text1.c

LCD12864显示汉字和数字(程序和电路）

#include<reg51.h>
#include"zifuku.h"
#define uchar unsigned char
#define uint unsigned int
sbit CS1=P2^0;			//LCD右屏幕
sbit CS2=P2^1;			//LCD左屏幕
sbit RS=P2^2;			//LCD数据、指令寄存器
sbit RW=P2^3;			//LCD读、写操作
sbit E=P2^4;			//LCD使能信号，下降沿有效


/*
	自定义延时子函数
*/
void delayms(uchar z)
{
	 int x,y;
	 for(x=z;x>0;x--)
	    for(y=110;y>0;y--);
}

/*
     判断LCD忙信号状态
*/
void buys()
{
	 int dat;
	 RW=1;
	 RS=0;
	 do
	   {	
	        P0=0x00;
	        E=1;
			dat=P0;
			E=0;
			dat=0x80 & dat;
		} while(!(dat==0x00));
}

/*
     LCD写指令函数
*/
void w_com(uchar com)
{
	 //buys();
	 RW=0;
	 RS=0;
	 E=1;
	 P0=com;
	 E=0;
}

 /*
     LCD写数据函数
*/
void w_date(uchar date)
{
	 //buys();
	 RW=0;
	 RS=1;
	 E=1;
	 P0=date;
	 E=0;
}


/*
	   LCD选屏函数
*/
void select_screen(uchar screen)
{
	   switch(screen)
	   {
	   		  case 0:     //选择全屏
			             CS1=0;
						 CS2=0;
	   					 break;
			  case 1:     //选择左屏
			             CS1=0;
						 CS2=1;
	   					 break;
			           
	   	   	  case 2:     //选择右屏
			             CS1=1;
						 CS2=0;
	   					 break;
			/*  case 3:     //选择右屏
			             CS1=1;
						   CS2=1;
	   				      break;
			*/
	   }	   	  
	   
}

/*
	 LCDx向上滚屏显示
*/
void lcd_rol()
{
	   int x;
	   for(x=0;x<64;x++)
	      {
		  		select_screen(0);
				w_com(0xc0+x);
		  		delayms(500);
		  }


}

/*
	   LCD清屏函数：清屏从第一页的第一列开始，总共8页，64列
*/
void clear_screen(screen)
{
	 int x,y;
	 select_screen(screen);		   //screen:0-选择全屏，1-选择左半屏，2-选择右半屏
	 for(x=0xb8;x<0xc0;x++)			//从0xb8-0xbf,共8页
	    {
			w_com(x);
			w_com(0x40);			//列的初始地址是0x40
			for(y=0;y<64;y++)
			   {
			   	    w_date(0x00);
			   
			    }
	     }	   
}

/*
		LCD显示汉字字库函数
*/
void lcd_display_hanzi(uchar screen,uchar page,uchar col,uint mun)
{		//screen:选择屏幕参数，page:选择页参数0-3，col:选择列参数0-3，mun:显示第几个汉字的参数
      int a;
	  mun=mun*32;
	  select_screen(screen);
	  w_com(0xb8+(page*2));
	  w_com(0x40+(col*16));
	  for (	a=0;a<16;a++)
	     {
		 	   w_date(hanzi[mun++]);
		 
		 }
	  w_com(0xb8+(page*2)+1);
	  w_com(0x40+(col*16));
	  for (	a=0;a<16;a++)
	     {
		 	   w_date(hanzi[mun++]);
		 
		 }
}

 /*
		LCD显示字符字库函数
*/
void lcd_display_zifuk(uchar screen,uchar page,uchar col,uchar mun)
{		//screen:选择屏幕参数，page:选择页参数0-3，col:选择列参数0-7，mun:显示第几个汉字的参数
      int a;
	  mun=mun*16;
	  select_screen(screen);
	  w_com(0xb8+(page*2));
	  w_com(0x40+(col*8));
	  for (	a=0;a<8;a++)
	     {
		 	   w_date(zifu[mun++]);
		 
