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| <h1>arm_matrix_example_f32.c</h1> </div> |
| </div> |
| <div class="contents"> |
| <a href="arm__matrix__example__f32_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00002"></a>00002 <span class="comment">* Copyright (C) 2010 ARM Limited. All rights reserved. </span> |
| <a name="l00003"></a>00003 <span class="comment">* </span> |
| <a name="l00004"></a>00004 <span class="comment">* $Date: 29. November 2010 </span> |
| <a name="l00005"></a>00005 <span class="comment">* $Revision: V1.0.3</span> |
| <a name="l00006"></a>00006 <span class="comment">* </span> |
| <a name="l00007"></a>00007 <span class="comment">* Project: CMSIS DSP Library </span> |
| <a name="l00008"></a>00008 <span class="comment">* Title: arm_matrix_example_f32.c </span> |
| <a name="l00009"></a>00009 <span class="comment">* </span> |
| <a name="l00010"></a>00010 <span class="comment">* Description: Example code demonstrating least square fit to data </span> |
| <a name="l00011"></a>00011 <span class="comment">* using matrix functions </span> |
| <a name="l00012"></a>00012 <span class="comment">* </span> |
| <a name="l00013"></a>00013 <span class="comment">* Target Processor: Cortex-M4/Cortex-M3 </span> |
| <a name="l00014"></a>00014 <span class="comment">*</span> |
| <a name="l00015"></a>00015 <span class="comment">*</span> |
| <a name="l00016"></a>00016 <span class="comment">* Version 1.0.3 2010/11/29 </span> |
| <a name="l00017"></a>00017 <span class="comment">* Re-organized the CMSIS folders and updated documentation. </span> |
| <a name="l00018"></a>00018 <span class="comment">* </span> |
| <a name="l00019"></a>00019 <span class="comment">* Version 1.0.1 2010/10/05 KK </span> |
| <a name="l00020"></a>00020 <span class="comment">* Production release and review comments incorporated. </span> |
| <a name="l00021"></a>00021 <span class="comment">*</span> |
| <a name="l00022"></a>00022 <span class="comment">* Version 1.0.0 2010/09/20 KK</span> |
| <a name="l00023"></a>00023 <span class="comment">* Production release and review comments incorporated.</span> |
| <a name="l00024"></a>00024 <span class="comment">* ------------------------------------------------------------------- */</span> |
| <a name="l00025"></a>00025 |
| <a name="l00077"></a>00077 <span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span> |
| <a name="l00078"></a>00078 <span class="preprocessor">#include "math_helper.h"</span> |
| <a name="l00079"></a>00079 |
| <a name="l00080"></a><a class="code" href="arm__matrix__example__f32_8c.html#af08ec3fef897d77c6817638bf0e0c5c6">00080</a> <span class="preprocessor">#define SNR_THRESHOLD 90 </span> |
| <a name="l00081"></a>00081 <span class="preprocessor"></span> |
| <a name="l00082"></a>00082 <span class="comment">/* -------------------------------------------------------------------------------- </span> |
| <a name="l00083"></a>00083 <span class="comment">* Test input data(Cycles) taken from FIR Q15 module for differant cases of blockSize </span> |
| <a name="l00084"></a>00084 <span class="comment">* and tapSize </span> |
| <a name="l00085"></a>00085 <span class="comment">* --------------------------------------------------------------------------------- */</span> |
| <a name="l00086"></a>00086 |
| <a name="l00087"></a><a class="code" href="arm__matrix__example__f32_8c.html#a974d5f0aace6a99e29ca767907fb3b9f">00087</a> <span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__matrix__example__f32_8c.html#a974d5f0aace6a99e29ca767907fb3b9f">B_f32</a>[4] = |
| <a name="l00088"></a>00088 { |
| <a name="l00089"></a>00089 782.0, 7577.0, 470.0, 4505.0 |
| <a name="l00090"></a>00090 }; |
| <a name="l00091"></a>00091 |
| <a name="l00092"></a>00092 <span class="comment">/* -------------------------------------------------------------------------------- </span> |
| <a name="l00093"></a>00093 <span class="comment">* Formula to fit is C1 + C2 * numTaps + C3 * blockSize + C4 * numTaps * blockSize </span> |
| <a name="l00094"></a>00094 <span class="comment">* -------------------------------------------------------------------------------- */</span> |
| <a name="l00095"></a>00095 |
