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C51 COMPILER V8.18 S51YK 12/15/2009 16:42:48 PAGE 1
C51 COMPILER V8.18, COMPILATION OF MODULE S51YK
OBJECT MODULE PLACED IN s51yk.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE s51yk.c BROWSE DEBUG OBJECTEXTEND
line level source
1 #include <regX52.h>
2
3 #define c(x) (x*110592/120000)
4 sbit Ir_Pin=P3^2;
5 sbit beep=P3^6;
6 #define INBUF_LEN 4 //数据长度
7 unsigned char inbuf1[INBUF_LEN]={'0','0','0','0'};//发送缓冲区
8 unsigned char inbuf2[50];//接收缓冲区
9 unsigned char count3;
10 void init_serialcomm( void )
11 {
12 1 SCON = 0x50 ; //SCON: serail mode 1, 8-bit UART, enable ucvr
13 1 T2CON=0x30;
14 1 TH2=0x00;
15 1 TL2=0x00;
16 1 RCAP2H=0xFF;
17 1 RCAP2L=0xDC;
18 1 TR2=1;
19 1 }
20 //向串口发送一个字符
21 void send_char_com( unsigned char ch)
22 {
23 1 SBUF=ch;
24 1 while (TI== 0 );
25 1 TI= 0 ;
26 1 }
27 //向串口发送一个字符串，strlen 为该字符串长度
28 void send_string_com( unsigned char *str, unsigned int strlen)
29 {
30 1 unsigned int k= 0 ;
31 1 do
32 1 {
33 2 send_char_com(*(str + k));
34 2 k++;
35 2 } while (k < strlen);
36 1 }
37 //串口接收中断函数
38 void serial () interrupt 4 using 3
39 {
40 1 if (RI) //RI==开始接收
41 1 {
42 2 unsigned char ch;
43 2 RI = 0 ; //软件RI=0
44 2 ch=SBUF;
45 2 if (ch> 1 )
46 2 {
47 3 count3= 0 ;
48 3 inbuf2[count3]=ch;
49 3 }
50 2 else
51 2 {
52 3 count3++;
53 3 inbuf2[count3]=ch;
54 3 }
55 2 }
C51 COMPILER V8.18 S51YK 12/15/2009 16:42:48 PAGE 2
56 1 }
57
58
59 unsigned char code Led_Tab[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,
60 0xf8,0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E}; //共阳极数码显示码0-F.
61 unsigned char code Led_Sel[]={0xef,0xdf,0xbf,0x7f};
62 unsigned char dis_8[17]={'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F','-'};
63
64 unsigned char Led_Buf[4]; //显示缓冲区
65 char Led_Index; //位选
66
67 unsigned char Ir_Buf[4]; //用于保存解码结果
68 void delay_50ms(unsigned int t)
69 {
70 1 unsigned int j;
71 1 for(;t>0;t--)
72 1 for(j=6245;j>0;j--)
73 1 {;}
74 1 }
75
76 //==============================================================
77 //数码管扫描
78 timer0() interrupt 1 using 1
79 {
80 1 TL0=65536-1000;
81 1 TH0=(65536-1000)/256; //定时器0设定约1000us中断一次，用于数码管扫描
82 1 //P0=0xff;
83 1 P2=Led_Sel[Led_Index]; //位选
84 1 P0=Led_Tab[Led_Buf[Led_Index]]; //段选
85 1
86 1 if(++Led_Index>3) Led_Index=0; //四个扫描完了,到第一个数码管
87 1 }
88 //==============================================================
89 unsigned int Ir_Get_Low()
90 {
91 1 TL1=0;
92 1 TH1=0;
93 1 TR1=1;
94 1 while(!Ir_Pin && (TH1&0x80)==0);
95 1 TR1=0;
96 1 return TH1*256+TL1;
97 1 }
98 //=============================================================
99 unsigned int Ir_Get_High()
100 {
101 1 TL1=0;
102 1 TH1=0;
103 1 TR1=1;
104 1 while(Ir_Pin && (TH1&0x80)==0);
105 1 TR1=0;
106 1 return TH1*256+TL1;
107 1 }
108 //==============================================================
109 main()
110 {
111 1 unsigned int temp;
112 1 char i,j;
113 1 Led_Index=1;
114 1 init_serialcomm(); //初始化串口
115 1 TMOD=0x11;
116 1 TL0=65536-1000;
117 1 TH0=(65536-1000)/256; //定时器0设定约1000us中断一次，用于数码管扫描
C51 COMPILER V8.18 S51YK 12/15/2009 16:42:48 PAGE 3
118 1 EA=1;
119 1 ET0=1;
120 1 TR0=1;
121 1
122 1 Led_Buf[0]=0;
123 1 Led_Buf[1]=0;
124 1 Led_Buf[2]=0;
125 1 Led_Buf[3]=0; //显示区设成0
126 1 do{
127 2 restart:
128 2 while(Ir_Pin);
129 2 temp=Ir_Get_Low();
130 2 if(temp<c(8500) || temp>c(9500)) continue;//引导脉冲低电平9000
131 2 temp=Ir_Get_High();
132 2 if(temp<c(4000) || temp>c(5000)) continue;//引导脉冲高电平4500
133 2 for(i=0;i<4;i++) //4个字节
134 2 for(j=0;j<8;j++) //每个字节8位
135 2 {
136 3 temp=Ir_Get_Low();
137 3 if(temp<c(200) || temp>c(800)) goto restart;
138 3 temp=Ir_Get_High();
139 3 if(temp<c(200) || temp>c(2000)) goto restart;
140 3 Ir_Buf[i]>>=1;
141 3 if(temp>c(1120)) Ir_Buf[i]|=0x80;
142 3 }
143 2 Led_Buf[0]=(Ir_Buf[2]/16)&0xf;
144 2 Led_Buf[1]=Ir_Buf[2]&0xf;
145 2 Led_Buf[2]=(Ir_Buf[3]/16)&0xf; //显示结果
146 2 Led_Buf[3]=Ir_Buf[3]&0xf;
147 2 inbuf1[0]=dis_8[Led_Buf[0]];
148 2 inbuf1[1]=dis_8[Led_Buf[1]];
149 2 inbuf1[2]=0x0d;
150 2 inbuf1[3]=0x0a;
151 2 send_string_com(inbuf1,INBUF_LEN);
152 2 beep=0;
153 2 delay_50ms(2);
154 2 beep=1;
155 2 }
156 1 while(1);
157 1 }
158
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 639 ----
CONSTANT SIZE = 20 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 81 10
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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