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Jason2866 2020-10-25 15:19:38 +01:00
parent 8033920f45
commit a82ccdc2cd
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lib/AT24C256_512/Eeprom24C128_256.cpp → lib_basic/AT24C256_512/Eeprom24C128_256.cpp
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lib/AT24C256_512/Eeprom24C128_256.h → lib_basic/AT24C256_512/Eeprom24C128_256.h
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lib/AT24C256_512/Eeprom24C512.cpp → lib_basic/AT24C256_512/Eeprom24C512.cpp
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lib/AT24C256_512/Eeprom24C512.h → lib_basic/AT24C256_512/Eeprom24C512.h
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lib/AT24C256_512/library.properties → lib_basic/AT24C256_512/library.properties
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334
lib_div/AT24C256/Eeprom24C128_256.cpp
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/**************************************************************************//**
* \brief EEPROM 24C128 / 24C256 library for Arduino
* \author Copyright (C) 2012 Julien Le Sech - www.idreammicro.com
* \version 1.0
* \date 20120203
*
* This file is part of the EEPROM 24C128 / 24C256 library for Arduino.
*
* 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 3 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 program. If not, see http://www.gnu.org/licenses/
******************************************************************************/
/**************************************************************************//**
* \file Eeprom24C128_256.cpp
******************************************************************************/
/******************************************************************************
* Header file inclusions.
******************************************************************************/
#include <Arduino.h>
#include <Wire.h>
#include <Eeprom24C128_256.h>
/******************************************************************************
* Private macro definitions.
******************************************************************************/
/**************************************************************************//**
* \def EEPROM__PAGE_SIZE
* \brief Size of a page in EEPROM memory.
* This size is given by EEPROM memory datasheet.
******************************************************************************/
#define EEPROM__PAGE_SIZE 64
/**************************************************************************//**
* \def EEPROM__RD_BUFFER_SIZE
* \brief Size of input TWI buffer.
* This size is equal to BUFFER_LENGTH defined in Wire library (32 bytes).
******************************************************************************/
#define xBUFFER_LENGTH 24
#define EEPROM__RD_BUFFER_SIZE xBUFFER_LENGTH
/**************************************************************************//**
* \def EEPROM__WR_BUFFER_SIZE
* \brief Size of output TWI buffer.
* This size is equal to BUFFER_LENGTH - 2 bytes reserved for address.
******************************************************************************/
#define EEPROM__WR_BUFFER_SIZE (xBUFFER_LENGTH - 2)
/******************************************************************************
* Public method definitions.
******************************************************************************/
/**************************************************************************//**
* \fn Eeprom24C128_256::Eeprom24C128_256(byte deviceAddress)
*
* \brief Constructor.
*
* \param deviceAddress EEPROM address on TWI bus.
******************************************************************************/
Eeprom24C128_256::Eeprom24C128_256
(
byte deviceAddress
){
m_deviceAddress = deviceAddress;
}
/**************************************************************************//**
* \fn void Eeprom24C128_256::initialize()
*
* \brief Initialize library and TWI bus.
*
* If several devices are connected to TWI bus, this method mustn't be
* called. TWI bus must be initialized out of this library using
* Wire.begin() method.
******************************************************************************/
void
Eeprom24C128_256::initialize()
{
Wire.begin();
}
/**************************************************************************//**
* \fn void Eeprom24C128_256::writeByte(
* word address,
* byte data)
*
* \brief Write a byte in EEPROM memory.
*
* \remarks A delay of 10 ms is required after write cycle.
*
* \param address Address.
* \param data Byte to write.
******************************************************************************/
void
Eeprom24C128_256::writeByte
(
word address,
byte data
){
Wire.beginTransmission(m_deviceAddress);
Wire.write(address >> 8);
Wire.write(address & 0xFF);
Wire.write(data);
Wire.endTransmission();
}
/**************************************************************************//**
* \fn void Eeprom24C128_256::writeBytes(
* word address,
* word length,
* byte* p_data)
*
* \brief Write bytes in EEPROM memory.
*
* \param address Start address.
* \param length Number of bytes to write.
* \param[in] p_data Bytes to write.
******************************************************************************/
void
Eeprom24C128_256::writeBytes
(
word address,
word length,
byte* p_data
){
// Write first page if not aligned.
byte notAlignedLength = 0;
byte pageOffset = address % EEPROM__PAGE_SIZE;
if (pageOffset > 0)
{
notAlignedLength = EEPROM__PAGE_SIZE - pageOffset;
if (length < notAlignedLength)
{
notAlignedLength = length;
}
writePage(address, notAlignedLength, p_data);
length -= notAlignedLength;
}
if (length > 0)
{
address += notAlignedLength;
p_data += notAlignedLength;
// Write complete and aligned pages.
word pageCount = length / EEPROM__PAGE_SIZE;
for (word i = 0; i < pageCount; i++)
{
writePage(address, EEPROM__PAGE_SIZE, p_data);
address += EEPROM__PAGE_SIZE;
p_data += EEPROM__PAGE_SIZE;
length -= EEPROM__PAGE_SIZE;
}
if (length > 0)
{
// Write remaining uncomplete page.
writePage(address, length, p_data);
}
}
}
/**************************************************************************//**
* \fn byte Eeprom24C128_256::readByte(word address)
*
* \brief Read a byte in EEPROM memory.
*
* \param address Address.
*
* \return Read byte.
