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diff --git a/CMSIS/Documentation/DSP/html/arm_linear_interp_example_f32_8c-example.html b/CMSIS/Documentation/DSP/html/arm_linear_interp_example_f32_8c-example.html new file mode 100644 index 0000000..3501864 --- /dev/null +++ b/CMSIS/Documentation/DSP/html/arm_linear_interp_example_f32_8c-example.html @@ -0,0 +1,287 @@ +<!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_linear_interp_example_f32.c</title> +<title>CMSIS-DSP: arm_linear_interp_example_f32.c</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); +</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> +<link href="stylsheetf" rel="stylesheet" type="text/css" /> +</head> +<body> +<div id="top"><!-- do not remove this div, it is closed by doxygen! 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All rights reserved.</span></div> +<div class="line"><span class="comment">*</span></div> +<div class="line"><span class="comment">* $Date: 17. January 2013</span></div> +<div class="line"><span class="comment">* $Revision: V1.4.0</span></div> +<div class="line"><span class="comment">*</span></div> +<div class="line"><span class="comment">* Project: CMSIS DSP Library</span></div> +<div class="line"><span class="comment">* Title: arm_linear_interp_example_f32.c</span></div> +<div class="line"><span class="comment">*</span></div> +<div class="line"><span class="comment">* Description: Example code demonstrating usage of sin function</span></div> +<div class="line"><span class="comment">* and uses linear interpolation to get higher precision</span></div> +<div class="line"><span class="comment">*</span></div> +<div class="line"><span class="comment">* Target Processor: Cortex-M4/Cortex-M3</span></div> +<div class="line"><span class="comment">*</span></div> +<div class="line"><span class="comment">* Redistribution and use in source and binary forms, with or without</span></div> +<div class="line"><span class="comment">* modification, are permitted provided that the following conditions</span></div> +<div class="line"><span class="comment">* are met:</span></div> +<div class="line"><span class="comment">* - Redistributions of source code must retain the above copyright</span></div> +<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer.</span></div> +<div class="line"><span class="comment">* - Redistributions in binary form must reproduce the above copyright</span></div> +<div class="line"><span class="comment">* notice, this list of conditions and the following disclaimer in</span></div> +<div class="line"><span class="comment">* the documentation and/or other materials provided with the</span></div> +<div class="line"><span class="comment">* distribution.</span></div> +<div class="line"><span class="comment">* - Neither the name of ARM LIMITED nor the names of its contributors</span></div> +<div class="line"><span class="comment">* may be used to endorse or promote products derived from this</span></div> +<div class="line"><span class="comment">* software without specific prior written permission.</span></div> +<div class="line"><span class="comment">*</span></div> +<div class="line"><span class="comment">* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div> +<div class="line"><span class="comment">* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div> +<div class="line"><span class="comment">* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div> +<div class="line"><span class="comment">* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE</span></div> +<div class="line"><span class="comment">* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,</span></div> +<div class="line"><span class="comment">* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,</span></div> +<div class="line"><span class="comment">* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div> +<div class="line"><span class="comment">* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span></div> +<div class="line"><span class="comment">* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div> +<div class="line"><span class="comment">* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN</span></div> +<div class="line"><span class="comment">* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div> +<div class="line"><span class="comment">* POSSIBILITY OF SUCH DAMAGE.</span></div> +<div class="line"><span class="comment"> * -------------------------------------------------------------------- */</span></div> +<div class="line"></div> +<div class="line"></div> +<div class="line"><span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span></div> +<div class="line"><span class="preprocessor">#include "math_helper.h"</span></div> +<div class="line"></div> +<div class="line"><span class="preprocessor">#define SNR_THRESHOLD 90</span></div> +<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define TEST_LENGTH_SAMPLES 10</span></div> +<div class="line"><span class="preprocessor"></span><span class="preprocessor">#define XSPACING (0.00005f)</span></div> +<div class="line"><span class="preprocessor"></span></div> +<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div> +<div class="line"><span class="comment">* Test input data for F32 SIN function</span></div> +<div class="line"><span class="comment">* Generated by the MATLAB rand() function</span></div> +<div class="line"><span class="comment">* randn('state', 0)</span></div> +<div class="line"><span class="comment">* xi = (((1/4.18318581819710)* randn(blockSize, 1) * 2* pi));</span></div> +<div