ARM-software
/
CMSIS_5
镜像自地址 https://github-proxy.rt-thread.io/ARM-software/CMSIS_5.git


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280
							<!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"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>arm_cfft_f32.c File Reference</title>
<title>CMSIS-DSP: arm_cfft_f32.c File Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="cmsis.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script type="text/javascript" src="printComponentTabs.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
  $(document).ready(initResizable);
  $(window).load(resizeHeight);
</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
  $(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 46px;">
  <td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td>
  <td style="padding-left: 0.5em;">
   <div id="projectname">CMSIS-DSP
   &#160;<span id="projectnumber">Version 1.8.0</span>
   </div>
   <div id="projectbrief">CMSIS DSP Software Library</div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<div id="CMSISnav" class="tabs1">
    <ul class="tablist">
      <script type="text/javascript">
		<!--
		writeComponentTabs.call(this);
		//-->
      </script>
	  </ul>
</div>
<!-- Generated by Doxygen 1.8.6 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li><a href="pages.html"><span>Usage&#160;and&#160;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('arm__cfft__f32_8c.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">&#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>

<!-- 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="summary">
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">arm_cfft_f32.c File Reference</div>  </div>
</div><!--header-->
<div class="contents">
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a72350c6eaa1eef8796ab43c1497c6b9c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__f32_8c.html#a72350c6eaa1eef8796ab43c1497c6b9c">arm_radix8_butterfly_f32</a> (<a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, uint16_t fftLen, const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pCoef, uint16_t twidCoefModifier)</td></tr>
<tr class="separator:a72350c6eaa1eef8796ab43c1497c6b9c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac8e7ebe1cb131a5b0f55d0464640591f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__f32_8c.html#ac8e7ebe1cb131a5b0f55d0464640591f">arm_bitreversal_32</a> (uint32_t *pSrc, const uint16_t bitRevLen, const uint16_t *pBitRevTable)</td></tr>
<tr class="memdesc:ac8e7ebe1cb131a5b0f55d0464640591f"><td class="mdescLeft">&#160;</td><td class="mdescRight">In-place 32 bit reversal function.  <a href="#ac8e7ebe1cb131a5b0f55d0464640591f">More...</a><br/></td></tr>
<tr class="separator:ac8e7ebe1cb131a5b0f55d0464640591f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae99e2b173033e9910058869bdf0619d9"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__f32_8c.html#ae99e2b173033e9910058869bdf0619d9">arm_cfft_radix8by2_f32</a> (<a class="el" href="structarm__cfft__instance__f32.html">arm_cfft_instance_f32</a> *<a class="el" href="arm__bayes__example__f32_8c.html#ad5af783c9e1eb1514dec0a59dac35eb7">S</a>, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *p1)</td></tr>
<tr class="separator:ae99e2b173033e9910058869bdf0619d9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4bb346f59bca06cebe0defc8e15b69a6"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__f32_8c.html#a4bb346f59bca06cebe0defc8e15b69a6">arm_cfft_radix8by4_f32</a> (<a class="el" href="structarm__cfft__instance__f32.html">arm_cfft_instance_f32</a> *<a class="el" href="arm__bayes__example__f32_8c.html#ad5af783c9e1eb1514dec0a59dac35eb7">S</a>, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *p1)</td></tr>
<tr class="separator:a4bb346f59bca06cebe0defc8e15b69a6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gade0f9c4ff157b6b9c72a1eafd86ebf80"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">arm_cfft_f32</a> (const <a class="el" href="structarm__cfft__instance__f32.html">arm_cfft_instance_f32</a> *<a class="el" href="arm__bayes__example__f32_8c.html#ad5af783c9e1eb1514dec0a59dac35eb7">S</a>, <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *p1, uint8_t <a class="el" href="arm__fft__bin__example__f32_8c.html#a379ccb99013d369a41b49619083c16ef">ifftFlag</a>, uint8_t bitReverseFlag)</td></tr>
<tr class="memdesc:gade0f9c4ff157b6b9c72a1eafd86ebf80"><td class="mdescLeft">&#160;</td><td class="mdescRight">Processing function for the floating-point complex FFT.  <a href="group__ComplexFFT.html#gade0f9c4ff157b6b9c72a1eafd86ebf80">More...</a><br/></td></tr>
<tr class="separator:gade0f9c4ff157b6b9c72a1eafd86ebf80"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="ac8e7ebe1cb131a5b0f55d0464640591f"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void arm_bitreversal_32 </td>
          <td>(</td>
          <td class="paramtype">uint32_t *&#160;</td>
          <td class="paramname"><em>pSrc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint16_t&#160;</td>
          <td class="paramname"><em>bitRevLen</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint16_t *&#160;</td>
          <td class="paramname"><em>pBitRevTab</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to in-place buffer of unknown 32-bit data type </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">bitRevLen</td><td>bit reversal table length </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">pBitRevTab</td><td>points to bit reversal table </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>

</div>
</div>
<a class="anchor" id="ae99e2b173033e9910058869bdf0619d9"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void arm_cfft_radix8by2_f32 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structarm__cfft__instance__f32.html">arm_cfft_instance_f32</a> *&#160;</td>
          <td class="paramname"><em>S</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
          <td class="paramname"><em>p1</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="a4bb346f59bca06cebe0defc8e15b69a6"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void arm_cfft_radix8by4_f32 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="structarm__cfft__instance__f32.html">arm_cfft_instance_f32</a> *&#160;</td>
          <td class="paramname"><em>S</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
          <td class="paramname"><em>p1</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="a72350c6eaa1eef8796ab43c1497c6b9c"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void arm_radix8_butterfly_f32 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
          <td class="paramname"><em>pSrc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint16_t&#160;</td>
          <td class="paramname"><em>fftLen</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *&#160;</td>
          <td class="paramname"><em>pCoef</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint16_t&#160;</td>
          <td class="paramname"><em>twidCoefModifier</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>brief Core function for the floating-point CFFT butterfly process. param[in,out] pSrc points to the in-place buffer of floating-point data type. param[in] fftLen length of the FFT. param[in] pCoef points to the twiddle coefficient buffer. param[in] twidCoefModifier twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. return none </p>

</div>
</div>
</div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    <li class="navelem"><a class="el" href="dir_650d82db24a6311fa7658fced19ae149.html">DSP</a></li><li class="navelem"><a class="el" href="dir_cf3b734d050ceea02fbfb06f215bbc8f.html">Source</a></li><li class="navelem"><a class="el" href="dir_f93595924be31e3058e32faa649f9f3e.html">TransformFunctions</a></li><li class="navelem"><a class="el" href="arm__cfft__f32_8c.html">arm_cfft_f32.c</a></li>
    <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.
	<!--
    <a href="http://www.doxygen.org/index.html">
    <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.6 
	-->
	</li>
  </ul>
</div>
</body>
</html>