lesson6.c

AVR单片机视频教程的课件和每一次课的源程序是学习AVR单片机的首选 第6节

#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[]="WWW.TXMCU.COM";

void delay(uint ms)
{
        uint i,j;
	for(i=0;i<ms;i++)
	   {
	   for(j=0;j<1141;j++);
       }
}
void write_com(uchar com)
{
       PORTD&=~BIT(4);
	   PORTD&=~BIT(5);
	   PORTB=com;
	   PORTD|=BIT(6);
	   delay(1);
	   PORTD&=~BIT(6);
}

void write_dat(uchar dat)
{     
       PORTD|=BIT(4);
	   PORTD&=~BIT(5);
	   PORTB=dat;
	   PORTD|=BIT(6);
	   delay(1);
	   PORTD&=~BIT(6);

}
void  main()
{
     uchar i;
	  DDRB=0XFF;
	  DDRD|=BIT(4)|BIT(5)|BIT(6);
	  PORTD&=~BIT(6);
	  
	  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);
	  }
	  
}