Index: firmware/App/Services/Utilities.c =================================================================== diff -u -reb877ae36c28eb83553ee11ccccf42e2c4a5b4d2 -r28e8929e62c231c1fc9fbcb8efe6613e930a291b --- firmware/App/Services/Utilities.c (.../Utilities.c) (revision eb877ae36c28eb83553ee11ccccf42e2c4a5b4d2) +++ firmware/App/Services/Utilities.c (.../Utilities.c) (revision 28e8929e62c231c1fc9fbcb8efe6613e930a291b) @@ -21,59 +21,79 @@ // ********** private definitions ********** #define INITIAL_CRC16_VAL 0xFFFF +#define INITIAL_CRC08_VAL 0x00 // ********** private data ********** const U16 crc16_table[] = -{ 0x00000,0x1189,0x2312,0x329b,0x4624,0x57ad,0x6536,0x74bf, - 0x08c48,0x9dc1,0xaf5a,0xbed3,0xca6c,0xdbe5,0xe97e,0xf8f7, - 0x01081,0x0108,0x3393,0x221a,0x56a5,0x472c,0x75b7,0x643e, - 0x09cc9,0x8d40,0xbfdb,0xae52,0xdaed,0xcb64,0xf9ff,0xe876, - 0x02102,0x308b,0x0210,0x1399,0x6726,0x76af,0x4434,0x55bd, - 0x0ad4a,0xbcc3,0x8e58,0x9fd1,0xeb6e,0xfae7,0xc87c,0xd9f5, - 0x03183,0x200a,0x1291,0x0318,0x77a7,0x662e,0x54b5,0x453c, - 0x0bdcb,0xac42,0x9ed9,0x8f50,0xfbef,0xea66,0xd8fd,0xc974, - 0x04204,0x538d,0x6116,0x709f,0x0420,0x15a9,0x2732,0x36bb, - 0x0ce4c,0xdfc5,0xed5e,0xfcd7,0x8868,0x99e1,0xab7a,0xbaf3, - 0x05285,0x430c,0x7197,0x601e,0x14a1,0x0528,0x37b3,0x263a, - 0x0decd,0xcf44,0xfddf,0xec56,0x98e9,0x8960,0xbbfb,0xaa72, - 0x06306,0x728f,0x4014,0x519d,0x2522,0x34ab,0x0630,0x17b9, - 0x0ef4e,0xfec7,0xcc5c,0xddd5,0xa96a,0xb8e3,0x8a78,0x9bf1, - 0x07387,0x620e,0x5095,0x411c,0x35a3,0x242a,0x16b1,0x0738, - 0x0ffcf,0xee46,0xdcdd,0xcd54,0xb9eb,0xa862,0x9af9,0x8b70, - 0x08408,0x9581,0xa71a,0xb693,0xc22c,0xd3a5,0xe13e,0xf0b7, - 0x00840,0x19c9,0x2b52,0x3adb,0x4e64,0x5fed,0x6d76,0x7cff, - 0x09489,0x8500,0xb79b,0xa612,0xd2ad,0xc324,0xf1bf,0xe036, - 0x018c1,0x0948,0x3bd3,0x2a5a,0x5ee5,0x4f6c,0x7df7,0x6c7e, - 0x0a50a,0xb483,0x8618,0x9791,0xe32e,0xf2a7,0xc03c,0xd1b5, - 0x02942,0x38cb,0x0a50,0x1bd9,0x6f66,0x7eef,0x4c74,0x5dfd, - 0x0b58b,0xa402,0x9699,0x8710,0xf3af,0xe226,0xd0bd,0xc134, - 0x039c3,0x284a,0x1ad1,0x0b58,0x7fe7,0x6e6e,0x5cf5,0x4d7c, - 0x0c60c,0xd785,0xe51e,0xf497,0x8028,0x91a1,0xa33a,0xb2b3, - 0x04a44,0x5bcd,0x6956,0x78df,0x0c60,0x1de9,0x2f72,0x3efb, - 0x0d68d,0xc704,0xf59f,0xe416,0x90a9,0x8120,0xb3bb,0xa232, - 0x05ac5,0x4b4c,0x79d7,0x685e,0x1ce1,0x0d68,0x3ff3,0x2e7a, - 0x0e70e,0xf687,0xc41c,0xd595,0xa12a,0xb0a3,0x8238,0x93b1, - 0x06b46,0x7acf,0x4854,0x59dd,0x2d62,0x3ceb,0x0e70,0x1ff9, - 0x0f78f,0xe606,0xd49d,0xc514,0xb1ab,0xa022,0x92b9,0x8330, - 0x07bc7,0x6a4e,0x58d5,0x495c,0x3de3,0x2c6a,0x1ef1,0x0f78 +{ 0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf, + 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7, + 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e, + 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876, + 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd, + 0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, + 0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c, + 0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, + 0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb, + 0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3, + 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a, + 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72, + 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9, + 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1, + 0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, + 0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70, + 0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, + 