AVR Freaks

hi david,

    Good day. Yes i added path of that library, but still i have the same error :"Error    1    UART_routines.h: No such file or directory"

hi Johan,

UART_routines.c  -  C:\Documents and Settings\Dev5\Desktop\SASI\AtmelStudio_6.2\serial1

 UART_routines.h  -  C:\Documents and Settings\Dev5\Desktop\SASI\AtmelStudio_6.2\serial1

 serial1.atsln  -  C:\Documents and Settings\Dev5\Desktop\SASI\AtmelStudio_6.2\serial1

 serial1.c   -  C:\Documents and Settings\Dev5\Desktop\SASI\AtmelStudio_6.2\serial1\serial1\serial1.c

hi clawson,

 #include "C:\Documents and Settings\Dev5\Desktop\SASI\AtmelStudio_6.2\serial1\UART_routines.h"

or by adding path in Toolchain->directories and then i used #include <UART_routines.h>

if i added like any one of the above command, the errors are

Error    1    cannot find -lUART_routines.c        1    1    serial1

Error    2    cannot find -lUART_routines.h        1    1    serial1

Error    3    ld returned 1 exit status    collect2.exe    0    0    serial1

hi david,

 As per your point i added UART_routines.c (c file) and UART_routines.h(header file) in project directory file-new-c file(for .c) , file-new-header file(for .h). below one is my code serial1.c. And now the errors are:

Error    2    ld returned 1 exit status    collect2.exe    0    0    serial1

Error    1    undefined reference to `transmitString'   

//UART_routines.c

//**************************************************************
//******** FUNCTIONS FOR SERIAL COMMUNICATION USING UART *******
//**************************************************************
//Controller:	ATmega128 (Crystal: 14.7456Mhz)
//Compiler:		AtmelStudio 6.2
//********************************************************

#include <avr/io.h>
#include <avr/pgmspace.h>
#include "UART_routines.h"


//**************************************************
//Function initialize UART1
//desired baud rate: 9600
//**************************************************
void uart1_init(void)
{
    UCSR1A=0x00;
    UCSR1B=0x18;
    UCSR1C=0x06;
    UBRR1H=0x00;
    UBRR1L=0x5F;
}
//**************************************************
//Function to receive a single byte
//*************************************************
unsigned char receiveByte( void )
{
	unsigned char data, status;

	while(!(UCSR1A & (1<<RXC1))); 	// Wait for incomming data

	status = UCSR1A;
	data = UDR1;

	return(data);
}

//***************************************************
//Function to transmit a single byte
//***************************************************
void transmitByte( unsigned char data )
{
	while ( !(UCSR1A & (1<<UDRE1)) )
		; 			                /* Wait for empty transmit buffer */
	UDR1 = data; 			        /* Start transmition */
}

//***************************************************
//Function to transmit a string in Flash
//***************************************************
void transmitString_F(char* string)
{
  while (pgm_read_byte(&(*string)))
   transmitByte(pgm_read_byte(&(*string++)));
}

//***************************************************
//Function to transmit a string in RAM
//***************************************************
void transmitString(char* string)
{
    while (*string)
		transmitByte(*string++);
}

//UART_routines.h

// **************************************************************
// ***  UART_ROUTINES HEADER FILE ********
// **************************************************************

#define TX_NEWLINE		{transmitByte(0x0d); transmitByte(0x0a);}

void uart1_init(void);
unsigned char receiveByte(void);
void transmitByte(unsigned char);
void transmitString_F(char*);
void transmitString(char*);

//serial1.c

#define F_CPU 14745600UL

#include <avr/io.h>
#include <avr/pgmspace.h>
#include <util/delay.h> 
//#include "UART_routines.h"
#include "C:\Documents and Settings\Dev5\Desktop\SASI\AtmelStudio_6.2\serial1\UART_routines.h"

int main(void)
{
    DDRF = 0x7E;
	
	while(1)
    {
        //TODO:: Please write your application code 
		
		transmitString("Start Atmel Studio 6.2 Serial comm");
		
		PORTF = 0x7E;
		_delay_ms(1000);
		
		PORTF = 0x00;
		_delay_ms(1000);
    }
}

hi clawson,

  here by attach serial1 project zip file. In this i am getting errors. 

Please help me to find out errors.

hi david,

  how to use a single "usart_routines.c" with several different projects.

Hi David & Clawson,

  Good day. As per your guide i followed your points. and now i got a diamond way. and  i  used this  single "usart_routines.c" with several different projects. Thanks  both of you great help. Today i learned it better. Thanks alot.

hi deena,

   Thanks for your valuable points. I will follow your steps. Tomorrow i will do it.