Elektronická škrtiaca klapka: Rozdiel medzi revíziami

#include <avr/io.h>
#include "uart.h"
#define F_CPU 16000000UL
#define BAUDRATE       9600
#include <stdio.h>
FILE mystdout = FDEV_SETUP_STREAM(uart_putc, NULL, _FDEV_SETUP_WRITE);
                              
int main(void)
{
  adc_init();
  hw_init();
  uart_init();
  stdout = &mystdout;          
  unsigned int measuredValue;

  DDRD|=(1<<PD6);       


  

  TCNT0=0;                        

  OCR0A=0;                      
  

                                 

  TCCR0A|=(1<<COM0A1)|(1<<COM0B1)|(1<<WGM01)|(1<<WGM00);

  TCCR0B|=(1<<CS02)|(1<<CS00);      
  
  while(1)
  {
	measuredValue = adc_read(4);
	printf("hodnota: %04d \r",measuredValue);
	
	OCR0A=measuredValue/4;
  }
  
  return(0);
}

#include <avr/io.h>

void adc_init(void);                                  

unsigned int adc_read(char a_pin);

/* ************************************************************************* */
/* FileName:             uart.c                                              */
/* ************************************************************************* */

#include <avr/io.h>
#include <util/delay.h>
#include "uart.h"

void hw_init( void )
{ 
  DDRB |= (1<<LED);    // PORTB.5 kde je LED ma byt OUTPUT
  /* sem si mozete dopisat svoje vlastne inicializacne prikazy */ 	
}

void uart_init( void ) 
{
//  for different BAUD rate change the project settings, or uncomment 
//  following two lines:	
//	#undef  BAUD           // avoid compiler warning
//  #define BAUD 115200
	
   #include <util/setbaud.h>  // requires defined BAUD
   
   UBRR0H = UBRRH_VALUE;
   UBRR0L = UBRRL_VALUE;
   #if USE_2X                 // defined in setbaud.h 
    UCSR0A |= (1 << U2X0);
   #else
    UCSR0A &= ~(1 << U2X0);
   #endif


    UCSR0C = _BV(UCSZ01) | _BV(UCSZ00); /* 8-bit data */
    UCSR0B = _BV(RXEN0) | _BV(TXEN0);   /* Enable RX and TX */	
}


int uart_putc( char c, FILE *stream )
{
   if (c == '\n') 
      uart_putc('\r',stream);
   
   loop_until_bit_is_set(UCSR0A, UDRE0); /* Wait until data register empty. */
   UDR0 = c;
   return 0;
}


void uart_puts(const char *s)
{
  /* toto je vasa uloha */
}

char uart_getc(void) 
{
    loop_until_bit_is_set(UCSR0A, RXC0); /* Wait until data exists. */
    return UDR0;
}

void delay(int delay)      // vlastna funkcia pre dlhsie casy 
{
  for (int i=1; i<=delay; i++)
  _delay_ms(1);
}