0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff, + 0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036, + 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e, + 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5, + 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd, + 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134, + 0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, + 0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3, + 0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, + 0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, + 0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, + 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1, + 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9, + 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330, + 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78 }; +const U08 crc8_table[] = { + 0, 49, 98, 83, 196, 245, 166, 151, 185, 136, 219, 234, 125, 76, 31, 46, + 67, 114, 33, 16, 135, 182, 229, 212, 250, 203, 152, 169, 62, 15, 92, 109, + 134, 183, 228, 213, 66, 115, 32, 17, 63, 14, 93, 108, 251, 202, 153, 168, + 197, 244, 167, 150, 1, 48, 99, 82, 124, 77, 30, 47, 184, 137, 218, 235, + 61, 12, 95, 110, 249, 200, 155, 170, 132, 181, 230, 215, 64, 113, 34, 19, + 126, 79, 28, 45, 186, 139, 216, 233, 199, 246, 165, 148, 3, 50, 97, 80, + 187, 138, 217, 232, 127, 78, 29, 44, 2, 51, 96, 81, 198, 247, 164, 149, + 248, 201, 154, 171, 60, 13, 94, 111, 65, 112, 35, 18, 133, 180, 231, 214, + 122, 75, 24, 41, 190, 143, 220, 237, 195, 242, 161, 144, 7, 54, 101, 84, + 57, 8, 91, 106, 253, 204, 159, 174, 128, 177, 226, 211, 68, 117, 38, 23, + 252, 205, 158, 175, 56, 9, 90, 107, 69, 116, 39, 22, 129, 176, 227, 210, + 191, 142, 221, 236, 123, 74, 25, 40, 6, 55, 100, 85, 194, 243, 160, 145, + 71, 118, 37, 20, 131, 178, 225, 208, 254, 207, 156, 173, 58, 11, 88, 105, + 4, 53, 102, 87, 192, 241, 162, 147, 189, 140, 223, 238, 121, 72, 27, 42, + 193, 240, 163, 146, 5, 52, 103, 86, 120, 73, 26, 43, 188, 141, 222, 239, + 130, 179, 224, 209, 70, 119, 36, 21, 59, 10, 89, 104, 255, 206, 157, 172 +}; + // ********** private function prototypes ********** /************************************************************************* * @brief crc16 * The crc16 function calculates a 16-bit CRC for a given range of bytes \n - * in memory. + * in memory. Poly = 0x1021. Not reflected. Initial value = 0xFFFF. * @details * Inputs : none * Outputs : none * @param address : pointer to start address of memory range to calculate CRC for * @param len : # of bytes in the memory range to calculate CRC for * @return CRC *************************************************************************/ -U16 crc16( U08 *address, U32 len ) +U16 crc16( const U08 *address, U32 len ) { U16 crc = INITIAL_CRC16_VAL; @@ -86,4 +106,27 @@ return crc; } +/************************************************************************* + * @brief crc8 + * The crc8 function calculates a 8-bit CRC for a given range of bytes \n + * in memory. + * @details + * Inputs : none + * Outputs : none + * @param address : pointer to start address of memory range to calculate CRC for + * @param len : # of bytes in the memory range to calculate CRC for + * @return CRC + *************************************************************************/ +U08 crc8( const U08 *address, U32 len ) +{ + U08 crc = INITIAL_CRC08_VAL; + while ( len-- > 0 ) + { + crc = crc8_table[(*address) ^ crc]; + address++; + } + + return crc; +} +