Initial commit
This commit is contained in:
Julien Chevalley
@@ -0,0 +1,4 @@
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CMSIS DSP_Lib example arm_signal_converge_example for
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Cortex-M0, Cortex-M3, Cortex-M4 with FPU and Cortex-M7 with single precision FPU.
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The example is configured for uVision Simulator.
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@@ -0,0 +1,269 @@
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/* ----------------------------------------------------------------------
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* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
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*
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* $Date: 17. January 2013
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* $Revision: V1.4.0
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*
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* Project: CMSIS DSP Library
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* Title: arm_signal_converge_data.c
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*
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* Description: Test input data for Floating point LMS Norm FIR filter
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*
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* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of ARM LIMITED nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* -------------------------------------------------------------------- */
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#include "arm_math.h"
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/* ----------------------------------------------------------------------
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** Test input data for Floating point LMS Norm FIR filter
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** Generated by the MATLAB randn() function
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** ------------------------------------------------------------------- */
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float32_t testInput_f32[1536] =
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{
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-0.432565, -1.665584, 0.125332, 0.287676, -1.146471, 1.190915, 1.189164, -0.037633,
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0.327292, 0.174639, -0.186709, 0.725791, -0.588317, 2.183186, -0.136396, 0.113931,
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1.066768, 0.059281, -0.095648, -0.832349, 0.294411, -1.336182, 0.714325, 1.623562,
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-0.691776, 0.857997, 1.254001, -1.593730, -1.440964, 0.571148, -0.399886, 0.689997,
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||||
0.815622, 0.711908, 1.290250, 0.668601, 1.190838, -1.202457, -0.019790, -0.156717,
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||||
-1.604086, 0.257304, -1.056473, 1.415141, -0.805090, 0.528743, 0.219321, -0.921902,
|
||||
-2.170674, -0.059188, -1.010634, 0.614463, 0.507741, 1.692430, 0.591283, -0.643595,
|
||||
0.380337, -1.009116, -0.019511, -0.048221, 0.000043, -0.317859, 1.095004, -1.873990,
|
||||
0.428183, 0.895638, 0.730957, 0.577857, 0.040314, 0.677089, 0.568900, -0.255645,
|
||||
-0.377469, -0.295887, -1.475135, -0.234004, 0.118445, 0.314809, 1.443508, -0.350975,
|
||||
0.623234, 0.799049, 0.940890, -0.992092, 0.212035, 0.237882, -1.007763, -0.742045,
|
||||
1.082295, -0.131500, 0.389880, 0.087987, -0.635465, -0.559573, 0.443653, -0.949904,
|
||||
0.781182, 0.568961, -0.821714, -0.265607, -1.187777, -2.202321, 0.986337, -0.518635,
|
||||
0.327368, 0.234057, 0.021466, -1.003944, -0.947146, -0.374429, -1.185886, -1.055903,
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||||
1.472480, 0.055744, -1.217317, -0.041227, -1.128344, -1.349278, -0.261102, 0.953465,
|
||||
0.128644, 0.656468, -1.167819, -0.460605, -0.262440, -1.213152, -1.319437, 0.931218,
|
||||
0.011245, -0.645146, 0.805729, 0.231626, -0.989760, 1.339586, 0.289502, 1.478917,
|
||||
1.138028, -0.684139, -1.291936, -0.072926, -0.330599, -0.843628, 0.497770, 1.488490,
|
||||
-0.546476, -0.846758, -0.246337, 0.663024, -0.854197, -1.201315, -0.119869, -0.065294,
|
||||
0.485296, -0.595491, -0.149668, -0.434752, -0.079330, 1.535152, -0.606483, -1.347363,
|
||||
0.469383, -0.903567, 0.035880, -0.627531, 0.535398, 0.552884, -0.203690, -2.054325,
|
||||
0.132561, 1.592941, 1.018412, -1.580402, -0.078662, -0.681657, -1.024553, -1.234353,
|
||||
0.288807, -0.429303, 0.055801, -0.367874, -0.464973, 0.370961, 0.728283, 2.112160,
|
||||
-1.357298, -1.022610, 1.037834, -0.389800, -1.381266, 0.315543, 1.553243, 0.707894,
|
||||
1.957385, 0.504542, 1.864529, -0.339812, -1.139779, -0.211123, 1.190245, -1.116209,
|
||||
0.635274, -0.601412, 0.551185, -1.099840, 0.085991, -2.004563, -0.493088, 0.462048,
|
||||
-0.321005, 1.236556, -0.631280, -2.325211, -1.231637, 1.055648, -0.113224, 0.379224,
|
||||
0.944200, -2.120427, -0.644679, -0.704302, -1.018137, -0.182082, 1.521013, -0.038439,
|
||||
1.227448, -0.696205, 0.007524, -0.782893, 0.586939, -0.251207, 0.480136, 0.668155,
|
||||
-0.078321, 0.889173, 2.309287, 0.524639, -0.011787, 0.913141, 0.055941, -1.107070,
|
||||
0.485498, -0.005005, -0.276218, 1.276452, 1.863401, -0.522559, 0.103424, -0.807649,
|
||||
