[文档下载] LCD12864 液晶显示器 模块化程序

/**********************

lcd12864.h 头文件

**********************/

#ifndef _LCD12864_H_

#define _LCD12864_H_

extern void lcd12864_busy(); //忙标志函数

extern void led12864_clear();//清屏

extern void lcd12864_init(); //初始化函数

extern void lcd12864_pxy(unsigned char p,unsigned char x,unsigned char y);//数据的显示位置，p＝0左半屏，p＝1右半屏，p＝2两半屏全选，xy为显示的坐标，第四象限，用正值表示。

extern void lcd12864_zifu(unsigned char p,unsigned char x,unsigned char,unsigned char m); //第m个字符的显示位置，与汉字的定义一样，只是xy的坐标的值应小于等于7.

extern void lcd12864_hanzi(unsigned char p,unsigned char x,unsigned char y,unsigned char m); //第m个汉字的显示位置，p＝0左半屏，p＝1右半屏，p＝2两半屏全选，xy为显示的坐标，第四象限，用正值表示,x或y的值都应小于等于3。m为显示的第m个汉字。

#endif



 



 

/**********************

 lcd12864.c 文件

**********************/



#include<reg51.h>

#define uint unsigned int

#define uchar unsigned char

sbit cs2=P2^0;

sbit cs1=P2^1;

sbit e=P2^2;

sbit rw=P2^3;

sbit rs=P2^4;

uchar code zifu[]=

{

 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//，0

 0x00,0x00,0x58,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  



 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//。1

 0x00,0x18,0x24,0x24,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,



 0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//！2

 0x00,0x00,0x00,0x5F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 

};

uchar code ziku[]=

{

  //0x80,0x40,0xF0,0x2C,0x43,0x20,0x98,0x0F,0x0A,0xE8,0x08,0x88,0x28,0x1C,0x08,0x00,//"你",

 //0x00,0x00,0x7F,0x00,0x10,0x0C,0x03,0x21,0x40,0x3F,0x00,0x00,0x03,0x1C,0x08,0x00,



 0x80,0x84,0x44,0x44,0x24,0x14,0x04,0xFF,0x04,0x14,0x24,0x24,0x46,0xC4,0x40,0x00,//"李",0 汉字后面的数字表示汉字的代号，方便使用

    0x00,0x08,0x08,0x08,0x09,0x49,0x89,0x7D,0x0D,0x0B,0x09,0x08,0x0C,0x08,0x00,0x00,



 0x10,0x10,0x10,0xFF,0x90,0x50,0xFE,0x92,0x92,0x92,0x92,0x92,0x9A,0xD3,0x82,0x00,//"振",1 

    0x02,0x42,0x81,0x7F,0x40,0x30,0x0F,0x00,0xFF,0x40,0x07,0x18,0x28,0x64,0x22,0x00,



  0x80,0x40,0x20,0xF8,0x07,0x48,0x48,0x48,0x48,0xFF,0x48,0x48,0x68,0x4C,0x08,0x00,//"伟",2

    0x00,0x00,0x00,0xFF,0x02,0x02,0x02,0x02,0x02,0xFF,0x02,0x12,0x22,0x1F,0x02,0x00,



 0x00,0x00,0x00,0xC0,0x70,0x20,0x00,0xFF,0x00,0x10,0x20,0xC0,0x80,0x00,0x00,0x00,//小3

 0x04,0x02,0x01,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x01,0x07,0x02,0x00,



 0x00,0x04,0x84,0x44,0x3C,0x44,0x85,0x06,0x04,0xC4,0x3C,0x44,0x84,0x04,0x00,0x00,//卒4

 0x04,0x05,0x04,0x04,0x04,0x04,0x05,0xFE,0x05,0x04,0x04,0x04,0x05,0x04,0x04,0x00,



 0x40,0x41,0xCE,0x04,0x00,0x80,0x40,0xBE,0x82,0x82,0x82,0xBE,0xC0,0x40,0x40,0x00,//设5

 0x00,0x00,0x7F,0x20,0x90,0x80,0x40,0x43,0x2C,0x10,0x10,0x2C,0x43,0xC0,0x40,0x00,



 0x20,0x21,0x2E,0xE4,0x00,0x00,0x20,0x20,0x20,0x20,0xFF,0x20,0x20,0x20,0x20,0x00,//计6

 0x00,0x00,0x00,0x7F,0x20,0x10,0x08,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,



