#include <avr/io.h> #include <avr/interrupt.h> #include <avr/pgmspace.h> #define SINE_LENGTH 2048 const uint8_t sinewave[] PROGMEM= //2048 values { 0x80,0x80,0x80,0x81,0x81,0x81,0x82,0x82, 0x83,0x83,0x83,0x84,0x84,0x85,0x85,0x85, 0x86,0x86,0x87,0x87,0x87,0x88,0x88,0x88, 0x89,0x89,0x8a,0x8a,0x8a,0x8b,0x8b,0x8c, 0x8c,0x8c,0x8d,0x8d,0x8e,0x8e,0x8e,0x8f, 0x8f,0x8f,0x90,0x90,0x91,0x91,0x91,0x92, 0x92,0x93,0x93,0x93,0x94,0x94,0x95,0x95, 0x95,0x96,0x96,0x96,0x97,0x97,0x98,0x98, 0x98,0x99,0x99,0x9a,0x9a,0x9a,0x9b,0x9b, 0x9b,0x9c,0x9c,0x9d,0x9d,0x9d,0x9e,0x9e, 0x9e,0x9f,0x9f,0xa0,0xa0,0xa0,0xa1,0xa1, 0xa2,0xa2,0xa2,0xa3,0xa3,0xa3,0xa4,0xa4, 0xa5,0xa5,0xa5,0xa6,0xa6,0xa6,0xa7,0xa7, 0xa7,0xa8,0xa8,0xa9,0xa9,0xa9,0xaa,0xaa, 0xaa,0xab,0xab,0xac,0xac,0xac,0xad,0xad, 0xad,0xae,0xae,0xae,0xaf,0xaf,0xb0,0xb0, 0xb0,0xb1,0xb1,0xb1,0xb2,0xb2,0xb2,0xb3, 0xb3,0xb4,0xb4,0xb4,0xb5,0xb5,0xb5,0xb6, 0xb6,0xb6,0xb7,0xb7,0xb7,0xb8,0xb8,0xb8, 0xb9,0xb9,0xba,0xba,0xba,0xbb,0xbb,0xbb, 0xbc,0xbc,0xbc,0xbd,0xbd,0xbd,0xbe,0xbe, 0xbe,0xbf,0xbf,0xbf,0xc0,0xc0,0xc0,0xc1, 0xc1,0xc1,0xc2,0xc2,0xc2,0xc3,0xc3,0xc3, 0xc4,0xc4,0xc4,0xc5,0xc5,0xc5,0xc6,0xc6, 0xc6,0xc7,0xc7,0xc7,0xc8,0xc8,0xc8,0xc9, 0xc9,0xc9,0xca,0xca,0xca,0xcb,0xcb,0xcb, 0xcb,0xcc,0xcc,0xcc,0xcd,0xcd,0xcd,0xce, 0xce,0xce,0xcf,0xcf,0xcf,0xcf,0xd0,0xd0, 0xd0,0xd1,0xd1,0xd1,0xd2,0xd2,0xd2,0xd2, 0xd3,0xd3,0xd3,0xd4,0xd4,0xd4,0xd5,0xd5, 0xd5,0xd5,0xd6,0xd6,0xd6,0xd7,0xd7,0xd7, 0xd7,0xd8,0xd8,0xd8,0xd9,0xd9,0xd9,0xd9, 0xda,0xda,0xda,0xda,0xdb,0xdb,0xdb,0xdc, 0xdc,0xdc,0xdc,0xdd,0xdd,0xdd,0xdd,0xde, 0xde,0xde,0xde,0xdf,0xdf,0xdf,0xe0,0xe0, 0xe0,0xe0,0xe1,0xe1,0xe1,0xe1,0xe2,0xe2, 0xe2,0xe2,0xe3,0xe3,0xe3,0xe3,0xe4,0xe4, 0xe4,0xe4,0xe4,0xe5,0xe5,0xe5,0xe5,0xe6, 0xe6,0xe6,0xe6,0xe7,0xe7,0xe7,0xe7,0xe8, 0xe8,0xe8,0xe8,0xe8,0xe9,0xe9,0xe9,0xe9, 0xea,0xea,0xea,0xea,0xea,0xeb,0xeb,0xeb, 0xeb,0xeb,0xec,0xec,0xec,0xec,0xec,0xed, 0xed,0xed,0xed,0xed,0xee,0xee,0xee,0xee, 0xee,0xef,0xef,0xef,0xef,0xef,0xf0,0xf0, 0xf0,0xf0,0xf0,0xf0,0xf1,0xf1,0xf1,0xf1, 0xf1,0xf2,0xf2,0xf2,0xf2,0xf2,0xf2,0xf3, 0xf3,0xf3,0xf3,0xf3,0xf3,0xf4,0xf4,0xf4, 