0.680439, -2.364590, 0.990115, 0.218899, 0.261662, 1.213444, -0.274667, -0.133134,
|
||||
-1.270500, -1.663606, -0.703554, 0.280880, -0.541209, -1.333531, 1.072686, -0.712085,
|
||||
-0.011286, -0.000817, -0.249436, 0.396575, -0.264013, -1.664011, -1.028975, 0.243095,
|
||||
-1.256590, -0.347183, -0.941372, -1.174560, -1.021142, -0.401667, 0.173666, -0.116118,
|
||||
1.064119, -0.245386, -1.517539, 0.009734, 0.071373, 0.316536, 0.499826, 1.278084,
|
||||
-0.547816, 0.260808, -0.013177, -0.580264, 2.136308, -0.257617, -1.409528, 1.770101,
|
||||
0.325546, -1.119040, 0.620350, 1.269782, -0.896043, 0.135175, -0.139040, -1.163395,
|
||||
1.183720, -0.015430, 0.536219, -0.716429, -0.655559, 0.314363, 0.106814, 1.848216,
|
||||
-0.275106, 2.212554, 1.508526, -1.945079, -1.680543, -0.573534, -0.185817, 0.008934,
|
||||
0.836950, -0.722271, -0.721490, -0.201181, -0.020464, 0.278890, 1.058295, 0.621673,
|
||||
-1.750615, 0.697348, 0.811486, 0.636345, 1.310080, 0.327098, -0.672993, -0.149327,
|
||||
-2.449018, 0.473286, 0.116946, -0.591104, -0.654708, -1.080662, -0.047731, 0.379345,
|
||||
-0.330361, -0.499898, -0.035979, -0.174760, -0.957265, 1.292548, 0.440910, 1.280941,
|
||||
-0.497730, -1.118717, 0.807650, 0.041200, -0.756209, -0.089129, -2.008850, 1.083918,
|
||||
-0.981191, -0.688489, 1.339479, -0.909243, -0.412858, -0.506163, 1.619748, 0.080901,
|
||||
-1.081056, -1.124518, 1.735676, 1.937459, 1.635068, -1.255940, -0.213538, -0.198932,
|
||||
0.307499, -0.572325, -0.977648, -0.446809, 1.082092, 2.372648, 0.229288, -0.266623,
|
||||
0.701672, -0.487590, 1.862480, 1.106851, -1.227566, -0.669885, 1.340929, 0.388083,
|
||||
0.393059, -1.707334, 0.227859, 0.685633, -0.636790, -1.002606, -0.185621, -1.054033,
|
||||
-0.071539, 0.279198, 1.373275, 0.179841, -0.542017, 1.634191, 0.825215, 0.230761,
|
||||
0.671634, -0.508078, 0.856352, 0.268503, 0.624975, -1.047338, 1.535670, 0.434426,
|
||||
-1.917136, 0.469940, 1.274351, 0.638542, 1.380782, 1.319843, -0.909429, -2.305605,
|
||||
1.788730, 0.390798, 0.020324, -0.405977, -1.534895, 0.221373, -1.374479, -0.839286,
|
||||
-0.208643, 0.755913, 0.375734, -1.345413, 1.481876, 0.032736, 1.870453, -1.208991,
|
||||
-0.782632, -0.767299, -0.107200, -0.977057, -0.963988, -2.379172, -0.838188, 0.257346,
|
||||
-0.183834, -0.167615, -0.116989, 0.168488, -0.501206, -0.705076, 0.508165, -0.420922,
|
||||
0.229133, -0.959497, -0.146043, 0.744538, -0.890496, 0.139062, -0.236144, -0.075459,
|
||||
-0.358572, -2.077635, -0.143546, 1.393341, 0.651804, -0.377134, -0.661443, 0.248958,
|
||||
-0.383516, -0.528480, 0.055388, 1.253769, -2.520004, 0.584856, -1.008064, 0.944285,
|
||||
-2.423957, -0.223831, 0.058070, -0.424614, -0.202918, -1.513077, -1.126352, -0.815002,
|
||||
0.366614, -0.586107, 1.537409, 0.140072, -1.862767, -0.454193, -0.652074, 0.103318,
|
||||
-0.220632, -0.279043, -0.733662, -0.064534, -1.444004, 0.612340, -1.323503, -0.661577,
|
||||
-0.146115, 0.248085, -0.076633, 1.738170, 1.621972, 0.626436, 0.091814, -0.807607,
|
||||
-0.461337, -1.405969, -0.374530, -0.470911, 1.751296, 0.753225, 0.064989, -0.292764,
|
||||
0.082823, 0.766191, 2.236850, 0.326887, 0.863304, 0.679387, 0.554758, 1.001630,
|
||||
1.259365, 0.044151, -0.314138, 0.226708, 0.996692, 1.215912, -0.542702, 0.912228,
|
||||
-0.172141, -0.335955, 0.541487, 0.932111, -0.570253, -1.498605, -0.050346, 0.553025,
|
||||
0.083498, 1.577524, -0.330774, 0.795155, -0.784800, -1.263121, 0.666655, -1.392632,
|
||||
-1.300562, -0.605022, -1.488565, 0.558543, -0.277354, -1.293685, -0.888435, -0.986520,
|
||||
-0.071618, -2.414591, -0.694349, -1.391389, 0.329648, 0.598544, 0.147175, -0.101439,
|
||||
-2.634981, 0.028053, -0.876310, -0.265477, -0.327578, -1.158247, 0.580053, 0.239756,
|
||||
-0.350885, 0.892098, 1.578299, -1.108174, -0.025931, -1.110628, 0.750834, 0.500167,
|
||||
-0.517261, -0.559209, -0.753371, 0.925813, -0.248520, -0.149835, -1.258415, 0.312620,
|
||||
2.690277, 0.289696, -1.422803, 0.246786, -1.435773, 0.148573, -1.693073, 0.719188,
|
||||
1.141773, 1.551936, 1.383630, -0.758092, 0.442663, 0.911098, -1.074086, 0.201762,
|
||||
0.762863, -1.288187, -0.952962, 0.778175, -0.006331, 0.524487, 1.364272, 0.482039,
|
||||
-0.787066, 0.751999, -0.166888, -0.816228, 2.094065, 0.080153, -0.937295, 0.635739,
|
||||
1.682028, 0.593634, 0.790153, 0.105254, -0.158579, 0.870907, -0.194759, 0.075474,
|
||||
-0.526635, -0.685484, -0.268388, -1.188346, 0.248579, 0.102452, -0.041007, -2.247582,
|
||||
-0.510776, 0.249243, 0.369197, 0.179197, -0.037283, -1.603310, 0.339372, -0.131135,
|
||||
0.485190, 0.598751, -0.086031, 0.325292, -0.335143, -0.322449, -0.382374, -0.953371,
|
||||
0.233576, 1.235245, -0.578532, -0.501537, 0.722864, 0.039498, 1.541279, -1.701053,
|
||||
-1.033741, -0.763708, 2.176426, 0.431612, -0.443765, 0.029996, -0.315671, 0.977846,
|
||||
0.018295, 0.817963, 0.702341, -0.231271, -0.113690, 0.127941, -0.799410, -0.238612,
|
||||
-0.089463, -1.023264, 0.937538, -1.131719, -0.710702, -1.169501, 1.065437, -0.680394,
|
||||
-1.725773, 0.813200, 1.441867, 0.672272, 0.138665, -0.859534, -0.752251, 1.229615,
|
||||
1.150754, -0.608025, 0.806158, 0.217133, -0.373461, -0.832030, 0.286866, -1.818892,
|
||||
-1.573051, 2.015666, -0.071982, 2.628909, -0.243317, 0.173276, 0.923207, -0.178553,
|
||||
-0.521705, 1.431962, -0.870117, 0.807542, -0.510635, 0.743514, 0.847898, -0.829901,
|
||||
0.532994, 1.032848, -1.052024, 0.362114, -0.036787, -1.227636, -0.275099, -0.160435,
|
||||
