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C51 COMPILER V8.08 TEXT1 07/09/2008 17:46:00 PAGE 1
C51 COMPILER V8.08, COMPILATION OF MODULE TEXT1
OBJECT MODULE PLACED IN Text1.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE Text1.c BROWSE DEBUG OBJECTEXTEND
line level source
1 #include <reg51.h>
2 #include <STRING.h>
3 #include <INTRINS.h>
4 #include<stdio.h>
5
6
7
8
9 #define N 16//number 数据位数
10
11 #define NUM N+6//串口接受数据位数
12 #define BAUDRATE 9600 //波特率bps
13 #define SYSCLK 11059200 //外部晶振
14 bit flag=0;
15 unsigned char uart_data=0;
16 unsigned char rec_temp[NUM];//;
17 /* CRC 高位字节值表 */
18 const unsigned char code auchCRCHi[] = {
19 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
20 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
21 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
22 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
23 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
24 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
25 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
26 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
27 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
28 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
29 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
30 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
31 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
32 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
33 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
34 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
35 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
36 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
37 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
38 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
39 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
40 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
41 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
42 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
43 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
44 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
45 } ;
46 /* CRC低位字节值表*/
47 const unsigned char code auchCRCLo[] = {
48 0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,
49 0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,
50 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
51 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
52 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,
53 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
54 0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,
55 0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
C51 COMPILER V8.08 TEXT1 07/09/2008 17:46:00 PAGE 2
56 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
57 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,
58 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,
59 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
60 0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,
61 0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,
62 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
63 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
64 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,
65 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
66 0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,
67 0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
68 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
69 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,
70 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,
71 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
72 0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,
73 0x43, 0x83, 0x41, 0x81, 0x80, 0x40
74 } ;
75
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80
81
82
83
84 unsigned int crc16(unsigned char *puchMsg, unsigned int usDataLen)
85 {
86 1 unsigned char i;
87 1 unsigned char uchCRCHi = 0xFF ; //* 高CRC字节初始化
88 1 unsigned char uchCRCLo = 0xFF ; //* 低CRC 字节初始化
89 1 unsigned long uIndex ; // CRC循环中的索引
90 1 for(i=1;i<(usDataLen-3);i++) // 传输消息缓冲区
91 1 {
92 2 uIndex = uchCRCHi ^ *puchMsg++ ; // 计算CRC
93 2 uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex] ;
94 2 uchCRCLo = auchCRCLo[uIndex] ;
95 2 }
96 1 return (uchCRCHi << 8 | uchCRCLo) ;
97 1 }
98
99 //向串口发送一个字符
100 void send_char(unsigned char ch)
101 {
102 1 SBUF=ch;
103 1 while(TI==0);
104 1 TI=0;
105 1 }
106
107 //向串口发送一个字符串，strlen为该字符串长度
108 void send_string(unsigned char *str,unsigned int len)
109 {
110 1 unsigned int k=0;
111 1 do
112 1 {
113 2 send_char(*(str + k));
114 2 k++;
115 2 } while(k < len);
116 1 }
117
C51 COMPILER V8.08 TEXT1 07/09/2008 17:46:00 PAGE 3
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119
120
121
122 void main (void)
123 {
124 1 unsigned int crc=0x00;
125 1 unsigned int crc_tmp=0;
126 1 SCON=0x50;//模式1 8-bit 允许接受
127 1 TMOD=0x20;//TMOD: 定时器1, 工作方式2, 8-bit
128 1 TH1=-(SYSCLK/BAUDRATE/32);//4800波特率 fosc=11.0592MHz
129 1 TR1=1;
130 1 PCON=0x00;
131 1 ES =1; //UART中断开启
132 1 TR1 = 1; //启动定时器T1
133 1
134 1 EA = 1;
135 1
136 1
137 1 while(1){
138 2 if(flag)
139 2 {
140 3 flag=0;
141 3 crc=crc16(rec_temp,NUM);
142 3 crc_tmp= rec_temp[19];
143 3 crc_tmp*=256;
144 3 crc_tmp|= rec_temp[20];
145 3 if(crc==crc_tmp)
146 3 {
147 4 send_string(rec_temp,strlen(rec_temp));
148 4 }
149 3 else{send_char(rec_temp[0x02]+0x10);}
150 3 }
151 2
152 2 } /* endless */
153 1 }
154
155
156 //串口接收中断函数
157 void serial () interrupt 4
158 {
159 1 if(RI)
160 1 {
161 2 unsigned char ch,i;
162 2 RI = 0;
163 2 ch=SBUF;
164 2 rec_temp[i++]=ch;
165 2 if(i>NUM)
166 2 {
167 3 i=0;
168 3 // send_string(rec_temp,strlen(rec_temp));
169 3 flag=1;
170 3 }
171 2
172 2 }
173 1 }
174
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C51 COMPILER V8.08 TEXT1 07/09/2008 17:46:00 PAGE 4
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MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 307 ----
CONSTANT SIZE = 512 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 23 23
IDATA SIZE = ---- ----
BIT SIZE = 1 ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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