 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//，7

 0x00,0x00,0x58,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  



 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//。8

 0x00,0x18,0x24,0x24,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,



 0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//！9

 0x00,0x00,0x00,0x5F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00

 

};



/*void delay(uchar i)   //1ms延时函数 

{

    uchar a,b;

    for(b=i;b>0;b--)

        for(a=110;a>0;a--);

}*/

void lcd12864_busy()    //忙标志位函数

{

 uchar i;

 rw=1;

 rs=0;

 while(1)

 {

  P0=0xff;

  e=1;

  //i=P0;

  e=0;

  i=P0;

  i=i&0x80;

  if(i!=0x80)

  break;

 }

}

lcd12864_writedat(uchar dat) //写数据函数

{

 //lcd12864_busy();

 rw=0;

 rs=1;

 e=1;

 P0=dat;

 e=0;

}

lcd12864_writecom(uchar com)  //写命令函数

{

 //lcd12864_busy();

 rw=0;

 rs=0;

 e=1;

 P0=com;

 e=0;

}

void lcd12864_init()   //初始化函数

{

  lcd12864_writecom(0x3f);//开显示 关显示为0x3e

  lcd12864_writecom(0xb8);//设置页地址为0.第一页。

  lcd12864_writecom(0xc0);//设置显示起始行地址，为第一行显示到液晶屏上

  lcd12864_writecom(0x40);//设置列地址

}

lcd12864_pxy(uchar p,uchar x,uchar y) //数据的位置，p＝0左半屏，p＝1右半屏，p＝2两半屏全选，xy为显示的坐标，第四象限，用正值表示。

{

  switch(p)

 {

  case 0:cs1=0;cs2=1;break;

  case 1:cs1=1;cs2=0;break;

  case 2:cs1=0;cs2=0;break;

 }

  lcd12864_writecom(0xb8+y);

  lcd12864_writecom(0x40+x);

}

lcd12864_zifu(uchar p,uchar x,uchar y,uchar m) //第m个字符的显示位置，与测字的定义一样，只是xy的坐标的值应小于等于7.

{

 uchar i;

 lcd12864_pxy(p,x*8,y);

 for(i=0;i<8;i++)

 {

  lcd12864_writedat(zifu[i+m*8]);

 }

}

lcd12864_hanzi(uchar p,uchar x,uchar y,uchar m) //第m个汉字的显示位置，p＝0左半屏，p＝1右半屏，p＝2两半屏全选，xy为显示的坐标，第四象限，用正值表示,x或y的值都应小于等于3。m为显示的第m个汉字。

{

 uchar i;

 lcd12864_pxy(p,x*16,2*y);

 for(i=0;i<16;i++)

 lcd12864_writedat(ziku[i+m*32]);

 lcd12864_pxy(p,x*16,2*y+1);

 for(i=0;i<16;i++)

 lcd12864_writedat(ziku[i+m*32+16]);

}

void lcd12864_clear()      //清屏函数

{            

 uint i;

 lcd12864_pxy(2,0,0);      //清左右两屏的第一、二、三、四页

 for(i=0;i<256;i++)

 {

  lcd12864_writedat(0x00);

 }          

 lcd12864_pxy(2,0,4);      //清左右两屏的第五、六、七、八页

 for(i=0;i<256;i++)

 {

  lcd12864_writedat(0x00);

 }

}



 



 

/******************************************

 main.c 主文件

******************************************/



#include<reg51.h>

#include"lcd12864.h"

void main()

{

 lcd12864_init();

 lcd12864_clear();

 lcd12864_hanzi(0,0,0,0);//李

 lcd12864_hanzi(0,1,0,1);//振

 lcd12864_hanzi(0,2,0,2);//伟

 lcd12864_hanzi(0,3,0,8);// 。

 lcd12864_hanzi(0,0,2,3);//小

 lcd12864_hanzi(0,1,2,4);//卒

 lcd12864_hanzi(0,2,2,5);//设

 lcd12864_hanzi(0,3,2,6);//计

 lcd12864_hanzi(1,0,2,9);//！

 lcd12864_zifu(1,6,6,8); //！的左上部 分开以字符的形式显示

 lcd12864_zifu(1,7,6,9); //！的右上部

 lcd12864_zifu(1,6,7,10);//！的左下部

 lcd12864_zifu(1,7,7,11);//！的右下部

 while(1);

}