <div class="line"><span class="comment">*                filter.</span></div>
    125. 

  125. <div class="line"><span class="comment">*</span></div>
    126. 

  126. <div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div>
    127. 

  127. <div class="line"><span class="comment">*</span></div>
    128. 

  128. <div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div>
    129. 

  129. <div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div>
    130. 

  130. <div class="line"><span class="comment">* are met:</span></div>
    131. 

  131. <div class="line"><span class="comment">*   - Redistributions of source code must retain the above copyright</span></div>
    132. 

  132. <div class="line"><span class="comment">*     notice, this list of conditions and the following disclaimer.</span></div>
    133. 

  133. <div class="line"><span class="comment">*   - Redistributions in binary form must reproduce the above copyright</span></div>
    134. 

  134. <div class="line"><span class="comment">*     notice, this list of conditions and the following disclaimer in</span></div>
    135. 

  135. <div class="line"><span class="comment">*     the documentation and/or other materials provided with the</span></div>
    136. 

  136. <div class="line"><span class="comment">*     distribution.</span></div>
    137. 

  137. <div class="line"><span class="comment">*   - Neither the name of ARM LIMITED nor the names of its contributors</span></div>
    138. 

  138. <div class="line"><span class="comment">*     may be used to endorse or promote products derived from this</span></div>
    139. 

  139. <div class="line"><span class="comment">*     software without specific prior written permission.</span></div>
    140. 

  140. <div class="line"><span class="comment">*</span></div>
    141. 

  141. <div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
    142. 

  142. <div class="line"><span class="comment">* &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
    143. 

  143. <div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div>
    144. 

  144. <div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div>
    145. 

  145. <div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div>
    146. 

  146. <div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div>
    147. 

  147. <div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
    148. 

  148. <div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div>
    149. 

  149. <div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
    150. 

  150. <div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div>
    151. 

  151. <div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div>
    152. 

  152. <div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div>
    153. 

  153. <div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div>
    154. 

  154. <div class="line"></div>
    155. 

  155. <div class="line"><span class="preprocessor">#include &quot;<a class="code" href="arm__math_8h.html">arm_math.h</a>&quot;</span></div>
    156. 

  156. <div class="line"><span class="preprocessor">#include &quot;math_helper.h&quot;</span></div>
    157. 

  157. <div class="line"></div>
    158. 

  158. <div class="line"><span class="preprocessor">#if defined(SEMIHOSTING)</span></div>
    159. 

  159. <div class="line"><span class="preprocessor"></span><span class="preprocessor">#include &lt;stdio.h&gt;</span></div>
    160. 

  160. <div class="line"><span class="preprocessor">#endif</span></div>
    161. 

  161. <div class="line"><span class="preprocessor"></span></div>
    162. 

  162. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    163. 

  163. <div class="line"><span class="comment">** Global defines for the simulation</span></div>
    164. 

  164. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    165. 

  165. <div class="line"></div>
    166. 

  166. <div class="line"><span class="preprocessor">#define TEST_LENGTH_SAMPLES 1536</span></div>
    167. 

  167. <div class="line"><span class="preprocessor"></span><span class="preprocessor">#define NUMTAPS               32</span></div>
    168. 

  168. <div class="line"><span class="preprocessor"></span><span class="preprocessor">#define BLOCKSIZE             32</span></div>
    169. 

  169. <div class="line"><span class="preprocessor"></span><span class="preprocessor">#define DELTA_ERROR         0.00009f</span></div>
    170. 

  170. <div class="line"><span class="preprocessor"></span><span class="preprocessor">#define DELTA_COEFF         0.0001f</span></div>
    171. 

  171. <div class="line"><span class="preprocessor"></span><span class="preprocessor">#define MU                  0.5f</span></div>
    172. 

  172. <div class="line"><span class="preprocessor"></span></div>
    173. 

  173. <div class="line"><span class="preprocessor">#define NUMFRAMES (TEST_LENGTH_SAMPLES / BLOCKSIZE)</span></div>
    174. 

  174. <div class="line"><span class="preprocessor"></span></div>
    175. 

  175. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    176. 

