CMSIS2000  0.0.7
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crc_modbus.c
См. документацию.
1 /*
2  * CMSIS2000
3  * CMSIS-like sources for LPC2xxx series MCUs
4  *
5  * (C) Copyright 2011-2012, Dmitriy Cherepanov, All Rights Reserved
6  *
7  * Version: 0.0.7
8  * Date of the Last Update: 2013-03-04
9  *
10  * Permission is hereby granted, free of charge, to any person obtaining a copy
11  * of this software and associated documentation files (the "Software"), to
12  * deal in the Software without restriction, including without limitation the
13  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
14  * sell copies of the Software, and to permit persons to whom the Software is
15  * furnished to do so, subject to the following conditions:
16  *
17  * The above copyright notice and this permission notice shall be included in
18  * all copies or substantial portions of the Software.
19  *
20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
25  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
26  * IN THE SOFTWARE.
27  *
28  * Do not be lasy! For the latest version see http://irtos.sourceforge.net .
29  *
30  *
31 #*/
32 /*----------------------------------------------------------------------------*/
33 #include "driConfig.h"
34 #if (NET_LINK == 1)
35 //#include "crc.h"
36 #include "iConfig.h"
37 #include "arch/iArch_nums.h"
38 /*-----------Документация Doxygen -- Doxygen documentation -----------------*/
39 /** \file
40  *\if russian_lng
41  * Используйте данный файл как шаблон для других файлов.
42  *\else
43  * Use this file as a start point to other files.
44  *\endif
45  * \author Dmitriy Cherepanov
46  * \date 2009
47  * \date 2010
48  */
49 /*---------- ЛОКАЛЬНЫЕ ДАННЫЕ - FILE PRIVATE VARIABLES------------------------*/
50 #if iRTOS_ARCH_CHECK(iRTOS_ARCH,POSIX_GENERIC) /*|| (iRTOS_ARCH == WIN_NT_ARCH)*/
51 static const unsigned char crc_hi_arr[] = {
52  0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
53  0x00, 0xC1, 0x81,
54  0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81,
55  0x40, 0x01, 0xC0,
56  0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1,
57  0x81, 0x40, 0x01,
58  0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
59  0xC0, 0x80, 0x41,
60  0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
61  0x00, 0xC1, 0x81,
62  0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80,
63  0x41, 0x01, 0xC0,
64  0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
65  0x80, 0x41, 0x01,
66  0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00,
67  0xC1, 0x81, 0x40,
68  0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
69  0x00, 0xC1, 0x81,
70  0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
71  0x40, 0x01, 0xC0,
72  0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1,
73  0x81, 0x40, 0x01,
74  0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01,
75  0xC0, 0x80, 0x41,
76  0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
77  0x00, 0xC1, 0x81,
78  0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
79  0x40, 0x01, 0xC0,
80  0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
81  0x80, 0x41, 0x01,
82  0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
83  0xC0, 0x80, 0x41,
84  0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
85  0x00, 0xC1, 0x81,
86  0x40
87 };
88 
89 static const unsigned char crc_lo_arr[] = {
90  0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7,
91  0x05, 0xC5, 0xC4,
92  0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB,
93  0x0B, 0xC9, 0x09,
94  0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE,
95  0xDF, 0x1F, 0xDD,
96  0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2,
97  0x12, 0x13, 0xD3,
98  0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
99  0x36, 0xF6, 0xF7,
100  0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E,
101  0xFE, 0xFA, 0x3A,
102  0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B,
103  0x2A, 0xEA, 0xEE,
104  0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27,
105  0xE7, 0xE6, 0x26,
106  0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1,
107  0x63, 0xA3, 0xA2,
108  0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD,
109  0x6D, 0xAF, 0x6F,
110  0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8,
111  0xB9, 0x79, 0xBB,
112  0x7B, 0x7A, 0xBA, 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4,
113  0x74, 0x75, 0xB5,
114  0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
115  0x50, 0x90, 0x91,
116  0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94,
117  0x54, 0x9C, 0x5C,
118  0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59,
119  0x58, 0x98, 0x88,
120  0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D,
121  0x4D, 0x4C, 0x8C,
122  0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83,
123  0x41, 0x81, 0x80,
124  0x40
125 };
126 #endif
127 /*---------- МАКРОСЫ - MACROSES ----------------------------------------------*/
128 
129 /*------ ОБЪЯВЛЕНИЯ ЛОКАЛЬНЫХ ФУНКЦИЙ - FILE PRIVATE FUNCTIONS API------------*/
130 
131 /*------ ГЛОБАЛЬНЫЕ ФУНКЦИИ - PUBLIC FUNCTION IMPLEMENTATION -----------------*/
132 #if (iRTOS_ARCH_CHECK(iRTOS_ARCH,POSIX_GENERIC) /*|| (iRTOS_ARCH == WIN_NT_ARCH)*/)
133 #include <stdint.h>
134 uint16_t crc16_update(uint16_t crc, uint8_t a)
135 {
136 unsigned char index;
137  index = (crc & 0xFF) ^ a;
138  crc = ((crc>>8) ^ (crc_hi_arr[index])) | (crc_lo_arr[index]<<8);
139  return (crc);
140 }
141 #endif
142 /*------ ЛОКАЛЬНЫЕ ФУНКЦИИ - PRIVATE FUNCTION IMPLEMENTATION -----------------*/
143 #endif /*(NET_LINK == 1)*/