-1.083575, -1.954213, -0.909487, -0.005579, -1.723490, 1.263077, -0.600433, -2.063925,
|
||||
0.110911, 1.487614, 0.053002, 0.161981, -0.026878, 0.173576, 0.882168, 0.182294,
|
||||
0.755295, 0.508035, 0.131880, 0.280104, -0.982848, -0.944087, -0.013058, 0.354345,
|
||||
-0.894709, 0.812111, 0.109537, 2.731644, 0.411079, -1.306862, 0.383806, 0.499504,
|
||||
-0.510786, 0.234922, -0.597825, 0.020771, 0.419443, 1.191104, 0.771214, -2.644222,
|
||||
0.285430, 0.826093, -0.008122, 0.858438, 0.774788, 1.305945, 1.231503, 0.958564,
|
||||
-1.654548, -0.990396, 0.685236, -0.974870, -0.606726, 0.686794, 0.020049, 1.063801,
|
||||
-1.341050, 0.479510, -1.633974, -1.442665, 0.293781, -0.140364, -1.130341, -0.292538,
|
||||
-0.582536, -0.896348, 0.248601, -1.489663, 0.313509, -2.025084, 0.528990, 0.343471,
|
||||
0.758193, -0.691940, 0.680179, -1.072541, 0.899772, -2.123092, 0.284712, -0.733323,
|
||||
-0.773376, 0.151842, -0.336843, 0.970761, -0.107236, 1.013492, -0.475347, 0.068948,
|
||||
0.398592, 1.116326, 0.620451, -0.287674, -1.371773, -0.685868, 0.331685, -0.997722,
|
||||
0.291418, 1.107078, 0.244959, 0.164976, 0.406231, 1.215981, 1.448424, -1.025137,
|
||||
0.205418, 0.588882, -0.264024, 2.495318, 0.855948, -0.850954, 0.811879, 0.700242,
|
||||
0.759938, -1.712909, 1.537021, -1.609847, 1.109526, -1.109704, 0.385469, 0.965231,
|
||||
0.818297, 0.037049, -0.926012, -0.111919, -0.803030, -1.665006, -0.901401, 0.588350,
|
||||
0.554159, -0.415173, 0.061795, 0.457432, 0.199014, 0.257558, 2.080730, -2.277237,
|
||||
0.339022, 0.289894, 0.662261, -0.580860, 0.887752, 0.171871, 0.848821, 0.963769,
|
||||
1.321918, -0.064345, 1.317053, 0.228017, -1.429637, -0.149701, -0.504968, -1.729141,
|
||||
-0.417472, -0.614969, 0.720777, 0.339364, 0.882845, 0.284245, -0.145541, -0.089646,
|
||||
0.289161, 1.164831, 0.805729, -1.355643, 0.120893, -0.222178, 0.571732, -0.300140,
|
||||
1.134277, -0.179356, -1.467067, 1.395346, 0.440836, 0.565384, -0.693623, 0.833869,
|
||||
-2.237378, 1.097644, -0.001617, -1.614573, -1.228727, 0.207405, 0.220942, -1.006073,
|
||||
-0.453067, 1.399453, -0.461964, 0.032716, 0.798783, 0.896816, 0.137892, -1.619146,
|
||||
-1.646606, 0.428707, -0.737231, 0.564926, -1.384167, 0.460268, 0.629384, 0.379847,
|
||||
-1.013330, -0.347243, 0.441912, -1.590240, -0.701417, -1.077601, 1.002220, 1.729481,
|
||||
0.709032, -0.747897, 0.228862, -0.223497, -0.853275, 0.345627, 0.109764, -1.133039,
|
||||
-0.683124, -0.277856, 0.654790, -1.248394, -0.597539, -0.481813, 0.983372, 1.762121,
|
||||
1.427402, 0.911763, 0.326823, 0.069619, -1.499763, -0.418223, -0.021037, 0.228425,
|
||||
-1.008196, -0.664622, 0.558177, -1.188542, -0.775481, 0.271042, 1.534976, -1.052283,
|
||||
0.625559, -0.797626, -0.313522, -0.602210, 1.259060, 0.858484, -2.105292, -0.360937,
|
||||
0.553557, -1.556384, -0.206666, -0.425568, 0.493778, -0.870908, 0.079828, -0.521619,
|
||||
-1.413861, -0.384293, -0.457922, -0.291471, -0.301224, -1.588594, 1.094287, 1.324167,
|
||||
-0.126480, -0.737164, 0.213719, -0.400529, 0.064938, -1.757996, 1.686748, 0.327400,
|
||||
0.715967, 1.598648, -2.064741, -0.743632, 0.176185, 0.527839, -0.553153, 0.298280,
|
||||
-1.226607, -0.189676, -0.301713, 0.956956, -0.533366, -0.901082, -0.892552, 0.278717,
|
||||
-0.745807, 1.603464, 0.574270, 0.320655, -0.151383, 0.315762, 1.343703, -2.237832,
|
||||
1.292906, -0.378459, 0.002521, 0.884641, 0.582450, -1.614244, -1.503666, 0.573586,
|
||||
-0.910537, -1.631277, -0.359138, -0.397616, -1.161307, -1.109838, 0.290672, -1.910239,
|
||||
1.314768, 0.665319, -0.275115, -0.023022, -0.907976, -1.043657, 0.373516, 0.901532,
|
||||
1.278539, -0.128456, 0.612821, 1.956518, 2.266326, -0.373959, 2.238039, -0.159580,
|
||||
-0.703281, 0.563477, -0.050296, 1.163593, 0.658808, -1.550089, -3.029118, 0.540578,
|
||||
-1.008998, 0.908047, 1.582303, -0.979088, 1.007902, 0.158491, -0.586927, 1.574082,
|
||||
-0.516649, 1.227800, 1.583876, -2.088950, 2.949545, 1.356125, 1.050068, -0.767170,
|
||||
-0.257653, -1.371845, -1.267656, -0.894948, 0.589089, 1.842629, 1.347967, -0.491253,
|
||||
-2.177568, 0.237000, -0.735411, -1.779419, 0.448030, 0.581214, 0.856607, -0.266263,
|
||||
-0.417470, -0.205806, -0.174323, 0.217577, 1.684295, 0.119528, 0.650667, 2.080061,
|
||||
-0.339225, 0.730113, 0.293969, -0.849109, -2.533858, -2.378941, -0.346276, -0.610937,
|
||||
-0.408192, -1.415611, 0.227122, 0.207974, -0.719718, 0.757762, -1.643135, -1.056813,
|
||||
-0.251662, -1.298441, 1.233255, 1.494625, 0.235938, -1.404359, 0.658791, -2.556613,
|
||||
-0.534945, 3.202525, 0.439198, -1.149901, 0.886765, -0.283386, 1.035336, -0.364878,
|
||||
1.341987, 1.008872, 0.213874, -0.299264, 0.255849, -0.190826, -0.079060, 0.699851,
|
||||
-0.796540, -0.801284, -0.007599, -0.726810, -1.490902, 0.870335, -0.265675, -1.566695,
|
||||
-0.394636, -0.143855, -2.334247, -1.357539, -1.815689, 1.108422, -0.142115, 1.112757,
|
||||
0.559264, 0.478370, -0.679385, 0.284967, -1.332935, -0.723980, -0.663600, 0.198443,
|
||||
-1.794868, -1.387673, 0.197768, 1.469328, 0.366493, -0.442775, -0.048563, 0.077709,
|
||||
1.957910, -0.072848, 0.938810, -0.079608, -0.800959, 0.309424, 1.051826, -1.664211,
|
||||
-1.090792, -0.191731, 0.463401, -0.924147, -0.649657, 0.622893, -1.335107, 1.047689,
|
||||
0.863327, -0.642411, 0.660010, 1.294116, 0.314579, 0.859573, 0.128670, 0.016568,
|
||||
-0.072801, -0.994310, -0.747358, -0.030814, 0.988355, -0.599017, 1.476644, -0.813801,
|
||||
0.645040, -1.309919, -0.867425, -0.474233, 0.222417, 1.871323, 0.110001, -0.411341,
