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Update large DDS sine table to use signed integers.

This commit is contained in:
Stephen Olesen 2015-07-05 16:29:27 -06:00
parent 7131e46ff0
commit 9bcf52ec64
1 changed files with 33 additions and 65 deletions
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98
DDS.h
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@ -70,71 +70,39 @@ typedef uint32_t ddsAccumulator_t;
#ifdef DDS_TABLE_LARGE #ifdef DDS_TABLE_LARGE
// How many bits to keep from the accumulator to look up in this table // How many bits to keep from the accumulator to look up in this table
#define ACCUMULATOR_BIT_SHIFT (ACCUMULATOR_BITS-10) #define ACCUMULATOR_BIT_SHIFT (ACCUMULATOR_BITS-10)
static const uint8_t ddsSineTable[1024] PROGMEM = { static const int8_t ddsSineTable[1024] PROGMEM = {
128,128,129,130,131,131,132,133,134,135,135,136,137,138,138,139, 0, 0, 1, 2, 3, 3, 4, 5, 6, 7, 7, 8, 9, 10, 10, 11, 12, 13, 13, 14, 15, 16, 17, 17, 18, 19, 20, 20, 21, 22, 23, 24,
140,141,142,142,143,144,145,145,146,147,148,149,149,150,151,152, 24, 25, 26, 27, 27, 28, 29, 30, 30, 31, 32, 33, 33, 34, 35, 36, 36, 37, 38, 39, 39, 40, 41, 42, 42, 43, 44, 44, 45, 46, 47, 47,
152,153,154,155,155,156,157,158,158,159,160,161,162,162,163,164, 48, 49, 50, 50, 51, 52, 52, 53, 54, 55, 55, 56, 57, 57, 58, 59, 59, 60, 61, 61, 62, 63, 63, 64, 65, 65, 66, 67, 67, 68, 69, 69,
165,165,166,167,167,168,169,170,170,171,172,173,173,174,175,176, 70, 71, 71, 72, 73, 73, 74, 75, 75, 76, 76, 77, 78, 78, 79, 79, 80, 81, 81, 82, 82, 83, 84, 84, 85, 85, 86, 87, 87, 88, 88, 89,
176,177,178,178,179,180,181,181,182,183,183,184,185,186,186,187, 89, 90, 90, 91, 91, 92, 93, 93, 94, 94, 95, 95, 96, 96, 97, 97, 98, 98, 99, 99, 100, 100, 101, 101, 102, 102, 102, 103, 103, 104, 104, 105,
188,188,189,190,190,191,192,192,193,194,194,195,196,196,197,198, 105, 106, 106, 106, 107, 107, 108, 108, 108, 109, 109, 110, 110, 110, 111, 111, 112, 112, 112, 113, 113, 113, 114, 114, 114, 115, 115, 115, 116, 116, 116, 117,
198,199,200,200,201,202,202,203,203,204,205,205,206,207,207,208, 117, 117, 117, 118, 118, 118, 119, 119, 119, 119, 120, 120, 120, 120, 121, 121, 121, 121, 121, 122, 122, 122, 122, 123, 123, 123, 123, 123, 123, 124, 124, 124,
208,209,210,210,211,211,212,213,213,214,214,215,215,216,217,217, 124, 124, 124, 124, 125, 125, 125, 125, 125, 125, 125, 125, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126,
218,218,219,219,220,220,221,221,222,222,223,224,224,225,225,226, 127, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 126, 125, 125, 125, 125, 125, 125, 125, 125, 124, 124, 124,
226,227,227,228,228,228,229,229,230,230,231,231,232,232,233,233, 124, 124, 124, 124, 123, 123, 123, 123, 123, 123, 122, 122, 122, 122, 121, 121, 121, 121, 121, 120, 120, 120, 120, 119, 119, 119, 119, 118, 118, 118, 117, 117,
234,234,234,235,235,236,236,236,237,237,238,238,238,239,239,240, 117, 117, 116, 116, 116, 115, 115, 115, 114, 114, 114, 113, 113, 113, 112, 112, 112, 111, 111, 110, 110, 110, 109, 109, 108, 108, 108, 107, 107, 106, 106, 106,
