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EEPROMex.h
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EEPROMex.h
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/*
EEPROMEx.h - Extended EEPROM library
Copyright (c) 2012 Thijs Elenbaas. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef EEPROMEX_h
#define EEPROMEX_h
#if ARDUINO >= 100
#include <Arduino.h>
#else
#include <WProgram.h>
#endif
#include <inttypes.h>
#include <avr/eeprom.h>
#define EEPROMSize1k 1024
#define EEPROMSize2k 2048
#define EEPROMSize4k 4096
#define EEPROMSize8k 8192
#define EEPROMSize16k 16384
#define EEPROMSize32k 32768
#define EEPROMSize64k 65536
#define EEPROMSizeATmega168 512
#define EEPROMSizeATmega328 1024
#define EEPROMSizeATmega1280 4096
#define EEPROMSizeATmega32u4 1024
#define EEPROMSizeAT90USB1286 4096
#define EEPROMSizeMK20DX128 2048
#define EEPROMSizeMK20DX256 2048
#define EEPROMSizeATSAMD21G18 16384
#define EEPROMSizeATTINY202 64
#define EEPROMSizeATTINY402 128
#define EEPROMSizeATTINY204 64
#define EEPROMSizeATTINY404 128
#define EEPROMSizeATTINY804 128
#define EEPROMSizeATTINY1604 256
#define EEPROMSizeATTINY406 128
#define EEPROMSizeATTINY806 128
#define EEPROMSizeATTINY1606 256
#define EEPROMSizeATTINY807 128
#define EEPROMSizeATTINY1607 256
#define EEPROMSizeATTINY808 256
#define EEPROMSizeATTINY809 256
#define EEPROMSizeATTINY1608 256
#define EEPROMSizeATTINY1609 256
#define EEPROMSizeATTINY3208 256
#define EEPROMSizeATTINY3209 256
#define EEPROMSizeATTINY212 64
#define EEPROMSizeATTINY412 128
#define EEPROMSizeATTINY214 64
#define EEPROMSizeATTINY414 128
#define EEPROMSizeATTINY814 128
#define EEPROMSizeATTINY416 128
#define EEPROMSizeATTINY816 128
#define EEPROMSizeATTINY417 128
#define EEPROMSizeATTINY817 128
#define EEPROMSizeATTINY1614 256
#define EEPROMSizeATTINY1616 256
#define EEPROMSizeATTINY1617 256
#define EEPROMSizeATTINY3216 256
#define EEPROMSizeATTINY3217 256
#define EEPROMSizeATTINY424 128
#define EEPROMSizeATTINY426 128
#define EEPROMSizeATTINY427 128
#define EEPROMSizeATTINY824 128
#define EEPROMSizeATTINY826 128
#define EEPROMSizeATTINY827 128
#define EEPROMSizeATTINY1624 256
#define EEPROMSizeATTINY1626 256
#define EEPROMSizeATTINY1627 256
#define EEPROMSizeATTINY3224 256
#define EEPROMSizeATTINY3226 256
#define EEPROMSizeATTINY3227 256
#define EEPROMSizeATMEGA808 256
#define EEPROMSizeATMEGA809 256
#define EEPROMSizeATMEGA1608 256
#define EEPROMSizeATMEGA1609 256
#define EEPROMSizeATMEGA3208 256
#define EEPROMSizeATMEGA3209 256
#define EEPROMSizeATMEGA4808 256
#define EEPROMSizeATMEGA4809 256
#define EEPROMSizeUno EEPROMSizeATmega328
#define EEPROMSizeUnoSMD EEPROMSizeATmega328
#define EEPROMSizeLilypad EEPROMSizeATmega328
#define EEPROMSizeDuemilanove EEPROMSizeATmega328
#define EEPROMSizePro EEPROMSizeATmega328
#define EEPROMSizeFio EEPROMSizeATmega328
#define EEPROMSizeMega EEPROMSizeATmega1280
#define EEPROMSizeDiecimila EEPROMSizeATmega168
#define EEPROMSizeNano EEPROMSizeATmega168
#define EEPROMSizeTeensy2 EEPROMSizeATmega32u4
#define EEPROMSizeLeonardo EEPROMSizeATmega32u4
#define EEPROMSizeMicro EEPROMSizeATmega32u4
#define EEPROMSizeEsplora EEPROMSizeATmega32u4
#define EEPROMSizeYun EEPROMSizeATmega32u4
#define EEPROMSizeTre EEPROMSizeATmega32u4
#define EEPROMSizeZero EEPROMSizeATSAMD21G18
#define EEPROMSizeTeensy2pp EEPROMSizeAT90USB1286
