Bluetooth Low Energy for Smart Plug
Dependencies: BLE_API mbed nRF51822
Fork of SmartPlugBLE by
crc2.h@4:721ae30c92f8, 2015-07-14 (annotated)
- Committer:
- Slepnir
- Date:
- Tue Jul 14 10:10:19 2015 +0000
- Revision:
- 4:721ae30c92f8
- Parent:
- 3:aaa92c61931a
For debugging
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Slepnir | 3:aaa92c61931a | 1 | /********************************************************************** |
Slepnir | 3:aaa92c61931a | 2 | * |
Slepnir | 3:aaa92c61931a | 3 | * Filename: crc.h |
Slepnir | 3:aaa92c61931a | 4 | * |
Slepnir | 3:aaa92c61931a | 5 | * Description: A header file describing the various CRC standards. |
Slepnir | 3:aaa92c61931a | 6 | * |
Slepnir | 3:aaa92c61931a | 7 | * Notes: |
Slepnir | 3:aaa92c61931a | 8 | * |
Slepnir | 3:aaa92c61931a | 9 | * |
Slepnir | 3:aaa92c61931a | 10 | * Copyright (c) 2000 by Michael Barr. This software is placed into |
Slepnir | 3:aaa92c61931a | 11 | * the public domain and may be used for any purpose. However, this |
Slepnir | 3:aaa92c61931a | 12 | * notice must not be changed or removed and no warranty is either |
Slepnir | 3:aaa92c61931a | 13 | * expressed or implied by its publication or distribution. |
Slepnir | 3:aaa92c61931a | 14 | **********************************************************************/ |
Slepnir | 3:aaa92c61931a | 15 | |
Slepnir | 3:aaa92c61931a | 16 | #ifndef _crc2_h |
Slepnir | 3:aaa92c61931a | 17 | #define _crc2_h |
Slepnir | 3:aaa92c61931a | 18 | |
Slepnir | 3:aaa92c61931a | 19 | |
Slepnir | 3:aaa92c61931a | 20 | #define FALSE 0 |
Slepnir | 3:aaa92c61931a | 21 | #define TRUE !FALSE |
Slepnir | 3:aaa92c61931a | 22 | |
Slepnir | 3:aaa92c61931a | 23 | /* |
Slepnir | 3:aaa92c61931a | 24 | * Select the CRC standard from the list that follows. |
Slepnir | 3:aaa92c61931a | 25 | */ |
Slepnir | 3:aaa92c61931a | 26 | #define CRC_CCITT |
Slepnir | 3:aaa92c61931a | 27 | |
Slepnir | 3:aaa92c61931a | 28 | |
Slepnir | 3:aaa92c61931a | 29 | #if defined(CRC_CCITT) |
Slepnir | 3:aaa92c61931a | 30 | |
Slepnir | 3:aaa92c61931a | 31 | typedef unsigned short crc; |
Slepnir | 3:aaa92c61931a | 32 | |
Slepnir | 3:aaa92c61931a | 33 | #define CRC_NAME "CRC-CCITT" |
Slepnir | 3:aaa92c61931a | 34 | #define POLYNOMIAL 0x1021 |
Slepnir | 3:aaa92c61931a | 35 | #define INITIAL_REMAINDER 0xFFFF |
Slepnir | 3:aaa92c61931a | 36 | #define FINAL_XOR_VALUE 0x0000 |
Slepnir | 3:aaa92c61931a | 37 | #define REFLECT_DATA FALSE |
Slepnir | 3:aaa92c61931a | 38 | #define REFLECT_REMAINDER FALSE |
Slepnir | 3:aaa92c61931a | 39 | #define CHECK_VALUE 0x29B1 |
Slepnir | 3:aaa92c61931a | 40 | |
Slepnir | 3:aaa92c61931a | 41 | #elif defined(CRC16) |
Slepnir | 3:aaa92c61931a | 42 | |
Slepnir | 3:aaa92c61931a | 43 | typedef unsigned short crc; |
Slepnir | 3:aaa92c61931a | 44 | |
Slepnir | 3:aaa92c61931a | 45 | #define CRC_NAME "CRC-16" |
Slepnir | 3:aaa92c61931a | 46 | #define POLYNOMIAL 0x8005 |
Slepnir | 3:aaa92c61931a | 47 | #define INITIAL_REMAINDER 0x0000 |
Slepnir | 3:aaa92c61931a | 48 | #define FINAL_XOR_VALUE 0x0000 |
Slepnir | 3:aaa92c61931a | 49 | #define REFLECT_DATA TRUE |
Slepnir | 3:aaa92c61931a | 50 | #define REFLECT_REMAINDER TRUE |
Slepnir | 3:aaa92c61931a | 51 | #define CHECK_VALUE 0xBB3D |
Slepnir | 3:aaa92c61931a | 52 | |
Slepnir | 3:aaa92c61931a | 53 | #elif defined(CRC32) |
Slepnir | 3:aaa92c61931a | 54 | |
Slepnir | 3:aaa92c61931a | 55 | typedef unsigned long crc; |
Slepnir | 3:aaa92c61931a | 56 | |
Slepnir | 3:aaa92c61931a | 57 | #define CRC_NAME "CRC-32" |
Slepnir | 3:aaa92c61931a | 58 | #define POLYNOMIAL 0x04C11DB7 |
Slepnir | 3:aaa92c61931a | 59 | #define INITIAL_REMAINDER 0xFFFFFFFF |
Slepnir | 3:aaa92c61931a | 60 | #define FINAL_XOR_VALUE 0xFFFFFFFF |
Slepnir | 3:aaa92c61931a | 61 | #define REFLECT_DATA TRUE |
Slepnir | 3:aaa92c61931a | 62 | #define REFLECT_REMAINDER TRUE |
Slepnir | 3:aaa92c61931a | 63 | #define CHECK_VALUE 0xCBF43926 |
Slepnir | 3:aaa92c61931a | 64 | |
Slepnir | 3:aaa92c61931a | 65 | #else |
Slepnir | 3:aaa92c61931a | 66 | |
Slepnir | 3:aaa92c61931a | 67 | #error "One of CRC_CCITT, CRC16, or CRC32 must be #define'd." |
Slepnir | 3:aaa92c61931a | 68 | |
Slepnir | 3:aaa92c61931a | 69 | #endif |
Slepnir | 3:aaa92c61931a | 70 | |
Slepnir | 3:aaa92c61931a | 71 | |
Slepnir | 3:aaa92c61931a | 72 | void crcInit(); |
Slepnir | 3:aaa92c61931a | 73 | crc crcSlow(unsigned char const message[], int nBytes); |
Slepnir | 3:aaa92c61931a | 74 | crc crcFast(unsigned char const message[], int nBytes); |
Slepnir | 3:aaa92c61931a | 75 | |
Slepnir | 3:aaa92c61931a | 76 | |
Slepnir | 3:aaa92c61931a | 77 | #endif /* _crc_h */ |
Slepnir | 3:aaa92c61931a | 78 |