📄 lcd.lst
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C51 COMPILER V8.02 LCD 04/10/2008 17:17:55 PAGE 1
C51 COMPILER V8.02, COMPILATION OF MODULE LCD
OBJECT MODULE PLACED IN lcd.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE lcd.c OPTIMIZE(7,SPEED) BROWSE DEBUG OBJECTEXTEND
line level source
1 #include <reg52.h>
2 #define uchar unsigned char
3 idata char flag0 ;
4 idata char flag1 ;
5 idata char flag2 ;
6 idata char flag3 ;
7 idata char flag4 ;
8 idata char flag5 ;
9 idata char flag6 ;
10 idata char flag7 ;
11 sbit RS=P2^3;
12 sbit RW=P2^4;
13 sbit LCDE=P2^5;
14 sbit big=P3^2;
15 sbit fd=P3^3;
16 unsigned char line1[16],line2[16];
17 unsigned char code cgram1[64]={0x00,0x1f,0x12,0x09,0x1f,0x11,0x01,0x0f,
18 0x1e,0x04,0x04,0x08,0x1f,0x01,0x00,0x1e,
19 0x02,0x03,0x06,0x05,0x04,0x09,0x09,0x12,
20 0x00,0x1c,0x04,0x08,0x10,0x18,0x04,0x07,
21 0x00,0x0f,0x09,0x09,0x0f,0x09,0x09,0x0f,0x00,0x1c,0x04,0x04,0x1c,0x04,0x04,0x1c,
22 0x00,0x04,0x14,0x14,0x14,0x04,0x04,0x03,0x00,0x12,0x13,0x11,0x01,0x04,0x04,0x1c};/
*** ERROR C141 IN LINE 22 OF LCD.C: syntax error near '/'
23
24
25 void delay5ms()
26 {
27 1 register int i;
28 1 for (i=0;i<1000;i++)
29 1 ;
30 1 }
31
32 void delay50us()
33 {
34 1 register int i;
35 1 for (i=0;i<20;i++)
36 1 ;
37 1 }
38
39 wr_com(unsigned char comm)
40 {
41 1 LCDE=0;
42 1 RS=0;
43 1 RW=0;
44 1 LCDE=1;
45 1 P0=comm;
46 1 RS=0;
47 1 RW=0;
48 1 LCDE=0;
49 1 }
50
51 wr_data(unsigned char dat)
52 {
53 1 LCDE=0;
54 1 RS=0;
C51 COMPILER V8.02 LCD 04/10/2008 17:17:55 PAGE 2
55 1 RW=0;
56 1 RS=1;
57 1 RW=0;
58 1 LCDE=1;
59 1 P0=dat;
60 1 LCDE=0;
61 1 RS=0;
62 1 RW=0;
63 1 }
64
65
66 unsigned char rd_bf()
67 {
68 1 unsigned char i;
69 1 P0=0xff;
70 1 LCDE=0;
71 1 RS=0;
72 1 RW=0;
73 1 RS=0;
74 1 RW=1;
75 1 LCDE=1;
76 1 i=P0;
77 1 LCDE=0;
78 1 return(i);
79 1 }
80
81 void init()
82 {
83 1 unsigned char in,i;
84 1 wr_com(0x30);
85 1 delay5ms();
86 1 wr_com(0x30);
87 1 delay5ms();
88 1 wr_com(0x30);
89 1 delay5ms();
90 1 in=rd_bf();
91 1 delay5ms();
92 1 wr_com(0x01);
93 1 delay5ms();
94 1 in=rd_bf();
95 1 delay5ms();
96 1 wr_com(0x06);
97 1 delay5ms();
98 1 in=rd_bf();
99 1 delay50us();
100 1 wr_com(0x38);
101 1 delay50us();
102 1 in=rd_bf();
103 1 delay50us();
104 1 wr_com(0x0c);
105 1 delay50us();
106 1 in=rd_bf();
107 1 delay50us();
108 1
109 1 wr_com(0x40); //set cgram address
110 1 delay50us();
