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49 <div class="headertitle">
50 <h1>arm_graphic_equalizer_example_q31.c</h1> </div>
52 <div class="contents">
53 <a href="arm__graphic__equalizer__example__q31_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>
54 <a name="l00002"></a>00002 <span class="comment">* Copyright (C) 2010 ARM Limited. All rights reserved. </span>
55 <a name="l00003"></a>00003 <span class="comment">* </span>
56 <a name="l00004"></a>00004 <span class="comment">* $Date: 29. November 2010 </span>
57 <a name="l00005"></a>00005 <span class="comment">* $Revision: V1.0.3 </span>
58 <a name="l00006"></a>00006 <span class="comment">* </span>
59 <a name="l00007"></a>00007 <span class="comment">* Project: CMSIS DSP Library </span>
60 <a name="l00008"></a>00008 <span class="comment">* Title: arm_graphic_equalizer_example_q31.c </span>
61 <a name="l00009"></a>00009 <span class="comment">* </span>
62 <a name="l00010"></a>00010 <span class="comment">* Description: Example showing an audio graphic equalizer constructed</span>
63 <a name="l00011"></a>00011 <span class="comment">* out of Biquad filters.</span>
64 <a name="l00012"></a>00012 <span class="comment">* </span>
65 <a name="l00013"></a>00013 <span class="comment">* Target Processor: Cortex-M4/Cortex-M3 </span>
66 <a name="l00014"></a>00014 <span class="comment">*</span>
67 <a name="l00015"></a>00015 <span class="comment">*</span>
68 <a name="l00016"></a>00016 <span class="comment">* Version 1.0.3 2010/11/29 </span>
69 <a name="l00017"></a>00017 <span class="comment">* Re-organized the CMSIS folders and updated documentation. </span>
70 <a name="l00018"></a>00018 <span class="comment">* </span>
71 <a name="l00019"></a>00019 <span class="comment">* Version 1.0.1 2010/10/05 KK </span>
72 <a name="l00020"></a>00020 <span class="comment">* Production release and review comments incorporated. </span>
73 <a name="l00021"></a>00021 <span class="comment">*</span>
74 <a name="l00022"></a>00022 <span class="comment">* Version 1.0.0 2010/09/20 KK</span>
75 <a name="l00023"></a>00023 <span class="comment">* Production release and review comments incorporated.</span>
76 <a name="l00024"></a>00024 <span class="comment">* ------------------------------------------------------------------- */</span>
77 <a name="l00025"></a>00025
78 <a name="l00113"></a>00113 <span class="preprocessor">#include "<a class="code" href="arm__math_8h.html">arm_math.h</a>"</span>
79 <a name="l00114"></a>00114 <span class="preprocessor">#include "math_helper.h"</span>
80 <a name="l00115"></a>00115
81 <a name="l00116"></a>00116 <span class="comment">/* Length of the overall data in the test */</span>
82 <a name="l00117"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4f4a95eaace4e7b4e2f5243ed24f6b28">00117</a> <span class="preprocessor">#define TESTLENGTH 320</span>
83 <a name="l00118"></a>00118 <span class="preprocessor"></span>
84 <a name="l00119"></a>00119 <span class="comment">/* Block size for the underlying processing */</span>
85 <a name="l00120"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">00120</a> <span class="preprocessor">#define BLOCKSIZE 32</span>
86 <a name="l00121"></a>00121 <span class="preprocessor"></span>
87 <a name="l00122"></a>00122 <span class="comment">/* Total number of blocks to run */</span>
88 <a name="l00123"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a814e34126e1b8150f4de047e1a9e7030">00123</a> <span class="preprocessor">#define NUMBLOCKS (TESTLENGTH/BLOCKSIZE)</span>
89 <a name="l00124"></a>00124 <span class="preprocessor"></span>
90 <a name="l00125"></a>00125 <span class="comment">/* Number of 2nd order Biquad stages per filter */</span>
91 <a name="l00126"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">00126</a> <span class="preprocessor">#define NUMSTAGES 2</span>
92 <a name="l00127"></a>00127 <span class="preprocessor"></span>
93 <a name="l00128"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af7d1dd4deffa8e7ed6429e5dd0fe1812">00128</a> <span class="preprocessor">#define SNR_THRESHOLD_F32 98</span>
94 <a name="l00129"></a>00129 <span class="preprocessor"></span>
95 <a name="l00130"></a>00130 <span class="comment">/* ------------------------------------------------------------------- </span>
96 <a name="l00131"></a>00131 <span class="comment"> * External Declarations for Input and Output buffers </span>
97 <a name="l00132"></a>00132 <span class="comment"> * ------------------------------------------------------------------- */</span>
98 <a name="l00133"></a>00133
99 <a name="l00134"></a>00134 <span class="keyword">extern</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__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4f4a95eaace4e7b4e2f5243ed24f6b28">TESTLENGTH</a>];
100 <a name="l00135"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a3293e83a154108a1d398bb042e293894">00135</a> <span class="keyword">static</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__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4f4a95eaace4e7b4e2f5243ed24f6b28">TESTLENGTH</a>];
