1602shiyan.c

很好的关于LM016L液晶驱动的全部程序

#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint  unsigned int
 
void delay_nms(int);
bit LCD_busy();
void LCD_write_cmdata(uchar);
void LCD_write_wodata(uchar);
void LCD_Init();

sbit LCD_RS=P1^2;
sbit LCD_RW=P1^1;
sbit LCD_EA=P1^0;
sbit LCD_BF=P0^7;


uchar dis1[]={"   WELCOME TO   "};
uchar dis2[]={" wo de cheng xu "};
uchar dis3[]={"   WELCOME TO   "};
uchar dis4[]={"zz zhang ke zhi!"};

void delay_nms(int ms)
 {
   uchar i;
   while(ms--)
    { 
	  for(i=0;i<250;i++)
	   { 
	     _nop_();
		 _nop_();
		 _nop_();
		 _nop_();
	   }
	}
 }


bit LCD_busy()
 {
   
   bit flag;
   LCD_RS=0;
   LCD_RW=1;
   LCD_EA=1;
   
   
   if(LCD_BF==1)
    flag=1;
   else
    flag=0;
   LCD_EA=0;
   return flag;
   
 }


void LCD_write_cmdata(uchar cmdata)
 {
   while(LCD_busy());
   LCD_RS=0;
   LCD_RW=0;
   LCD_EA=0;
   
   
   P0=cmdata;
   
   
   LCD_EA=1;
   
   
   LCD_EA=0;
 }

void LCD_write_wodata(uchar wodata)
 {
   while(LCD_busy());
   LCD_RS=1;
   LCD_RW=0;
   LCD_EA=0;
   
    
	P0=wodata;
   
   
   LCD_EA=1;
   
   ;
  LCD_EA=0;
 }

void LCD_Init()
 {
 
   LCD_write_cmdata(0x3c);
   delay_nms(1);
   LCD_write_cmdata(0x0e);
  
   delay_nms(1);
   LCD_write_cmdata(0x06);
   delay_nms(1);
  
   
 }



void main()
 {
   uchar m;
  

   LCD_Init();
   delay_nms(10);
   
   while(1)
    {
	 
	  LCD_write_cmdata(0x80);
	  m=0;
	  
	  while(dis1[m]!='\0')
	   {
	     LCD_write_wodata(dis1[m]);
		 m++;
		 delay_nms(30);
	   }
	  
	
	    LCD_write_cmdata(0xc0);
	  m=0;
	  
	  while(dis2[m]!='\0')
	   {
	     LCD_write_wodata(dis2[m]);
		 m++;
		 delay_nms(30);
	   }
	   
	  delay_nms(100);
	  
	  
	  delay_nms(30);    
	  LCD_write_cmdata(0x01);//

	  LCD_write_cmdata(0x80);
	  m=0;
	    
	  while(dis3[m]!='\0')
	   {
	     LCD_write_wodata(dis3[m]);
		 m++;
		 delay_nms(30);
	   }	
		
	
	  LCD_write_cmdata(0xc0);
	  m=0;
	  	
	  while(dis4[m]!='\0')
	   {
	     LCD_write_wodata(dis4[m]);
		 m++;
		 delay_nms(30);
	   }	
	   
	  delay_nms(100); 
	   
	  LCD_write_cmdata(0x01);//
	  delay_nms(100);
	  
    }
 }