myport.c

来自「atmega128单片机串口调试程序」· C语言 代码 · 共 58 行

#include "includes.h"

/*port initiate*/
void port_init0(void)
{
    PORTA = 0xFF;
    DDRA  = 0xFF;
    PORTB = 0x00;
    DDRB  = 0x00;
    PORTC = 0x00; 
    DDRC  = 0xFF;
    PORTD = 0x00;
    DDRD  = 0x00;
    PORTE = 0x00;
    DDRE  = 0x00;
    PORTF = 0x00;
    DDRF  = 0x00;
    PORTG = 0x00;
    DDRG  = 0x00;
}

void port_init1(void)
{
    PORTA = 0x00;
    DDRA  = 0xFF;
    PORTB = 0x00;
    DDRB  = 0x00;
    PORTC = 0xFF; 
    DDRC  = 0xFF;
    PORTD = 0x00;
    DDRD  = 0x00;
    PORTE = 0x00;
    DDRE  = 0x00;
    PORTF = 0x00;
    DDRF  = 0x00;
    PORTG = 0x00;
    DDRG  = 0x00;
 }
 
 void port_init2(void)
 {
    PORTA = 0x55;
    DDRA  = 0xFF;
    PORTB = 0x00;
    DDRB  = 0x00;
    PORTC = 0xCC; 
    DDRC  = 0xFF;
    PORTD = 0x00;
    DDRD  = 0x00;
    PORTE = 0x00;
    DDRE  = 0x00;
    PORTF = 0x00;
    DDRF  = 0x00;
    PORTG = 0x00;
    DDRG  = 0x00;
 }