guangdian.c

光电开关的程序

#include <reg52.h>
#include <absacc.h>
#include <intrins.h>
#define uint unsigned int
#define uchar unsigned char
#define D_PORT    P1
sbit RS=P3^0;
sbit RW=P3^1;
sbit E=P3^2;
//sbit GD=P3^3;

sbit dj=P2^7;
sbit s1=P2^0;
sbit s2=P2^1;
sbit s3=P2^2;
//#define     LCD_BUS       P1
uchar i,j,ren;
uchar code table0[]="2008-11-12--WED";
uchar code table1[]="22: 58: 55";

void wait_free()
{
	unsigned char retb;

     do{
	      D_PORT=0xff;
	      RS=0;
	      RW=1;
	      E=1;
	      retb=D_PORT;
	
	      E=0;
     }while((retb&0x80)!=0);
}

void write_commm(unsigned char cmd_dat,bit cd)
{
	wait_free();

   if(cd)RS=1;
   else RS=0;
   RW=0;
   E=1;
   D_PORT=cmd_dat;
   E=0;
}

void delay(unsigned int t)
{  unsigned int i,j;
   for(i=0;i<t;i++)
      for(j=0;j<10;j++)
         ;
}

void hzkdis(unsigned char code *s)
{  while(*s>0)
   {  write_commm(*s,1);
      s++;
      delay(500);
   }
}


void lcdreset()
{  

	delay(2000);
   write_commm(0x30,0);       //选择基本指令集
   write_commm(0x30,0);       //选择8bit数据流
   delay(5);
   write_commm(0x0c,0);       //开显示(无游标、不反白)
   delay(5);
   write_commm(0x01,0);       //清除显示，并且设定地址指针为00H
   delay(5);
   write_commm(0x06,0);       //指定在资料的读取及写入时，设定游标的移动方向及指定显示的移位
}
void init()
{   

	//GD=0;
	EA=1;
	EX1=1;
 // TMOD=0x90;
  // TMOD=0x11;
	//TH1=(65536-65534)/256;
  // TL1=(65536-65534)%256;
	IE1=1;
	ET1=1;
   IT1=1;
   TR1=0;


}



void main()
{
  init();
  lcdreset();
  delay(1000);
  write_commm((0x80),0);
	for(i=0;i<=16;i++)
	    {
          write_commm(table0[i],1);delay(200);
		 }
	delay(1000);

  write_commm((0x90),0); delay(200);
	 for(j=0;j<9;j++)
		{
         write_commm(table1[j],1);delay(200);
		}
   delay(1000);

	write_commm(0x0f,0);//开光标显示 			 					  
    write_commm(0x98,0);
    hzkdis("设计创新研究室!");    delay(5000);
     write_commm(0x0c,0);//关光标
 while(1)   
 	   {
	   	;
	
		}
 							
}


void exter1() interrupt 2
{
	  write_commm((0x88+3),0);delay(100);
	 ren++;
	 if(ren==10)ren=0;
	 write_commm((0x30+ren),1);


}