240,240,241,241,241,242,242,242,243,243,243,244,244,244,245,245, 105, 105, 104, 104, 103, 103, 102, 102, 102, 101, 101, 100, 100, 99, 99, 98, 98, 97, 97, 96, 96, 95, 95, 94, 94, 93, 93, 92, 91, 91, 90, 90,
245,246,246,246,246,247,247,247,248,248,248,248,249,249,249,249, 89, 89, 88, 88, 87, 87, 86, 85, 85, 84, 84, 83, 82, 82, 81, 81, 80, 79, 79, 78, 78, 77, 76, 76, 75, 75, 74, 73, 73, 72, 71, 71,
250,250,250,250,250,251,251,251,251,251,252,252,252,252,252,252, 70, 69, 69, 68, 67, 67, 66, 65, 65, 64, 63, 63, 62, 61, 61, 60, 59, 59, 58, 57, 57, 56, 55, 55, 54, 53, 52, 52, 51, 50, 50, 49,
253,253,253,253,253,253,253,254,254,254,254,254,254,254,254,254, 48, 47, 47, 46, 45, 44, 44, 43, 42, 42, 41, 40, 39, 39, 38, 37, 36, 36, 35, 34, 33, 33, 32, 31, 30, 30, 29, 28, 27, 27, 26, 25,
254,254,255,255,255,255,255,255,255,255,255,255,255,255,255,255, 24, 24, 23, 22, 21, 20, 20, 19, 18, 17, 17, 16, 15, 14, 13, 13, 12, 11, 10, 10, 9, 8, 7, 7, 6, 5, 4, 3, 3, 2, 1, 0,
255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,254, 0, 0, -1, -2, -3, -3, -4, -5, -6, -7, -7, -8, -9, -10, -10, -11, -12, -13, -13, -14, -15, -16, -17, -17, -18, -19, -20, -20, -21, -22, -23, -24,
254,254,254,254,254,254,254,254,254,254,253,253,253,253,253,253, -24, -25, -26, -27, -27, -28, -29, -30, -30, -31, -32, -33, -33, -34, -35, -36, -36, -37, -38, -39, -39, -40, -41, -42, -42, -43, -44, -44, -45, -46, -47, -47,
253,252,252,252,252,252,252,251,251,251,251,251,250,250,250,250, -48, -49, -50, -50, -51, -52, -52, -53, -54, -55, -55, -56, -57, -57, -58, -59, -59, -60, -61, -61, -62, -63, -63, -64, -65, -65, -66, -67, -67, -68, -69, -69,
250,249,249,249,249,248,248,248,248,247,247,247,246,246,246,246, -70, -71, -71, -72, -73, -73, -74, -75, -75, -76, -76, -77, -78, -78, -79, -79, -80, -81, -81, -82, -82, -83, -84, -84, -85, -85, -86, -87, -87, -88, -88, -89,
245,245,245,244,244,244,243,243,243,242,242,242,241,241,241,240, -89, -90, -90, -91, -91, -92, -93, -93, -94, -94, -95, -95, -96, -96, -97, -97, -98, -98, -99, -99, -100, -100, -101, -101, -102, -102, -102, -103, -103, -104, -104, -105,
240,240,239,239,238,238,238,237,237,236,236,236,235,235,234,234, -105, -106, -106, -106, -107, -107, -108, -108, -108, -109, -109, -110, -110, -110, -111, -111, -112, -112, -112, -113, -113, -113, -114, -114, -114, -115, -115, -115, -116, -116, -116, -117,
234,233,233,232,232,231,231,230,230,229,229,228,228,228,227,227, -117, -117, -117, -118, -118, -118, -119, -119, -119, -119, -120, -120, -120, -120, -121, -121, -121, -121, -121, -122, -122, -122, -122, -123, -123, -123, -123, -123, -123, -124, -124, -124,
226,226,225,225,224,224,223,222,222,221,221,220,220,219,219,218, -124, -124, -124, -124, -125, -125, -125, -125, -125, -125, -125, -125, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126,
218,217,217,216,215,215,214,214,213,213,212,211,211,210,210,209, -127, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -126, -125, -125, -125, -125, -125, -125, -125, -125, -124, -124, -124,
208,208,207,207,206,205,205,204,203,203,202,202,201,200,200,199, -124, -124, -124, -124, -123, -123, -123, -123, -123, -123, -122, -122, -122, -122, -121, -121, -121, -121, -121, -120, -120, -120, -120, -119, -119, -119, -119, -118, -118, -118, -117, -117,
