Форум РадиоКот

Код: Выделить всё

#include <mega162.h>


#define RXB8 1
#define TXB8 0
#define UPE 2
#define OVR 3
#define FE 4
#define UDRE 5
#define RXC 7

#define FRAMING_ERROR (1<<FE)
#define PARITY_ERROR (1<<UPE)
#define DATA_OVERRUN (1<<OVR)
#define DATA_REGISTER_EMPTY (1<<UDRE)
#define RX_COMPLETE (1<<RXC)

// Get a character from the USART1 Receiver
#pragma used+
char getchar1(void)
{
char status,data; 
while (1)
      {
      while (((status=UCSR1A) & RX_COMPLETE)==0);
      data=UDR1;
 
//       if ((status & (FRAMING_ERROR | PARITY_ERROR | DATA_OVERRUN))==0)
         return data;
      };
}
#pragma used-

// Write a character to the USART1 Transmitter
#pragma used+
void putchar1(char c)
{
while ((UCSR1A & DATA_REGISTER_EMPTY)==0);
UDR1=c;
}
#pragma used-  
// ===============
#pragma used+
char getchar0 (void)
{
char status,dat; 
while (1)
      {
      while (((status=UCSR0A) & RX_COMPLETE)==0);
      dat=UDR0; 

//       if ((status & (FRAMING_ERROR | PARITY_ERROR | DATA_OVERRUN))==0)
         return dat;
      };
}
#pragma used-

// Write a character to the USART1 Transmitter
#pragma used+
void putchar0 (char v)
{
while ((UCSR0A & DATA_REGISTER_EMPTY)==0);
UDR0=v;
}
#pragma used-


// Standard Input/Output functions
#include <stdio.h>

// Declare your global variables here

void main(void)
{
// Declare your local variables here
 unsigned char data; 
  unsigned char c;
   unsigned char dat; 
  unsigned char v;
 
// Crystal Oscillator division factor: 1
#pragma optsize-
CLKPR=0x80;
CLKPR=0x00;
#ifdef _OPTIMIZE_SIZE_
#pragma optsize+
#endif

UCSR0A=0x00;
UCSR0B=0x18;
UCSR0C=0x86;
UBRR0H=0x00;
UBRR0L=0x52;

UCSR1A=0x00;
UCSR1B=0x18;
UCSR1C=0x86;
UBRR1H=0x00;
UBRR1L=0x52;

while (1)
      {
 
      if(!(UCSR1A&(1<<RXC))); 
        {
        data= getchar1();
        UDR1=UDR0;
        putchar0(v); 
        
      
      if(!(UCSR0A&(1<<RXC))); 
         {
        dat= getchar0();  
        UDR0=UDR1;
        putchar1(c); 
          }
        }
       };
 
     }