101 <a name="l00136"></a>00136
102 <a name="l00137"></a>00137 <span class="keyword">extern</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__convolution__example__f32_8c.html#a6463f7327432fc62ad9f6017593330d3">testRefOutput_f32</a>[<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4f4a95eaace4e7b4e2f5243ed24f6b28">TESTLENGTH</a>];
103 <a name="l00138"></a>00138
104 <a name="l00139"></a>00139 <span class="comment">/* ---------------------------------------------------------------------- </span>
105 <a name="l00140"></a>00140 <span class="comment">** Q31 state buffers for Band1, Band2, Band3, Band4, Band5 </span>
106 <a name="l00141"></a>00141 <span class="comment">** ------------------------------------------------------------------- */</span>
107 <a name="l00142"></a>00142
108 <a name="l00143"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a8e7062fa3f8b5ed9849566d16270f4ec">00143</a> <span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a5aea1cb12fc02d9d44c8abf217eaa5c6" title="64-bit fractional data type in 1.63 format.">q63_t</a> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a8e7062fa3f8b5ed9849566d16270f4ec">biquadStateBand1Q31</a>[4 * 2];
109 <a name="l00144"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4a82090b15ebd0a45048d94f16131782">00144</a> <span class="keyword">static</span> <a class="code" href="arm__math_8h.html#a5aea1cb12fc02d9d44c8abf217eaa5c6" title="64-bit fractional data type in 1.63 format.">q63_t</a> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4a82090b15ebd0a45048d94f16131782">biquadStateBand2Q31</a>[4 * 2];
110 <a name="l00145"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#ad487a54340631b764952fccf599adc8a">00145</a> <span class="keyword">static</span> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#ad487a54340631b764952fccf599adc8a">biquadStateBand3Q31</a>[4 * 2];
111 <a name="l00146"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a122ed5f6d8665139fbe9424a073b3474">00146</a> <span class="keyword">static</span> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a122ed5f6d8665139fbe9424a073b3474">biquadStateBand4Q31</a>[4 * 2];
112 <a name="l00147"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af88658a8c5f87eeea26da30305921b59">00147</a> <span class="keyword">static</span> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af88658a8c5f87eeea26da30305921b59">biquadStateBand5Q31</a>[4 * 2];
113 <a name="l00148"></a>00148
114 <a name="l00149"></a>00149 <span class="comment">/* ---------------------------------------------------------------------- </span>
115 <a name="l00150"></a>00150 <span class="comment">** Q31 input and output buffers </span>
116 <a name="l00151"></a>00151 <span class="comment">** ------------------------------------------------------------------- */</span>
117 <a name="l00152"></a>00152
118 <a name="l00153"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">00153</a> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>[<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];
119 <a name="l00154"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">00154</a> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>[<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>];
120 <a name="l00155"></a>00155
121 <a name="l00156"></a>00156 <span class="comment">/* ----------------------------------------------------------------------</span>
122 <a name="l00157"></a>00157 <span class="comment">** Entire coefficient table. There are 10 coefficients per 4th order Biquad</span>
123 <a name="l00158"></a>00158 <span class="comment">** cascade filter. The first 10 coefficients correspond to the -9 dB gain</span>
124 <a name="l00159"></a>00159 <span class="comment">** setting of band 1; the next 10 coefficient correspond to the -8 dB gain</span>
125 <a name="l00160"></a>00160 <span class="comment">** setting of band 1; and so on. There are 10*19=190 coefficients in total</span>
126 <a name="l00161"></a>00161 <span class="comment">** for band 1 (gains = -9, -8, -7, ..., 9). After this come the 190 coefficients</span>
127 <a name="l00162"></a>00162 <span class="comment">** for band 2.</span>
128 <a name="l00163"></a>00163 <span class="comment">**</span>
129 <a name="l00164"></a>00164 <span class="comment">** The coefficients are in Q29 format and require a postShift of 2.</span>
130 <a name="l00165"></a>00165 <span class="comment">** ------------------------------------------------------------------- */</span>
131 <a name="l00166"></a>00166
132 <a name="l00167"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">00167</a> <span class="keyword">const</span> <a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[950] = {
133 <a name="l00168"></a>00168
134 <a name="l00169"></a>00169 <span class="comment">/* Band 1, -9 dB gain */</span>