198,198,197,196,196,195,194,194,193,192,192,191,190,190,189,188, -117, -117, -116, -116, -116, -115, -115, -115, -114, -114, -114, -113, -113, -113, -112, -112, -112, -111, -111, -110, -110, -110, -109, -109, -108, -108, -108, -107, -107, -106, -106, -106,
188,187,186,186,185,184,183,183,182,181,181,180,179,178,178,177, -105, -105, -104, -104, -103, -103, -102, -102, -102, -101, -101, -100, -100, -99, -99, -98, -98, -97, -97, -96, -96, -95, -95, -94, -94, -93, -93, -92, -91, -91, -90, -90,
176,176,175,174,173,173,172,171,170,170,169,168,167,167,166,165, -89, -89, -88, -88, -87, -87, -86, -85, -85, -84, -84, -83, -82, -82, -81, -81, -80, -79, -79, -78, -78, -77, -76, -76, -75, -75, -74, -73, -73, -72, -71, -71,
165,164,163,162,162,161,160,159,158,158,157,156,155,155,154,153, -70, -69, -69, -68, -67, -67, -66, -65, -65, -64, -63, -63, -62, -61, -61, -60, -59, -59, -58, -57, -57, -56, -55, -55, -54, -53, -52, -52, -51, -50, -50, -49,
152,152,151,150,149,149,148,147,146,145,145,144,143,142,142,141, -48, -47, -47, -46, -45, -44, -44, -43, -42, -42, -41, -40, -39, -39, -38, -37, -36, -36, -35, -34, -33, -33, -32, -31, -30, -30, -29, -28, -27, -27, -26, -25,
140,139,138,138,137,136,135,135,134,133,132,131,131,130,129,128, -24, -24, -23, -22, -21, -20, -20, -19, -18, -17, -17, -16, -15, -14, -13, -13, -12, -11, -10, -10, -9, -8, -7, -7, -6, -5, -4, -3, -3, -2, -1, 0
128,127,126,125,124,124,123,122,121,120,120,119,118,117,117,116,
115,114,113,113,112,111,110,110,109,108,107,106,106,105,104,103,
103,102,101,100,100,99,98,97,97,96,95,94,93,93,92,91,
90,90,89,88,88,87,86,85,85,84,83,82,82,81,80,79,
79,78,77,77,76,75,74,74,73,72,72,71,70,69,69,68,
67,67,66,65,65,64,63,63,62,61,61,60,59,59,58,57,
57,56,55,55,54,53,53,52,52,51,50,50,49,48,48,47,
47,46,45,45,44,44,43,42,42,41,41,40,40,39,38,38,
37,37,36,36,35,35,34,34,33,33,32,31,31,30,30,29,
29,28,28,27,27,27,26,26,25,25,24,24,23,23,22,22,
21,21,21,20,20,19,19,19,18,18,17,17,17,16,16,15,
15,15,14,14,14,13,13,13,12,12,12,11,11,11,10,10,
10,9,9,9,9,8,8,8,7,7,7,7,6,6,6,6,
5,5,5,5,5,4,4,4,4,4,3,3,3,3,3,3,
2,2,2,2,2,2,2,1,1,1,1,1,1,1,1,1,
1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,
2,3,3,3,3,3,3,4,4,4,4,4,5,5,5,5,
5,6,6,6,6,7,7,7,7,8,8,8,9,9,9,9,
10,10,10,11,11,11,12,12,12,13,13,13,14,14,14,15,
15,15,16,16,17,17,17,18,18,19,19,19,20,20,21,21,
21,22,22,23,23,24,24,25,25,26,26,27,27,27,28,28,
29,29,30,30,31,31,32,33,33,34,34,35,35,36,36,37,
37,38,38,39,40,40,41,41,42,42,43,44,44,45,45,46,
47,47,48,48,49,50,50,51,52,52,53,53,54,55,55,56,
57,57,58,59,59,60,61,61,62,63,63,64,65,65,66,67,
67,68,69,69,70,71,72,72,73,74,74,75,76,77,77,78,
79,79,80,81,82,82,83,84,85,85,86,87,88,88,89,90,
90,91,92,93,93,94,95,96,97,97,98,99,100,100,101,102,
103,103,104,105,106,106,107,108,109,110,110,111,112,113,113,114,
115,116,117,117,118,119,120,120,121,122,123,124,124,125,126,127
}; };
#else #else
#define ACCUMULATOR_BIT_SHIFT (ACCUMULATOR_BITS-8) #define ACCUMULATOR_BIT_SHIFT (ACCUMULATOR_BITS-8)