|
||||
0.511242, -1.199117, -0.096361, 0.445817, -0.295825, -0.167996, 0.179543, 0.421118,
|
||||
1.677678, 1.996949, 0.696964, -1.366382, 0.363045, -0.567044, -1.044154, 0.697139,
|
||||
0.484026, -0.193751, -0.378095, -0.886374, -1.840197, -1.628195, -1.173789, -0.415411,
|
||||
0.175088, 0.229433, -1.240889, 0.700004, 0.426877, 1.454803, -0.510186, -0.006657,
|
||||
-0.525496, 0.717698, 1.088374, 0.500552, 2.771790, -0.160309, 0.429489, -1.966817,
|
||||
-0.546019, -1.888395, -0.107952, -1.316144, -0.672632, -0.902365, -0.154798, 0.947242,
|
||||
1.550375, 0.429040, -0.560795, 0.179304, -0.771509, -0.943390, -1.407569, -1.906131,
|
||||
-0.065293, 0.672149, 0.206147, -0.008124, 0.020042, -0.558447, 1.886079, -0.219975,
|
||||
-1.414395, -0.302811, -0.569574, -0.121495, -0.390171, -0.844287, -1.737757, -0.449520,
|
||||
-1.547933, -0.095776, 0.907714, 2.369602, 0.519768, 0.410525, 1.052585, 0.428784,
|
||||
1.295088, -0.186053, 0.130733, -0.657627, -0.759267, -0.595170, 0.812400, 0.069541,
|
||||
-1.833687, 1.827363, 0.654075, -1.544769, -0.375109, 0.207688, -0.765615, -0.106355,
|
||||
0.338769, 1.033461, -1.404822, -1.030570, -0.643372, 0.170787, 1.344839, 1.936273,
|
||||
0.741336, 0.811980, -0.142808, -0.099858, -0.800131, 0.493249, 1.237574, 1.295951,
|
||||
-0.278196, 0.217127, 0.630728, -0.548549, 0.229632, 0.355311, 0.521284, -0.615971,
|
||||
1.345803, 0.974922, -2.377934, -1.092319, -0.325710, -2.012228, 1.567660, 0.233337,
|
||||
0.646420, -1.129412, 0.197038, 1.696870, 0.726034, 0.792526, 0.603357, -0.058405,
|
||||
-1.108666, 2.144229, -1.352821, 0.457021, 0.391175, 2.073013, -0.323318, 1.468132,
|
||||
-0.502399, 0.209593, 0.754800, -0.948189, 0.613157, 1.760503, 0.088762, 2.595570,
|
||||
-0.675470, 2.786804, -0.016827, 0.271651, -0.914102, -1.951371, -0.317418, 0.588333,
|
||||
0.828996, -1.674851, -1.922293, -0.436662, 0.044974, 2.416609, -0.309892, 0.187583,
|
||||
0.947699, -0.525703, -1.115605, -1.592320, 1.174844, 0.485144, 1.645480, -0.454233,
|
||||
1.008768, 2.049403, 0.602020, 0.017860, -1.610426, 1.238752, 0.683587, -0.780716,
|
||||
0.530979, 2.134498, 0.354361, 0.231700, 1.287980, -0.013488, -1.333345, -0.556343,
|
||||
0.755597, -0.911854, 1.371684, 0.245580, 0.118845, 0.384690, -0.070152, -0.578309,
|
||||
0.469308, 1.299687, 1.634798, -0.702809, 0.807253, -1.027451, 1.294496, 0.014930,
|
||||
0.218705, 1.713188, -2.078805, 0.112917, -1.086491, -1.558311, 0.637406, -0.404576,
|
||||
-0.403325, 0.084076, -0.435349, -0.562623, 0.878062, -0.814650, -0.258363, 0.493299,
|
||||
-0.802694, -0.008329, 0.627571, 0.154382, 2.580735, -1.306246, 1.023526, 0.777795,
|
||||
-0.833884, -0.586663, 0.065664, -0.012342, -0.076987, -1.558587, 1.702607, -0.468984,
|
||||
0.094619, 0.287071, 0.919354, 0.510136, 0.245440, -1.400519, 0.969571, 1.593698,
|
||||
-1.437917, -1.534230, -0.074710, 0.081459, -0.843240, -0.564640, -0.028207, -1.243702,
|
||||
0.733039, 0.059580, 0.149144, 1.595857, -0.777250, 1.550277, 1.055002, -0.166654,
|
||||
0.314484, 1.419571, 0.327348, 0.475653, 0.398754, -0.072770, 1.314784, 0.978279,
|
||||
1.722114, -0.412302, 0.565133, 0.739851, 0.220138, 1.312807, 0.629152, -1.107987,
|
||||
-0.447001, -0.725993, 0.354045, -0.506772, -2.103747, -0.664684, 1.450110, -0.329805,
|
||||
2.701872, -1.634939, -0.536325, 0.547223, 1.492603, -0.455243, -0.496416, 1.235260,
|
||||
0.040926, 0.748467, 1.230764, 0.304903, 1.077771, 0.765151, -1.319580, -0.509191,
|
||||
0.555116, -1.957625, -0.760453, -2.443886, -0.659366, -0.114779, 0.300079, -0.583996,
|
||||
-3.073745, 1.551042, -0.407369, 1.428095, -1.353242, 0.903970, 0.541671, -0.465020
|
||||
};
|
||||
|
||||
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
** Coefficients for 32-tap filter for Floating point LMS FIR filter
|
||||
* FIR high pass filter with cutoff freq 9.6kHz (transition 9.6KHz to 11.52KHz)
|
||||
** ------------------------------------------------------------------- */
|
||||
float32_t lmsNormCoeff_f32[32] = {
|
||||
-0.004240, 0.002301, 0.008860, -0.000000, -0.019782, -0.010543, 0.032881, 0.034736,
|
||||
-0.037374, -0.069586, 0.022397, 0.102169, 0.014185, -0.115908, -0.061648, 0.101018,
|
||||
0.101018, -0.061648, -0.115908, 0.014185, 0.102169, 0.022397, -0.069586, -0.037374,
|
||||
0.034736, 0.032881, -0.010543, -0.019782, -0.000000, 0.008860, 0.002301, -0.004240
|
||||
|
||||
};
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
** Coefficients for 32-tap filter for Floating point FIR filter
|
||||
* FIR low pass filter with cutoff freq 24Hz (transition 24Hz to 240Hz)
|
||||
** ------------------------------------------------------------------- */
|
||||
const float32_t FIRCoeff_f32[32] = {
|
||||
0.004502, 0.005074, 0.006707, 0.009356, 0.012933, 0.017303, 0.022298, 0.027717,
|
||||
0.033338, 0.038930, 0.044258, 0.049098, 0.053243, 0.056519, 0.058784, 0.059941,
|
||||
0.059941, 0.058784, 0.056519, 0.053243, 0.049098, 0.044258, 0.038930, 0.033338,
|
||||
0.027717, 0.022298, 0.017303, 0.012933, 0.009356, 0.006707, 0.005074, 0.004502
|
||||
|
||||
};
|
||||
|
||||
@@ -0,0 +1,259 @@
|
||||
/* ----------------------------------------------------------------------
|
||||
* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
|
||||
*
|
||||
* $Date: 17. January 2013
|
||||
* $Revision: V1.4.0
|
||||
*
|
||||
* Project: CMSIS DSP Library
|
||||
* Title: arm_signal_converge_example_f32.c
|
||||
*
|
||||
* Description: Example code demonstrating convergence of an adaptive
|
||||
* filter.