  176. <div class="line"><span class="comment">* Declare FIR state buffers and structure</span></div>
    177. 

  177. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    178. 

  178. <div class="line"></div>
    179. 

  179. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a0"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a358ec4e79689e6d3787b89fe78bdb772">firStateF32</a>[<a name="a1"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a> + <a name="a2"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
    180. 

  180. <div class="line"><a name="_a3"></a><a class="code" href="structarm__fir__instance__f32.html">arm_fir_instance_f32</a> <a name="a4"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a652d3507a776117b4860b3e18f2d2d64">LPF_instance</a>;</div>
    181. 

  181. <div class="line"></div>
    182. 

  182. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    183. 

  183. <div class="line"><span class="comment">* Declare LMSNorm state buffers and structure</span></div>
    184. 

  184. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    185. 

  185. <div class="line"></div>
    186. 

  186. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a5"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a706980f6f654d199c61e08e7814bd0a1">lmsStateF32</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a> + <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
    187. 

  187. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a6"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a276e8a27484cf9389dabf047e76992ed">errOutput</a>[<a name="a7"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
    188. 

  188. <div class="line"><a name="_a8"></a><a class="code" href="structarm__lms__norm__instance__f32.html">arm_lms_norm_instance_f32</a> <a name="a9"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a519f9b4db839245f3bf2075ff4c17605">lmsNorm_instance</a>;</div>
    189. 

  189. <div class="line"></div>
    190. 

  190. <div class="line"></div>
    191. 

  191. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    192. 

  192. <div class="line"><span class="comment">* Function Declarations for Signal Convergence Example</span></div>
    193. 

  193. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    194. 

  194. <div class="line"></div>
    195. 

  195. <div class="line"><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a10"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#ac786d43cbc17bb09738447034ff8e22e">test_signal_converge_example</a>( <span class="keywordtype">void</span> );</div>
    196. 

  196. <div class="line"></div>
    197. 

  197. <div class="line"></div>
    198. 

  198. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    199. 

  199. <div class="line"><span class="comment">* Internal functions</span></div>
    200. 

  200. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    201. 

  201. <div class="line"><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a11"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a8f521e839d4fad24a4f12a18dfeae5d4">test_signal_converge</a>(<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* <a name="a12"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>,</div>
    202. 

  202. <div class="line">                        uint32_t <a name="a13"></a><a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
    203. 

  203. <div class="line"></div>
    204. 

  204. <div class="line"><span class="keywordtype">void</span> <a name="a14"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#afd2975c4763ec935771e6f63bfe7758b">getinput</a>(<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a>* input,</div>
    205. 

  205. <div class="line">     uint32_t fr_cnt,</div>
    206. 

  206. <div class="line">          uint32_t <a class="code" href="arm__fir__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>);</div>
    207. 

  207. <div class="line"></div>
    208. 

  208. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    209. 

  209. <div class="line"><span class="comment">* External Declarations for FIR F32 module Test</span></div>
    210. 

  210. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    211. 

  211. <div class="line"><span class="keyword">extern</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a15"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#aac98609c83ad8ed2b05c4fd82d2ba59b">testInput_f32</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div>
    212. 

  212. <div class="line"><span class="keyword">extern</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a16"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>[32];</div>
    213. 

  213. <div class="line"><span class="keyword">extern</span> <span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a17"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#aede8780f021b7f5c33df0c5ee2183ee6">FIRCoeff_f32</a>[32];</div>
    214. 

  214. <div class="line"><span class="keyword">extern</span> <a class="code" href="structarm__lms__norm__instance__f32.html">arm_lms_norm_instance_f32</a> <a class="code" href="arm__signal__converge__example__f32_8c.html#a519f9b4db839245f3bf2075ff4c17605">lmsNorm_instance</a>;</div>
    215. 

  215. <div class="line"></div>
    216. 

  216. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    217. 

  217. <div class="line"><span class="comment">* Declare I/O buffers</span></div>
    218. 

  218. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    219. 

  219. <div class="line"></div>
    220. 

  220. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a18"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a16e759789fbc05f878863f009066c8ea">wire1</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
    221. 