0xf4,0xf4,0xf4,0xf5,0xf5,0xf5,0xf5,0xf5, 0xf5,0xf5,0xf6,0xf6,0xf6,0xf6,0xf6,0xf6, 0xf6,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7, 0xf8,0xf8,0xf8,0xf8,0xf8,0xf8,0xf8,0xf8, 0xf9,0xf9,0xf9,0xf9,0xf9,0xf9,0xf9,0xf9, 0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,0xfa, 0xfa,0xfa,0xfb,0xfb,0xfb,0xfb,0xfb,0xfb, 0xfb,0xfb,0xfb,0xfb,0xfc,0xfc,0xfc,0xfc, 0xfc,0xfc,0xfc,0xfc,0xfc,0xfc,0xfc,0xfc, 0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfd, 0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfe,0xfe, 0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe, 0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe, 0xfe,0xfe,0xfe,0xfe,0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff,0xff,0xfe,0xfe,0xfe, 0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe, 0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe, 0xfe,0xfe,0xfe,0xfd,0xfd,0xfd,0xfd,0xfd, 0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfd,0xfd, 0xfd,0xfc,0xfc,0xfc,0xfc,0xfc,0xfc,0xfc, 0xfc,0xfc,0xfc,0xfc,0xfc,0xfb,0xfb,0xfb, 0xfb,0xfb,0xfb,0xfb,0xfb,0xfb,0xfb,0xfa, 0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,0xfa,0xfa, 0xfa,0xf9,0xf9,0xf9,0xf9,0xf9,0xf9,0xf9, 0xf9,0xf8,0xf8,0xf8,0xf8,0xf8,0xf8,0xf8, 0xf8,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7, 0xf6,0xf6,0xf6,0xf6,0xf6,0xf6,0xf6,0xf5, 0xf5,0xf5,0xf5,0xf5,0xf5,0xf5,0xf4,0xf4, 0xf4,0xf4,0xf4,0xf4,0xf3,0xf3,0xf3,0xf3, 0xf3,0xf3,0xf2,0xf2,0xf2,0xf2,0xf2,0xf2, 0xf1,0xf1,0xf1,0xf1,0xf1,0xf0,0xf0,0xf0, 0xf0,0xf0,0xf0,0xef,0xef,0xef,0xef,0xef, 0xee,0xee,0xee,0xee,0xee,0xed,0xed,0xed, 0xed,0xed,0xec,0xec,0xec,0xec,0xec,0xeb, 0xeb,0xeb,0xeb,0xeb,0xea,0xea,0xea,0xea, 0xea,0xe9,0xe9,0xe9,0xe9,0xe8,0xe8,0xe8, 0xe8,0xe8,0xe7,0xe7,0xe7,0xe7,0xe6,0xe6, 0xe6,0xe6,0xe5,0xe5,0xe5,0xe5,0xe4,0xe4, 0xe4,0xe4,0xe4,0xe3,0xe3,0xe3,0xe3,0xe2, 0xe2,0xe2,0xe2,0xe1,0xe1,0xe1,0xe1,0xe0, 0xe0,0xe0,0xe0,0xdf,0xdf,0xdf,0xde,0xde, 0xde,0xde,0xdd,0xdd,0xdd,0xdd,0xdc,0xdc, 0xdc,0xdc,0xdb,0xdb,0xdb,0xda,0xda,0xda, 0xda,0xd9,0xd9,0xd9,0xd9,0xd8,0xd8,0xd8, 