264 lines
14 KiB
HTML
264 lines
14 KiB
HTML
<!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_rfft_instance_q31 Struct Reference</title>
|
|
<title>CMSIS-DSP: arm_rfft_instance_q31 Struct 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
|
|
 <span id="projectnumber">Version 1.5.1</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 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 id="navrow2" class="tabs2">
|
|
<ul class="tablist">
|
|
<li><a href="annotated.html"><span>Data Structures</span></a></li>
|
|
<li><a href="functions.html"><span>Data Fields</span></a></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('structarm__rfft__instance__q31.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="summary">
|
|
<a href="#pub-attribs">Data Fields</a> </div>
|
|
<div class="headertitle">
|
|
<div class="title">arm_rfft_instance_q31 Struct Reference</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
|
|
<p>Instance structure for the Q31 RFFT/RIFFT function.
|
|
</p>
|
|
<table class="memberdecls">
|
|
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
|
|
Data Fields</h2></td></tr>
|
|
<tr class="memitem:af777b0cadd5abaf064323692c2e6693b"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__q31.html#af777b0cadd5abaf064323692c2e6693b">fftLenReal</a></td></tr>
|
|
<tr class="separator:af777b0cadd5abaf064323692c2e6693b"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:af5c2615e6cde15524df38fa57ea32d94"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__q31.html#af5c2615e6cde15524df38fa57ea32d94">ifftFlagR</a></td></tr>
|
|
<tr class="separator:af5c2615e6cde15524df38fa57ea32d94"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:a3cb90cdc928a88b0203917dcb3dc1b71"><td class="memItemLeft" align="right" valign="top">uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__q31.html#a3cb90cdc928a88b0203917dcb3dc1b71">bitReverseFlagR</a></td></tr>
|
|
<tr class="separator:a3cb90cdc928a88b0203917dcb3dc1b71"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:a6fc90252b579f7c29e01bd279334fc43"><td class="memItemLeft" align="right" valign="top">uint32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__q31.html#a6fc90252b579f7c29e01bd279334fc43">twidCoefRModifier</a></td></tr>
|
|
<tr class="separator:a6fc90252b579f7c29e01bd279334fc43"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:a2a0c944e66bab92fcbe19d1c29153250"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__q31.html#a2a0c944e66bab92fcbe19d1c29153250">pTwiddleAReal</a></td></tr>
|
|
<tr class="separator:a2a0c944e66bab92fcbe19d1c29153250"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:ae5070be4c2e0327e618f5e1f4c5b9d80"><td class="memItemLeft" align="right" valign="top"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__q31.html#ae5070be4c2e0327e618f5e1f4c5b9d80">pTwiddleBReal</a></td></tr>
|
|
<tr class="separator:ae5070be4c2e0327e618f5e1f4c5b9d80"><td class="memSeparator" colspan="2"> </td></tr>
|
|
<tr class="memitem:a8fe10d425b59e096c23aa4bb5caa1974"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="structarm__cfft__instance__q31.html">arm_cfft_instance_q31</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structarm__rfft__instance__q31.html#a8fe10d425b59e096c23aa4bb5caa1974">pCfft</a></td></tr>
|
|
<tr class="separator:a8fe10d425b59e096c23aa4bb5caa1974"><td class="memSeparator" colspan="2"> </td></tr>
|
|
</table>
|
|
<h2 class="groupheader">Field Documentation</h2>
|
|
<a class="anchor" id="a3cb90cdc928a88b0203917dcb3dc1b71"></a>
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">uint8_t arm_rfft_instance_q31::bitReverseFlagR</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<p>flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. </p>
|
|
|
|