|
||||
*
|
||||
* Target Processor: Cortex-M4/Cortex-M3
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* - Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* - Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* - Neither the name of ARM LIMITED nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this
|
||||
* software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
* -------------------------------------------------------------------- */
|
||||
|
||||
/**
|
||||
* @ingroup groupExamples
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup SignalConvergence Signal Convergence Example
|
||||
*
|
||||
* \par Description:
|
||||
* \par
|
||||
* Demonstrates the ability of an adaptive filter to "learn" the transfer function of
|
||||
* a FIR lowpass filter using the Normalized LMS Filter, Finite Impulse
|
||||
* Response (FIR) Filter, and Basic Math Functions.
|
||||
*
|
||||
* \par Algorithm:
|
||||
* \par
|
||||
* The figure below illustrates the signal flow in this example. Uniformly distributed white
|
||||
* noise is passed through an FIR lowpass filter. The output of the FIR filter serves as the
|
||||
* reference input of the adaptive filter (normalized LMS filter). The white noise is input
|
||||
* to the adaptive filter. The adaptive filter learns the transfer function of the FIR filter.
|
||||
* The filter outputs two signals: (1) the output of the internal adaptive FIR filter, and
|
||||
* (2) the error signal which is the difference between the adaptive filter and the reference
|
||||
* output of the FIR filter. Over time as the adaptive filter learns the transfer function
|
||||
* of the FIR filter, the first output approaches the reference output of the FIR filter,
|
||||
* and the error signal approaches zero.
|
||||
* \par
|
||||
* The adaptive filter converges properly even if the input signal has a large dynamic
|
||||
* range (i.e., varies from small to large values). The coefficients of the adaptive filter
|
||||
* are initially zero, and then converge over 1536 samples. The internal function test_signal_converge()
|
||||
* implements the stopping condition. The function checks if all of the values of the error signal have a
|
||||
* magnitude below a threshold DELTA.
|
||||
*
|
||||
* \par Block Diagram:
|
||||
* \par
|
||||
* \image html SignalFlow.gif
|
||||
*
|
||||
*
|
||||
* \par Variables Description:
|
||||
* \par
|
||||
* \li \c testInput_f32 points to the input data
|
||||
* \li \c firStateF32 points to FIR state buffer
|
||||
* \li \c lmsStateF32 points to Normalised Least mean square FIR filter state buffer
|
||||
* \li \c FIRCoeff_f32 points to coefficient buffer
|
||||
* \li \c lmsNormCoeff_f32 points to Normalised Least mean square FIR filter coefficient buffer
|
||||
* \li \c wire1, wir2, wire3 temporary buffers
|
||||
* \li \c errOutput, err_signal temporary error buffers
|
||||
*
|
||||
* \par CMSIS DSP Software Library Functions Used:
|
||||
* \par
|
||||
* - arm_lms_norm_init_f32()
|
||||
* - arm_fir_init_f32()
|
||||
* - arm_fir_f32()
|
||||
* - arm_lms_norm_f32()
|
||||
* - arm_scale_f32()
|
||||
* - arm_abs_f32()
|
||||
* - arm_sub_f32()
|
||||
* - arm_min_f32()
|
||||
* - arm_copy_f32()
|
||||
*
|
||||
* <b> Refer </b>
|
||||
* \link arm_signal_converge_example_f32.c \endlink
|
||||
*
|
||||
*/
|
||||
|
||||
|
||||
/** \example arm_signal_converge_example_f32.c
|
||||
*/
|
||||
|
||||
#include "arm_math.h"
|
||||
#include "math_helper.h"
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
** Global defines for the simulation
|
||||
* ------------------------------------------------------------------- */
|
||||
|
||||
#define TEST_LENGTH_SAMPLES 1536
|
||||
#define NUMTAPS 32
|
||||
#define BLOCKSIZE 32
|
||||
#define DELTA_ERROR 0.000001f
|
||||
#define DELTA_COEFF 0.0001f
|
||||
#define MU 0.5f
|
||||
|
||||
#define NUMFRAMES (TEST_LENGTH_SAMPLES / BLOCKSIZE)
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Declare FIR state buffers and structure
|
||||
* ------------------------------------------------------------------- */
|
||||
|
||||
float32_t firStateF32[NUMTAPS + BLOCKSIZE];
|
||||
arm_fir_instance_f32 LPF_instance;
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Declare LMSNorm state buffers and structure
|
||||
* ------------------------------------------------------------------- */
|
||||
|
||||
float32_t lmsStateF32[NUMTAPS + BLOCKSIZE];
|
||||
float32_t errOutput[TEST_LENGTH_SAMPLES];
|
||||
arm_lms_norm_instance_f32 lmsNorm_instance;
|
||||
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Function Declarations for Signal Convergence Example
|
||||
* ------------------------------------------------------------------- */
