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#include "EEPROM_I2C.h"
#include <Wire.h>
#if ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
void EEPROM_I2C::begin(){
Wire.begin();
}
void EEPROM_I2C::writeByte(unsigned int eeaddress, byte data){
int rdata = data;
this->_beginTransmission(eeaddress);
Wire.write(rdata);
this->_endTransmission();
}
byte EEPROM_I2C::readByte(unsigned int eeaddress){
int rdata;
this->_beginTransmission(eeaddress);
this->_endTransmission();
Wire.requestFrom(DEVICEADDRESS,1);
if (Wire.available()) rdata = Wire.read();
return rdata;
}
void EEPROM_I2C::writePage(unsigned int eeaddress, byte* data, byte length ){
this->_beginTransmission(eeaddress);
byte c;
for ( c = 0; c < length; c++)
Wire.write(data[c]);
this->_endTransmission();
delay(10); // need some delay
}
void EEPROM_I2C::readBuffer(unsigned int eeaddress, byte *buffer, int length ){
this->_beginTransmission(eeaddress);
this->_endTransmission();
Wire.requestFrom(DEVICEADDRESS,length);
for ( int c = 0; c < length; c++ )
if (Wire.available()) buffer[c] = Wire.read();
}
void EEPROM_I2C::_beginTransmission(unsigned int eeaddress){
Wire.beginTransmission(DEVICEADDRESS);
Wire.write((eeaddress >> 8)); // Address High Byte
Wire.write((eeaddress & 0xFF)); // Address Low Byte
}
void EEPROM_I2C::_endTransmission(){
Wire.endTransmission();
}
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