  221. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a19"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a4e370163c81ae2b72cc655a6b79e4c6a">wire2</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
    222. 

  222. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a name="a20"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a7e2cceadf6ec7f0aa0f698a680fa3a4b">wire3</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
    223. 

  223. <div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> <a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>[<a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];</div>
    224. 

  224. <div class="line"></div>
    225. 

  225. <div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div>
    226. 

  226. <div class="line"><span class="comment">* Signal converge test</span></div>
    227. 

  227. <div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div>
    228. 

  228. <div class="line"></div>
    229. 

  229. <div class="line">int32_t <a name="a21"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">main</a>(<span class="keywordtype">void</span>)</div>
    230. 

  230. <div class="line">{</div>
    231. 

  231. <div class="line">  uint32_t i;</div>
    232. 

  232. <div class="line">  <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6">arm_status</a> <a name="a22"></a><a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div>
    233. 

  233. <div class="line">  uint32_t index;</div>
    234. 

  234. <div class="line">  <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> minValue;</div>
    235. 

  235. <div class="line"></div>
    236. 

  236. <div class="line">  <span class="comment">/* Initialize the LMSNorm data structure */</span></div>
    237. 

  237. <div class="line">  <a name="a23"></a><a class="code" href="group__LMS__NORM.html#gac7ccbaea863882056eee815456464670">arm_lms_norm_init_f32</a>(&amp;lmsNorm_instance, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#a706980f6f654d199c61e08e7814bd0a1">lmsStateF32</a>, <a name="a24"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a09bc9e6a44f0291cfcf578f2efcddfab">MU</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
    238. 

  238. <div class="line"></div>
    239. 

  239. <div class="line">  <span class="comment">/* Initialize the FIR data structure */</span></div>
    240. 

  240. <div class="line">  <a name="a25"></a><a class="code" href="group__FIR.html#ga5afaa7b8e6735bbc19e582aa9755b0e1">arm_fir_init_f32</a>(&amp;LPF_instance, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__signal__converge__example__f32_8c.html#aede8780f021b7f5c33df0c5ee2183ee6">FIRCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#a358ec4e79689e6d3787b89fe78bdb772">firStateF32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
    241. 

  241. <div class="line"></div>
    242. 

  242. <div class="line">  <span class="comment">/* ----------------------------------------------------------------------</span></div>
    243. 

  243. <div class="line"><span class="comment">  * Loop over the frames of data and execute each of the processing</span></div>
    244. 

  244. <div class="line"><span class="comment">  * functions in the system.</span></div>
    245. 

  245. <div class="line"><span class="comment">  * ------------------------------------------------------------------- */</span></div>
    246. 

  246. <div class="line"></div>
    247. 

  247. <div class="line">  <span class="keywordflow">for</span>(i=0; i &lt; <a name="a26"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a4b6b859e1e3f6021a360390be287ca2c">NUMFRAMES</a>; i++)</div>
    248. 

  248. <div class="line">  {</div>
    249. 

  249. <div class="line">    <span class="comment">/* Read the input data - uniformly distributed random noise - into wire1 */</span></div>
    250. 

  250. <div class="line">    <a name="a27"></a><a class="code" href="group__copy.html#gaa6dfe9554ca61eb3d1eee498396bce88">arm_copy_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#aac98609c83ad8ed2b05c4fd82d2ba59b">testInput_f32</a> + (i * <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>), <a class="code" href="arm__signal__converge__example__f32_8c.html#a16e759789fbc05f878863f009066c8ea">wire1</a>, BLOCKSIZE);</div>
    251. 

  251. <div class="line"></div>
    252. 

  252. <div class="line">    <span class="comment">/* Execute the FIR processing function.  Input wire1 and output wire2 */</span></div>
    253. 

  253. <div class="line">    <a name="a28"></a><a class="code" href="group__FIR.html#ga0cf008f650a75f5e2cf82d10691b64d9">arm_fir_f32</a>(&amp;LPF_instance, <a class="code" href="arm__signal__converge__example__f32_8c.html#a16e759789fbc05f878863f009066c8ea">wire1</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#a4e370163c81ae2b72cc655a6b79e4c6a">wire2</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
    254. 

