215 lines
2.8 KiB
C
215 lines
2.8 KiB
C
/*
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* Copyright (c) 2015 NXP B.V.
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* All rights reserved.
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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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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of NXP B.V. nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY NXP B.V. AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NXP B.V. OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author: Theo van Daele <theo.van.daele@nxp.com>
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*
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*/
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/* This file contains arrays with waveforms.
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The arrays are of type int8. No limit on size, but for convenience of demonstrating take care that sample
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period may be 10secs or more. Size for all tables should be equal !! */
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#define SIZE_OF_WAVEFORM 40
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static const int8 sin_table[] = {
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0,
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19,
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39,
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57,
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74,
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89,
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102,
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113,
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120,
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125,
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127,
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125,
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120,
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113,
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102,
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89,
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74,
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57,
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39,
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19,
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0,
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-20,
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-40,
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-58,
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-75,
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-90,
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-103,
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-114,
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-121,
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-126,
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-127,
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-126,
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-121,
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-114,
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-103,
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-90,
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-75,
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-58,
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-40,
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-20
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};
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static const int8 triangle_table[] = {
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-127,
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-114,
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-101,
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-87,
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-74,
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-61,
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-47,
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-34,
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-21,
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-7,
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6,
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20,
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33,
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46,
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60,
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73,
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86,
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100,
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113,
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127,
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127,
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113,
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100,
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86,
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73,
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60,
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46,
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33,
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20,
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6,
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-7,
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-21,
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-34,
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-47,
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-61,
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-74,
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-87,
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-101,
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-114,
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-127
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};
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static const int8 pos_sawtooth_table[] = {
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-127,
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-121,
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-115,
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-108,
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-102,
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-96,
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-89,
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-83,
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-76,
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-70,
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-64,
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-57,
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-51,
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-45,
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-38,
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-32,
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-25,
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-19,
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-13,
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-6,
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0,
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6,
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13,
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19,
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26,
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32,
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38,
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45,
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51,
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57,
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64,
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70,
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77,
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83,
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89,
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96,
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102,
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108,
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115,
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121
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};
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static const int8 neg_sawtooth_table[] = {
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127,
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120,
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114,
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107,
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101,
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95,
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88,
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82,
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76,
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69,
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63,
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56,
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50,
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44,
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37,
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31,
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25,
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18,
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12,
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5,
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-1,
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-7,
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-14,
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-20,
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-26,
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-33,
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-39,
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-46,
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-52,
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-58,
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-65,
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-71,
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-77,
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-84,
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-90,
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-97,
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-103,
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-109,
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-116,
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-122
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};
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