|
||||
|
||||
arm_status test_signal_converge_example( void );
|
||||
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Internal functions
|
||||
* ------------------------------------------------------------------- */
|
||||
arm_status test_signal_converge(float32_t* err_signal,
|
||||
uint32_t blockSize);
|
||||
|
||||
void getinput(float32_t* input,
|
||||
uint32_t fr_cnt,
|
||||
uint32_t blockSize);
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* External Declarations for FIR F32 module Test
|
||||
* ------------------------------------------------------------------- */
|
||||
extern float32_t testInput_f32[TEST_LENGTH_SAMPLES];
|
||||
extern float32_t lmsNormCoeff_f32[32];
|
||||
extern const float32_t FIRCoeff_f32[32];
|
||||
extern arm_lms_norm_instance_f32 lmsNorm_instance;
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Declare I/O buffers
|
||||
* ------------------------------------------------------------------- */
|
||||
|
||||
float32_t wire1[BLOCKSIZE];
|
||||
float32_t wire2[BLOCKSIZE];
|
||||
float32_t wire3[BLOCKSIZE];
|
||||
float32_t err_signal[BLOCKSIZE];
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Signal converge test
|
||||
* ------------------------------------------------------------------- */
|
||||
|
||||
int32_t main(void)
|
||||
{
|
||||
uint32_t i;
|
||||
arm_status status;
|
||||
uint32_t index;
|
||||
float32_t minValue;
|
||||
|
||||
/* Initialize the LMSNorm data structure */
|
||||
arm_lms_norm_init_f32(&lmsNorm_instance, NUMTAPS, lmsNormCoeff_f32, lmsStateF32, MU, BLOCKSIZE);
|
||||
|
||||
/* Initialize the FIR data structure */
|
||||
arm_fir_init_f32(&LPF_instance, NUMTAPS, (float32_t *)FIRCoeff_f32, firStateF32, BLOCKSIZE);
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Loop over the frames of data and execute each of the processing
|
||||
* functions in the system.
|
||||
* ------------------------------------------------------------------- */
|
||||
|
||||
for(i=0; i < NUMFRAMES; i++)
|
||||
{
|
||||
/* Read the input data - uniformly distributed random noise - into wire1 */
|
||||
arm_copy_f32(testInput_f32 + (i * BLOCKSIZE), wire1, BLOCKSIZE);
|
||||
|
||||
/* Execute the FIR processing function. Input wire1 and output wire2 */
|
||||
arm_fir_f32(&LPF_instance, wire1, wire2, BLOCKSIZE);
|
||||
|
||||
/* Execute the LMS Norm processing function*/
|
||||
|
||||
arm_lms_norm_f32(&lmsNorm_instance, /* LMSNorm instance */
|
||||
wire1, /* Input signal */
|
||||
wire2, /* Reference Signal */
|
||||
wire3, /* Converged Signal */
|
||||
err_signal, /* Error Signal, this will become small as the signal converges */
|
||||
BLOCKSIZE); /* BlockSize */
|
||||
|
||||
/* apply overall gain */
|
||||
arm_scale_f32(wire3, 5, wire3, BLOCKSIZE); /* in-place buffer */
|
||||
}
|
||||
|
||||
status = ARM_MATH_SUCCESS;
|
||||
|
||||
/* -------------------------------------------------------------------------------
|
||||
* Test whether the error signal has reached towards 0.
|
||||
* ----------------------------------------------------------------------------- */
|
||||
|
||||
arm_abs_f32(err_signal, err_signal, BLOCKSIZE);
|
||||
arm_min_f32(err_signal, BLOCKSIZE, &minValue, &index);
|
||||
|
||||
if (minValue > DELTA_ERROR)
|
||||
{
|
||||
status = ARM_MATH_TEST_FAILURE;
|
||||
}
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Test whether the filter coefficients have converged.
|
||||
* ------------------------------------------------------------------- */
|
||||
|
||||
arm_sub_f32((float32_t *)FIRCoeff_f32, lmsNormCoeff_f32, lmsNormCoeff_f32, NUMTAPS);
|
||||
|
||||
arm_abs_f32(lmsNormCoeff_f32, lmsNormCoeff_f32, NUMTAPS);
|
||||
arm_min_f32(lmsNormCoeff_f32, NUMTAPS, &minValue, &index);
|
||||
|
||||
if (minValue > DELTA_COEFF)
|
||||
{
|
||||
status = ARM_MATH_TEST_FAILURE;
|
||||
}
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Loop here if the signals did not pass the convergence check.
|
||||
* This denotes a test failure
|
||||
* ------------------------------------------------------------------- */
|
||||
|
||||
if ( status != ARM_MATH_SUCCESS)
|
||||
{
|
||||
while (1);
|
||||
}
|
||||
|
||||
while (1); /* main function does not return */
|
||||
}
|
||||
|
||||
/** \endlink */
|
||||
@@ -0,0 +1,466 @@
|
||||
/* ----------------------------------------------------------------------
|
||||
* Copyright (C) 2010-2012 ARM Limited. All rights reserved.
|
||||
*
|
||||
* $Date: 17. January 2013
|
||||
* $Revision: V1.4.0 b
|
||||
*
|
||||
* Project: CMSIS DSP Library
|
||||
*
|
||||
* Title: math_helper.c
|
||||
*
|
||||
* Description: Definition of all helper functions required.
