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//本程序为最简单的显示汉字程序
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
sbit rs=P1^0;
sbit rw=P1^1;
sbit e=P1^2;
//sbit rst=P1^5;
uchar code table1[]="好好学习单片机！" ;
uchar code table2[]=123456" ;
/*****************延时***************/
void delayms(uint z) //延时子程序
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void delay50us(uint z) //延时子程序
{
uint x,y;
for(x=z;x>0;x--)
for(y=19;y>0;y--);
}
/***********写命令**********************/
void write_12864com(uchar com)
{
e=0;//为后面做准备
rw=0;//为低时写有效
rs=0;//为为是写命令，为1是写数据
delay50us(1);
P0=com;
e=1;//一个高脉冲，命令写入
delay50us(10);
e=0;//拉低为下一个准备
delay50us(10);
}
/***********写数据**********************/
void write_12864dat(uchar dat)
{
e=0;//为后面做准备
rw=0;//为低时写有效
rs=1;//为为是写命令，为1是写数据
delay50us(1);
P0=dat;
e=1;//一个高脉冲，命令写入
delay50us(10);
e=0;//拉低为下一个准备
delay50us(10);
}
void init_12864()
{
delayms(100);
// rst=1;//rst为1是使用8位并行数据传送
write_12864com(0x30);
delay50us(5);
write_12864com(0x30);
delay50us(5);
write_12864com(0x0e);//打开所有显示
delay50us(5);
write_12864com(0x0c);//不显示光标
delay50us(5);
write_12864com(0x01);//清除显示
delayms(20);
write_12864com(0x06); //模示设置
delay50us(5);
}
void hanzi(uchar *ch)
{
while(*ch!=0)
write_12864dat(*ch++);
delayms(200);
}
void display3()
{
uchar i;
write_12864com(0x90);
for(i=0;i<16;i++)
{
write_12864dat(table1[ i]);
delay50us(5);
}
}
void display4()
{
uchar i;
write_12864com(0x98);
for(i=0;i<16;i++)
{
write_12864dat(table2[ i]);
delay50us(5);
}
}
void display5()
{
write_12864com(0x80);
//hanzi("白日依山尽， 唐");
hanzi("欢迎来到——");
delay50us(5);
write_12864com(0x90);
hanzi(单片机");
//hanzi("黄河入海流。王");
delay50us(5);
write_12864com(0x88);
//hanzi("欲穷千里目，之");
hanzi("单片机人人能学好");
delay50us(5);
write_12864com(0x98);
//hanzi("更上一层楼。涣");
hanzi("我棒，我很行！！");
delay50us(5);
}
void main()
{
init_12864();
//display3();
//display4();
display5();
P2=0x00;
while(1);
}
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