📄 字库st7920 12864液晶基础显示.lst
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C51 COMPILER V7.06 字库ST7920_12864襙__基___允_ 06/05/2010 17:23:44 PAGE 1
C51 COMPILER V7.06, COMPILATION OF MODULE 字库ST7920_12864襙__基___允_
OBJECT MODULE PLACED IN .\obj\字库ST7920 12864液晶基础显示.obj
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE 字库ST7920 12864液晶基础显示.c BROWSE DEBUG OBJECTEXTEND PRINT(.\obj\字库ST
-7920 12864液晶基础显示.lst) OBJECT(.\obj\字库ST7920 12864液晶基础显示.obj)
stmt level source
1 /*-----------------------------------------------
2 名称：st7920字库液晶显示
3 论坛：www.doflye.net
4 编写：shifang
5 日期：2009.5
6 修改：无
7 内容：通过显示字符、数字、汉字和图片测试液晶基本功能
8 ------------------------------------------------*/
9 #include <reg52.h>
10 #include <intrins.h>
11 #include "delay.h"
12
13 sbit RS = P2^4;
14 sbit RW = P2^5;
15 sbit E = P2^6;
16 sbit RES = P2^3;
17 sbit PSB = P2^1;
18 sbit PAUSE = P3^0;
19
20 #define DataPort P0 //MCU P0<------> LCM
21
22
23
24 unsigned char code user16x16[]={ //笑脸图片
25 0x0F,0xF0,0x10,0x08,0x20,0x04,0x40,0x02,0x9C,0x39,0xBE,0x7D,0x80,0x01,0x80,0x01,
26 0x80,0x01,0x88,0x11,0x84,0x21,0x43,0xC2,0x20,0x04,0x10,0x08,0x0F,0xF0,0x00,0x00,
27 };
28 unsigned char code pic1[]=
29 {
30 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
31 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
32 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
33 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
34 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
35 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
36 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
37 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
38 0xC0,0x1F,0xFF,0x81,0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
39 0xC0,0x1F,0xFF,0x81,0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
40 0xC0,0x18,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x08,0x00,0x00,0x00,0x03,
41 0xC0,0x1F,0xFF,0x80,0x00,0x00,0x04,0x07,0x81,0xE0,0x10,0x10,0x03,0xC0,0x30,0x03,
42 0xC0,0x1F,0xFF,0x80,0x00,0x00,0x0C,0x0C,0xC3,0x30,0x08,0x20,0x0C,0xE0,0x70,0x03,
43 0xC0,0x18,0x01,0x87,0xFF,0xFE,0x3C,0x18,0x66,0x18,0x04,0x40,0x0C,0x60,0x70,0x03,
44 0xC0,0x1F,0xFF,0x87,0xFF,0xFE,0x0C,0x18,0x66,0x18,0x02,0x80,0x18,0x00,0xB0,0x03,
45 0xC0,0x1F,0xFF,0x80,0x06,0x00,0x0C,0x18,0x66,0x18,0x01,0x00,0x1B,0x81,0x30,0x03,
46 0xC0,0x01,0x98,0x00,0x06,0x00,0x0C,0x00,0xE3,0x30,0x02,0x80,0x1C,0xC1,0x30,0x03,
47 0xC0,0x19,0x99,0x80,0x66,0x60,0x0C,0x00,0xC1,0xE0,0x04,0x40,0x18,0x62,0x30,0x03,
48 0xC0,0x19,0x99,0x80,0x66,0x30,0x0C,0x01,0x83,0x30,0x08,0x20,0x18,0x66,0x30,0x03,
49 0xC0,0x0D,0x9B,0x00,0xC6,0x38,0x0C,0x03,0x06,0x18,0x10,0x10,0x18,0x67,0xFC,0x03,
50 0xC0,0x0D,0x9B,0x01,0xC6,0x1C,0x0C,0x06,0x06,0x18,0x20,0x08,0x18,0x60,0x30,0x03,
51 0xC0,0x01,0x98,0x03,0x86,0x0C,0x0C,0x0C,0x06,0x18,0x00,0x00,0x08,0x60,0x30,0x03,
52 0xC0,0x7F,0xFF,0xE3,0x06,0x00,0x0C,0x18,0x03,0x30,0x00,0x00,0x0C,0xC0,0x30,0x03,
53 0xC0,0x7F,0xFF,0xE0,0x1E,0x00,0x0C,0x1F,0xE1,0xE0,0x00,0x00,0x07,0x80,0x30,0x03,
54 0xC0,0x00,0x00,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
C51 COMPILER V7.06 字库ST7920_12864襙__基___允_ 06/05/2010 17:23:44 PAGE 2
55 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
56 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
57 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
58 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
59 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
60 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
61 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
62 0xC0,0x00,0x00,0x00,0x00,0x00,0x0C,0x00,0x00,0x18,0x00,0x00,0x00,0x06,0x0C,0x03,
63 0xC3,0xFF,0xFC,0x3F,0xF0,0x80,0x0C,0x00,0x3F,0x18,0x01,0xFF,0xFE,0x06,0x0C,0x03,
64 0xC3,0xFF,0xFC,0x3F,0xF1,0x80,0x0F,0xFC,0x3F,0x18,0x01,0xFF,0xFE,0x06,0x0C,0x03,
