12864并口._c

avr基础程序大全

#include <iom16v.h>
#include <macros.h>
#define  uchar unsigned char
#define  uint  unsigned int

//#pragma data:code
 
const uchar table[]="I LIKE AVR !";
const uchar table1[]="5 XUE DIANZI ";
const uchar table2[]="我爱单片机 ";

void delay(uint ms)
{
        uint i,j;
	for(i=0;i<ms;i++)
	   {
	   for(j=0;j<1141;j++);
       }
}


void write_com(uchar com)
{
       PORTC&=~BIT(5);
	   PORTC&=~BIT(6);
	   PORTA=com;
	   PORTC|=BIT(7);
	   delay(1);
	   PORTC&=~BIT(7);
}

void write_dat(uchar dat)
{     
       PORTC|=BIT(5);
	   PORTC&=~BIT(6);
	   PORTA=dat;
	   PORTC|=BIT(7);
	   delay(1);
	   PORTC&=~BIT(7);
}
void  main()
{
      uchar i;
	  DDRA=0XFF;
	  DDRC|=BIT(5)|BIT(6)|BIT(7)|BIT(4)|BIT(2);
	  PORTC&=~BIT(7);
	  PORTC|=BIT(4);
	  PORTC|=BIT(2);
	  
	  write_com(0X38);
	  delay(5);
	  write_com(0X01);
	  delay(5);
	  write_com(0X0C);
	  delay(5);
	  write_com(0X06);
	  delay(5);
	  write_com(0X80+0X10);
	  delay(5);
	  for(i=0;i<12;i++)
	  {
	     write_dat(table[i]);
		 delay(5);
	  }
	  write_com(0X80+0X50);
	  delay(5);
	    for(i=0;i<13;i++)
	  {
	     write_dat(table1[i]);
		 delay(5);
	  }
	  for(i=0;i<16;i++)
	  {
	     write_com(0X18);
		 delay(500);
	  }
	  write_com(0X80);
	  for(i=0;i<13;i++)
	  {
	     write_dat(table2[i]);
		 delay(5);
	  }
	  
}