class="line"><span class="comment">* --------------------------------------------------------------------*/</span></div> +<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a0"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a4be0c4d25e63ce04b8cc8ad070805287">testInputSin_f32</a>[<a name="a1"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>] =</div> +<div class="line">{</div> +<div class="line"> -0.649716504673081170, -2.501723745497831200,</div> +<div class="line"> 0.188250329003310100, 0.432092748487532540,</div> +<div class="line"> -1.722010988459680800, 1.788766476323060600,</div> +<div class="line"> 1.786136060975809500, -0.056525543169408797,</div> +<div class="line"> 0.491596272728153760, 0.262309671126153390</div> +<div class="line">};</div> +<div class="line"></div> +<div class="line"><span class="comment">/*------------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment">* Reference out of SIN F32 function for Block Size = 10</span></div> +<div class="line"><span class="comment">* Calculated from sin(testInputSin_f32)</span></div> +<div class="line"><span class="comment">*------------------------------------------------------------------------------*/</span></div> +<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a2"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a5a33218d422603f3e5267b6984bdddd1">testRefSinOutput32_f32</a>[<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>] =</div> +<div class="line">{</div> +<div class="line"> -0.604960695383043530, -0.597090287967934840,</div> +<div class="line"> 0.187140422442966500, 0.418772124875992690,</div> +<div class="line"> -0.988588831792106880, 0.976338412038794010,</div> +<div class="line"> 0.976903856413481100, -0.056495446835214236,</div> +<div class="line"> 0.472033731854734240, 0.259311907228582830</div> +<div class="line">};</div> +<div class="line"></div> +<div class="line"><span class="comment">/*------------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment">* Method 1: Test out Buffer Calculated from Cubic Interpolation</span></div> +<div class="line"><span class="comment">*------------------------------------------------------------------------------*/</span></div> +<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a3"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div> +<div class="line"></div> +<div class="line"><span class="comment">/*------------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment">* Method 2: Test out buffer Calculated from Linear Interpolation</span></div> +<div class="line"><span class="comment">*------------------------------------------------------------------------------*/</span></div> +<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a4"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a8ca7d0ad6e04efed464bcaacedacf925">testLinIntOutput</a>[<a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>];</div> +<div class="line"></div> +<div class="line"><span class="comment">/*------------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment">* External table used for linear interpolation</span></div> +<div class="line"><span class="comment">*------------------------------------------------------------------------------*/</span></div> +<div class="line"><span class="keyword">extern</span> <span class="keywordtype">float</span> <a name="a5"></a><a class="code" href="arm__linear__interp__data_8c.html#a1a5a6c95f39221fcf8129fe478f54696">arm_linear_interep_table</a>[188495];</div> +<div class="line"></div> +<div class="line"><span class="comment">/* ----------------------------------------------------------------------</span></div> +<div class="line"><span class="comment">* Global Variables for caluclating SNR's for Method1 & Method 2</span></div> +<div class="line"><span class="comment">* ------------------------------------------------------------------- */</span></div> +<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a6"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#ad492c21cf2dd4e9199ae46c77f812cbc">snr1</a>;</div> +<div class="line"><a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a name="a7"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a269948ab25f230d33e3f22eab85aa1cf">snr2</a>;</div> +<div class="line"></div> +<div class="line"><span class="comment">/* ----------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment">* Calculation of Sine values from Cubic Interpolation and Linear interpolation</span></div> +<div class="line"><span class="comment">* ---------------------------------------------------------------------------- */</span></div> +<div class="line">int32_t <a name="a8"></a><a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#a196718f834091385d38586a0ce4009dc">main</a>(<span class="keywordtype">void</span>)</div> +<div class="line">{</div> +<div class="line"> uint32_t i;</div> +<div class="line"> <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6" title="Error status returned by some functions in the library.">arm_status</a> <a name="a9"></a><a class="code" href="_a_r_m_2arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;</div> +<div class="line"></div> +<div class="line"> <a name="_a10"></a><a class="code" href="structarm__linear__interp__instance__f32.html" title="Instance structure for the floating-point Linear Interpolate function.">arm_linear_interp_instance_f32</a> S = {188495, -3.141592653589793238, <a name="a11"></a><a class="code" href="arm__linear__interp__example__f32_8c.html#a0ecae49cebd837aac53411c8f877503d">XSPACING</a>, &<a