|
||||
*
|
||||
* Target Processor: Cortex-M4/Cortex-M3
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* - Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* - Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* - Neither the name of ARM LIMITED nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this
|
||||
* software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
* -------------------------------------------------------------------- */
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Include standard header files
|
||||
* -------------------------------------------------------------------- */
|
||||
#include<math.h>
|
||||
|
||||
/* ----------------------------------------------------------------------
|
||||
* Include project header files
|
||||
* -------------------------------------------------------------------- */
|
||||
#include "math_helper.h"
|
||||
|
||||
/**
|
||||
* @brief Caluclation of SNR
|
||||
* @param[in] pRef Pointer to the reference buffer
|
||||
* @param[in] pTest Pointer to the test buffer
|
||||
* @param[in] buffSize total number of samples
|
||||
* @return SNR
|
||||
* The function Caluclates signal to noise ratio for the reference output
|
||||
* and test output
|
||||
*/
|
||||
|
||||
float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize)
|
||||
{
|
||||
float EnergySignal = 0.0, EnergyError = 0.0;
|
||||
uint32_t i;
|
||||
float SNR;
|
||||
int temp;
|
||||
int *test;
|
||||
|
||||
for (i = 0; i < buffSize; i++)
|
||||
{
|
||||
/* Checking for a NAN value in pRef array */
|
||||
test = (int *)(&pRef[i]);
|
||||
temp = *test;
|
||||
|
||||
if (temp == 0x7FC00000)
|
||||
{
|
||||
return(0);
|
||||
}
|
||||
|
||||
/* Checking for a NAN value in pTest array */
|
||||
test = (int *)(&pTest[i]);
|
||||
temp = *test;
|
||||
|
||||
if (temp == 0x7FC00000)
|
||||
{
|
||||
return(0);
|
||||
}
|
||||
EnergySignal += pRef[i] * pRef[i];
|
||||
EnergyError += (pRef[i] - pTest[i]) * (pRef[i] - pTest[i]);
|
||||
}
|
||||
|
||||
/* Checking for a NAN value in EnergyError */
|
||||
test = (int *)(&EnergyError);
|
||||
temp = *test;
|
||||
|
||||
if (temp == 0x7FC00000)
|
||||
{
|
||||
return(0);
|
||||
}
|
||||
|
||||
|
||||
SNR = 10 * log10 (EnergySignal / EnergyError);
|
||||
|
||||
return (SNR);
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @brief Provide guard bits for Input buffer
|
||||
* @param[in,out] input_buf Pointer to input buffer
|
||||
* @param[in] blockSize block Size
|
||||
* @param[in] guard_bits guard bits
|
||||
* @return none
|
||||
* The function Provides the guard bits for the buffer
|
||||
* to avoid overflow
|
||||
*/
|
||||
|
||||
void arm_provide_guard_bits_q15 (q15_t * input_buf, uint32_t blockSize,
|
||||
uint32_t guard_bits)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < blockSize; i++)
|
||||
{
|
||||
input_buf[i] = input_buf[i] >> guard_bits;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Converts float to fixed in q12.20 format
|
||||
* @param[in] pIn pointer to input buffer
|
||||
* @param[out] pOut pointer to outputbuffer
|
||||
* @param[in] numSamples number of samples in the input buffer
|
||||
* @return none
|
||||
* The function converts floating point values to fixed point(q12.20) values
|
||||
*/
|
||||
|
||||
void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < numSamples; i++)
|
||||
{
|
||||
/* 1048576.0f corresponds to pow(2, 20) */
|
||||
pOut[i] = (q31_t) (pIn[i] * 1048576.0f);
|
||||
|
||||
pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
|
||||
|
||||
if (pIn[i] == (float) 1.0)
|
||||
{
|
||||
pOut[i] = 0x000FFFFF;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Compare MATLAB Reference Output and ARM Test output
|
||||
* @param[in] pIn Pointer to Ref buffer
|
||||
* @param[in] pOut Pointer to Test buffer
|
||||
* @param[in] numSamples number of samples in the buffer
|
||||
* @return maximum difference
|
||||
*/
|
||||
|
||||
uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t *pOut, uint32_t numSamples)
|
||||
{
|
||||
uint32_t i;
|
||||
int32_t diff, diffCrnt = 0;
|
||||
uint32_t maxDiff = 0;
|
||||
|
||||
for (i = 0; i < numSamples; i++)
|
||||
{
|
||||
diff = pIn[i] - pOut[i];
|
||||
diffCrnt = (diff > 0) ? diff : -diff;
|
||||
|
||||
if (diffCrnt > maxDiff)
|
||||
{
|
||||
maxDiff = diffCrnt;
|
||||
}
|
||||
}
|
||||
|
||||
return(maxDiff);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Compare MATLAB Reference Output and ARM Test output
|
||||
* @param[in] pIn Pointer to Ref buffer
|
||||
* @param[in] pOut Pointer to Test buffer
|
||||
* @param[in] numSamples number of samples in the buffer
|
||||
* @return maximum difference
|
||||
*/
|
||||
|
||||
uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t * pOut, uint32_t numSamples)
|
||||
{
|
||||
uint32_t i;
|
||||
int32_t diff, diffCrnt = 0;
|
||||
uint32_t maxDiff = 0;
|
||||
|
||||
for (i = 0; i < numSamples; i++)
|
||||
{
|
||||
diff = pIn[i] - pOut[i];
|
||||
diffCrnt = (diff > 0) ? diff : -diff;
|
||||
|
||||
if (diffCrnt > maxDiff)
|
||||
{
|
||||
maxDiff = diffCrnt;
|
||||
}
|
||||
}
|
||||
|
||||
return(maxDiff);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Provide guard bits for Input buffer
|
||||
* @param[in,out] input_buf Pointer to input buffer
|
||||
* @param[in] blockSize block Size
|
||||
* @param[in] guard_bits guard bits
|
||||
* @return none
|
||||
* The function Provides the guard bits for the buffer
|
||||
* to avoid overflow
|
||||
*/
|
||||
|
||||
void arm_provide_guard_bits_q31 (q31_t * input_buf,
|
||||
uint32_t blockSize,
|
||||
uint32_t guard_bits)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < blockSize; i++)
|
||||
{
|
||||
input_buf[i] = input_buf[i] >> guard_bits;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Provide guard bits for Input buffer
|
||||
* @param[in,out] input_buf Pointer to input buffer
|
||||
* @param[in] blockSize block Size
|
||||
* @param[in] guard_bits guard bits
|
||||
* @return none
|
||||
* The function Provides the guard bits for the buffer
|
||||
* to avoid overflow
|
||||
*/
|
||||
|
||||
void arm_provide_guard_bits_q7 (q7_t * input_buf,
|
||||
uint32_t blockSize,
|
||||
uint32_t guard_bits)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < blockSize; i++)
|
||||
{
|
||||
input_buf[i] = input_buf[i] >> guard_bits;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @brief Caluclates number of guard bits
|
||||
* @param[in] num_adds number of additions
|
||||
* @return guard bits
|
||||
* The function Caluclates the number of guard bits
|
||||
* depending on the numtaps
|
||||
*/
|
||||
|
||||
uint32_t arm_calc_guard_bits (uint32_t num_adds)
|
||||
{
|
||||
uint32_t i = 1, j = 0;
|
||||
|
||||
if (num_adds == 1)
|
||||
{
|
||||
return (0);
|
||||
}
|
||||
|
||||
while (i < num_adds)
