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297 kaklik 1 
//----------------------------------------------------------------------------------
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//	Prevodnik RS232 <--> RS485 s prodlevou pri prevodu smerem do RS485
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//	pri startbitu na RS232 zapne okamzite vysilac pokud nejsou detekovana data z RS485. pak ceka definovanou dobu, nez opet prepne kanal na prijem.
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//----------------------------------------------------------------------------------
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <avr/eeprom.h>
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#include <avr/pgmspace.h>
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#define F_CPU 3686400UL
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#include <util/delay.h>
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void delay_ms(unsigned int ms)
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{
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  while(ms)
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  {
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    _delay_ms(0.96);
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	ms--;
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  }
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}
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// ------------------------------------------------------------------
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//	Main
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// ------------------------------------------------------------------
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int main(void)
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{
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  DDRD |= (1<<DDD5);
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  DDRB |= (1<<DDB3);
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  TCCR1B |= ((1 << CS10) | (1 << CS11));  // Set up timer
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  PORTB |= (1<<PB3);
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  while(1)
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  {
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	if(!(PIND & (1<<PD1)))
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	{
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	  TCNT1 = 0;
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	  PORTD &= ~(1<<PD5);
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    }
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    if ((TCNT1 >= 1000) && ((PIND & (1<<PD1))))
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    {
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	  PORTD |= (1<<PD5);
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	  TCNT1 = 0;
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    }
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  }
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  return( 0 );
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}