-
Notifications
You must be signed in to change notification settings - Fork 0
/
LCD1602.lst
182 lines (172 loc) · 6.52 KB
/
LCD1602.lst
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
C51 COMPILER V9.01 LCD1602 03/29/2016 13:22:22 PAGE 1
C51 COMPILER V9.01, COMPILATION OF MODULE LCD1602
OBJECT MODULE PLACED IN .\output\LCD1602.obj
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE src\LCD1602.c BROWSE DEBUG OBJECTEXTEND PRINT(.\LCD1602.lst) OBJECT(.\outpu
-t\LCD1602.obj)
line level source
1 #include<reg51.h>
2 #include "common.h"
3 #include "LCD1602.h"
4
5 void LCD1602_Delay(uint dely)
6 {
7 1 for(;dely>0;dely--);
8 1 }
9
10 //读忙
11 uchar LCD1602_ReadBusy()
12 {
13 1 uchar lcd_status;
14 1 LCD1602_RS=0;
15 1 LCD1602_RW=1;
16 1 LCD1602_EN=1;
17 1
18 1 #if(LCD1602_Order_Function_DL==1)
LCD1602_Port=0xFF;
#endif
21 1 #if(LCD1602_Order_Function_DL==0)
22 1 LCD1602_Port|=0xF0;
23 1 #endif
24 1
25 1 LCD1602_Delay(10);
26 1 lcd_status=LCD1602_Port;
27 1 LCD1602_EN=0;
28 1
29 1 #if(LCD1602_Order_Function_DL==0)
30 1 LCD1602_EN=1;
31 1 LCD1602_Delay(10);
32 1 lcd_status=(lcd_status&0xF0)|((0xF0&LCD1602_Port)>>4);
33 1 LCD1602_EN=0;
34 1 #endif
35 1 return lcd_status;
36 1 }
37
38 /*向液晶显示器写命令/数据函数
39 参数说明：cmd=0为写命令，cmd=1为写数据
40 */
41 void LCD1602_Write(uchar cmd,uchar dat)
42 {
43 1 while((LCD1602_ReadBusy()&0x80) == 0x80);
44 1 LCD1602_RS=cmd;
45 1 LCD1602_RW=0;
46 1 LCD1602_EN=1;
47 1 #if(LCD1602_Order_Function_DL==1)
LCD1602_Port=dat;
#endif
50 1
51 1 #if(LCD1602_Order_Function_DL==0)
52 1 LCD1602_Port=(LCD1602_Port&0x0F)|(dat&0xF0);
53 1 LCD1602_Delay(50);
54 1 LCD1602_EN=0;
C51 COMPILER V9.01 LCD1602 03/29/2016 13:22:22 PAGE 2
55 1
56 1
57 1 LCD1602_EN=1;
58 1 LCD1602_Port=(LCD1602_Port&0x0F)|(dat<<4);
59 1 #endif
60 1 LCD1602_Delay(50);
61 1 LCD1602_EN=0;
62 1 }
63
64
65 /*显示字符串
66 参数说明：起始行，列，字符串
67 */
68 void LCD1602_displaySring(uchar hang, uchar lie, uchar *pstr)
69 {
70 1 LCD1602_Write(0,0x80+(0x40 * (hang - 1)) + (lie - 1));
71 1 while(*pstr)
72 1 {
73 2 LCD1602_Write(1,*pstr++);
74 2 }
75 1 }
76
77 /*显示一个3位的整数，包括符号位共4个字符
78 参数说明：起始行，列，待显示的数
79 */
80 void LCD1602_display3INT(uchar hang, uchar lie, int int_3b)
81 {
82 1 uchar tps[]=" ";
83 1 uchar *pstr=&tps[0];
84 1 if(int_3b < 0)
85 1 {
86 2 tps[0]='-';
87 2 int_3b=int_3b*(-1);
88 2 }
89 1 else
90 1 tps[0]='+';
91 1
92 1 tps[1]=int_3b/100+'0';
93 1 tps[2]=int_3b%100/10+'0';
94 1 tps[3]=int_3b%10+'0';
95 1
96 1 LCD1602_Write(0,0x80+(0x40 * (hang - 1)) + (lie - 1));
97 1 while(*pstr)
98 1 {
99 2 LCD1602_Write(1,*pstr++);
100 2 }
101 1 }
102
103 /*显示一个2位的无符号整数,共2位
104 参数说明：起始行，列，待显示的数
105 */
106 void LCD1602_display2UINT(uchar hang, uchar lie, uint uint_b)
107 {
108 1 uchar tps[]=" ";
109 1 uchar *pstr=&tps[0];
110 1
111 1 tps[0]=uint_b/10+'0';
112 1 tps[1]=uint_b%10+'0';
113 1
114 1 LCD1602_Write(0,0x80+(0x40 * (hang - 1)) + (lie - 1));
115 1 while(*pstr)
116 1 {
C51 COMPILER V9.01 LCD1602 03/29/2016 13:22:22 PAGE 3
117 2 LCD1602_Write(1,*pstr++);
118 2 }
119 1 }
120
121
122 /*让指定位置闪烁光标
123 参数说明：行，列
124 */
125 void LCD1602_CursorSet(uchar hang, uchar lie)
126 {
127 1 LCD1602_Write(0,0x80+(0x40 * (hang - 1)) + (lie - 1));
128 1 LCD1602_Write(0,0x0F);
129 1 }
130
131
132
133 /*初始化*/
134 void LCD1602_init()
135 {
136 1 LCD1602_RS=0;
137 1 LCD1602_RW=0;
138 1 LCD1602_EN=1;
139 1 #if(LCD1602_Order_Function_DL==1)
LCD1602_Port=LCD1602_Order_Function;
#endif
142 1
143 1 #if(LCD1602_Order_Function_DL==0)
144 1 LCD1602_Port=(LCD1602_Port&0x0f)|(LCD1602_Order_Function&0xF0);
145 1 #endif
146 1 LCD1602_Delay(10);
147 1 LCD1602_EN=0;
148 1 LCD1602_Delay(10000);
149 1 LCD1602_Write(0,LCD1602_Order_Function); //工作方式设置
150 1 LCD1602_Write(0,LCD1602_Order_OFF); //关显示
151 1 LCD1602_Write(0,LCD1602_Order_Clear); //清屏
152 1 LCD1602_Write(0,LCD1602_Order_Mode); //输入方式设置
153 1 LCD1602_Write(0,LCD1602_Order_OnOFF); //开显示
154 1 }
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 555 ----
CONSTANT SIZE = 8 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- 25
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)