device.c

atmega128单片机的串口通讯程序

#include "device.h"

void port_init(void)
{
  PORTA = 0xff;
  DDRA  = 0xff;
  PORTC = 0xff;
  DDRC  = 0xff;
}

void usart_init(void)
{
   UBRR1H = 0x00;
   UBRR1L = 0X67;
   UCSR1B = (1<<RXEN1)|(1<<TXEN1);//|(1<<RXCIE1);
   UCSR1C = (1<<UCSZ11)|(1<<UCSZ10);

}

void device_init(void)
{
  cli();
  port_init();
  usart_init();
  sei();
}