| 1 | /*******************************************************************\ |
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| 2 | * * |
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| 3 | * Library : lib_crc * |
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| 4 | * File : lib_crc.h * |
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| 5 | * Author : Lammert Bies 1999-2008 * |
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| 6 | * E-mail : info@lammertbies.nl * |
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| 7 | * Language : ANSI C * |
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| 8 | * * |
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| 9 | * * |
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| 10 | * Description * |
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| 11 | * =========== * |
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| 12 | * * |
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| 13 | * The file lib_crc.h contains public definitions and proto- * |
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| 14 | * types for the CRC functions present in lib_crc.c. * |
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| 15 | * * |
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| 16 | * * |
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| 17 | * Dependencies * |
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| 18 | * ============ * |
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| 19 | * * |
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| 20 | * none * |
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| 21 | * * |
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| 22 | * * |
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| 23 | * Modification history * |
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| 24 | * ==================== * |
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| 25 | * * |
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| 26 | * Date Version Comment * |
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| 27 | * * |
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| 28 | * 2008-04-20 1.16 Added CRC-CCITT routine for Kermit * |
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| 29 | * * |
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| 30 | * 2007-04-01 1.15 Added CRC16 calculation for Modbus * |
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| 31 | * * |
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| 32 | * 2007-03-28 1.14 Added CRC16 routine for Sick devices * |
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| 33 | * * |
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| 34 | * 2005-12-17 1.13 Added CRC-CCITT with initial 0x1D0F * |
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| 35 | * * |
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| 36 | * 2005-02-14 1.12 Added CRC-CCITT with initial 0x0000 * |
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| 37 | * * |
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| 38 | * 2005-02-05 1.11 Fixed bug in CRC-DNP routine * |
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| 39 | * * |
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| 40 | * 2005-02-04 1.10 Added CRC-DNP routines * |
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| 41 | * * |
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| 42 | * 2005-01-07 1.02 Changes in tst_crc.c * |
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| 43 | * * |
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| 44 | * 1999-02-21 1.01 Added FALSE and TRUE mnemonics * |
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| 45 | * * |
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| 46 | * 1999-01-22 1.00 Initial source * |
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| 47 | * * |
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| 48 | \*******************************************************************/ |
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| 49 | |
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| 50 | |
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| 51 | |
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| 52 | #define CRC_VERSION "1.16" |
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| 53 | |
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| 54 | |
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| 55 | |
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| 56 | #define FALSE 0 |
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| 57 | #define TRUE 1 |
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| 58 | |
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| 59 | |
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| 60 | |
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| 61 | unsigned short update_crc_16( unsigned short crc, char c ); |
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| 62 | unsigned long update_crc_32( unsigned long crc, char c ); |
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| 63 | unsigned short update_crc_ccitt( unsigned short crc, char c ); |
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| 64 | unsigned short update_crc_dnp( unsigned short crc, char c ); |
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| 65 | unsigned short update_crc_kermit( unsigned short crc, char c ); |
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| 66 | unsigned short update_crc_sick( unsigned short crc, char c, char prev_byte ); |
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