111 1 in=rd_bf();
112 1 delay50us();
113 1 for(i=0;i<64;i++)
114 1 {
115 2 wr_data(cgram1[i]); //display "0"
116 2 delay50us();
C51 COMPILER V8.02 LCD 04/10/2008 17:17:55 PAGE 3
117 2 in=rd_bf();
118 2 }
119 1
120 1
121 1
122 1
123 1
124 1
125 1
126 1
127 1 }
128
129
130 display_162()
131 {
132 1 unsigned char in,i;
133 1 wr_com(0x80); //set ram address
134 1 delay50us();
135 1 in=rd_bf();
136 1 delay50us();
137 1 for(i=0;i<16;i++)
138 1 {
139 2 wr_data(line1[i]); //display "0"
140 2 delay50us();
141 2 in=rd_bf();
142 2 }
143 1 in=rd_bf();
144 1 delay50us();
145 1 wr_com(0xc0);
146 1 delay50us();
147 1 in=rd_bf();
148 1 delay50us();
149 1 for(i=0;i<16;i++)
150 1 {
151 2 wr_data(line2[i]); //display "0"
152 2 delay50us();
153 2 in=rd_bf();
154 2 }
155 1 }
156 main()
157 {
158 1 unsigned char in,i,da;
159 1 delay5ms();
160 1 delay5ms();
161 1 delay5ms();
162 1 delay5ms();
163 1
164 1
165 1 init();
166 1
167 1 while(1)
168 1 {
169 2 if(fd==1)
170 2 {
171 3 line1[0]=0x20;
172 3 line1[1]=0; //display "爱思"
173 3 line1[2]=1;
174 3 line1[3]=4;
175 3 line1[4]=5;
176 3 line1[5]=0x20;
177 3 line1[6]=0; //display "爱思"
178 3 line1[7]=1;
C51 COMPILER V8.02 LCD 04/10/2008 17:17:55 PAGE 4
179 3 line1[8]=4;
180 3 line1[9]=5;
181 3 line1[10]=0x20;
182 3 line1[11]=0; //display "爱思"
183 3 line1[12]=1;
184 3 line1[13]=4;
185 3 line1[14]=5;
186 3 line1[15]=0x20;
187 3
188 3 line2[0]=0x20;
189 3 line2[1]=2; //display "爱思"
190 3 line2[2]=3;
191 3 line2[3]=6;
192 3 line2[4]=7;
193 3 line2[5]=0x20;
194 3 line2[6]=2; //display "爱思"
195 3 line2[7]=3;
196 3 line2[8]=6;
197 3 line2[9]=7;
198 3 line2[10]=0x20;
199 3 line2[11]=2; //display "爱思"
200 3 line2[12]=3;
201 3 line2[13]=6;
202 3 line2[14]=7;
203 3 line2[15]=0x20;
204 3
205 3 }
206 2 else if(big==1)
207 2 {
208 3 da=0x41;
209 3 for(i=0;i<16;i++)
210 3 {
211 4 line1[i]=da;
212 4 da++;
213 4 }
214 3
215 3
216 3 da=0x51;
217 3 for(i=0;i<16;i++)
218 3 {
219 4 line2[i]=da;
220 4 da++;
221 4 }
222 3 }
223 2 else
224 2 {
225 3 da=0x61;
226 3 for(i=0;i<16;i++)
227 3 {
228 4 line1[i]=da;
229 4 da++;
230 4 }
231 3
232 3
233 3 da=0x71;
234 3 for(i=0;i<16;i++)
235 3 {
236 4 line2[i]=da;
237 4 da++;
238 4 }
239 3 }
240 2 display_162();
C51 COMPILER V8.02 LCD 04/10/2008 17:17:55 PAGE 5
241 2 }
242 1 }
C51 COMPILATION COMPLETE. 0 WARNING(S), 1 ERROR(S)
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