drivers/dac/daclookups_12bit.h

   1 /**************************************************************************/
   2 /*!
   3     @file     daclookups_12bit.h
   4     @author   K. Townsend (microBuilder.eu)
   5
   6     @section LICENSE
   7
   8     Software License Agreement (BSD License)
   9
  10     Copyright (c) 2012, microBuilder SARL
  11     All rights reserved.
  12
  13     Redistribution and use in source and binary forms, with or without
  14     modification, are permitted provided that the following conditions are met:
  15     1. Redistributions of source code must retain the above copyright
  16     notice, this list of conditions and the following disclaimer.
  17     2. Redistributions in binary form must reproduce the above copyright
  18     notice, this list of conditions and the following disclaimer in the
  19     documentation and/or other materials provided with the distribution.
  20     3. Neither the name of the copyright holders nor the
  21     names of its contributors may be used to endorse or promote products
  22     derived from this software without specific prior written permission.
  23
  24     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
  25     EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  26     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
  28     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  29     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  30     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  31     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  33     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34 */
  35 /**************************************************************************/
  36
  37 #ifndef _DACLOOKUPS_12BIT_H_
  38 #define _DACLOOKUPS_12BIT_H_
  39
  40 #include "projectconfig.h"
  41
  42 /* Note: If flash space is tight a quarter sine wave is enough
  43    to generate full sine and cos waves, but some additional
  44    calculation will be required at each step after the first
  45    quarter wave.                                              */
  46
  47 const uint16_t DACLookup_FullSine_9Bit[512] =
  48 {
  49   2048, 2073, 2098, 2123, 2148, 2174, 2199, 2224,
  50   2249, 2274, 2299, 2324, 2349, 2373, 2398, 2423,
  51   2448, 2472, 2497, 2521, 2546, 2570, 2594, 2618,
  52   2643, 2667, 2690, 2714, 2738, 2762, 2785, 2808,
  53   2832, 2855, 2878, 2901, 2924, 2946, 2969, 2991,
  54   3013, 3036, 3057, 3079, 3101, 3122, 3144, 3165,
  55   3186, 3207, 3227, 3248, 3268, 3288, 3308, 3328,
  56   3347, 3367, 3386, 3405, 3423, 3442, 3460, 3478,
  57   3496, 3514, 3531, 3548, 3565, 3582, 3599, 3615,
  58   3631, 3647, 3663, 3678, 3693, 3708, 3722, 3737,
  59   3751, 3765, 3778, 3792, 3805, 3817, 3830, 3842,
  60   3854, 3866, 3877, 3888, 3899, 3910, 3920, 3930,
  61   3940, 3950, 3959, 3968, 3976, 3985, 3993, 4000,
  62   4008, 4015, 4022, 4028, 4035, 4041, 4046, 4052,
  63   4057, 4061, 4066, 4070, 4074, 4077, 4081, 4084,
  64   4086, 4088, 4090, 4092, 4094, 4095, 4095, 4095,
  65   4095, 4095, 4095, 4095, 4094, 4092, 4090, 4088,