|
||||
{
|
||||
i = i * 2;
|
||||
j++;
|
||||
}
|
||||
|
||||
return (j);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Apply guard bits to buffer
|
||||
* @param[in,out] pIn pointer to input buffer
|
||||
* @param[in] numSamples number of samples in the input buffer
|
||||
* @param[in] guard_bits guard bits
|
||||
* @return none
|
||||
*/
|
||||
|
||||
void arm_apply_guard_bits (float32_t *pIn,
|
||||
uint32_t numSamples,
|
||||
uint32_t guard_bits)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < numSamples; i++)
|
||||
{
|
||||
pIn[i] = pIn[i] * arm_calc_2pow(guard_bits);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Calculates pow(2, numShifts)
|
||||
* @param[in] numShifts number of shifts
|
||||
* @return pow(2, numShifts)
|
||||
*/
|
||||
uint32_t arm_calc_2pow(uint32_t numShifts)
|
||||
{
|
||||
|
||||
uint32_t i, val = 1;
|
||||
|
||||
for (i = 0; i < numShifts; i++)
|
||||
{
|
||||
val = val * 2;
|
||||
}
|
||||
|
||||
return(val);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @brief Converts float to fixed q14
|
||||
* @param[in] pIn pointer to input buffer
|
||||
* @param[out] pOut pointer to output buffer
|
||||
* @param[in] numSamples number of samples in the buffer
|
||||
* @return none
|
||||
* The function converts floating point values to fixed point values
|
||||
*/
|
||||
|
||||
void arm_float_to_q14 (float *pIn, q15_t *pOut, uint32_t numSamples)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < numSamples; i++)
|
||||
{
|
||||
/* 16384.0f corresponds to pow(2, 14) */
|
||||
pOut[i] = (q15_t) (pIn[i] * 16384.0f);
|
||||
|
||||
pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
|
||||
|
||||
if (pIn[i] == (float) 2.0)
|
||||
{
|
||||
pOut[i] = 0x7FFF;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @brief Converts float to fixed q30 format
|
||||
* @param[in] pIn pointer to input buffer
|
||||
* @param[out] pOut pointer to output buffer
|
||||
* @param[in] numSamples number of samples in the buffer
|
||||
* @return none
|
||||
* The function converts floating point values to fixed point values
|
||||
*/
|
||||
|
||||
void arm_float_to_q30 (float *pIn, q31_t * pOut, uint32_t numSamples)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < numSamples; i++)
|
||||
{
|
||||
/* 1073741824.0f corresponds to pow(2, 30) */
|
||||
pOut[i] = (q31_t) (pIn[i] * 1073741824.0f);
|
||||
|
||||
pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
|
||||
|
||||
if (pIn[i] == (float) 2.0)
|
||||
{
|
||||
pOut[i] = 0x7FFFFFFF;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Converts float to fixed q30 format
|
||||
* @param[in] pIn pointer to input buffer
|
||||
* @param[out] pOut pointer to output buffer
|
||||
* @param[in] numSamples number of samples in the buffer
|
||||
* @return none
|
||||
* The function converts floating point values to fixed point values
|
||||
*/
|
||||
|
||||
void arm_float_to_q29 (float *pIn, q31_t *pOut, uint32_t numSamples)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < numSamples; i++)
|
||||
{
|
||||
/* 1073741824.0f corresponds to pow(2, 30) */
|
||||
pOut[i] = (q31_t) (pIn[i] * 536870912.0f);
|
||||
|
||||
pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
|
||||
|
||||
if (pIn[i] == (float) 4.0)
|
||||
{
|
||||
pOut[i] = 0x7FFFFFFF;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @brief Converts float to fixed q28 format
|
||||
* @param[in] pIn pointer to input buffer
|
||||
* @param[out] pOut pointer to output buffer
|
||||
* @param[in] numSamples number of samples in the buffer
|
||||
* @return none
|
||||
* The function converts floating point values to fixed point values
|
||||
*/
|
||||
|
||||
void arm_float_to_q28 (float *pIn, q31_t *pOut, uint32_t numSamples)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < numSamples; i++)
|
||||
{
|
||||
/* 268435456.0f corresponds to pow(2, 28) */
|
||||
pOut[i] = (q31_t) (pIn[i] * 268435456.0f);
|
||||
|
||||
pOut[i] += pIn[i] > 0 ? 0.5 : -0.5;
|
||||
|
||||
if (pIn[i] == (float) 8.0)
|
||||
{
|
||||
pOut[i] = 0x7FFFFFFF;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Clip the float values to +/- 1
|
||||
* @param[in,out] pIn input buffer
|
||||
* @param[in] numSamples number of samples in the buffer
|
||||
* @return none
|
||||
* The function converts floating point values to fixed point values
|
||||
*/
|
||||
|
||||
void arm_clip_f32 (float *pIn, uint32_t numSamples)
|
||||
{
|
||||
uint32_t i;
|
||||
|
||||
for (i = 0; i < numSamples; i++)
|
||||
{
|
||||
if (pIn[i] > 1.0f)
|
||||
{
|
||||
pIn[i] = 1.0;
|
||||
}
|
||||
else if ( pIn[i] < -1.0f)
|
||||
{
|
||||
pIn[i] = -1.0;
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
@@ -0,0 +1,63 @@
|
||||
/* ----------------------------------------------------------------------
|
||||
* Copyright (C) 2010-2013 ARM Limited. All rights reserved.
|
||||
*
|
||||
* $Date: 17. January 2013
|
||||
* $Revision: V1.4.0
|
||||
*
|
||||
* Project: CMSIS DSP Library
|
||||
*
|
||||
* Title: math_helper.h
|
||||
*
|
||||
* Description: Prototypes of all helper functions required.
|
||||
*
|
||||
* Target Processor: Cortex-M4/Cortex-M3
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* - Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* - Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* - Neither the name of ARM LIMITED nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this
|
||||
* software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
* -------------------------------------------------------------------- */
|
||||
|
||||
|
||||
#include "arm_math.h"
|
||||
|
||||
#ifndef MATH_HELPER_H
|
||||
#define MATH_HELPER_H
|
||||
|
||||
float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize);
|
||||
void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples);
|
||||
void arm_provide_guard_bits_q15(q15_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
|
||||
void arm_provide_guard_bits_q31(q31_t *input_buf, uint32_t blockSize, uint32_t guard_bits);
|
||||
void arm_float_to_q14(float *pIn, q15_t *pOut, uint32_t numSamples);
|
||||
void arm_float_to_q29(float *pIn, q31_t *pOut, uint32_t numSamples);
|
||||
void arm_float_to_q28(float *pIn, q31_t *pOut, uint32_t numSamples);
|
||||
void arm_float_to_q30(float *pIn, q31_t *pOut, uint32_t numSamples);
|
||||
void arm_clip_f32(float *pIn, uint32_t numSamples);
|
||||
uint32_t arm_calc_guard_bits(uint32_t num_adds);
|
||||
void arm_apply_guard_bits (float32_t * pIn, uint32_t numSamples, uint32_t guard_bits);
|
||||
uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t * pOut, uint32_t numSamples);
|
||||
uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t *pOut, uint32_t numSamples);
|
||||
uint32_t arm_calc_2pow(uint32_t guard_bits);
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user