?? 串行.lst
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C51 COMPILER V6.23a ____ 07/23/2008 10:15:45 PAGE 1
C51 COMPILER V6.23a, COMPILATION OF MODULE ____
OBJECT MODULE PLACED IN F:\設(shè)計\編譯通~1\鍵盤串~1\串行.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE F:\設(shè)計\編譯通~1\鍵盤串~1\串行.C DB SB OE
stmt level source
1 #include<reg51.h>
2 #define uchar unsigned char
3 #define uint unsigned int
4 uint z,num,numduan;
5 uchar temp,numwei=0,numwei1;
6 static west=0;
7
8 uchar code tableduan[]={ //鍵盤表
9 0x3f,0x06,0x5b,0x4f,
10 0x66,0x6d,0x7d,0x07,
11 0x7f,0x6f,0x77,0x7c,
12 0x39,0x5e,0x79,0x71};
13
14 uchar code tablewei[]={
15 0xfe,0xfd,0xfb,0xf7,
16 0xef,0xdf,0xbf,0x7f};
17
18
19
20 void init();
21 void sent(uchar aa);
22 void receive();
23 uchar jianpan();
24 void display(uchar dis);
25 uchar cc;
26
27 void main()
28 {
29 1 init();
30 1 while(1)
31 1 {
32 2 numduan=jianpan();
33 2 display(cc);
34 2
35 2 if(west) {
36 3 cc=numduan;
37 3 sent(numduan);
38 3 west=0; }
39 2
40 2
41 2 receive();
42 2
43 2
44 2 }
45 1
46 1 }
47
48 void init()
49 {
50 1 SM0=0;
51 1 SM1=1;
52 1 REN=1;
53 1 TMOD=0x20;
54 1 TH1=0xfd;
55 1 TL1=0xfd;
C51 COMPILER V6.23a ____ 07/23/2008 10:15:45 PAGE 2
56 1 TR1=1;
57 1 TI=0;
58 1
59 1 }
60
61 //------------------------------------------------
62 void delay(uint z)
63
64 {
65 1 uint x,y;
66 1 for(x=z;x>0;x--)
67 1 for(y=120;y>0;y--);
68 1 }
69
70
71 void display(uchar dis)
72 {
73 1
74 1 P0=tableduan[dis];
75 1 P2=0;
76 1
77 1
78 1 }
79
80 //--------------------------------鍵盤子程序：
81
82 uchar jianpan( )
83 {
84 1 P1=0xfe;
85 1 temp=P1;
86 1 temp=temp&0xf0;
87 1
88 1 if(temp!=0xf0)
89 1
90 1 {
91 2 delay(5);
92 2 temp=P1;
93 2 temp=temp&0xf0;
94 2 if(temp!=0xf0)
95 2 {
96 3 temp=P1;
97 3 switch(temp)
98 3 {
99 4 case 0xee: num=1; break;
100 4 case 0xde: num=2; break;
101 4 case 0xbe: num=3; break;
102 4 case 0x7e: num=4; break;
103 4 }
104 3 }
105 2 while(temp!=0xf0) //松手檢測
106 2 {
107 3 temp=P1;
108 3 temp=temp&0xf0;
109 3 west=1;
110 3
111 3 }
112 2 }
113 1
114 1
115 1
116 1 //-------------------------------------------
117 1 P1=0xfd;
C51 COMPILER V6.23a ____ 07/23/2008 10:15:45 PAGE 3
118 1 temp=P1;
119 1 temp=temp&0xf0;
120 1
121 1 if(temp!=0xf0)
122 1
123 1 {
124 2 delay(5);
125 2 temp=P1;
126 2 temp=temp&0xf0;
127 2 if(temp!=0xf0)
128 2 {
129 3 temp=P1;
130 3 switch(temp)
131 3 {
132 4 case 0xed: num=5; break;
133 4 case 0xdd: num=6; break;
134 4 case 0xbd: num=7; break;
135 4 case 0x7d: num=8; break;
136 4 }
137 3 }
138 2 while(temp!=0xf0) //松手檢測
139 2 {
140 3 temp=P1;
141 3 temp=temp&0xf0;
142 3 west=1;
143 3
144 3 }
145 2 }
146 1
147 1
148 1 //-------------------------------------------
149 1 P1=0xfb;
150 1 temp=P1;
151 1 temp=temp&0xf0;
152 1
153 1 if(temp!=0xf0)
154 1
155 1 {
156 2 delay(5);
157 2 temp=P1;
158 2 temp=temp&0xf0;
159 2 if(temp!=0xf0)
160 2 {
161 3 temp=P1;
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