#define EEPROMSizeTeensy3 EEPROMSizeMK20DX128
#define EEPROMSizeTeensy31 EEPROMSizeMK20DX256
class EEPROMClassEx
{
public:
EEPROMClassEx();
bool isReady();
int writtenBytes();
void setMemPool(int base, int memSize);
void setMaxAllowedWrites(int allowedWrites);
int getAddress(int noOfBytes);
uint8_t read(int);
bool readBit(int, byte);
uint8_t readByte(int);
uint16_t readInt(int);
uint32_t readLong(int);
float readFloat(int);
double readDouble(int);
bool write(int, uint8_t);
bool writeBit(int , uint8_t, bool);
bool writeByte(int, uint8_t);
bool writeInt(int, uint16_t);
bool writeLong(int, uint32_t);
bool writeFloat(int, float);
bool writeDouble(int, double);
bool update(int, uint8_t);
bool updateBit(int , uint8_t, bool);
bool updateByte(int, uint8_t);
bool updateInt(int, uint16_t);
bool updateLong(int, uint32_t);
bool updateFloat(int, float);
bool updateDouble(int, double);
// Use template for other data formats
/**
* Template function to read multiple items of any type of variable, such as structs
*/
template <class T> int readBlock(int address, const T value[], int items)
{
unsigned int i;
for (i = 0; i < (unsigned int)items; i++)
readBlock<T>(address+(i*sizeof(T)),value[i]);
return i;
}
/**
* Template function to read any type of variable, such as structs
*/
template <class T> int readBlock(int address, const T& value)
{
eeprom_read_block((void*)&value, (const void*)address, sizeof(value));
return sizeof(value);
}
/**
* Template function to write multiple items of any type of variable, such as structs
*/
template <class T> int writeBlock(int address, const T value[], int items)
{
if (!isWriteOk(address+items*sizeof(T))) return 0;
unsigned int i;
for (i = 0; i < (unsigned int)items; i++)
writeBlock<T>(address+(i*sizeof(T)),value[i]);
return i;
}
/**
* Template function to write any type of variable, such as structs
*/
template <class T> int writeBlock(int address, const T& value)
{
if (!isWriteOk(address+sizeof(value))) return 0;
eeprom_write_block((void*)&value, (void*)address, sizeof(value));
return sizeof(value);
}
/**
* Template function to update multiple items of any type of variable, such as structs
* The EEPROM will only be overwritten if different. This will reduce wear.
*/
template <class T> int updateBlock(int address, const T value[], int items)
{
int writeCount=0;
if (!isWriteOk(address+items*sizeof(T))) return 0;
unsigned int i;
for (i = 0; i < (unsigned int)items; i++)
writeCount+= updateBlock<T>(address+(i*sizeof(T)),value[i]);
return writeCount;
}
/**
* Template function to update any type of variable, such as structs
* The EEPROM will only be overwritten if different. This will reduce wear.
*/
template <class T> int updateBlock(int address, const T& value)
{
int writeCount=0;
if (!isWriteOk(address+sizeof(value))) return 0;
const byte* bytePointer = (const byte*)(const void*)&value;
for (unsigned int i = 0; i < (unsigned int)sizeof(value); i++) {
if (read(address)!=*bytePointer) {
write(address, *bytePointer);
writeCount++;
}
address++;
bytePointer++;
}
return writeCount;
}
private:
//Private variables
static int _base;
static int _memSize;
static int _nextAvailableaddress;
static int _writeCounts;
int _allowedWrites;
bool checkWrite(int base,int noOfBytes);
bool isWriteOk(int address);
bool isReadOk(int address);
};
extern EEPROMClassEx EEPROM;
#endif