mian.c

我自己编写的atmega16的485通讯的范例

#include<iom16v.h>
#include<macros.h>
//#define 485bus_recive PORTD|=0X04;
//#define 485bus_send PORTD&=0XFB;
void main (void)
{
   USART_Init();
   while(1)
   {
   USART_Transmit(USART_Recive());
  }}
  /*DDRD|=0X04;
  DDRC=0XFF;
  PORTC=0XFF
  USART_Init();
  
}