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author | Ali Labbene <ali.labbene@st.com> | 2019-12-09 11:25:19 +0100 |
---|---|---|
committer | Ali Labbene <ali.labbene@st.com> | 2019-12-10 16:34:57 +0100 |
commit | 76177aa280494bb36d7a0bcbda1078d4db717020 (patch) | |
tree | 1046b1d15478b732a6398bd810a314d2eef1d6f1 /Documentation/DSP/html/arm__cfft__q15_8c.html | |
parent | c2b2a927a229ee06e25ebc085d62ce0985dc0ee4 (diff) | |
download | st-cmsis-core-lowfat-76177aa280494bb36d7a0bcbda1078d4db717020.tar.gz st-cmsis-core-lowfat-76177aa280494bb36d7a0bcbda1078d4db717020.tar.bz2 st-cmsis-core-lowfat-76177aa280494bb36d7a0bcbda1078d4db717020.zip |
Official ARM version: v4.5
Diffstat (limited to 'Documentation/DSP/html/arm__cfft__q15_8c.html')
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1 files changed, 363 insertions, 0 deletions
diff --git a/Documentation/DSP/html/arm__cfft__q15_8c.html b/Documentation/DSP/html/arm__cfft__q15_8c.html new file mode 100644 index 0000000..2ce3507 --- /dev/null +++ b/Documentation/DSP/html/arm__cfft__q15_8c.html @@ -0,0 +1,363 @@ +<!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_q15.c File Reference</title> +<title>CMSIS-DSP: arm_cfft_q15.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" 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class="groupheader"><a name="func-members"></a> +Functions</h2></td></tr> +<tr class="memitem:abf1a2f9aa9f44ad5da1f0dbae8b54f2f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#abf1a2f9aa9f44ad5da1f0dbae8b54f2f">arm_radix4_butterfly_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pCoef, uint32_t twidCoefModifier)</td></tr> +<tr class="memdesc:abf1a2f9aa9f44ad5da1f0dbae8b54f2f"><td class="mdescLeft"> </td><td class="mdescRight">Core function for the Q15 CFFT butterfly process. <a href="#abf1a2f9aa9f44ad5da1f0dbae8b54f2f"></a><br/></td></tr> +<tr class="separator:abf1a2f9aa9f44ad5da1f0dbae8b54f2f"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a734ecff00f21a6a10e9ec437c8987eb1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#a734ecff00f21a6a10e9ec437c8987eb1">arm_radix4_butterfly_inverse_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pCoef, uint32_t twidCoefModifier)</td></tr> +<tr class="memdesc:a734ecff00f21a6a10e9ec437c8987eb1"><td class="mdescLeft"> </td><td class="mdescRight">Core function for the Q15 CIFFT butterfly process. <a href="#a734ecff00f21a6a10e9ec437c8987eb1"></a><br/></td></tr> +<tr class="separator:a734ecff00f21a6a10e9ec437c8987eb1"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a773957c278f4d9e728711f27e8a6e278"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#a773957c278f4d9e728711f27e8a6e278">arm_bitreversal_16</a> (uint16_t *pSrc, const uint16_t bitRevLen, const uint16_t *pBitRevTable)</td></tr> +<tr class="separator:a773957c278f4d9e728711f27e8a6e278"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:af1d4a751153857c173511e0c77ab4fa9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#af1d4a751153857c173511e0c77ab4fa9">arm_cfft_radix4by2_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pCoef)</td></tr> +<tr class="separator:af1d4a751153857c173511e0c77ab4fa9"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:abe669acc8db57d1fb9b1e2bba30f2224"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#abe669acc8db57d1fb9b1e2bba30f2224">arm_cfft_radix4by2_inverse_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pCoef)</td></tr> +<tr class="separator:abe669acc8db57d1fb9b1e2bba30f2224"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:ga68cdacd2267a2967955e40e6b7ec1229"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___complex_f_f_t.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> (const <a class="el" href="structarm__cfft__instance__q15.html">arm_cfft_instance_q15</a> *S, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *p1, uint8_t <a class="el" href="_g_c_c_2arm__fft__bin__example__f32_8c.html#a379ccb99013d369a41b49619083c16ef">ifftFlag</a>, uint8_t bitReverseFlag)</td></tr> +<tr class="memdesc:ga68cdacd2267a2967955e40e6b7ec1229"><td class="mdescLeft"> </td><td class="mdescRight">Processing function for the Q15 complex FFT. <a href="group___complex_f_f_t.html#ga68cdacd2267a2967955e40e6b7ec1229"></a><br/></td></tr> +<tr class="separator:ga68cdacd2267a2967955e40e6b7ec1229"><td class="memSeparator" colspan="2"> </td></tr> +</table> +<h2 class="groupheader">Function Documentation</h2> +<a class="anchor" id="a773957c278f4d9e728711f27e8a6e278"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">void arm_bitreversal_16 </td> + <td>(</td> + <td class="paramtype">uint16_t * </td> + <td class="paramname"><em>pSrc</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">const uint16_t </td> + <td class="paramname"><em>bitRevLen</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">const uint16_t * </td> + <td class="paramname"><em>pBitRevTable</em> </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> + +<p>Referenced by <a class="el" href="group___complex_f_f_t.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15()</a>.