  66   4086, 4084, 4081, 4077, 4074, 4070, 4066, 4061,
  67   4057, 4052, 4046, 4041, 4035, 4028, 4022, 4015,
  68   4008, 4000, 3993, 3985, 3976, 3968, 3959, 3950,
  69   3940, 3930, 3920, 3910, 3899, 3888, 3877, 3866,
  70   3854, 3842, 3830, 3817, 3805, 3792, 3778, 3765,
  71   3751, 3737, 3722, 3708, 3693, 3678, 3663, 3647,
  72   3631, 3615, 3599, 3582, 3565, 3548, 3531, 3514,
  73   3496, 3478, 3460, 3442, 3423, 3405, 3386, 3367,
  74   3347, 3328, 3308, 3288, 3268, 3248, 3227, 3207,
  75   3186, 3165, 3144, 3122, 3101, 3079, 3057, 3036,
  76   3013, 2991, 2969, 2946, 2924, 2901, 2878, 2855,
  77   2832, 2808, 2785, 2762, 2738, 2714, 2690, 2667,
  78   2643, 2618, 2594, 2570, 2546, 2521, 2497, 2472,
  79   2448, 2423, 2398, 2373, 2349, 2324, 2299, 2274,
  80   2249, 2224, 2199, 2174, 2148, 2123, 2098, 2073,
  81   2048, 2023, 1998, 1973, 1948, 1922, 1897, 1872,
  82   1847, 1822, 1797, 1772, 1747, 1723, 1698, 1673,
  83   1648, 1624, 1599, 1575, 1550, 1526, 1502, 1478,
  84   1453, 1429, 1406, 1382, 1358, 1334, 1311, 1288,
  85   1264, 1241, 1218, 1195, 1172, 1150, 1127, 1105,
  86   1083, 1060, 1039, 1017,  995,  974,  952,  931,
  87    910,  889,  869,  848,  828,  808,  788,  768,
  88    749,  729,  710,  691,  673,  654,  636,  618,
  89    600,  582,  565,  548,  531,  514,  497,  481,
  90    465,  449,  433,  418,  403,  388,  374,  359,
  91    345,  331,  318,  304,  291,  279,  266,  254,
  92    242,  230,  219,  208,  197,  186,  176,  166,
  93    156,  146,  137,  128,  120,  111,  103,   96,
  94     88,   81,   74,   68,   61,   55,   50,   44,
  95     39,   35,   30,   26,   22,   19,   15,   12,
  96     10,    8,    6,    4,    2,    1,    1,    0,
  97      0,    0,    1,    1,    2,    4,    6,    8,
  98     10,   12,   15,   19,   22,   26,   30,   35,
  99     39,   44,   50,   55,   61,   68,   74,   81,
 100     88,   96,  103,  111,  120,  128,  137,  146,
 101    156,  166,  176,  186,  197,  208,  219,  230,
 102    242,  254,  266,  279,  291,  304,  318,  331,
 103    345,  359,  374,  388,  403,  418,  433,  449,
 104    465,  481,  497,  514,  531,  548,  565,  582,
 105    600,  618,  636,  654,  673,  691,  710,  729,
 106    749,  768,  788,  808,  828,  848,  869,  889,
 107    910,  931,  952,  974,  995, 1017, 1039, 1060,
 108   1083, 1105, 1127, 1150, 1172, 1195, 1218, 1241,
 109   1264, 1288, 1311, 1334, 1358, 1382, 1406, 1429,
 110   1453, 1478, 1502, 1526, 1550, 1575, 1599, 1624,
 111   1648, 1673, 1698, 1723, 1747, 1772, 1797, 1822,
 112   1847, 1872, 1897, 1922, 1948, 1973, 1998, 2023
 113 };
 114
 115 const uint16_t DACLookup_FullSine_8Bit[256] =
 116 {
 117   2048, 2098, 2148, 2198, 2248, 2298, 2348, 2398,
 118   2447, 2496, 2545, 2594, 2642, 2690, 2737, 2784,
 119   2831, 2877, 2923, 2968, 3013, 3057, 3100, 3143,
 120   3185, 3226, 3267, 3307, 3346, 3385, 3423, 3459,
 121   3495, 3530, 3565, 3598, 3630, 3662, 3692, 3722,
 122   3750, 3777, 3804, 3829, 3853, 3876, 3898, 3919,
 123   3939, 3958, 3975, 3992, 4007, 4021, 4034, 4045,
 124   4056, 4065, 4073, 4080, 4085, 4089, 4093, 4094,