<p>Referenced by <a class="el" href="group__RealFFT.html#ga5abde938abbe72e95c5bab080eb33c45">arm_rfft_init_q31()</a>, and <a class="el" href="group__RealFFT.html#gabaeab5646aeea9844e6d42ca8c73fe3a">arm_rfft_q31()</a>.</p>
|
|
|
|
</div>
|
|
</div>
|
|
<a class="anchor" id="af777b0cadd5abaf064323692c2e6693b"></a>
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">uint32_t arm_rfft_instance_q31::fftLenReal</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<p>length of the real FFT. </p>
|
|
|
|
<p>Referenced by <a class="el" href="group__RealFFT.html#ga5abde938abbe72e95c5bab080eb33c45">arm_rfft_init_q31()</a>, and <a class="el" href="group__RealFFT.html#gabaeab5646aeea9844e6d42ca8c73fe3a">arm_rfft_q31()</a>.</p>
|
|
|
|
</div>
|
|
</div>
|
|
<a class="anchor" id="af5c2615e6cde15524df38fa57ea32d94"></a>
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">uint8_t arm_rfft_instance_q31::ifftFlagR</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<p>flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. </p>
|
|
|
|
<p>Referenced by <a class="el" href="group__RealFFT.html#ga5abde938abbe72e95c5bab080eb33c45">arm_rfft_init_q31()</a>, and <a class="el" href="group__RealFFT.html#gabaeab5646aeea9844e6d42ca8c73fe3a">arm_rfft_q31()</a>.</p>
|
|
|
|
</div>
|
|
</div>
|
|
<a class="anchor" id="a8fe10d425b59e096c23aa4bb5caa1974"></a>
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">const <a class="el" href="structarm__cfft__instance__q31.html">arm_cfft_instance_q31</a>* arm_rfft_instance_q31::pCfft</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<p>points to the complex FFT instance. </p>
|
|
|
|
<p>Referenced by <a class="el" href="group__RealFFT.html#ga5abde938abbe72e95c5bab080eb33c45">arm_rfft_init_q31()</a>, and <a class="el" href="group__RealFFT.html#gabaeab5646aeea9844e6d42ca8c73fe3a">arm_rfft_q31()</a>.</p>
|
|
|
|
</div>
|
|
</div>
|
|
<a class="anchor" id="a2a0c944e66bab92fcbe19d1c29153250"></a>
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a>* arm_rfft_instance_q31::pTwiddleAReal</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<p>points to the real twiddle factor table. </p>
|
|
|
|
<p>Referenced by <a class="el" href="group__RealFFT.html#ga5abde938abbe72e95c5bab080eb33c45">arm_rfft_init_q31()</a>, and <a class="el" href="group__RealFFT.html#gabaeab5646aeea9844e6d42ca8c73fe3a">arm_rfft_q31()</a>.</p>
|
|
|
|
</div>
|
|
</div>
|
|
<a class="anchor" id="ae5070be4c2e0327e618f5e1f4c5b9d80"></a>
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname"><a class="el" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a>* arm_rfft_instance_q31::pTwiddleBReal</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<p>points to the imag twiddle factor table. </p>
|
|
|
|
<p>Referenced by <a class="el" href="group__RealFFT.html#ga5abde938abbe72e95c5bab080eb33c45">arm_rfft_init_q31()</a>, and <a class="el" href="group__RealFFT.html#gabaeab5646aeea9844e6d42ca8c73fe3a">arm_rfft_q31()</a>.</p>
|
|
|
|
</div>
|
|
</div>
|
|
<a class="anchor" id="a6fc90252b579f7c29e01bd279334fc43"></a>
|
|
<div class="memitem">
|
|
<div class="memproto">
|
|
<table class="memname">
|
|
<tr>
|
|
<td class="memname">uint32_t arm_rfft_instance_q31::twidCoefRModifier</td>
|
|
</tr>
|
|
</table>
|
|
</div><div class="memdoc">
|
|
<p>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </p>
|
|
|
|
<p>Referenced by <a class="el" href="group__RealFFT.html#ga5abde938abbe72e95c5bab080eb33c45">arm_rfft_init_q31()</a>, and <a class="el" href="group__RealFFT.html#gabaeab5646aeea9844e6d42ca8c73fe3a">arm_rfft_q31()</a>.</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="structarm__rfft__instance__q31.html">arm_rfft_instance_q31</a></li>
|
|
<li class="footer">Generated on Wed Feb 8 2017 10:20:52 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> 1.8.6
|
|
-->
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
</body>
|
|
</html>
|