72 lines
No EOL
3 KiB
C
72 lines
No EOL
3 KiB
C
/**
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* \file
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* Functions and types for CRC checks.
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*
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* Generated on Sat Jun 15 14:34:15 2019
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* by pycrc v0.9.2, https://pycrc.org
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* using the configuration:
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* - Width = 16
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* - Poly = 0xed2f
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* - XorIn = 0xbeef
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* - ReflectIn = False
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* - XorOut = 0x0000
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* - ReflectOut = False
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* - Algorithm = table-driven
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*/
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#include "NVM_CRC.h" /* include the header file generated with pycrc */
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#include <stdlib.h>
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#include <stdint.h>
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/**
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* Static table used for the table_driven implementation.
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*/
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static const NVM_CRC_t crc_table[256] = {
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0x0000, 0xed2f, 0x3771, 0xda5e, 0x6ee2, 0x83cd, 0x5993, 0xb4bc,
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0xddc4, 0x30eb, 0xeab5, 0x079a, 0xb326, 0x5e09, 0x8457, 0x6978,
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0x56a7, 0xbb88, 0x61d6, 0x8cf9, 0x3845, 0xd56a, 0x0f34, 0xe21b,
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0x8b63, 0x664c, 0xbc12, 0x513d, 0xe581, 0x08ae, 0xd2f0, 0x3fdf,
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0xad4e, 0x4061, 0x9a3f, 0x7710, 0xc3ac, 0x2e83, 0xf4dd, 0x19f2,
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0x708a, 0x9da5, 0x47fb, 0xaad4, 0x1e68, 0xf347, 0x2919, 0xc436,
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0xfbe9, 0x16c6, 0xcc98, 0x21b7, 0x950b, 0x7824, 0xa27a, 0x4f55,
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0x262d, 0xcb02, 0x115c, 0xfc73, 0x48cf, 0xa5e0, 0x7fbe, 0x9291,
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0xb7b3, 0x5a9c, 0x80c2, 0x6ded, 0xd951, 0x347e, 0xee20, 0x030f,
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0x6a77, 0x8758, 0x5d06, 0xb029, 0x0495, 0xe9ba, 0x33e4, 0xdecb,
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0xe114, 0x0c3b, 0xd665, 0x3b4a, 0x8ff6, 0x62d9, 0xb887, 0x55a8,
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0x3cd0, 0xd1ff, 0x0ba1, 0xe68e, 0x5232, 0xbf1d, 0x6543, 0x886c,
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0x1afd, 0xf7d2, 0x2d8c, 0xc0a3, 0x741f, 0x9930, 0x436e, 0xae41,
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0xc739, 0x2a16, 0xf048, 0x1d67, 0xa9db, 0x44f4, 0x9eaa, 0x7385,
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0x4c5a, 0xa175, 0x7b2b, 0x9604, 0x22b8, 0xcf97, 0x15c9, 0xf8e6,
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0x919e, 0x7cb1, 0xa6ef, 0x4bc0, 0xff7c, 0x1253, 0xc80d, 0x2522,
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0x8249, 0x6f66, 0xb538, 0x5817, 0xecab, 0x0184, 0xdbda, 0x36f5,
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0x5f8d, 0xb2a2, 0x68fc, 0x85d3, 0x316f, 0xdc40, 0x061e, 0xeb31,
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0xd4ee, 0x39c1, 0xe39f, 0x0eb0, 0xba0c, 0x5723, 0x8d7d, 0x6052,
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0x092a, 0xe405, 0x3e5b, 0xd374, 0x67c8, 0x8ae7, 0x50b9, 0xbd96,
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0x2f07, 0xc228, 0x1876, 0xf559, 0x41e5, 0xacca, 0x7694, 0x9bbb,
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0xf2c3, 0x1fec, 0xc5b2, 0x289d, 0x9c21, 0x710e, 0xab50, 0x467f,
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0x79a0, 0x948f, 0x4ed1, 0xa3fe, 0x1742, 0xfa6d, 0x2033, 0xcd1c,
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0xa464, 0x494b, 0x9315, 0x7e3a, 0xca86, 0x27a9, 0xfdf7, 0x10d8,
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0x35fa, 0xd8d5, 0x028b, 0xefa4, 0x5b18, 0xb637, 0x6c69, 0x8146,
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0xe83e, 0x0511, 0xdf4f, 0x3260, 0x86dc, 0x6bf3, 0xb1ad, 0x5c82,
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0x635d, 0x8e72, 0x542c, 0xb903, 0x0dbf, 0xe090, 0x3ace, 0xd7e1,
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0xbe99, 0x53b6, 0x89e8, 0x64c7, 0xd07b, 0x3d54, 0xe70a, 0x0a25,
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0x98b4, 0x759b, 0xafc5, 0x42ea, 0xf656, 0x1b79, 0xc127, 0x2c08,
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0x4570, 0xa85f, 0x7201, 0x9f2e, 0x2b92, 0xc6bd, 0x1ce3, 0xf1cc,
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0xce13, 0x233c, 0xf962, 0x144d, 0xa0f1, 0x4dde, 0x9780, 0x7aaf,
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0x13d7, 0xfef8, 0x24a6, 0xc989, 0x7d35, 0x901a, 0x4a44, 0xa76b
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};
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NVM_CRC_t NVM_CRC_update(NVM_CRC_t crc, const void *data, size_t data_len)
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{
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const unsigned char *d = (const unsigned char *)data;
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unsigned int tbl_idx;
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while (data_len--) {
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tbl_idx = ((crc >> 8) ^ *d) & 0xff;
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crc = (crc_table[tbl_idx] ^ (crc << 8)) & 0xffff;
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d++;
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}
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return crc & 0xffff;
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} |