135 <a name="l00170"></a>00170 535576962, -1071153923, 535576962, 1073741824, -536870912, 535576962, -1063501998, 527979313, 1060865294, -524146981,
136 <a name="l00171"></a>00171 <span class="comment">/* Band 1, -8 dB gain */</span>
137 <a name="l00172"></a>00172 535723226, -1071446451, 535723226, 1073741824, -536870912, 535723226, -1063568947, 527903217, 1061230578, -524503778,
138 <a name="l00173"></a>00173 535868593, -1071737186, 535868593, 1073741824, -536870912, 535868593, -1063627467, 527819780, 1061585502, -524850686,
139 <a name="l00174"></a>00174 536013181, -1072026363, 536013181, 1073741824, -536870912, 536013181, -1063677598, 527728935, 1061930361, -525187972,
140 <a name="l00175"></a>00175 536157109, -1072314217, 536157109, 1073741824, -536870912, 536157109, -1063719372, 527630607, 1062265438, -525515897,
141 <a name="l00176"></a>00176 536300492, -1072600983, 536300492, 1073741824, -536870912, 536300492, -1063752815, 527524720, 1062591011, -525834716,
142 <a name="l00177"></a>00177 536443447, -1072886894, 536443447, 1073741824, -536870912, 536443447, -1063777945, 527411186, 1062907350, -526144676,
143 <a name="l00178"></a>00178 536586091, -1073172183, 536586091, 1073741824, -536870912, 536586091, -1063794775, 527289917, 1063214717, -526446017,
144 <a name="l00179"></a>00179 536728541, -1073457082, 536728541, 1073741824, -536870912, 536728541, -1063803308, 527160815, 1063513366, -526738975,
145 <a name="l00180"></a>00180 536870912, -1073741824, 536870912, 1073741824, -536870912, 536870912, -1063803543, 527023777, 1063803543, -527023777,
146 <a name="l00181"></a>00181 537013321, -1074026642, 537013321, 1073741824, -536870912, 537013321, -1063795470, 526878696, 1064085490, -527300648,
147 <a name="l00182"></a>00182 537155884, -1074311768, 537155884, 1073741824, -536870912, 537155884, -1063779073, 526725455, 1064359439, -527569803,
148 <a name="l00183"></a>00183 537298718, -1074597435, 537298718, 1073741824, -536870912, 537298718, -1063754328, 526563934, 1064625617, -527831454,
149 <a name="l00184"></a>00184 537441939, -1074883878, 537441939, 1073741824, -536870912, 537441939, -1063721205, 526394005, 1064884245, -528085806,
150 <a name="l00185"></a>00185 537585666, -1075171331, 537585666, 1073741824, -536870912, 537585666, -1063679666, 526215534, 1065135536, -528333059,
151 <a name="l00186"></a>00186 537730015, -1075460030, 537730015, 1073741824, -536870912, 537730015, -1063629666, 526028380, 1065379699, -528573409,
152 <a name="l00187"></a>00187 537875106, -1075750212, 537875106, 1073741824, -536870912, 537875106, -1063571152, 525832396, 1065616936, -528807045,
153 <a name="l00188"></a>00188 538021057, -1076042114, 538021057, 1073741824, -536870912, 538021057, -1063504065, 525627429, 1065847444, -529034151,
154 <a name="l00189"></a>00189 538167989, -1076335977, 538167989, 1073741824, -536870912, 538167989, -1063428338, 525413317, 1066071412, -529254907,
155 <a name="l00190"></a>00190
156 <a name="l00191"></a>00191 <span class="comment">/* Band 2, -9 dB gain */</span>
157 <a name="l00192"></a>00192 531784976, -1055497692, 523873415, 1066213307, -529420241, 531784976, -1040357886, 509828014, 1028908252, -494627367,
158 <a name="l00193"></a>00193 <span class="comment">/* Band 2, -8 dB gain */</span>
159 <a name="l00194"></a>00194 532357636, -1056601982, 524400080, 1066115844, -529326645, 532357636, -1040623406, 509562600, 1030462237, -496062122,
160 <a name="l00195"></a>00195 532927392, -1057707729, 524931110, 1066024274, -529239070, 532927392, -1040848253, 509262081, 1031969246, -497457090,
161 <a name="l00196"></a>00196 533494678, -1058816094, 525467240, 1065939047, -529157961, 533494678, -1041032161, 508925950, 1033429976, -498812573,
162 <a name="l00197"></a>00197 534059929, -1059928204, 526009170, 1065860582, -529083734, 534059929, -1041174868, 508553717, 1034845124, -500128887,
163 <a name="l00198"></a>00198 534623580, -1061045148, 526557561, 1065789260, -529016764, 534623580, -1041276126, 508144920, 1036215393, -501406373,
164 <a name="l00199"></a>00199 535186068, -1062167969, 527113032, 1065725420, -528957385, 535186068, -1041335703, 507699125, 1037541500, -502645399,
165 <a name="l00200"></a>00200 535747827, -1063297666, 527676151, 1065669351, -528905879, 535747827, -1041353386, 507215934, 1038824183, -503846368,
166 <a name="l00201"></a>00201 536309295, -1064435183, 528247436, 1065621289, -528862476, 536309295, -1041328990, 506694984, 1040064203, -505009724,
167 <a name="l00202"></a>00202 536870912, -1065581413, 528827349, 1065581413, -528827349, 536870912, -1041262354, 506135953, 1041262354, -506135953,
168 <a name="l00203"></a>00203 537433117, -1066737194, 529416295, 1065549847, -528800610, 537433117, -1041153346, 505538564, 1042419457, -507225588,
169 <a name="l00204"></a>00204 537996352, -1067903307, 530014622, 1065526651, -528782316, 537996352, -1041001864, 504902578, 1043536370, -508279208,