class="code" href="arm__linear__interp__data_8c.html#a1a5a6c95f39221fcf8129fe478f54696">arm_linear_interep_table</a>[0]};</div> +<div class="line"></div> +<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment"> * Method 1: Test out Calculated from Cubic Interpolation</span></div> +<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div> +<div class="line"> <span class="keywordflow">for</span>(i=0; i< <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>; i++)</div> +<div class="line"> {</div> +<div class="line"> <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[i] = <a name="a12"></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__linear__interp__example__f32_8c.html#a4be0c4d25e63ce04b8cc8ad070805287">testInputSin_f32</a>[i]);</div> +<div class="line"> }</div> +<div class="line"></div> +<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment"> * Method 2: Test out Calculated from Cubic Interpolation and Linear interpolation</span></div> +<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div> +<div class="line"></div> +<div class="line"> <span class="keywordflow">for</span>(i=0; i< <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#abc004a7fade488e72310fd96c0a101dc">TEST_LENGTH_SAMPLES</a>; i++)</div> +<div class="line"> {</div> +<div class="line"> <a class="code" href="arm__linear__interp__example__f32_8c.html#a8ca7d0ad6e04efed464bcaacedacf925">testLinIntOutput</a>[i] = <a name="a13"></a><a class="code" href="group___linear_interpolate.html#ga2269263d810cafcd19681957b37d5cf6" title="Process function for the floating-point Linear Interpolation Function.">arm_linear_interp_f32</a>(&S, <a class="code" href="arm__linear__interp__example__f32_8c.html#a4be0c4d25e63ce04b8cc8ad070805287">testInputSin_f32</a>[i]);</div> +<div class="line"> }</div> +<div class="line"></div> +<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment"> * SNR calculation for method 1</span></div> +<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div> +<div class="line"> <a class="code" href="arm__linear__interp__example__f32_8c.html#ad492c21cf2dd4e9199ae46c77f812cbc">snr1</a> = <a name="a14"></a><a class="code" href="arm__convolution__example_2_a_r_m_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab" title="Caluclation of SNR.">arm_snr_f32</a>(<a class="code" href="arm__linear__interp__example__f32_8c.html#a5a33218d422603f3e5267b6984bdddd1">testRefSinOutput32_f32</a>, <a class="code" href="_a_r_m_2arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, 2);</div> +<div class="line"></div> +<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment"> * SNR calculation for method 2</span></div> +<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div> +<div class="line"> <a class="code" href="arm__linear__interp__example__f32_8c.html#a269948ab25f230d33e3f22eab85aa1cf">snr2</a> = <a class="code" href="arm__convolution__example_2_a_r_m_2math__helper_8c.html#aeea2952e70a1040a6efa555564bbeeab" title="Caluclation of SNR.">arm_snr_f32</a>(<a class="code" href="arm__linear__interp__example__f32_8c.html#a5a33218d422603f3e5267b6984bdddd1">testRefSinOutput32_f32</a>, <a class="code" href="arm__linear__interp__example__f32_8c.html#a8ca7d0ad6e04efed464bcaacedacf925">testLinIntOutput</a>, 2);</div> +<div class="line"></div> +<div class="line"> <span class="comment">/*------------------------------------------------------------------------------</span></div> +<div class="line"><span class="comment"> * Initialise status depending on SNR calculations</span></div> +<div class="line"><span class="comment"> *------------------------------------------------------------------------------*/</span></div> +<div class="line"> <span class="keywordflow">if</span>( <a class="code" href="arm__linear__interp__example__f32_8c.html#a269948ab25f230d33e3f22eab85aa1cf">snr2</a> > <a class="code" href="arm__linear__interp__example__f32_8c.html#ad492c21cf2dd4e9199ae46c77f812cbc">snr1</a>)</div> +<div class="line"> {</div> +<div class="line"> status = <a name="a15"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;</div> +<div class="line"> }</div> +<div class="line"> <span class="keywordflow">else</span></div> +<div class="line"> {</div> +<div class="line"> status = <a name="a16"></a><a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;</div> +<div class="line"> }</div> +<div class="line"></div> +<div class="line"> <span class="comment">/* ----------------------------------------------------------------------</span></div> +<div class="line"><span class="comment"> ** Loop here if the signals fail the PASS check.</span></div> +<div class="line"><span class="comment"> ** This denotes a test failure</span></div> +<div class="line"><span class="comment"> ** ------------------------------------------------------------------- */</span></div> +<div class="line"> <span class="keywordflow">if</span>( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)</div> +<div class="line"> {</div> +<div class="line"> <span class="keywordflow">while</span>(1);</div> +<div class="line"> }</div> +<div class="line"></div> +<div class="line"> <span class="keywordflow">while</span>(1); <span class="comment">/* main function does not return */</span></div> +<div class="line">}</div> +<div class="line"></div> +</div><!-- fragment --> </div><!-- contents --> +</div><!-- doc-content --> +<!-- start footer part --> +<div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> + <ul> + <li class="footer">Generated on Tue Oct 27 2015 14:35:30 for CMSIS-DSP by ARM Ltd. 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