mega16test.c

avr1602源程序 avr1602源程序

#include <iom16v.h>
#define uchar unsigned char
#define fosc 12000000 //晶振7.3728MHZ
            
void port_init(void)
{
 PORTA = 0xFF;
 DDRA  = 0x00;
 PORTB = 0xFF;
 DDRB  = 0x00;
 PORTC = 0xFF; //m103 output only
 DDRC  = 0xFF;
 PORTD = 0xFF;
 DDRD  = 0x00;
}

void delay(uchar t)
{
  uchar i,j;
  for(i=0;i<t;i++)
  for(j=0;j<250;j++);
}


/*			RS232通信main函数		*/
void main(void)
{
 port_init();
 PORTC = 0x0;
 while(1)
    {
      delay(250); delay(250); delay(250);
	  delay(250); delay(250); delay(250);
	  delay(250); delay(250); delay(250);
	  PORTC = 0xff;
	  delay(250); delay(250); delay(250);
	  delay(250); delay(250); delay(250);
	  delay(250); delay(250); delay(250);
	  PORTC = 0x0;
    }
}