170 <a name="l00205"></a>00205 538561061, -1069080480, 530622620, 1065511830, -528772462, 538561061, -1040807833, 504227800, 1044613981, -509297437,
171 <a name="l00206"></a>00206 539127690, -1070269387, 531240527, 1065505333, -528770987, 539127690, -1040571205, 503514074, 1045653211, -510280946,
172 <a name="l00207"></a>00207 539696690, -1071470656, 531868525, 1065507054, -528777778, 539696690, -1040291951, 502761277, 1046655011, -511230450,
173 <a name="l00208"></a>00208 540268512, -1072684867, 532506750, 1065516837, -528792672, 540268512, -1039970063, 501969320, 1047620358, -512146700,
174 <a name="l00209"></a>00209 540843613, -1073912567, 533155297, 1065534483, -528815459, 540843613, -1039605542, 501138139, 1048550251, -513030484,
175 <a name="l00210"></a>00210 541422451, -1075154268, 533814224, 1065559750, -528845892, 541422451, -1039198394, 500267687, 1049445708, -513882621,
176 <a name="l00211"></a>00211 542005489, -1076410460, 534483561, 1065592362, -528883686, 542005489, -1038748624, 499357932, 1050307760, -514703956,
177 <a name="l00212"></a>00212 518903861, -1001986830, 486725277, 1037235801, -502367695, 518903861, -945834422, 446371043, 902366163, -400700571,
178 <a name="l00213"></a>00213 520899989, -1005630916, 488289126, 1036926846, -502147311, 520899989, -946490935, 445581846, 907921945, -404936158,
179 <a name="l00214"></a>00214 522893209, -1009290002, 489869792, 1036650484, -501961419, 522893209, -947006359, 444685310, 913306106, -409075225,
180 <a name="l00215"></a>00215 524884763, -1012968199, 491470256, 1036407567, -501810737, 524884763, -947377809, 443679533, 918521018, -413116221,
181 <a name="l00216"></a>00216 526875910, -1016669649, 493093518, 1036198712, -501695739, 526875910, -947602324, 442562672, 923569247, -417057897,
182 <a name="l00217"></a>00217 528867927, -1020398503, 494742575, 1036024293, -501616651, 528867927, -947676875, 441332970, 928453558, -420899319,
183 <a name="l00218"></a>00218 530862111, -1024158905, 496420407, 1035884447, -501573457, 530862111, -947598385, 439988777, 933176909, -424639872,
184 <a name="l00219"></a>00219 532859778, -1027954970, 498129955, 1035779077, -501565907, 532859778, -947363742, 438528571, 937742446, -428279254,
185 <a name="l00220"></a>00220 534862260, -1031790763, 499874098, 1035707863, -501593525, 534862260, -946969823, 436950987, 942153486, -431817474,
186 <a name="l00221"></a>00221 536870912, -1035670279, 501655630, 1035670279, -501655630, 536870912, -946413508, 435254839, 946413508, -435254839,
187 <a name="l00222"></a>00222 538887107, -1039597419, 503477238, 1035665609, -501751354, 538887107, -945691703, 433439146, 950526127, -438591937,
188 <a name="l00223"></a>00223 540912240, -1043575967, 505341475, 1035692963, -501879659, 540912240, -944801359, 431503152, 954495080, -441829621,
189 <a name="l00224"></a>00224 542947726, -1047609569, 507250741, 1035751307, -502039364, 542947726, -943739490, 429446349, 958324201, -444968987,
190 <a name="l00225"></a>00225 544995000, -1051701717, 509207261, 1035839473, -502229165, 544995000, -942503190, 427268492, 962017400, -448011351,
191 <a name="l00226"></a>00226 547055523, -1055855728, 511213065, 1035956193, -502447657, 547055523, -941089647, 424969617, 965578640, -450958226,
192 <a name="l00227"></a>00227 549130774, -1060074734, 513269973, 1036100110, -502693359, 549130774, -939496155, 422550049, 969011913, -453811298,
193 <a name="l00228"></a>00228 551222259, -1064361672, 515379585, 1036269804, -502964731, 551222259, -937720119, 420010407, 972321228, -456572401,
194 <a name="l00229"></a>00229 553331507, -1068719280, 517543273, 1036463810, -503260192, 553331507, -935759057, 417351601, 975510582, -459243495,
195 <a name="l00230"></a>00230 555460072, -1073150100, 519762181, 1036680633, -503578144, 555460072, -933610600, 414574832, 978583948, -461826644,
196 <a name="l00231"></a>00231 494084017, -851422604, 404056273, 930151631, -423619864, 494084017, -673714108, 339502486, 561843007, -265801750,
197 <a name="l00232"></a>00232 498713542, -859177141, 406587077, 929211656, -423786402, 498713542, -673274906, 338185129, 573719128, -272222942,
198 <a name="l00233"></a>00233 503369016, -867012190, 409148384, 928362985, -424054784, 503369016, -672533059, 336693984, 585290277, -278599028,
199 <a name="l00234"></a>00234 508052536, -874935599, 411746438, 927604291, -424422151, 508052536, -671478538, 335026905, 596558312, -284920289,
200 <a name="l00235"></a>00235 512766286, -882955583, 414387826, 926933782, -424885216, 512766286, -670100998, 333182045, 607525792, -291177811,
201 <a name="l00236"></a>00236 517512534, -891080712, 417079474, 926349262, -425440318, 517512534, -668389789, 331157902, 618195914, -297363485,
202 <a name="l00237"></a>00237 522293635, -899319903, 419828635, 925848177, -426083491, 522293635, -666333963, 328953368, 628572440, -303470012,
203 <a name="l00238"></a>00238 527112032, -907682405, 422642886, 925427679, -426810526, 527112032, -663922286, 326567785, 638659631, -309490882,
