LCD12864测试程序

#include
#include

#define uint unsigned int
#define uchar unsigned char
#define P0 P0

uchar code table1[]={"Wallacer"};
uchar code table2[]={"我喜欢单片机！"}; 
uchar code table3[]={"I Like MCU!"};
uchar code table4[]={"河北科技师范学院"};

sbit lcd_rs=P1^0;
sbit lcd_rw=P1^1;
sbit lcd_en=P1^2;
sbit lcd_psb=P2^4;
sbit lcd_rst=P2^3;

void delay(uint z) //延时 
{
 uint x,y;
 for(x=110;x>0;x--);
  for(y=z;y>0;y--);
}

void lcd_w_com(uchar com)//写命令 
{
 lcd_rs=0;
 lcd_rw=0;
 lcd_en=0;
 P0=com;
 delay(5);
 lcd_en=1;
 delay(5);
 lcd_en=0;
}

void lcd_w_data(uchar date)// 写数据 
{
 lcd_rs=1;
 lcd_rw=0;
 lcd_en=0;
 P0=date;
 delay(5);
 lcd_en=1;
 delay(5);
 lcd_en=0;
}

void lcd_init()//液晶初始化 
{
 lcd_rst=0;
 delay(10);
 lcd_rst=1;
 delay(10);
 lcd_psb=1;

 lcd_w_com(0x30);
 lcd_w_com(0x0c);
 lcd_w_com(0x14);
 lcd_w_com(0x01);
}

void lcd_pos(uchar x,uchar y)//选择写入位置 
{
 uchar pos;
 if(x==0)
  {x=0x80;}
 else if(x==1)
  {x=0x90;}
 else if(x==2)
  {x=0x88;}
 else if(x==3)
  {x=0x98;}
 pos=x+y;
 lcd_w_com(pos);
}

void main()
{
 uchar i;
 lcd_init();

 lcd_pos(0,2);
 i=0;
 while(table1[i]!='\0')
 {
  lcd_w_data(table1[i]);
  i++;
 }

 lcd_pos(1,1);
 i=0;
 while(table2[i]!='\0')
 {
  lcd_w_data(table2[i]);
  i++;
 }

 lcd_pos(2,1);
 i=0;
 while(table3[i]!='\0')
 {
  lcd_w_data(table3[i]);
  i++;
 }

 lcd_pos(3,0);
 i=0;
 while(table4[i]!='\0')
 {
  lcd_w_data(table4[i]);
  i++;
 }

 while(1);
}