实验八_LCM1602液晶显示实验

1、实验九 LCM1602液晶显示实验一、实验目的1. 掌握keil C51软件与protues软件联合仿真调试的方法；2. 掌握LCM1602液晶模块显示西文的原理及使用方法；3. 掌握用8位数据模式驱动LCM1602液晶的C语言编程方法；二、实验内容1. 用protues设计一LCM1602液晶显示接口电路。要求利用P0接LCM1602液晶的数据端，P2.0P2.2做LCM1602液晶的控制信号输入端。P3.0P3.4口扩展4个功能键K1K4，电路如下2. 编写程序，实现字符的静态和动态显示，字符为第一行“姓名全拼”第二行“专业全拼+学号”。液晶的初始化，字符显示程序可参考官网的程序文件。3.

2、 编写程序，利用功能键实现字符的纵向滚动和横向滚动等效果显示，主程序静态显示“My Informatiom”,显示字符如下：1. 姓名全拼2. 专业全拼+学号3. MCS-51 EXP84. LCD DISPLAY ”三实验步骤1.用Protues设计1602液晶显示接口电路；2.在Keil51中编写液晶显示控制程序，编译通过后，与Protues联合调试；3.按功能键，观察字符及效果是否正确显示；四实验电路2五实验程序1静态#include<reg51.h>#define uchar unsigned char#define uint unsigned intuchar code

3、table="1.wanglin"uchar codetable1="2.tongxin 517"sbit lcden=P22; sbit lcdrs=P20;uchar num;void delay(uint z)uint x,y;for(x=z;x>0;x-)for(y=110;y>0;y-);void write_com(uchar com)lcdrs=0;P0=com;delay(5);lcden=1;delay(5);lcden=0;void write_data(uchar date)lcdrs=1;P0=date;delay(5

4、);lcden=1;delay(5);lcden=0;void init()lcden=0;write_com(0x38);write_com(0x0c);write_com(0x06);write_com(0x01);write_com(0x80+0x1);void main()init(); while(1)write_com(0x80);for(num=0;num<10;num+)write_data(tablenum);delay(300);write_com(2);write_com(0x80+0x40);for(num=0;num<13;num+)write_data(

5、table1num);delay(300);1动态#include<reg51.h>#define uchar unsigned char#define uint unsigned intuchar code table="1.wanglin"uchar codetable1="2.tongxin 517"sbit lcden=P22; sbit lcdrs=P20;uchar num;void delay(uint z)uint x,y;for(x=z;x>0;x-)for(y=110;y>0;y-);void write_co

6、m(uchar com)lcdrs=0;P0=com;delay(5);lcden=1;delay(5);lcden=0;void write_data(uchar date)lcdrs=1;P0=date;delay(5);lcden=1;delay(5);lcden=0;void init()lcden=0;write_com(0x38);write_com(0x0c);write_com(0x06);write_com(0x01);write_com(0x80+0x1);void main()init(); while(1)write_com(0x80);for(num=0;num<

7、;10;num+)write_data(tablenum);delay(300);write_com(2);write_com(0x80+0x40);for(num=0;num<13;num+)write_data(table1num);delay(300);write_com(1);2#include<reg51.h>#include <intrins.h>#define uchar unsigned char#define uint unsigned intsbit lcden=P22;sbit lcdrs=P20;sbit lcdrw=P21;sbit bu

8、sy=P07;sbit K1=P30;sbit K2=P31;bit flag1,flag2,flag3,flag4;uchar num,i;uchar code tab="My information!"uchar code tab1="1.wanglin"uchar code tab2="2.tongxin 517"uchar code tab3="3.MCS-51 EXP8"uchar code tab4="4.LCD DISPLAY"void LCD_check_busy() while

9、(1) lcden=0; lcdrs=0; lcdrw=1; P0=0xff; lcden=1; if(busy=0)break; lcden=0;void delay(uint x)while(x-); void delay_ms(uint x)int a,b;for(a=x;a>0;a-)for(b=110;b>0;b-); void write_com(uchar com)LCD_check_busy();lcdrs=0;lcden=0;lcdrw=0; P0=com;lcden=1;lcden=0;void write_dat(uchar dat)LCD_check_bus

10、y();lcdrs=1; P0=dat;delay(5);lcdrw=0; lcden=1;lcden=0;void lcd_init() lcden=0;write_com(0x38);write_com(0x0f);write_com(0x06);void write_str(uchar *str) while(*str!='0') while(flag3); if(flag4)write_com(0x01);break; write_dat(*str) ; str+; delay_ms(50);void main()uchar *ptr=tab;uchar *p=tab1

11、,*q=tab2,*m=tab3,*n=tab4;TMOD=0x00;TH0=(65536-20000)/256;TL0=(65536-20000)%256;TR0=1;ET0=1;EX0=1;EX1=1;IT0=IT1=1;EA=1; PX1=1;lcd_init();while(1)write_com(01);write_com(0x80+0x00);for(i=0;i<15;i+)if(flag1|flag2)break;write_dat(tabi);delay_ms(100);while(flag1=1)write_com(0x01);write_com(0x80+0x00);

12、write_str(p);if(flag4)flag4=0; break;write_com(0xc0+0x00);write_str(q);if(flag4)flag4=0; break;delay_ms(800);write_com(0x01);write_com(0x80+0x00);write_str(q);if(flag4)flag4=0; break;write_com(0xc0+0x00);write_str(m);if(flag4)flag4=0; break;delay_ms(800);write_com(0x01);write_com(0x80+0x00);write_st

13、r(m);if(flag4) flag4=0; break; write_com(0xc0+0x00);write_str(n);if(flag4) flag4=0; break;delay_ms(800);write_com(0x01);write_com(0x80+0x00);write_str(n);if(flag4)flag4=0; break;write_com(0xc0+0x00);write_str(p);if(flag4)flag4=0; break;delay_ms(800);while(flag2=1) write_com(0x01);write_com(0x80+0x00

14、);write_str(p);if(flag4)flag4=0; break;write_com(0x80+0x15);write_str(q); if(flag4)flag4=0; break;write_com(0xc0+0x00);write_str(m);if(flag4)flag4=0; break;write_com(0xc0+0x15);write_str(n);if(flag4)flag4=0; break;while(flag2=1) write_com(0x1c);delay_ms(300);while(flag3); void key12()interrupt 1TH0=(65536-20000)/256;TL0=(65536-20000)%256;if(K1=0)delay_ms(5);if(K1=0&&flag2=0) TR0=0;flag1=1; if(K2=0)delay_ms(5);if(K2=0&&flag1=0) TR0=0;flag2=1;void key3() interrupt 0EX1=0; delay_ms(5); EX1=1;if(flag1|flag2=1)flag3=flag3;void key4() interrupt 2EX1=0; delay_ms(5); EX1=1;fla