204 <a name="l00239"></a>00239 531970251, -916177781, 425530105, 925084675, -427617023, 531970251, -661143261, 324000998, 648462180, -315420352,
205 <a name="l00240"></a>00240 536870912, -924815881, 428498454, 924815881, -428498454, 536870912, -657985147, 321253420, 657985147, -321253420,
206 <a name="l00241"></a>00241 541816719, -933606817, 431556352, 924617870, -429450209, 541816719, -654435997, 318326093, 667233900, -326985786,
207 <a name="l00242"></a>00242 546810467, -942560921, 434712438, 924487114, -430467639, 546810467, -650483688, 315220754, 676214053, -332613816,
208 <a name="l00243"></a>00243 551855042, -951688708, 437975532, 924420027, -431546101, 551855042, -646115970, 311939896, 684931422, -338134495,
209 <a name="l00244"></a>00244 556953421, -961000826, 441354588, 924413001, -432680993, 556953421, -641320513, 308486839, 693391970, -343545389,
210 <a name="l00245"></a>00245 562108672, -970508005, 444858642, 924462435, -433867780, 562108672, -636084967, 304865786, 701601770, -348844597,
211 <a name="l00246"></a>00246 567323959, -980220994, 448496743, 924564764, -435102022, 567323959, -630397020, 301081886, 709566963, -354030710,
212 <a name="l00247"></a>00247 572602539, -990150500, 452277894, 924716482, -436379394, 572602539, -624244471, 297141281, 717293726, -359102767,
213 <a name="l00248"></a>00248 577947763, -1000307125, 456210977, 924914158, -437695705, 577947763, -617615296, 293051155, 724788245, -364060214,
214 <a name="l00249"></a>00249 583363084, -1010701292, 460304674, 925154455, -439046908, 583363084, -610497723, 288819761, 732056685, -368902865,
215 <a name="l00250"></a>00250 387379495, -506912469, 196933274, 840112184, -347208270, 387379495, 506912469, 196933274, -840112184, -347208270,
216 <a name="l00251"></a>00251 401658082, -532275898, 207149427, 833765363, -343175316, 401658082, 532275898, 207149427, -833765363, -343175316,
217 <a name="l00252"></a>00252 416472483, -558722695, 217902617, 827270154, -339107319, 416472483, 558722695, 217902617, -827270154, -339107319,
218 <a name="l00253"></a>00253 431841949, -586290861, 229212798, 820624988, -335007540, 431841949, 586290861, 229212798, -820624988, -335007540,
219 <a name="l00254"></a>00254 447786335, -615019650, 241100489, 813828443, -330879528, 447786335, 615019650, 241100489, -813828443, -330879528,
220 <a name="l00255"></a>00255 464326111, -644949597, 253586805, 806879270, -326727141, 464326111, 644949597, 253586805, -806879270, -326727141,
221 <a name="l00256"></a>00256 481482377, -676122557, 266693475, 799776409, -322554559, 481482377, 676122557, 266693475, -799776409, -322554559,
222 <a name="l00257"></a>00257 499276882, -708581728, 280442865, 792519013, -318366296, 499276882, 708581728, 280442865, -792519013, -318366296,
223 <a name="l00258"></a>00258 517732032, -742371685, 294857996, 785106465, -314167221, 517732032, 742371685, 294857996, -785106465, -314167221,
224 <a name="l00259"></a>00259 536870912, -777538408, 309962566, 777538408, -309962566, 536870912, 777538408, 309962566, -777538408, -309962566,
225 <a name="l00260"></a>00260 556717294, -814129313, 325780968, 769814766, -305757943, 556717294, 814129313, 325780968, -769814766, -305757943,
226 <a name="l00261"></a>00261 577295658, -852193284, 342338310, 761935777, -301559360, 577295658, 852193284, 342338310, -761935777, -301559360,
227 <a name="l00262"></a>00262 598631206, -891780698, 359660433, 753902014, -297373230, 598631206, 891780698, 359660433, -753902014, -297373230,
228 <a name="l00263"></a>00263 620749877, -932943463, 377773927, 745714425, -293206383, 620749877, 932943463, 377773927, -745714425, -293206383,
229 <a name="l00264"></a>00264 643678365, -975735041, 396706151, 737374355, -289066077, 643678365, 975735041, 396706151, -737374355, -289066077,
230 <a name="l00265"></a>00265 667444134, -1020210487, 416485252, 728883588, -284960004, 667444134, 1020210487, 416485252, -728883588, -284960004,
231 <a name="l00266"></a>00266 692075438, -1066426476, 437140179, 720244375, -280896294, 692075438, 1066426476, 437140179, -720244375, -280896294,
232 <a name="l00267"></a>00267 717601336, -1114441339, 458700704, 711459472, -276883515, 717601336, 1114441339, 458700704, -711459472, -276883515,
233 <a name="l00268"></a>00268 744051710, -1164315096, 481197437, 702532174, -272930673, 744051710, 1164315096, 481197437, -702532174, -272930673
234 <a name="l00269"></a>00269
235 <a name="l00270"></a>00270 };
236 <a name="l00271"></a>00271
237 <a name="l00272"></a>00272 <span class="comment">/* ----------------------------------------------------------------------</span>
238 <a name="l00273"></a>00273 <span class="comment">** Desired gains, in dB, per band</span>
239 <a name="l00274"></a>00274 <span class="comment">** ------------------------------------------------------------------- */</span>
240 <a name="l00275"></a>00275