65 0xC3,0x0C,0x0C,0x0C,0xC3,0x00,0x0F,0xFC,0x33,0x7F,0xE1,0x86,0x06,0x06,0x0C,0x03,
66 0xC3,0x1F,0xCC,0x0C,0xC6,0x00,0x0C,0x00,0x33,0x7F,0xE1,0x8F,0xE6,0x06,0x0C,0x03,
67 0xC3,0x3F,0xCC,0x0C,0xCC,0x00,0x0C,0x00,0x36,0x30,0x01,0x9F,0xE6,0x07,0xFF,0xE3,
68 0xC3,0x79,0x8C,0x0C,0xC8,0x00,0xFF,0xF0,0x36,0x36,0x01,0xBC,0xC6,0x07,0xFF,0xE3,
69 0xC3,0x6F,0x0C,0x7F,0xF0,0xC0,0xFF,0xF0,0x36,0x66,0x01,0xB7,0x86,0x06,0x00,0x03,
70 0xC3,0x0F,0x0C,0x7F,0xF1,0x80,0xC0,0x30,0x36,0x7F,0xC1,0x87,0x86,0x06,0x00,0x03,
71 0xC3,0x79,0xEC,0x0C,0xC3,0x00,0xC0,0x30,0x33,0x7F,0xC1,0xBC,0xF6,0x06,0x00,0x03,
72 0xC3,0x76,0xEC,0x0C,0xC6,0x00,0xC0,0x30,0x33,0x06,0x01,0xBB,0x76,0x07,0xFF,0x03,
73 0xC3,0x07,0x0C,0x0C,0xCC,0x20,0xFF,0xF0,0x33,0x06,0x01,0x83,0x86,0x07,0xFF,0x03,
74 0xC3,0x03,0x0C,0x18,0xC8,0x60,0xFF,0xF0,0x3F,0x06,0x01,0x81,0x86,0x06,0x03,0x03,
75 0xC3,0x1C,0x0C,0x18,0xC0,0xC0,0x00,0x00,0x3E,0xFF,0xE1,0x8E,0x06,0x06,0x03,0x03,
76 0xC3,0x1F,0x0C,0x18,0xC1,0x81,0xB1,0x8C,0x30,0xFF,0xE1,0x8F,0x86,0x06,0x03,0x03,
77 0xC3,0x03,0x0C,0x30,0xC7,0x01,0xB1,0x8C,0x30,0x06,0x01,0x81,0x86,0x0C,0x03,0x03,
78 0xC3,0xFF,0xFC,0x70,0xDE,0x03,0x18,0xC6,0x30,0x06,0x01,0xFF,0xFE,0x0C,0x03,0x03,
79 0xC3,0xFF,0xFC,0x20,0x18,0x03,0x18,0xC6,0x30,0x06,0x01,0xFF,0xFE,0x18,0x03,0x03,
80 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
81 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
82 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
83 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
84 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
85 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
86 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
87 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
88 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
89 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
90 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
91 0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
92 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
93 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
94
95 };
96
97 /*------------------------------------------------
98 检测忙位
99 ------------------------------------------------*/
100 void Check_Busy()
101 {
102 1 RS=0;
103 1 RW=1;
104 1 E=1;
105 1 DataPort=0xff;
106 1 while((DataPort&0x80)==0x80);//忙则等待
107 1 E=0;
108 1 }
109 /*------------------------------------------------
110 写命令
111 ------------------------------------------------*/
112 void Write_Cmd(unsigned char Cmd)
113 {
114 1 Check_Busy();
115 1 RS=0;
116 1 RW=0;
C51 COMPILER V7.06 字库ST7920_12864襙__基___允_ 06/05/2010 17:23:44 PAGE 3
117 1 E=1;
118 1 DataPort=Cmd;
119 1 DelayUs2x(5);
120 1 E=0;
121 1 DelayUs2x(5);
122 1 }
123 /*------------------------------------------------
124 写数据
125 ------------------------------------------------*/
126 void Write_Data(unsigned char Data)
127 {
128 1 Check_Busy();
129 1 RS=1;
130 1 RW=0;
131 1 E=1;
132 1 DataPort=Data;
133 1 DelayUs2x(5);
134 1 E=0;
135 1 DelayUs2x(5);
136 1 }
137 /*------------------------------------------------
138 液晶屏初始化
139 ------------------------------------------------*/
140 void Init_ST7920()
141 {
142 1 DelayMs(40); //大于40MS的延时程序
143 1 PSB=1; //设置为8BIT并口工作模式
144 1 DelayMs(1); //延时
145 1 RES=0; //复位
146 1 DelayMs(1); //延时
147 1 RES=1; //复位置高
148 1 DelayMs(10);
149 1 Write_Cmd(0x30); //选择基本指令集
150 1 DelayUs2x(50); //延时大于100us
151 1 Write_Cmd(0x30); //选择8bit数据流
152 1 DelayUs2x(20); //延时大于37us
153 1 Write_Cmd(0x0c); //开显示(无游标、不反白)
154 1 DelayUs2x(50); //延时大于100us
155 1 Write_Cmd(0x01); //清除显示，并且设定地址指针为00H
156 1 DelayMs(15); //延时大于10ms
157 1 Write_Cmd(0x06); //指定在资料的读取及写入时，设定游标的移动方向及指定显示的移位，光标从右向左加1⌨️ 快捷键说明
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