</p> + +</div> +</div> +<a class="anchor" id="abe669acc8db57d1fb9b1e2bba30f2224"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">void arm_cfft_radix4by2_inverse_q15 </td> + <td>(</td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pSrc</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint32_t </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#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pCoef</em> </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> + +<p>References <a class="el" href="arm__math_8h.html#af0d54ec57b936994a34f073d0049ea3f">_SIMD32_OFFSET</a>, and <a class="el" href="arm__cfft__q15_8c.html#a734ecff00f21a6a10e9ec437c8987eb1">arm_radix4_butterfly_inverse_q15()</a>.</p> + +<p>Referenced by <a class="el" href="group___complex_f_f_t.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15()</a>.</p> + +</div> +</div> +<a class="anchor" id="af1d4a751153857c173511e0c77ab4fa9"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">void arm_cfft_radix4by2_q15 </td> + <td>(</td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pSrc</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint32_t </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#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pCoef</em> </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> +<p>end of ComplexFFT group </p> + +<p>References <a class="el" href="arm__math_8h.html#af0d54ec57b936994a34f073d0049ea3f">_SIMD32_OFFSET</a>, and <a class="el" href="arm__cfft__q15_8c.html#abf1a2f9aa9f44ad5da1f0dbae8b54f2f">arm_radix4_butterfly_q15()</a>.</p> + +<p>Referenced by <a class="el" href="group___complex_f_f_t.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15()</a>.</p> + +</div> +</div> +<a class="anchor" id="a734ecff00f21a6a10e9ec437c8987eb1"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">void arm_radix4_butterfly_inverse_q15 </td> + <td>(</td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pSrc16</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint32_t </td> + <td class="paramname"><em>fftLen</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pCoef16</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint32_t </td> + <td class="paramname"><em>twidCoefModifier</em> </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">*pSrc16</td><td>points to the in-place buffer of Q15 data type. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">*pCoef16</td><td>points to twiddle coefficient buffer. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">twidCoefModifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>none. </dd></dl> + +<p>References <a class="el" href="arm__math_8h.html#a9de2e0a5785be82866bcb96012282248">__SIMD32</a>, and <a class="el" href="arm__math_8h.html#af0d54ec57b936994a34f073d0049ea3f">_SIMD32_OFFSET</a>.</p> + +<p>Referenced by <a class="el" href="group___complex_f_f_t.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15()</a>, <a class="el" href="group___complex_f_f_t.html#ga8d66cdac41b8bf6cefdb895456eee84a">arm_cfft_radix4_q15()</a>, and <a class="el" href="arm__cfft__q15_8c.html#abe669acc8db57d1fb9b1e2bba30f2224">arm_cfft_radix4by2_inverse_q15()</a>.</p> + +</div> +</div> +<a class="anchor" id="abf1a2f9aa9f44ad5da1f0dbae8b54f2f"></a> +<div class="memitem"> +<div class="memproto"> + <table class="memname"> + <tr> + <td class="memname">void arm_radix4_butterfly_q15 </td> + <td>(</td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pSrc16</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint32_t </td> + <td class="paramname"><em>fftLen</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td> + <td class="paramname"><em>pCoef16</em>, </td> + </tr> + <tr> + <td class="paramkey"></td> + <td></td> + <td class="paramtype">uint32_t </td> + <td class="paramname"><em>twidCoefModifier</em> </td> + </tr> + <tr> + <td></td> + <td>)</td> + <td></td><td></td> + </tr> + </table> +</div><div class="memdoc"> +<p>end of ComplexFFT group </p> +<dl class="params"><dt>Parameters</dt><dd> + <table class="params"> + <tr><td class="paramdir">[in,out]</td><td class="paramname">*pSrc16</td><td>points to the in-place buffer of Q15 data type. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">*pCoef16</td><td>points to twiddle coefficient buffer. </td></tr> + <tr><td class="paramdir">[in]</td><td class="paramname">twidCoefModifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </td></tr> + </table> + </dd> +</dl> +<dl class="section return"><dt>Returns</dt><dd>none. </dd></dl> + +<p>References <a class="el" href="arm__math_8h.html#a9de2e0a5785be82866bcb96012282248">__SIMD32</a>, and <a class="el" href="arm__math_8h.html#af0d54ec57b936994a34f073d0049ea3f">_SIMD32_OFFSET</a>.</p> + +<p>Referenced by <a class="el" href="group___complex_f_f_t.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15()</a>, <a class="el" href="group___complex_f_f_t.html#ga8d66cdac41b8bf6cefdb895456eee84a">arm_cfft_radix4_q15()</a>, and <a class="el" href="arm__cfft__q15_8c.html#af1d4a751153857c173511e0c77ab4fa9">arm_cfft_radix4by2_q15()</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="dir_be2d3df67661aefe0e3f0071a1d6f8f1.html">DSP_Lib</a></li><li class="navelem"><a class="el" href="dir_7e8aa87db1ad6b3d9b1f25792e7c5208.html">Source</a></li><li class="navelem"><a class="el" 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