241 <a name="l00276"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">00276</a> <span class="keywordtype">int</span> <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[5] = {0, -3, 6, 4, -6};
242 <a name="l00277"></a>00277
243 <a name="l00278"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af06013f588a7003278de222913c9d819">00278</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>;
244 <a name="l00279"></a>00279
245 <a name="l00280"></a>00280
246 <a name="l00281"></a>00281 <span class="comment">/* ---------------------------------------------------------------------- </span>
247 <a name="l00282"></a>00282 <span class="comment"> * Graphic equalizer Example </span>
248 <a name="l00283"></a>00283 <span class="comment"> * ------------------------------------------------------------------- */</span>
249 <a name="l00284"></a>00284
250 <a name="l00285"></a><a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a52d2cba30e6946c95578be946ac12a65">00285</a> int32_t <a class="code" href="arm__class__marks__example__f32_8c.html#a196718f834091385d38586a0ce4009dc">main</a>(<span class="keywordtype">void</span>)
251 <a name="l00286"></a>00286 {
252 <a name="l00287"></a>00287 <a class="code" href="arm__math_8h.html#a4611b605e45ab401f02cab15c5e38715" title="32-bit floating-point type definition.">float32_t</a> *inputF32, *outputF32;
253 <a name="l00288"></a>00288 <a class="code" href="structarm__biquad__cas__df1__32x64__ins__q31.html" title="Instance structure for the high precision Q31 Biquad cascade filter.">arm_biquad_cas_df1_32x64_ins_q31</a> S1;
254 <a name="l00289"></a>00289 <a class="code" href="structarm__biquad__cas__df1__32x64__ins__q31.html" title="Instance structure for the high precision Q31 Biquad cascade filter.">arm_biquad_cas_df1_32x64_ins_q31</a> S2;
255 <a name="l00290"></a>00290 <a class="code" href="structarm__biquad__casd__df1__inst__q31.html" title="Instance structure for the Q31 Biquad cascade filter.">arm_biquad_casd_df1_inst_q31</a> S3;
256 <a name="l00291"></a>00291 <a class="code" href="structarm__biquad__casd__df1__inst__q31.html" title="Instance structure for the Q31 Biquad cascade filter.">arm_biquad_casd_df1_inst_q31</a> S4;
257 <a name="l00292"></a>00292 <a class="code" href="structarm__biquad__casd__df1__inst__q31.html" title="Instance structure for the Q31 Biquad cascade filter.">arm_biquad_casd_df1_inst_q31</a> S5;
258 <a name="l00293"></a>00293 <span class="keywordtype">int</span> i;
259 <a name="l00294"></a>00294 int32_t <a class="code" href="arm__dotproduct__example__f32_8c.html#a88ccb294236ab22b00310c47164c53c3">status</a>;
260 <a name="l00295"></a>00295
261 <a name="l00296"></a>00296 inputF32 = &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#aa4699dc6ee05353c83e0be4e69f6ad05">testInput_f32</a>[0];
262 <a name="l00297"></a>00297 outputF32 = &<a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>[0];
263 <a name="l00298"></a>00298
264 <a name="l00299"></a>00299 <span class="comment">/* Initialize the state and coefficient buffers for all Biquad sections */</span>
265 <a name="l00300"></a>00300
266 <a name="l00301"></a>00301 <a class="code" href="group___biquad_cascade_d_f1__32x64.html#ga44900cecb8083afcaabf905ffcd656bb">arm_biquad_cas_df1_32x64_init_q31</a>(&S1, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,
267 <a name="l00302"></a>00302 (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*0 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[0] + 9)],
268 <a name="l00303"></a>00303 &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a8e7062fa3f8b5ed9849566d16270f4ec">biquadStateBand1Q31</a>[0], 2);
269 <a name="l00304"></a>00304
270 <a name="l00305"></a>00305 <a class="code" href="group___biquad_cascade_d_f1__32x64.html#ga44900cecb8083afcaabf905ffcd656bb">arm_biquad_cas_df1_32x64_init_q31</a>(&S2, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,
271 <a name="l00306"></a>00306 (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*1 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[1] + 9)],
272 <a name="l00307"></a>00307 &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4a82090b15ebd0a45048d94f16131782">biquadStateBand2Q31</a>[0], 2);
273 <a name="l00308"></a>00308
274 <a name="l00309"></a>00309 <a class="code" href="group___biquad_cascade_d_f1.html#gaf42a44f9b16d61e636418c83eefe577b" title="Initialization function for the Q31 Biquad cascade filter.">arm_biquad_cascade_df1_init_q31</a>(&S3, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,
275 <a name="l00310"></a>00310 (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*2 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[2] + 9)],
276 <a name="l00311"></a>00311 &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#ad487a54340631b764952fccf599adc8a">biquadStateBand3Q31</a>[0], 2);
277 <a name="l00312"></a>00312
278 <a name="l00313"></a>00313 <a class="code" href="group___biquad_cascade_d_f1.html#gaf42a44f9b16d61e636418c83eefe577b" title="Initialization function for the Q31 Biquad cascade filter.">arm_biquad_cascade_df1_init_q31</a>(&S4, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,