0xd7,0xd7,0xd7,0xd7,0xd6,0xd6,0xd6,0xd5, 0xd5,0xd5,0xd5,0xd4,0xd4,0xd4,0xd3,0xd3, 0xd3,0xd2,0xd2,0xd2,0xd2,0xd1,0xd1,0xd1, 0xd0,0xd0,0xd0,0xcf,0xcf,0xcf,0xcf,0xce, 0xce,0xce,0xcd,0xcd,0xcd,0xcc,0xcc,0xcc, 0xcb,0xcb,0xcb,0xcb,0xca,0xca,0xca,0xc9, 0xc9,0xc9,0xc8,0xc8,0xc8,0xc7,0xc7,0xc7, 0xc6,0xc6,0xc6,0xc5,0xc5,0xc5,0xc4,0xc4, 0xc4,0xc3,0xc3,0xc3,0xc2,0xc2,0xc2,0xc1, 0xc1,0xc1,0xc0,0xc0,0xc0,0xbf,0xbf,0xbf, 0xbe,0xbe,0xbe,0xbd,0xbd,0xbd,0xbc,0xbc, 0xbc,0xbb,0xbb,0xbb,0xba,0xba,0xba,0xb9, 0xb9,0xb8,0xb8,0xb8,0xb7,0xb7,0xb7,0xb6, 0xb6,0xb6,0xb5,0xb5,0xb5,0xb4,0xb4,0xb4, 0xb3,0xb3,0xb2,0xb2,0xb2,0xb1,0xb1,0xb1, 0xb0,0xb0,0xb0,0xaf,0xaf,0xae,0xae,0xae, 0xad,0xad,0xad,0xac,0xac,0xac,0xab,0xab, 0xaa,0xaa,0xaa,0xa9,0xa9,0xa9,0xa8,0xa8, 0xa7,0xa7,0xa7,0xa6,0xa6,0xa6,0xa5,0xa5, 0xa5,0xa4,0xa4,0xa3,0xa3,0xa3,0xa2,0xa2, 0xa2,0xa1,0xa1,0xa0,0xa0,0xa0,0x9f,0x9f, 0x9e,0x9e,0x9e,0x9d,0x9d,0x9d,0x9c,0x9c, 0x9b,0x9b,0x9b,0x9a,0x9a,0x9a,0x99,0x99, 0x98,0x98,0x98,0x97,0x97,0x96,0x96,0x96, 0x95,0x95,0x95,0x94,0x94,0x93,0x93,0x93, 0x92,0x92,0x91,0x91,0x91,0x90,0x90,0x8f, 0x8f,0x8f,0x8e,0x8e,0x8e,0x8d,0x8d,0x8c, 0x8c,0x8c,0x8b,0x8b,0x8a,0x8a,0x8a,0x89, 0x89,0x88,0x88,0x88,0x87,0x87,0x87,0x86, 0x86,0x85,0x85,0x85,0x84,0x84,0x83,0x83, 0x83,0x82,0x82,0x81,0x81,0x81,0x80,0x80, 0x80,0x7f,0x7f,0x7e,0x7e,0x7e,0x7d,0x7d, 0x7c,0x7c,0x7c,0x7b,0x7b,0x7a,0x7a,0x7a, 0x79,0x79,0x78,0x78,0x78,0x77,0x77,0x77, 0x76,0x76,0x75,0x75,0x75,0x74,0x74,0x73, 0x73,0x73,0x72,0x72,0x71,0x71,0x71,0x70, 0x70,0x70,0x6f,0x6f,0x6e,0x6e,0x6e,0x6d, 0x6d,0x6c,0x6c,0x6c,0x6b,0x6b,0x6a,0x6a, 0x6a,0x69,0x69,0x69,0x68,0x68,0x67,0x67, 0x67,0x66,0x66,0x65,0x65,0x65,0x64,0x64, 0x64,0x63,0x63,0x62,0x62,0x62,0x61,0x61, 0x61,0x60,0x60,0x5f,0x5f,0x5f,0x5e,0x5e, 0x5d,0x5d,0x5d,0x5c,0x5c,0x5c,0x5b,0x5b, 0x5a,0x5a,0x5a,0x59,0x59,0x59,0x58,0x58, 0x58,0x57,0x57,0x56,0x56,0x56,0x55,0x55, 0x55,0x54,0x54,0x53,0x53,0x53,0x52,0x52, 0x52,0x51,0x51,0x51,0x50,0x50,0x4f,0x4f, 0x4f,0x4e,0x4e,0x4e,0x4d,0x4d,0x4d,0x4c, 0x4c,0x4b,0x4b,0x4b,0x4a,0x4a,0x4a,0x49, 0x49,0x49,0x48,0x48,0x48,0x47,0x47,0x47, 0x46,0x46,0x45,0x45,0x45,0x44,0x44,0x44, 