[SOLVED] Am getting aerror as follows when i compile the program in avr

[thannara123]

#include <avr/io.h>
#include <inttypes.h>


#include "eeprom.h"


uint8_t EEPROMRead(uint16_t uiAddress)
{
    /* Wait for completion of previous write */
    while(EECR & (1<<EEWE));
    /* Set up address register */
    EEAR = uiAddress;
    /* Start eeprom read by writing EERE */
    EECR |= (1<<EERE);
    /* Return data from data register */
    return EEDR;
}


void EEPROMWrite(uint16_t uiAddress, uint8_t ucData)
{
    /* Wait for completion of previous write */
    while(EECR & (1<<EEWE));
    /* Set up address and data registers */
    EEAR = uiAddress;
    EEDR = ucData;
    /* Write logical one to EEMWE */
    EECR |= (1<<EEMWE);
    /* Start eeprom write by setting EEWE */
    EECR |= (1<<EEWE);
}

Build started 19.12.2012 at 09:25:40
avr-gcc.exe -mmcu=attiny2313 -Wall -gdwarf-2 -DF_CPU=1000000UL -O2 -fsigned-char -MD -MP -MT eeprom.o -MF dep/eeprom.o.d -c ../eeprom.c
../eeprom.c: In function 'EEPROMRead':
../eeprom.c:9: error: 'EEWE' undeclared (first use in this function)
../eeprom.c:9: error: (Each undeclared identifier is reported only once
../eeprom.c:9: error: for each function it appears in.)
../eeprom.c: In function 'EEPROMWrite':
../eeprom.c:21: error: 'EEWE' undeclared (first use in this function)
../eeprom.c:26: error: 'EEMWE' undeclared (first use in this function)
make: *** [eeprom.o] Error 1
Build failed with 5 errors and 0 warnings...



â​How can i rectify ?.

- - - Updated - - -

yes I got and changed as follows

#include <avr/io.h>
#include <inttypes.h>

#include "eeprom.h"

uint8_t EEPROMRead(uint16_t uiAddress)
{
	/* Wait for completion of previous write */
	while(EECR & (1<<EEPE));
	/* Set up address register */
	EEAR = uiAddress;
	/* Start eeprom read by writing EERE */
	EECR |= (1<<EERE);
	/* Return data from data register */
	return EEDR;
}

void EEPROMWrite(uint16_t uiAddress, uint8_t ucData)
{
	/* Wait for completion of previous write */
	while(EECR & (1<<EEPE));
	/* Set up address and data registers */
	EEAR = uiAddress;
	EEDR = ucData;
	/* Write logical one to EEMWE */
	EECR |= (1<<EEMPE);
	/* Start eeprom write by setting EEWE */
	EECR |= (1<<EEPE);
}

 

[bigdogguru]

yes I got and changed as follows

Does this indicate you've solved the issues with the code?

The error messages seem to indicate the various symbols are undefined in any of the included header files.


BigDog

 

[thannara123]

Yes sir ,

#include <avr/io.h>
#include <inttypes.h>

#include "eeprom.h"

uint8_t EEPROMRead(uint16_t uiAddress)
{
	/* Wait for completion of previous write */
	[COLOR="#FF0000"]while(EECR & (1<<EEPE));[/COLOR]      // changed 
	/* Set up address register */
	EEAR = uiAddress;
	/* Start eeprom read by writing EERE */
	EECR |= (1<<EERE);
	/* Return data from data register */
	return EEDR;
}

void EEPROMWrite(uint16_t uiAddress, uint8_t ucData)
{
	/* Wait for completion of previous write */
	while(EECR & (1<<EEPE));
	/* Set up address and data registers */
	EEAR = uiAddress;
	EEDR = ucData;
	/* Write logical one to EEMWE */
	EECR |= (1<<EEMPE);
	/* Start eeprom write by setting EEWE */
	[COLOR="#FF0000"][COLOR="#FF0000"]EECR |= (1<<EEPE);[/COLOR][/COLOR]
}