thannara123
Advanced Member level 5
Code:
#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
Code:
#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);
}