0x43,0x43,0x43,0x42,0x42,0x42,0x41,0x41, 0x41,0x40,0x40,0x40,0x3f,0x3f,0x3f,0x3e, 0x3e,0x3e,0x3d,0x3d,0x3d,0x3c,0x3c,0x3c, 0x3b,0x3b,0x3b,0x3a,0x3a,0x3a,0x39,0x39, 0x39,0x38,0x38,0x38,0x37,0x37,0x37,0x36, 0x36,0x36,0x35,0x35,0x35,0x34,0x34,0x34, 0x34,0x33,0x33,0x33,0x32,0x32,0x32,0x31, 0x31,0x31,0x30,0x30,0x30,0x30,0x2f,0x2f, 0x2f,0x2e,0x2e,0x2e,0x2d,0x2d,0x2d,0x2d, 0x2c,0x2c,0x2c,0x2b,0x2b,0x2b,0x2a,0x2a, 0x2a,0x2a,0x29,0x29,0x29,0x28,0x28,0x28, 0x28,0x27,0x27,0x27,0x26,0x26,0x26,0x26, 0x25,0x25,0x25,0x25,0x24,0x24,0x24,0x23, 0x23,0x23,0x23,0x22,0x22,0x22,0x22,0x21, 0x21,0x21,0x21,0x20,0x20,0x20,0x1f,0x1f, 0x1f,0x1f,0x1e,0x1e,0x1e,0x1e,0x1d,0x1d, 0x1d,0x1d,0x1c,0x1c,0x1c,0x1c,0x1b,0x1b, 0x1b,0x1b,0x1b,0x1a,0x1a,0x1a,0x1a,0x19, 0x19,0x19,0x19,0x18,0x18,0x18,0x18,0x17, 0x17,0x17,0x17,0x17,0x16,0x16,0x16,0x16, 0x15,0x15,0x15,0x15,0x15,0x14,0x14,0x14, 0x14,0x14,0x13,0x13,0x13,0x13,0x13,0x12, 0x12,0x12,0x12,0x12,0x11,0x11,0x11,0x11, 0x11,0x10,0x10,0x10,0x10,0x10,0xf,0xf, 0xf,0xf,0xf,0xf,0xe,0xe,0xe,0xe, 0xe,0xd,0xd,0xd,0xd,0xd,0xd,0xc, 0xc,0xc,0xc,0xc,0xc,0xb,0xb,0xb, 0xb,0xb,0xb,0xa,0xa,0xa,0xa,0xa, 0xa,0xa,0x9,0x9,0x9,0x9,0x9,0x9, 0x9,0x8,0x8,0x8,0x8,0x8,0x8,0x8, 0x7,0x7,0x7,0x7,0x7,0x7,0x7,0x7, 0x6,0x6,0x6,0x6,0x6,0x6,0x6,0x6, 0x5,0x5,0x5,0x5,0x5,0x5,0x5,0x5, 0x5,0x5,0x4,0x4,0x4,0x4,0x4,0x4, 0x4,0x4,0x4,0x4,0x3,0x3,0x3,0x3, 0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3, 0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2, 0x2,0x2,0x2,0x2,0x2,0x2,0x1,0x1, 0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1, 0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1, 0x1,0x1,0x1,0x1,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0, 0x0,0x0,0x0,0x0,0x0,0x1,0x1,0x1, 0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1, 0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1, 0x1,0x1,0x1,0x2,0x2,0x2,0x2,0x2, 0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2, 0x2,0x3,0x3,0x3,0x3,0x3,0x3,0x3, 0x3,0x3,0x3,0x3,0x3,0x4,0x4,0x4, 0x4,0x4,0x4,0x4,0x4,0x4,0x4,0x5, 0x5,0x5,0x5,0x5,0x5,0x5,0x5,0x5, 