279 <a name="l00314"></a>00314 (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*3 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[3] + 9)],
280 <a name="l00315"></a>00315 &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a122ed5f6d8665139fbe9424a073b3474">biquadStateBand4Q31</a>[0], 2);
281 <a name="l00316"></a>00316
282 <a name="l00317"></a>00317 <a class="code" href="group___biquad_cascade_d_f1.html#gaf42a44f9b16d61e636418c83eefe577b" title="Initialization function for the Q31 Biquad cascade filter.">arm_biquad_cascade_df1_init_q31</a>(&S5, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a23f8e430b510dfdb3ebe53bffca0d864">NUMSTAGES</a>,
283 <a name="l00318"></a>00318 (<a class="code" href="arm__math_8h.html#adc89a3547f5324b7b3b95adec3806bc0" title="32-bit fractional data type in 1.31 format.">q31_t</a> *) &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a024c59772b9603698b898721c1e8204e">coeffTable</a>[190*4 + 10*(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a963aee85bb41a50fc943ac9048d123ab">gainDB</a>[4] + 9)],
284 <a name="l00319"></a>00319 &<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af88658a8c5f87eeea26da30305921b59">biquadStateBand5Q31</a>[0], 2);
285 <a name="l00320"></a>00320
286 <a name="l00321"></a>00321
287 <a name="l00322"></a>00322 <span class="comment">/* Call the process functions and needs to change filter coefficients </span>
288 <a name="l00323"></a>00323 <span class="comment"> for varying the gain of each band */</span>
289 <a name="l00324"></a>00324
290 <a name="l00325"></a>00325 <span class="keywordflow">for</span>(i=0; i < <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a814e34126e1b8150f4de047e1a9e7030">NUMBLOCKS</a>; i++)
291 <a name="l00326"></a>00326 {
292 <a name="l00327"></a>00327
293 <a name="l00328"></a>00328 <span class="comment">/* ---------------------------------------------------------------------- </span>
294 <a name="l00329"></a>00329 <span class="comment"> ** Convert block of input data from float to Q31 </span>
295 <a name="l00330"></a>00330 <span class="comment"> ** ------------------------------------------------------------------- */</span>
296 <a name="l00331"></a>00331
297 <a name="l00332"></a>00332 <a class="code" href="group__float__to__x.html#ga177704107f94564e9abe4daaa36f4554" title="Converts the elements of the floating-point vector to Q31 vector.">arm_float_to_q31</a>(inputF32 + (i*<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#afcf795f5a96fd55561abe69f56224630">BLOCKSIZE</a>), <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>, BLOCKSIZE);
298 <a name="l00333"></a>00333
299 <a name="l00334"></a>00334 <span class="comment">/* ----------------------------------------------------------------------</span>
300 <a name="l00335"></a>00335 <span class="comment"> ** Scale down by 1/8. This provides additional headroom so that the</span>
301 <a name="l00336"></a>00336 <span class="comment"> ** graphic EQ can apply gain.</span>
302 <a name="l00337"></a>00337 <span class="comment"> ** ------------------------------------------------------------------- */</span>
303 <a name="l00338"></a>00338
304 <a name="l00339"></a>00339 <a class="code" href="group__scale.html#ga83e36cd82bf51ce35406a199e477d47c" title="Multiplies a Q31 vector by a scalar.">arm_scale_q31</a>(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>, 0x7FFFFFFF, -3, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>, BLOCKSIZE);
305 <a name="l00340"></a>00340
306 <a name="l00341"></a>00341 <span class="comment">/* ----------------------------------------------------------------------</span>
307 <a name="l00342"></a>00342 <span class="comment"> ** Call the Q31 Biquad Cascade DF1 32x64 process function for band1, band2</span>
308 <a name="l00343"></a>00343 <span class="comment"> ** ------------------------------------------------------------------- */</span>
309 <a name="l00344"></a>00344
310 <a name="l00345"></a>00345 <a class="code" href="group___biquad_cascade_d_f1__32x64.html#ga953a83e69685de6575cff37feb358a93">arm_biquad_cas_df1_32x64_q31</a>(&S1, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a79521a4d6a9adb144c4d999ae713413c">inputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, BLOCKSIZE);
311 <a name="l00346"></a>00346 <a class="code" href="group___biquad_cascade_d_f1__32x64.html#ga953a83e69685de6575cff37feb358a93">arm_biquad_cas_df1_32x64_q31</a>(&S2, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, BLOCKSIZE);
312 <a name="l00347"></a>00347
313 <a name="l00348"></a>00348 <span class="comment">/* ---------------------------------------------------------------------- </span>
314 <a name="l00349"></a>00349 <span class="comment"> ** Call the Q31 Biquad Cascade DF1 process function for band3, band4, band5</span>