		 }
	  w_com(0xb8+(page*2)+1);
	  w_com(0x40+(col*8));
	  for (	a=0;a<8;a++)
	     {
		 	   w_date(zifu[mun++]);
		 
		 }
}

/*
		LCD显示数字字库函数
*/
void lcd_display_shuzi(uchar screen,uchar page,uchar col,uchar mun)
{		//screen:选择屏幕参数，page:选择页参数0-3，col:选择列参数0-7，mun:显示第几个汉字的参数
      int a;
	  mun=mun*16;
	  select_screen(screen);
	  w_com(0xb8+(page*2));
	  w_com(0x40+(col*8));
	  for (	a=0;a<8;a++)
	     {
		 	   w_date(shuzi[mun++]);
		 
		 }
	  w_com(0xb8+(page*2)+1);
	  w_com(0x40+(col*8));
	  for (	a=0;a<8;a++)
	     {
		 	   w_date(shuzi[mun++]);
		 
		 }
}

/*
		LCD初始化函数
*/
void lcd_init()
{
	 w_com(0x3f);		 //LCD开显示
	 w_com(0xc0);		 //LCD行初始地址，共64行
	 w_com(0xb8);		 //LCD页初始地址，共8页
	 w_com(0x40);		 //LCD列初始地址，共64列
    
}

/*
		LCD显示主函数
*/
void main()
{
  //第一行
      int x;
	  lcd_init();			  //LCD初始化
	  clear_screen(0);		  //LCD清屏幕
	  lcd_display_shuzi(1,0,4,5);		  //LCD显示数字
	  lcd_display_shuzi(1,0,5,1);		  //LCD显示数字
      lcd_display_hanzi(1,0,3,0);		  //LCD显示汉字
	  lcd_display_hanzi(2,0,0,1);		  //LCD显示汉字		  //LCD字符汉字
	  lcd_display_hanzi(2,0,1,2);		  //LCD显示汉字
  //第二行	 
	  lcd_display_zifuk(1,1,2,0);		  //LCD显示字符
	  lcd_display_zifuk(1,1,3,0);		  //LCD显示字符
	  lcd_display_zifuk(1,1,4,0);		  //LCD显示字符
	  lcd_display_zifuk(1,1,5,4);		  //LCD显示字符
	  lcd_display_shuzi(1,1,6,8);		  //LCD显示字符
	  lcd_display_shuzi(1,1,7,9);		  //LCD显示字符
	  lcd_display_shuzi(2,1,0,5);		  //LCD显示字符
	  lcd_display_shuzi(2,1,1,1);		  //LCD显示字符
	  lcd_display_zifuk(2,1,2,4);
	  lcd_display_zifuk(2,1,3,1);
	  lcd_display_zifuk(2,1,4,2);
	  lcd_display_zifuk(2,1,5,3);
  //第三行
	  for(x=0;x<4;x++)
	     {
		 	 lcd_display_hanzi(1,2,x,3+x);		  //LCD显示汉字
		 }
	
	  for(x=0;x<4;x++)
	     {
		 	 lcd_display_hanzi(2,2,x,7+x);		  //LCD显示汉字
		 }
  //第四行

	   for(x=0;x<4;x++)
	     {
		 	 lcd_display_zifuk(1,3,x,5+x);		  //LCD显示汉字
		 }
	   lcd_display_shuzi(1,3,4,7);
	   lcd_display_shuzi(1,3,5,5);
	   lcd_display_shuzi(1,3,6,5);
	   lcd_display_zifuk(1,3,7,9);
	   lcd_display_shuzi(2,3,0,8);
	   lcd_display_shuzi(2,3,1,9);
	   lcd_display_shuzi(2,3,2,9);
	   lcd_display_shuzi(2,3,3,5);
	   lcd_display_shuzi(2,3,4,6);
	   lcd_display_shuzi(2,3,5,8);
	   lcd_display_shuzi(2,3,6,9);
	   lcd_display_shuzi(2,3,7,2);
       while(1);
	  /* while(1)
	   {				 //	 LCD向上滚屏显示
	   	  lcd_rol();
	   }
	  */
}