port.h

mega8515通过的DS1302芯片使用程序

#include <iom8515v.h>
#include <macros.h>

void port_init(void)
{
 PORTA = 0x00;
 DDRA  = 0x00;
 PORTB = 0x00;
 DDRB  = 0x00;
 PORTC = 0xFF;
 DDRC  = 0xFF;
 PORTD = 0x00;
 DDRD  = 0x00; 
 PORTE = 0x00;
 DDRE  = 0x00; 
}