 125   4095, 4094, 4093, 4089, 4085, 4080, 4073, 4065,
 126   4056, 4045, 4034, 4021, 4007, 3992, 3975, 3958,
 127   3939, 3919, 3898, 3876, 3853, 3829, 3804, 3777,
 128   3750, 3722, 3692, 3662, 3630, 3598, 3565, 3530,
 129   3495, 3459, 3423, 3385, 3346, 3307, 3267, 3226,
 130   3185, 3143, 3100, 3057, 3013, 2968, 2923, 2877,
 131   2831, 2784, 2737, 2690, 2642, 2594, 2545, 2496,
 132   2447, 2398, 2348, 2298, 2248, 2198, 2148, 2098,
 133   2048, 1997, 1947, 1897, 1847, 1797, 1747, 1697,
 134   1648, 1599, 1550, 1501, 1453, 1405, 1358, 1311,
 135   1264, 1218, 1172, 1127, 1082, 1038,  995,  952,
 136    910,  869,  828,  788,  749,  710,  672,  636,
 137    600,  565,  530,  497,  465,  433,  403,  373,
 138    345,  318,  291,  266,  242,  219,  197,  176,
 139    156,  137,  120,  103,   88,   74,   61,   50,
 140     39,   30,   22,   15,   10,    6,    2,    1,
 141      0,    1,    2,    6,   10,   15,   22,   30,
 142     39,   50,   61,   74,   88,  103,  120,  137,
 143    156,  176,  197,  219,  242,  266,  291,  318,
 144    345,  373,  403,  433,  465,  497,  530,  565,
 145    600,  636,  672,  710,  749,  788,  828,  869,
 146    910,  952,  995, 1038, 1082, 1127, 1172, 1218,
 147   1264, 1311, 1358, 1405, 1453, 1501, 1550, 1599,
 148   1648, 1697, 1747, 1797, 1847, 1897, 1947, 1997
 149 };
 150
 151 const uint16_t DACLookup_FullSine_7Bit[128] =
 152 {
 153   2048, 2148, 2248, 2348, 2447, 2545, 2642, 2737,
 154   2831, 2923, 3013, 3100, 3185, 3267, 3346, 3423,
 155   3495, 3565, 3630, 3692, 3750, 3804, 3853, 3898,
 156   3939, 3975, 4007, 4034, 4056, 4073, 4085, 4093,
 157   4095, 4093, 4085, 4073, 4056, 4034, 4007, 3975,
 158   3939, 3898, 3853, 3804, 3750, 3692, 3630, 3565,
 159   3495, 3423, 3346, 3267, 3185, 3100, 3013, 2923,
 160   2831, 2737, 2642, 2545, 2447, 2348, 2248, 2148,
 161   2048, 1947, 1847, 1747, 1648, 1550, 1453, 1358,
 162   1264, 1172, 1082,  995,  910,  828,  749,  672,
 163    600,  530,  465,  403,  345,  291,  242,  197,
 164    156,  120,   88,   61,   39,   22,   10,    2,
 165      0,    2,   10,   22,   39,   61,   88,  120,
 166    156,  197,  242,  291,  345,  403,  465,  530,
 167    600,  672,  749,  828,  910,  995, 1082, 1172,
 168   1264, 1358, 1453, 1550, 1648, 1747, 1847, 1947
 169 };
 170
 171 const uint16_t DACLookup_FullSine_6Bit[64] =
 172 {
 173   2048, 2248, 2447, 2642, 2831, 3013, 3185, 3346,
 174   3495, 3630, 3750, 3853, 3939, 4007, 4056, 4085,
 175   4095, 4085, 4056, 4007, 3939, 3853, 3750, 3630,
 176   3495, 3346, 3185, 3013, 2831, 2642, 2447, 2248,
 177   2048, 1847, 1648, 1453, 1264, 1082,  910,  749,
 178    600,  465,  345,  242,  156,   88,   39,   10,
 179      0,   10,   39,   88,  156,  242,  345,  465,
 180    600,  749,  910, 1082, 1264, 1453, 1648, 1847
 181 };
 182
 183 const uint16_t DACLookup_FullSine_5Bit[32] =
 184 {
 185   2048, 2447, 2831, 3185, 3495, 3750, 3939, 4056,
 186   4095, 4056, 3939, 3750, 3495, 3185, 2831, 2447,
 187   2048, 1648, 1264,  910,  600,  345,  156,   39,
 188      0,   39,  156,  345,  600,  910, 1264, 1648
 189 };
 190
 191 #endif