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EepromUtility.h
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EepromUtility.h
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/*******************************************************************************
EepromUtility.h Helper functions for using EEPROM
Copyright(C) 2016 Howard James May
This file is part of the SweetMaker SDK
The SweetMaker SDK is free software: you can redistribute it and / or
modify it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
The SweetMaker SDK 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program.If not, see <http://www.gnu.org/licenses/>.
Contact me at sweet.maker@outlook.com
********************************************************************************
Release Date Change Description
--------|-------------|--------------------------------------------------------|
1 26-Oct-2016 Initial release
*******************************************************************************/
#ifndef __EEPROM_UTILITY_H__
#define __EEPROM_UTILITY_H__
#include <stdint.h>
namespace SweetMaker
{
class EepromUtility
{
public:
EepromUtility();
class EepromReader {
public:
EepromReader(uint16_t offset, uint16_t len);
uint8_t readU8(void);
uint8_t readU8(uint16_t offset);
uint16_t readU16(void);
uint16_t readU16(uint16_t offset);
uint32_t readU32(void);
uint32_t readU32(uint32_t offset);
int8_t readS8(void);
int8_t readS8(uint16_t offset);
int16_t readS16(void);
int16_t readS16(uint16_t offset);
int32_t readS32(void);
int32_t readS32(uint32_t offset);
private:
uint16_t bufStart;
uint16_t bufLen;
uint16_t nextByte;
};
class EepromWriter {
public:
EepromWriter(uint16_t offset, uint16_t len);
~EepromWriter();
int writeU8(uint8_t data);
int writeU16(uint16_t data);
int writeU32(uint32_t data);
int writeS8(int8_t data);
int writeS16(int16_t data);
int writeS32(int32_t data);
private:
uint16_t bufStart;
uint16_t bufLen;
uint16_t nextByte;
};
static uint16_t calculateCrc(uint16_t const start, uint16_t const nBytes);
static const uint16_t maxEepromLen=1024;
};
};
#endif