| <a name="l00096"></a><a class="code" href="arm__matrix__example__f32_8c.html#aed27b92d9847194d9dcce40cecf2b48a">00096</a> <span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__matrix__example__f32_8c.html#aed27b92d9847194d9dcce40cecf2b48a">A_f32</a>[16] = |
| <a name="l00097"></a>00097 { |
| <a name="l00098"></a>00098 <span class="comment">/* Const, numTaps, blockSize, numTaps*blockSize */</span> |
| <a name="l00099"></a>00099 1.0, 32.0, 4.0, 128.0, |
| <a name="l00100"></a>00100 1.0, 32.0, 64.0, 2048.0, |
| <a name="l00101"></a>00101 1.0, 16.0, 4.0, 64.0, |
| <a name="l00102"></a>00102 1.0, 16.0, 64.0, 1024.0, |
| <a name="l00103"></a>00103 }; |
| <a name="l00104"></a>00104 |
| <a name="l00105"></a>00105 |
| <a name="l00106"></a>00106 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00107"></a>00107 <span class="comment">* Temporary buffers for storing intermediate values </span> |
| <a name="l00108"></a>00108 <span class="comment">* ------------------------------------------------------------------- */</span> |
| <a name="l00109"></a>00109 <span class="comment">/* Transpose of A Buffer */</span> |
| <a name="l00110"></a><a class="code" href="arm__matrix__example__f32_8c.html#a46dc2aa6dfc692af7b4a1379d7329ccd">00110</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__matrix__example__f32_8c.html#a46dc2aa6dfc692af7b4a1379d7329ccd">AT_f32</a>[16]; |
| <a name="l00111"></a>00111 <span class="comment">/* (Transpose of A * A) Buffer */</span> |
| <a name="l00112"></a><a class="code" href="arm__matrix__example__f32_8c.html#a867497c6bf86014513bf2ad3551aa896">00112</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__matrix__example__f32_8c.html#a867497c6bf86014513bf2ad3551aa896">ATMA_f32</a>[16]; |
| <a name="l00113"></a>00113 <span class="comment">/* Inverse(Transpose of A * A) Buffer */</span> |
| <a name="l00114"></a><a class="code" href="arm__matrix__example__f32_8c.html#a44425c149c52b326a3b7a77676686f00">00114</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__matrix__example__f32_8c.html#a44425c149c52b326a3b7a77676686f00">ATMAI_f32</a>[16]; |
| <a name="l00115"></a>00115 <span class="comment">/* Test Output Buffer */</span> |
| <a name="l00116"></a><a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">00116</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">X_f32</a>[4]; |
| <a name="l00117"></a>00117 |
| <a name="l00118"></a>00118 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00119"></a>00119 <span class="comment">* Reference ouput buffer C1, C2, C3 and C4 taken from MATLAB </span> |
| <a name="l00120"></a>00120 <span class="comment">* ------------------------------------------------------------------- */</span> |
| <a name="l00121"></a><a class="code" href="arm__matrix__example__f32_8c.html#a6184758419722fa16bb883097c2f596b">00121</a> <span class="keyword">const</span> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__matrix__example__f32_8c.html#a6184758419722fa16bb883097c2f596b">xRef_f32</a>[4] = {73.0, 8.0, 21.25, 2.875}; |
| <a name="l00122"></a>00122 |
| <a name="l00123"></a><a class="code" href="arm__matrix__example__f32_8c.html#af06013f588a7003278de222913c9d819">00123</a> <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> <a class="code" href="arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a>; |
| <a name="l00124"></a>00124 |
| <a name="l00125"></a>00125 |
| <a name="l00126"></a>00126 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00127"></a>00127 <span class="comment">* Max magnitude FFT Bin test </span> |
| <a name="l00128"></a>00128 <span class="comment">* ------------------------------------------------------------------- */</span> |
| <a name="l00129"></a>00129 |
| <a name="l00130"></a><a class="code" href="arm__matrix__example__f32_8c.html#a52d2cba30e6946c95578be946ac12a65">00130</a> int32_t <a class="code" href="arm__class__marks__example__f32_8c.html#a196718f834091385d38586a0ce4009dc">main</a>(<span class="keywordtype">void</span>) |
| <a name="l00131"></a>00131 { |
| <a name="l00132"></a>00132 |
| <a name="l00133"></a>00133 <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> A; <span class="comment">/* Matrix A Instance */</span> |
