Форум РадиоКот

Код: Выделить всё

define F_CPU 8000000UL

#include <avr/io.h>
#include <avr/delay.h>
#include <avr/interrupt.h>

#include <stdlib.h>

#include "uart.h"
#include "uart.c"


void Timer_init(void)
{
	TCCR1A = (0<<COM1A1) | (0<<COM1A0)| (0<<COM1B1) | (0<<COM1B0) | (0<<FOC1A) | (0<<FOC1B) | (0<<WGM11) | (0<<WGM10);
	TCCR1B = (0<<ICNC1)  | (0<<ICES1) | (0<<WGM13)  | (0<<WGM12)  | (0<<CS12)  | (1<<CS11)  | (0<<CS10);
}

#define Timer_ON  TCCR1B = 1<<CS11
#define Timer_OFF TCCR1B = 0

bool     IR_Rx_Active = false;
char _c_bit = 0;
unsigned long _data = 0;
unsigned long data = 0;
unsigned int _TCNT1 = 0;
char   _buffer[12]; char temp = 0;
ISR(INT0_vect)
{
	_TCNT1 = TCNT1;
	TCNT1  = 0;
	
	if (_TCNT1 == 0)
	{
		Timer_ON;
	}
	
	if (_TCNT1 > 13000)
	{
		IR_Rx_Active = true;
	}
	
	if (IR_Rx_Active)
	{
		if (_TCNT1 > 2000)
		{
			_data = 1;
		} 
		else
		{
			_data = 0;
		}
		
		if (_c_bit == 32)
		{
			IR_Rx_Active = false;
			
			Timer_OFF;

			TCNT1 = 0;

			data = _data;

			_data = 0;

			_c_bit = 0;
		}
		else
		{
			_data  <<= 1;  // сдвигаем код влево
		}
		
		_c_bit++;
	} 
	_TCNT1 = 0;
}

void MCU_init(void)
{
	UART_init();
	//Timer_init();
	
	
	DDRD  &= ~1<<2;
	PORTD |=  1<<2;
	
	MCUCR |= (1<<ISC01)|(1<<ISC00);
	GICR  |= (1<<INT0);
	
	sei();
}

int main(void)
{
     MCU_init();
	
     char   _buffer[12];

     while(1)  // раз в 10 секунд отправляем по UART
    {		
	ultoa(data, _buffer, 10);
	UART_WriteString(_buffer);
	UART_WriteChar(10);
			
	for (int c=0; c<12; c++)
	{
		_buffer[c]=0;
	}
			
		_delay_ms(10000); 
               data = 0;
    }
}