315 <a name="l00350"></a>00350 <span class="comment"> ** ------------------------------------------------------------------- */</span>
316 <a name="l00351"></a>00351
317 <a name="l00352"></a>00352 <a class="code" href="group___biquad_cascade_d_f1.html#ga27b0c54da702713976e5202d20b4473f" title="Processing function for the Q31 Biquad cascade filter.">arm_biquad_cascade_df1_q31</a>(&S3, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, BLOCKSIZE);
318 <a name="l00353"></a>00353 <a class="code" href="group___biquad_cascade_d_f1.html#ga27b0c54da702713976e5202d20b4473f" title="Processing function for the Q31 Biquad cascade filter.">arm_biquad_cascade_df1_q31</a>(&S4, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, BLOCKSIZE);
319 <a name="l00354"></a>00354 <a class="code" href="group___biquad_cascade_d_f1.html#ga27b0c54da702713976e5202d20b4473f" title="Processing function for the Q31 Biquad cascade filter.">arm_biquad_cascade_df1_q31</a>(&S5, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, BLOCKSIZE);
320 <a name="l00355"></a>00355
321 <a name="l00356"></a>00356 <span class="comment">/* ---------------------------------------------------------------------- </span>
322 <a name="l00357"></a>00357 <span class="comment"> ** Convert Q31 result back to float </span>
323 <a name="l00358"></a>00358 <span class="comment"> ** ------------------------------------------------------------------- */</span>
324 <a name="l00359"></a>00359
325 <a name="l00360"></a>00360 <a class="code" href="group__q31__to__x.html#gacf407b007a37da18e99dabd9023c56b4" title="Converts the elements of the Q31 vector to floating-point vector.">arm_q31_to_float</a>(<a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a9862488450f2547b07aee8035d6b4d8a">outputQ31</a>, outputF32 + (i * BLOCKSIZE), BLOCKSIZE);
326 <a name="l00361"></a>00361
327 <a name="l00362"></a>00362 <span class="comment">/* ---------------------------------------------------------------------- </span>
328 <a name="l00363"></a>00363 <span class="comment"> ** Scale back up</span>
329 <a name="l00364"></a>00364 <span class="comment"> ** ------------------------------------------------------------------- */</span>
330 <a name="l00365"></a>00365
331 <a name="l00366"></a>00366 <a class="code" href="group__scale.html#ga3487af88b112f682ee90589cd419e123" title="Multiplies a floating-point vector by a scalar.">arm_scale_f32</a>(outputF32 + (i * BLOCKSIZE), 8.0f, outputF32 + (i * BLOCKSIZE), BLOCKSIZE);
332 <a name="l00367"></a>00367 };
333 <a name="l00368"></a>00368
334 <a name="l00369"></a>00369 <a class="code" href="arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> = arm_snr_f32(<a class="code" href="arm__convolution__example__f32_8c.html#a6463f7327432fc62ad9f6017593330d3">testRefOutput_f32</a>, <a class="code" href="arm__class__marks__example__f32_8c.html#afd4d61aad5f35a4e42d580004e2f9a1d">testOutput</a>, <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#a4f4a95eaace4e7b4e2f5243ed24f6b28">TESTLENGTH</a>);
335 <a name="l00370"></a>00370
336 <a name="l00371"></a>00371 <span class="keywordflow">if</span> (<a class="code" href="arm__convolution__example__f32_8c.html#af06013f588a7003278de222913c9d819">snr</a> < <a class="code" href="arm__graphic__equalizer__example__q31_8c.html#af7d1dd4deffa8e7ed6429e5dd0fe1812">SNR_THRESHOLD_F32</a>)
337 <a name="l00372"></a>00372 {
338 <a name="l00373"></a>00373 status = <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a09457f2be656b35015fd6d36202fa376">ARM_MATH_TEST_FAILURE</a>;
339 <a name="l00374"></a>00374 }
340 <a name="l00375"></a>00375 <span class="keywordflow">else</span>
341 <a name="l00376"></a>00376 {
342 <a name="l00377"></a>00377 status = <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>;
343 <a name="l00378"></a>00378 }
344 <a name="l00379"></a>00379
345 <a name="l00380"></a>00380 <span class="comment">/* ---------------------------------------------------------------------- </span>
346 <a name="l00381"></a>00381 <span class="comment"> ** Loop here if the signal does not match the reference output.</span>
347 <a name="l00382"></a>00382 <span class="comment"> ** ------------------------------------------------------------------- */</span>
348 <a name="l00383"></a>00383
349 <a name="l00384"></a>00384 <span class="keywordflow">if</span>( status != <a class="code" href="arm__math_8h.html#a5e459c6409dfcd2927bb8a57491d7cf6a9f8b2a10bd827fb4600e77d455902eb0">ARM_MATH_SUCCESS</a>)
350 <a name="l00385"></a>00385 {
351 <a name="l00386"></a>00386 <span class="keywordflow">while</span>(1);
352 <a name="l00387"></a>00387 }
353 <a name="l00388"></a>00388
354 <a name="l00389"></a>00389
355 <a name="l00390"></a>00390 }
356 <a name="l00391"></a>00391
359 <!--- window showing the filter options -->
360 <div id="MSearchSelectWindow"
361 onmouseover="return searchBox.OnSearchSelectShow()"
362 onmouseout="return searchBox.OnSearchSelectHide()"
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