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manchester.h
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manchester.h
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const uint8_t ManchesterEncode[0x10] = // lookup table for 4-bit nibbles for quick Manchester encoding
{
0xAA, // hex: 0, bin: 0000, manch: 10101010
0xA9, // hex: 1, bin: 0001, manch: 10101001
0xA6, // hex: 2, bin: 0010, manch: 10100110
0xA5, // hex: 3, bin: 0011, manch: 10100101
0x9A, // hex: 4, bin: 0100, manch: 10011010
0x99, // hex: 5, bin: 0101, manch: 10011001
0x96, // hex: 6, bin: 0110, manch: 10010110
0x95, // hex: 7, bin: 0111, manch: 10010101
0x6A, // hex: 8, bin: 1000, manch: 01101010
0x69, // hex: 9, bin: 1001, manch: 01101001
0x66, // hex: A, bin: 1010, manch: 01100110
0x65, // hex: B, bin: 1011, manch: 01100101
0x5A, // hex: C, bin: 1100, manch: 01011010
0x59, // hex: D, bin: 1101, manch: 01011001
0x56, // hex: E, bin: 1110, manch: 01010110
0x55 // hex: F, bin: 1111, manch: 01010101
};
const uint8_t ManchesterDecode[0x100] = // lookup table for quick Manchester decoding
{ // lower nibble has the data bits and the upper nibble the error pattern
0xF0, 0xE1, 0xE0, 0xF1, 0xD2, 0xC3, 0xC2, 0xD3, 0xD0, 0xC1, 0xC0, 0xD1, 0xF2, 0xE3, 0xE2, 0xF3,
0xB4, 0xA5, 0xA4, 0xB5, 0x96, 0x87, 0x86, 0x97, 0x94, 0x85, 0x84, 0x95, 0xB6, 0xA7, 0xA6, 0xB7,
0xB0, 0xA1, 0xA0, 0xB1, 0x92, 0x83, 0x82, 0x93, 0x90, 0x81, 0x80, 0x91, 0xB2, 0xA3, 0xA2, 0xB3,
0xF4, 0xE5, 0xE4, 0xF5, 0xD6, 0xC7, 0xC6, 0xD7, 0xD4, 0xC5, 0xC4, 0xD5, 0xF6, 0xE7, 0xE6, 0xF7,
0x78, 0x69, 0x68, 0x79, 0x5A, 0x4B, 0x4A, 0x5B, 0x58, 0x49, 0x48, 0x59, 0x7A, 0x6B, 0x6A, 0x7B,
0x3C, 0x2D, 0x2C, 0x3D, 0x1E, 0x0F, 0x0E, 0x1F, 0x1C, 0x0D, 0x0C, 0x1D, 0x3E, 0x2F, 0x2E, 0x3F,
0x38, 0x29, 0x28, 0x39, 0x1A, 0x0B, 0x0A, 0x1B, 0x18, 0x09, 0x08, 0x19, 0x3A, 0x2B, 0x2A, 0x3B,
0x7C, 0x6D, 0x6C, 0x7D, 0x5E, 0x4F, 0x4E, 0x5F, 0x5C, 0x4D, 0x4C, 0x5D, 0x7E, 0x6F, 0x6E, 0x7F,
0x70, 0x61, 0x60, 0x71, 0x52, 0x43, 0x42, 0x53, 0x50, 0x41, 0x40, 0x51, 0x72, 0x63, 0x62, 0x73,
0x34, 0x25, 0x24, 0x35, 0x16, 0x07, 0x06, 0x17, 0x14, 0x05, 0x04, 0x15, 0x36, 0x27, 0x26, 0x37,
0x30, 0x21, 0x20, 0x31, 0x12, 0x03, 0x02, 0x13, 0x10, 0x01, 0x00, 0x11, 0x32, 0x23, 0x22, 0x33,
0x74, 0x65, 0x64, 0x75, 0x56, 0x47, 0x46, 0x57, 0x54, 0x45, 0x44, 0x55, 0x76, 0x67, 0x66, 0x77,
0xF8, 0xE9, 0xE8, 0xF9, 0xDA, 0xCB, 0xCA, 0xDB, 0xD8, 0xC9, 0xC8, 0xD9, 0xFA, 0xEB, 0xEA, 0xFB,
0xBC, 0xAD, 0xAC, 0xBD, 0x9E, 0x8F, 0x8E, 0x9F, 0x9C, 0x8D, 0x8C, 0x9D, 0xBE, 0xAF, 0xAE, 0xBF,
0xB8, 0xA9, 0xA8, 0xB9, 0x9A, 0x8B, 0x8A, 0x9B, 0x98, 0x89, 0x88, 0x99, 0xBA, 0xAB, 0xAA, 0xBB,
0xFC, 0xED, 0xEC, 0xFD, 0xDE, 0xCF, 0xCE, 0xDF, 0xDC, 0xCD, 0xCC, 0xDD, 0xFE, 0xEF, 0xEE, 0xFF
} ;