| <a name="l00134"></a>00134 <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> AT; <span class="comment">/* Matrix AT(A transpose) instance */</span> |
| <a name="l00135"></a>00135 <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> ATMA; <span class="comment">/* Matrix ATMA( AT multiply with A) instance */</span> |
| <a name="l00136"></a>00136 <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> ATMAI; <span class="comment">/* Matrix ATMAI(Inverse of ATMA) instance */</span> |
| <a name="l00137"></a>00137 <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> B; <span class="comment">/* Matrix B instance */</span> |
| <a name="l00138"></a>00138 <a class="code" href="structarm__matrix__instance__f32.html" title="Instance structure for the floating-point matrix structure.">arm_matrix_instance_f32</a> X; <span class="comment">/* Matrix X(Unknown Matrix) instance */</span> |
| <a name="l00139"></a>00139 |
| <a name="l00140"></a>00140 uint32_t srcRows, srcColumns; <span class="comment">/* Temporary variables */</span> |
| <a name="l00141"></a>00141 <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6" title="Error status returned by some functions in the library.">arm_status</a> <a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>; |
| <a name="l00142"></a>00142 |
| <a name="l00143"></a>00143 <span class="comment">/* Initialise A Matrix Instance with numRows, numCols and data array(A_f32) */</span> |
| <a name="l00144"></a>00144 srcRows = 4; |
| <a name="l00145"></a>00145 srcColumns = 4; |
| <a name="l00146"></a>00146 <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&A, srcRows, srcColumns, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="arm__matrix__example__f32_8c.html#aed27b92d9847194d9dcce40cecf2b48a">A_f32</a>); |
| <a name="l00147"></a>00147 |
| <a name="l00148"></a>00148 <span class="comment">/* Initialise Matrix Instance AT with numRows, numCols and data array(AT_f32) */</span> |
| <a name="l00149"></a>00149 srcRows = 4; |
| <a name="l00150"></a>00150 srcColumns = 4; |
| <a name="l00151"></a>00151 <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&AT, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a46dc2aa6dfc692af7b4a1379d7329ccd">AT_f32</a>); |
| <a name="l00152"></a>00152 |
| <a name="l00153"></a>00153 <span class="comment">/* calculation of A transpose */</span> |
| <a name="l00154"></a>00154 status = <a class="code" href="group___matrix_trans.html#gad7dd9f108429da13d3864696ceeec789" title="Floating-point matrix transpose.">arm_mat_trans_f32</a>(&A, &AT); |
| <a name="l00155"></a>00155 |
| <a name="l00156"></a>00156 |
| <a name="l00157"></a>00157 <span class="comment">/* Initialise ATMA Matrix Instance with numRows, numCols and data array(ATMA_f32) */</span> |
| <a name="l00158"></a>00158 srcRows = 4; |
| <a name="l00159"></a>00159 srcColumns = 4; |
| <a name="l00160"></a>00160 <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&ATMA, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a867497c6bf86014513bf2ad3551aa896">ATMA_f32</a>); |
| <a name="l00161"></a>00161 |
| <a name="l00162"></a>00162 <span class="comment">/* calculation of AT Multiply with A */</span> |
| <a name="l00163"></a>00163 status = <a class="code" href="group___matrix_mult.html#ga917bf0270310c1d3f0eda1fc7c0026a0" title="Floating-point matrix multiplication.">arm_mat_mult_f32</a>(&AT, &A, &ATMA); |
| <a name="l00164"></a>00164 |
| <a name="l00165"></a>00165 <span class="comment">/* Initialise ATMAI Matrix Instance with numRows, numCols and data array(ATMAI_f32) */</span> |
| <a name="l00166"></a>00166 srcRows = 4; |
| <a name="l00167"></a>00167 srcColumns = 4; |
| <a name="l00168"></a>00168 <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&ATMAI, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a44425c149c52b326a3b7a77676686f00">ATMAI_f32</a>); |
| <a name="l00169"></a>00169 |
| <a name="l00170"></a>00170 <span class="comment">/* calculation of Inverse((Transpose(A) * A) */</span> |
| <a name="l00171"></a>00171 status = <a class="code" href="group___matrix_inv.html#ga542be7aabbf7a2297a4b62cf212910e3" title="Floating-point matrix inverse.">arm_mat_inverse_f32</a>(&ATMA, &ATMAI); |
| <a name="l00172"></a>00172 |
| <a name="l00173"></a>00173 <span class="comment">/* calculation of (Inverse((Transpose(A) * A)) * Transpose(A)) */</span> |