  254. <div class="line"></div>
    255. 

  255. <div class="line">    <span class="comment">/* Execute the LMS Norm processing function*/</span></div>
    256. 

  256. <div class="line"></div>
    257. 

  257. <div class="line">    <a name="a29"></a><a class="code" href="group__LMS__NORM.html#ga72b3755ed1cf97622851cbbeff83c69e">arm_lms_norm_f32</a>(&amp;lmsNorm_instance, <span class="comment">/* LMSNorm instance */</span></div>
    258. 

  258. <div class="line">         <a class="code" href="arm__signal__converge__example__f32_8c.html#a16e759789fbc05f878863f009066c8ea">wire1</a>,                         <span class="comment">/* Input signal */</span></div>
    259. 

  259. <div class="line">         <a class="code" href="arm__signal__converge__example__f32_8c.html#a4e370163c81ae2b72cc655a6b79e4c6a">wire2</a>,                         <span class="comment">/* Reference Signal */</span></div>
    260. 

  260. <div class="line">         <a class="code" href="arm__signal__converge__example__f32_8c.html#a7e2cceadf6ec7f0aa0f698a680fa3a4b">wire3</a>,                         <span class="comment">/* Converged Signal */</span></div>
    261. 

  261. <div class="line">         <a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>,                    <span class="comment">/* Error Signal, this will become small as the signal converges */</span></div>
    262. 

  262. <div class="line">         <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);                    <span class="comment">/* BlockSize */</span></div>
    263. 

  263. <div class="line"></div>
    264. 

  264. <div class="line">    <span class="comment">/* apply overall gain */</span></div>
    265. 

  265. <div class="line">    <a name="a30"></a><a class="code" href="group__BasicScale.html#ga5e769c8e22da173674c6abca7291e713">arm_scale_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#a7e2cceadf6ec7f0aa0f698a680fa3a4b">wire3</a>, 5, <a class="code" href="arm__signal__converge__example__f32_8c.html#a7e2cceadf6ec7f0aa0f698a680fa3a4b">wire3</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);   <span class="comment">/* in-place buffer */</span></div>
    266. 

  266. <div class="line">  }</div>
    267. 

  267. <div class="line"></div>
    268. 

  268. <div class="line">  status = <a name="a31"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
    269. 

  269. <div class="line"></div>
    270. 

  270. <div class="line">  <span class="comment">/* -------------------------------------------------------------------------------</span></div>
    271. 

  271. <div class="line"><span class="comment">  * Test whether the error signal has reached towards 0.</span></div>
    272. 

  272. <div class="line"><span class="comment">  * ----------------------------------------------------------------------------- */</span></div>
    273. 

  273. <div class="line"></div>
    274. 

  274. <div class="line">  <a name="a32"></a><a class="code" href="group__BasicAbs.html#ga0e8fc7df3033cdbe9cda8a766a46e6d9">arm_abs_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>);</div>
    275. 

  275. <div class="line">  <a name="a33"></a><a class="code" href="group__Min.html#ga514e2c920c432e1a3df2cb03f01d2797">arm_min_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#ae6bcc00ea126543ab33d6174549eacda">err_signal</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>, &amp;minValue, &amp;index);</div>
    276. 

  276. <div class="line"></div>
    277. 

  277. <div class="line">  <span class="keywordflow">if</span> (minValue &gt; <a name="a34"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a6d3c6a4484dcaac72fbfe5100c39b9b6">DELTA_ERROR</a>)</div>
    278. 

  278. <div class="line">  {</div>
    279. 

  279. <div class="line">    status = <a name="a35"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div>
    280. 

  280. <div class="line">  }</div>
    281. 

  281. <div class="line"></div>
    282. 

  282. <div class="line">  <span class="comment">/* ----------------------------------------------------------------------</span></div>
    283. 

  283. <div class="line"><span class="comment">  * Test whether the filter coefficients have converged.</span></div>
    284. 

  284. <div class="line"><span class="comment">  * ------------------------------------------------------------------- */</span></div>
    285. 

