[syntax=c]/*
* main.c
*
* Created on: 04-11-2013
* Author: Michal
*/
#define FOSC 8000000// Clock Speed
#define BAUD 19200
#define MYUBRR (FOSC+BAUD*8UL)/(16UL*BAUD)-1
#include <avr/io.h>
#include <util/delay.h>
#include <avr/interrupt.h> //dołączenie biblioteki z przerwaniami
#include <usart_obsluga.h>
int main(void) //program główny
{
USART_Init(MYUBRR);
//USTAWIENIE PRZYCISKÓW
PORTC &= ~((1<<PC0)|(1<<PC1)); //ZEROWANIE PC0 I PC1
//USTAWIENIE WYJSC POD PWM
DDRB |= (1<<PB1);
DDRB |= (1<<PB2);
//PWM FAST 8BIT
TCCR1A |= (1<<WGM10);
TCCR1B |= (1<<WGM12);
//PRESKALER 64BIT
TCCR1B |= (1<<CS10);
TCCR1B |= (1<<CS11);
//USTAWIENIE OC1A I OC1B
TCCR1A |= (1<<COM1B1);
TCCR1A |= (1<<COM1A1);
//deklaracja zmiennych
//ustawienie portu pc5 i pc4 jak wyjscia
DDRD |=(1<<PD7);
DDRB |=(1<<PB0);
char input;
while(1)
{
input=USART_Receive();
if (input=='1')
{
PORTD |=(1<<PD7);
PORTB |=(1<<PB0);
PORTD |=(1<<PD7);
PORTB &= ~ (1<<PB0);
OCR1A=255;
}
if (input=='2')
{
PORTD |=(1<<PD7);
PORTB |=(1<<PB0);
PORTB |=(1<<PB0);
PORTD &= ~ (1<<PD7);
OCR1A=255;
}
if (input=='3')
{
PORTD |=(1<<PD7);
PORTB |=(1<<PB0);
}
}
}[/syntax]
usart_obsluga.h
[syntax=c]/*
* usart_obsluga.h
*
* Created on: 04-11-2013
* Author: Michal
*/
#ifndef USART_OBSLUGA_H_
#define USART_OBSLUGA_H_
void USART_Init( unsigned int ubrr)
{
/* Set baud rate */
UBRRH = (unsigned char)(ubrr>>8);
UBRRL = (unsigned char)ubrr;
/* Enable receiver and transmitter */
UCSRB = (1<<RXEN)|(1<<TXEN);
/* Set frame format: 8data, 1stop bit */
UCSRC = (1<<URSEL)|(1<<UCSZ0)|(1<<UCSZ1);
}
void USART_Transmit( unsigned char data )
{
/* Wait for empty transmit buffer */
while ( !( UCSRA & (1<<UDRE)) );
/* Put data into buffer, sends the data */
UDR = data;
}
unsigned char USART_Receive(void)
{
/*Wait for data to be received*/
while
( !(UCSRA & (1<<RXC)) );
/*Get and return received data from buffer*/
return UDR;
}
#endif /* USART_OBSLUGA_H_ */[/syntax]
Errory:
**** Build of configuration Release for project avr_autko ****
make all
Building target: avr_autko.elf
Invoking: AVR C Linker
avr-gcc -Wl,-Map,avr_autko.map -mmcu=atmega8 -o "avr_autko.elf" ./main.o
./main.o: In function `main':
main.c:(.text+0xc): undefined reference to `USART_Init'
main.c:(.text+0x44): undefined reference to `USART_Receive'
make: *** [avr_autko.elf] Error 1
**** Build Finished ****
------------------------ [ Dodano po: 33 minutach ]
Znalazłem rozwiązanie : wystarczyło zamiast #include <usart_obsluga.h> zrobić #include "usart_obsluga.h".
Temat do zamknięcia.Statystyki: Napisane przez Vitor Borba — 4 lis 2013, o 22:46
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