| #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); |
| } |
|
|
| 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)); |
| Wire.write((eeaddress & 0xFF)); |
| } |
| void EEPROM_I2C::_endTransmission(){ |
| Wire.endTransmission(); |
| } |
