Contiki 3.x
onewire-crc-table.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2014, Eistec AB.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the copyright holder nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27  * POSSIBILITY OF SUCH DAMAGE.
28  *
29  * This file is part of the Mulle platform port of the Contiki operating system.
30  *
31  */
32 
33 /**
34  * \file
35  * One wire CRC lookup table.
36  *
37  * \author
38  * Joakim Gebart <joakim.gebart@eistec.se>
39  *
40  * \note
41  * The lookup table is the same as in Maxim Application Note 27
42  * "Understanding and Using Cyclic Redundancy Checks with Maxim 1-Wire
43  * and iButton Products"
44  */
45 
46 #ifndef ONEWIRE_CRC_TABLE_H_
47 #define ONEWIRE_CRC_TABLE_H_
48 
49 #include <stdint.h>
50 
51 #ifdef __cplusplus
52 extern "C" {
53 #endif
54 
55 /**
56  * Lookup table used by ow_compute_crc()
57  *
58  * Generated by compute-crc-table.c found in the tools directory.
59  */
60 static const uint8_t ow_crc_table[] = {
61  0x00, 0x5e, 0xbc, 0xe2, 0x61, 0x3f, 0xdd, 0x83,
62  0xc2, 0x9c, 0x7e, 0x20, 0xa3, 0xfd, 0x1f, 0x41,
63  0x9d, 0xc3, 0x21, 0x7f, 0xfc, 0xa2, 0x40, 0x1e,
64  0x5f, 0x01, 0xe3, 0xbd, 0x3e, 0x60, 0x82, 0xdc,
65  0x23, 0x7d, 0x9f, 0xc1, 0x42, 0x1c, 0xfe, 0xa0,
66  0xe1, 0xbf, 0x5d, 0x03, 0x80, 0xde, 0x3c, 0x62,
67  0xbe, 0xe0, 0x02, 0x5c, 0xdf, 0x81, 0x63, 0x3d,
68  0x7c, 0x22, 0xc0, 0x9e, 0x1d, 0x43, 0xa1, 0xff,
69  0x46, 0x18, 0xfa, 0xa4, 0x27, 0x79, 0x9b, 0xc5,
70  0x84, 0xda, 0x38, 0x66, 0xe5, 0xbb, 0x59, 0x07,
71  0xdb, 0x85, 0x67, 0x39, 0xba, 0xe4, 0x06, 0x58,
72  0x19, 0x47, 0xa5, 0xfb, 0x78, 0x26, 0xc4, 0x9a,
73  0x65, 0x3b, 0xd9, 0x87, 0x04, 0x5a, 0xb8, 0xe6,
74  0xa7, 0xf9, 0x1b, 0x45, 0xc6, 0x98, 0x7a, 0x24,
75  0xf8, 0xa6, 0x44, 0x1a, 0x99, 0xc7, 0x25, 0x7b,
76  0x3a, 0x64, 0x86, 0xd8, 0x5b, 0x05, 0xe7, 0xb9,
77  0x8c, 0xd2, 0x30, 0x6e, 0xed, 0xb3, 0x51, 0x0f,
78  0x4e, 0x10, 0xf2, 0xac, 0x2f, 0x71, 0x93, 0xcd,
79  0x11, 0x4f, 0xad, 0xf3, 0x70, 0x2e, 0xcc, 0x92,
80  0xd3, 0x8d, 0x6f, 0x31, 0xb2, 0xec, 0x0e, 0x50,
81  0xaf, 0xf1, 0x13, 0x4d, 0xce, 0x90, 0x72, 0x2c,
82  0x6d, 0x33, 0xd1, 0x8f, 0x0c, 0x52, 0xb0, 0xee,
83  0x32, 0x6c, 0x8e, 0xd0, 0x53, 0x0d, 0xef, 0xb1,
84  0xf0, 0xae, 0x4c, 0x12, 0x91, 0xcf, 0x2d, 0x73,
85  0xca, 0x94, 0x76, 0x28, 0xab, 0xf5, 0x17, 0x49,
86  0x08, 0x56, 0xb4, 0xea, 0x69, 0x37, 0xd5, 0x8b,
87  0x57, 0x09, 0xeb, 0xb5, 0x36, 0x68, 0x8a, 0xd4,
88  0x95, 0xcb, 0x29, 0x77, 0xf4, 0xaa, 0x48, 0x16,
89  0xe9, 0xb7, 0x55, 0x0b, 0x88, 0xd6, 0x34, 0x6a,
90  0x2b, 0x75, 0x97, 0xc9, 0x4a, 0x14, 0xf6, 0xa8,
91  0x74, 0x2a, 0xc8, 0x96, 0x15, 0x4b, 0xa9, 0xf7,
92  0xb6, 0xe8, 0x0a, 0x54, 0xd7, 0x89, 0x6b, 0x35,
93 };
94 
95 #ifdef __cplusplus
96 } /* extern "C" */
97 #endif
98 
99 #endif /* ONEWIRE_CRC_TABLE_H_ */