  285. <div class="line"></div>
    286. 

  286. <div class="line">  <a name="a36"></a><a class="code" href="group__BasicSub.html#ga76b8b2aec34269c6de0b090cab00fb33">arm_sub_f32</a>((<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *)<a class="code" href="arm__signal__converge__example__f32_8c.html#aede8780f021b7f5c33df0c5ee2183ee6">FIRCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>);</div>
    287. 

  287. <div class="line"></div>
    288. 

  288. <div class="line">  <a class="code" href="group__BasicAbs.html#ga0e8fc7df3033cdbe9cda8a766a46e6d9">arm_abs_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>);</div>
    289. 

  289. <div class="line">  <a class="code" href="group__Min.html#ga514e2c920c432e1a3df2cb03f01d2797">arm_min_f32</a>(<a class="code" href="arm__signal__converge__example__f32_8c.html#aad7c60c30c5af397bb75e603f250f9d3">lmsNormCoeff_f32</a>, <a class="code" href="arm__signal__converge__example__f32_8c.html#ac1d8ddb4f9a957eef3ad13d44de4d804">NUMTAPS</a>, &amp;minValue, &amp;index);</div>
    290. 

  290. <div class="line"></div>
    291. 

  291. <div class="line">  status = (minValue &gt; <a name="a37"></a><a class="code" href="arm__signal__converge__example__f32_8c.html#a9156349d99957ded15d8aa3aa11723de">DELTA_COEFF</a>) ? <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a> : <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div>
    292. 

  292. <div class="line">  </div>
    293. 

  293. <div class="line">  <span class="keywordflow">if</span> (status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div>
    294. 

  294. <div class="line">  {</div>
    295. 

  295. <div class="line"><span class="preprocessor">#if defined (SEMIHOSTING)</span></div>
    296. 

  296. <div class="line"><span class="preprocessor"></span>    printf(<span class="stringliteral">&quot;FAILURE\n&quot;</span>);</div>
    297. 

  297. <div class="line"><span class="preprocessor">#else</span></div>
    298. 

  298. <div class="line"><span class="preprocessor"></span>    <span class="keywordflow">while</span> (1);                             <span class="comment">/* main function does not return */</span></div>
    299. 

  299. <div class="line"><span class="preprocessor">#endif</span></div>
    300. 

  300. <div class="line"><span class="preprocessor"></span>  }</div>
    301. 

  301. <div class="line">  <span class="keywordflow">else</span></div>
    302. 

  302. <div class="line">  {</div>
    303. 

  303. <div class="line"><span class="preprocessor">#if defined (SEMIHOSTING)</span></div>
    304. 

  304. <div class="line"><span class="preprocessor"></span>    printf(<span class="stringliteral">&quot;SUCCESS\n&quot;</span>);</div>
    305. 

  305. <div class="line"><span class="preprocessor">#else</span></div>
    306. 

  306. <div class="line"><span class="preprocessor"></span>    <span class="keywordflow">while</span> (1);                             <span class="comment">/* main function does not return */</span></div>
    307. 

  307. <div class="line"><span class="preprocessor">#endif</span></div>
    308. 

  308. <div class="line"><span class="preprocessor"></span>  }</div>
    309. 

  309. <div class="line"></div>
    310. 

  310. <div class="line">}</div>
    311. 

  311. <div class="line"></div>
    312. 

  312. </div><!-- fragment --> </div><!-- contents -->
    313. 

  313. </div><!-- doc-content -->
    314. 

  314. <!-- start footer part -->
    315. 

  315. <div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
    316. 

  316.   <ul>
    317. 

  317.     <li class="footer">Generated on Thu Apr 9 2020 15:49:21 for CMSIS-DSP Version 1.8.0 by Arm Ltd. All rights reserved.
    318. 

  318. 	<!--
    319. 

  319.     <a href="http://www.doxygen.org/index.html">
    320. 

  320.     <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 
    321. 

  321. 	-->
    322. 

  322. 	</li>
    323. 

  323.   </ul>
    324. 

  324. </div>
    325. 

  325. </body>
    326. 

  326. </html>
    327.