| <a name="l00174"></a>00174 status = <a class="code" href="group___matrix_mult.html#ga917bf0270310c1d3f0eda1fc7c0026a0" title="Floating-point matrix multiplication.">arm_mat_mult_f32</a>(&ATMAI, &AT, &ATMA); |
| <a name="l00175"></a>00175 |
| <a name="l00176"></a>00176 <span class="comment">/* Initialise B Matrix Instance with numRows, numCols and data array(B_f32) */</span> |
| <a name="l00177"></a>00177 srcRows = 4; |
| <a name="l00178"></a>00178 srcColumns = 1; |
| <a name="l00179"></a>00179 <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&B, srcRows, srcColumns, (<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="arm__matrix__example__f32_8c.html#a974d5f0aace6a99e29ca767907fb3b9f">B_f32</a>); |
| <a name="l00180"></a>00180 |
| <a name="l00181"></a>00181 <span class="comment">/* Initialise X Matrix Instance with numRows, numCols and data array(X_f32) */</span> |
| <a name="l00182"></a>00182 srcRows = 4; |
| <a name="l00183"></a>00183 srcColumns = 1; |
| <a name="l00184"></a>00184 <a class="code" href="group___matrix_init.html#ga11e3dc41592a6401c13182fef9416a27" title="Floating-point matrix initialization.">arm_mat_init_f32</a>(&X, srcRows, srcColumns, <a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">X_f32</a>); |
| <a name="l00185"></a>00185 |
| <a name="l00186"></a>00186 <span class="comment">/* calculation ((Inverse((Transpose(A) * A)) * Transpose(A)) * B) */</span> |
| <a name="l00187"></a>00187 status = <a class="code" href="group___matrix_mult.html#ga917bf0270310c1d3f0eda1fc7c0026a0" title="Floating-point matrix multiplication.">arm_mat_mult_f32</a>(&ATMA, &B, &X); |
| <a name="l00188"></a>00188 |
| <a name="l00189"></a>00189 <span class="comment">/* Comparison of reference with test output */</span> |
| <a name="l00190"></a>00190 <a class="code" href="arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> = arm_snr_f32((<a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *)<a class="code" href="arm__matrix__example__f32_8c.html#a6184758419722fa16bb883097c2f596b">xRef_f32</a>, <a class="code" href="arm__matrix__example__f32_8c.html#a98c67c0fc0cb5f2df51b21482d31d21c">X_f32</a>, 4); |
| <a name="l00191"></a>00191 |
| <a name="l00192"></a>00192 <span class="comment">/*------------------------------------------------------------------------------ </span> |
| <a name="l00193"></a>00193 <span class="comment"> * Initialise status depending on SNR calculations </span> |
| <a name="l00194"></a>00194 <span class="comment"> *------------------------------------------------------------------------------*/</span> |
| <a name="l00195"></a>00195 <span class="keywordflow">if</span>( <a class="code" href="arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> > <a class="code" href="arm__matrix__example__f32_8c.html#af08ec3fef897d77c6817638bf0e0c5c6">SNR_THRESHOLD</a>) |
| <a name="l00196"></a>00196 { |
| <a name="l00197"></a>00197 status = <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>; |
| <a name="l00198"></a>00198 } |
| <a name="l00199"></a>00199 <span class="keywordflow">else</span> |
| <a name="l00200"></a>00200 { |
| <a name="l00201"></a>00201 status = <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>; |
| <a name="l00202"></a>00202 } |
| <a name="l00203"></a>00203 |
| <a name="l00204"></a>00204 |
| <a name="l00205"></a>00205 <span class="comment">/* ---------------------------------------------------------------------- </span> |
| <a name="l00206"></a>00206 <span class="comment"> ** Loop here if the signals fail the PASS check. </span> |
| <a name="l00207"></a>00207 <span class="comment"> ** This denotes a test failure </span> |
| <a name="l00208"></a>00208 <span class="comment"> ** ------------------------------------------------------------------- */</span> |
| <a name="l00209"></a>00209 <span class="keywordflow">if</span>( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>) |
| <a name="l00210"></a>00210 { |
| <a name="l00211"></a>00211 <span class="keywordflow">while</span>(1); |
| <a name="l00212"></a>00212 } |
| <a name="l00213"></a>00213 } |
| <a name="l00214"></a>00214 |
| </pre></div></div> |
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