0x5,0x6,0x6,0x6,0x6,0x6,0x6,0x6, 0x6,0x7,0x7,0x7,0x7,0x7,0x7,0x7, 0x7,0x8,0x8,0x8,0x8,0x8,0x8,0x8, 0x9,0x9,0x9,0x9,0x9,0x9,0x9,0xa, 0xa,0xa,0xa,0xa,0xa,0xa,0xb,0xb, 0xb,0xb,0xb,0xb,0xc,0xc,0xc,0xc, 0xc,0xc,0xd,0xd,0xd,0xd,0xd,0xd, 0xe,0xe,0xe,0xe,0xe,0xf,0xf,0xf, 0xf,0xf,0xf,0x10,0x10,0x10,0x10,0x10, 0x11,0x11,0x11,0x11,0x11,0x12,0x12,0x12, 0x12,0x12,0x13,0x13,0x13,0x13,0x13,0x14, 0x14,0x14,0x14,0x14,0x15,0x15,0x15,0x15, 0x15,0x16,0x16,0x16,0x16,0x17,0x17,0x17, 0x17,0x17,0x18,0x18,0x18,0x18,0x19,0x19, 0x19,0x19,0x1a,0x1a,0x1a,0x1a,0x1b,0x1b, 0x1b,0x1b,0x1b,0x1c,0x1c,0x1c,0x1c,0x1d, 0x1d,0x1d,0x1d,0x1e,0x1e,0x1e,0x1e,0x1f, 0x1f,0x1f,0x1f,0x20,0x20,0x20,0x21,0x21, 0x21,0x21,0x22,0x22,0x22,0x22,0x23,0x23, 0x23,0x23,0x24,0x24,0x24,0x25,0x25,0x25, 0x25,0x26,0x26,0x26,0x26,0x27,0x27,0x27, 0x28,0x28,0x28,0x28,0x29,0x29,0x29,0x2a, 0x2a,0x2a,0x2a,0x2b,0x2b,0x2b,0x2c,0x2c, 0x2c,0x2d,0x2d,0x2d,0x2d,0x2e,0x2e,0x2e, 0x2f,0x2f,0x2f,0x30,0x30,0x30,0x30,0x31, 0x31,0x31,0x32,0x32,0x32,0x33,0x33,0x33, 0x34,0x34,0x34,0x34,0x35,0x35,0x35,0x36, 0x36,0x36,0x37,0x37,0x37,0x38,0x38,0x38, 0x39,0x39,0x39,0x3a,0x3a,0x3a,0x3b,0x3b, 0x3b,0x3c,0x3c,0x3c,0x3d,0x3d,0x3d,0x3e, 0x3e,0x3e,0x3f,0x3f,0x3f,0x40,0x40,0x40, 0x41,0x41,0x41,0x42,0x42,0x42,0x43,0x43, 0x43,0x44,0x44,0x44,0x45,0x45,0x45,0x46, 0x46,0x47,0x47,0x47,0x48,0x48,0x48,0x49, 0x49,0x49,0x4a,0x4a,0x4a,0x4b,0x4b,0x4b, 0x4c,0x4c,0x4d,0x4d,0x4d,0x4e,0x4e,0x4e, 0x4f,0x4f,0x4f,0x50,0x50,0x51,0x51,0x51, 0x52,0x52,0x52,0x53,0x53,0x53,0x54,0x54, 0x55,0x55,0x55,0x56,0x56,0x56,0x57,0x57, 0x58,0x58,0x58,0x59,0x59,0x59,0x5a,0x5a, 0x5a,0x5b,0x5b,0x5c,0x5c,0x5c,0x5d,0x5d, 0x5d,0x5e,0x5e,0x5f,0x5f,0x5f,0x60,0x60, 0x61,0x61,0x61,0x62,0x62,0x62,0x63,0x63, 0x64,0x64,0x64,0x65,0x65,0x65,0x66,0x66, 0x67,0x67,0x67,0x68,0x68,0x69,0x69,0x69, 0x6a,0x6a,0x6a,0x6b,0x6b,0x6c,0x6c,0x6c, 0x6d,0x6d,0x6e,0x6e,0x6e,0x6f,0x6f,0x70, 0x70,0x70,0x71,0x71,0x71,0x72,0x72,0x73, 0x73,0x73,0x74,0x74,0x75,0x75,0x75,0x76, 0x76,0x77,0x77,0x77,0x78,0x78,0x78,0x79, 0x79,0x7a,0x7a,0x7a,0x7b,0x7b,0x7c,0x7c, 0x7c,0x7d,0x7d,0x7e,0x7e,0x7e,0x7f,0x7f };