******************************************************************************/
byte
Eeprom24C128_256::readByte
(
word address
){
Wire.beginTransmission(m_deviceAddress);
Wire.write(address >> 8);
Wire.write(address & 0xFF);
Wire.endTransmission();
Wire.requestFrom(m_deviceAddress, (byte)1);
byte data = 0;
if (Wire.available())
{
data = Wire.read();
}
return data;
}
/**************************************************************************//**
* \fn void Eeprom24C128_256::readBytes(
* word address,
* word length,
* byte* p_data)
*
* \brief Read bytes in EEPROM memory.
*
* \param address Start address.
* \param length Number of bytes to read.
* \patam[in] p_data Byte array to fill with read bytes.
******************************************************************************/
void
Eeprom24C128_256::readBytes
(
word address,
word length,
byte* p_data
){
byte bufferCount = length / EEPROM__RD_BUFFER_SIZE;
for (byte i = 0; i < bufferCount; i++)
{
word offset = i * EEPROM__RD_BUFFER_SIZE;
readBuffer(address + offset, EEPROM__RD_BUFFER_SIZE, p_data + offset);
}
byte remainingBytes = length % EEPROM__RD_BUFFER_SIZE;
word offset = length - remainingBytes;
readBuffer(address + offset, remainingBytes, p_data + offset);
}
/******************************************************************************
* Private method definitions.
******************************************************************************/
/**************************************************************************//**
* \fn void Eeprom24C128_256::writePage(
* word address,
* byte length,
* byte* p_data)
*
* \brief Write page in EEPROM memory.
*
* \param address Start address.
* \param length Number of bytes (EEPROM__PAGE_SIZE bytes max).
* \param[in] p_data Data.
******************************************************************************/
void
Eeprom24C128_256::writePage
(
word address,
byte length,
byte* p_data
){
// Write complete buffers.
byte bufferCount = length / EEPROM__WR_BUFFER_SIZE;
for (byte i = 0; i < bufferCount; i++)
{
byte offset = i * EEPROM__WR_BUFFER_SIZE;
writeBuffer(address + offset, EEPROM__WR_BUFFER_SIZE, p_data + offset);
}
// Write remaining bytes.
byte remainingBytes = length % EEPROM__WR_BUFFER_SIZE;
byte offset = length - remainingBytes;
writeBuffer(address + offset, remainingBytes, p_data + offset);
}
/**************************************************************************//**
* \fn void Eeprom24C128_256::writeBuffer(
* word address,
* byte length,
* byte* p_data)
*
* \brief Write bytes into memory.
*
* \param address Start address.
* \param length Number of bytes (EEPROM__WR_BUFFER_SIZE bytes max).
* \param[in] p_data Data.
******************************************************************************/
void
Eeprom24C128_256::writeBuffer
(
word address,
byte length,
byte* p_data
){
Wire.beginTransmission(m_deviceAddress);
Wire.write(address >> 8);
Wire.write(address & 0xFF);
for (byte i = 0; i < length; i++)
{
Wire.write(p_data[i]);
}
Wire.endTransmission();
// Write cycle time (tWR). See EEPROM memory datasheet for more details.
delay(10);
}
/**************************************************************************//**
* \fn void Eeprom24C128_256::readBuffer(
* word address,
* byte length,
* byte* p_data)
*
* \brief Read bytes in memory.
*
* \param address Start address.
* \param length Number of bytes (EEPROM__RD_BUFFER_SIZE bytes max).
* \param[in] p_data Buffer to fill with read bytes.
******************************************************************************/
void
Eeprom24C128_256::readBuffer
(
word address,
byte length,
byte* p_data
){
Wire.beginTransmission(m_deviceAddress);
Wire.write(address >> 8);
Wire.write(address & 0xFF);
Wire.endTransmission();
Wire.requestFrom(m_deviceAddress, length);
for (byte i = 0; i < length; i++)
{
if (Wire.available())
{
p_data[i] = Wire.read();
}
}
}

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lib_div/AT24C256/Eeprom24C128_256.h
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/**************************************************************************//**
* \brief EEPROM 24C128 / 24C256 library for Arduino
* \author Copyright (C) 2012 Julien Le Sech - www.idreammicro.com
* \version 1.0
* \date 20120203
*
* This file is part of the EEPROM 24C128 / 24C256 library for Arduino.
*
* 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 3 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 program. If not, see http://www.gnu.org/licenses/
******************************************************************************/
/**************************************************************************//**
* \headerfile Eeprom24C128_256.h
******************************************************************************/
#ifndef Eeprom24C128_256_h
#define Eeprom24C128_256_h
/******************************************************************************
* Header file inclusion.
******************************************************************************/
#include <Arduino.h>
/**************************************************************************//**
* \class Eeprom24C128_256
*
* \brief EEPROM 24C128 / 24C256 memory driver.
*
* This driver is mainly designed for 24C128 and 24C256 EEPROM memories. It's
* also suitable for 24C512 memories.
******************************************************************************/
class Eeprom24C128_256
{
public:
/******************************************************************//**
* \fn Eeprom24C128_256(byte deviceAddress)
*
* \brief Constructor.
*
* \param deviceAddress EEPROM address on TWI bus.
**********************************************************************/
Eeprom24C128_256
(
byte deviceAddress
);
/******************************************************************//**
* \fn void initialize()
*
* \brief Initialize library abnd TWI bus.
*
* If several devices are connected to TWI bus, this method mustn't be
* called. TWI bus must be initialized out of this library using
* Wire.begin() method.
**********************************************************************/
void
initialize();
/******************************************************************//**
* \fn void writeByte(
* word address,
* byte data)
*
* \brief Write a byte in EEPROM memory.
*
* \remarks A delay of 10 ms is required after write cycle.
*
* \param address Address.
* \param data Byte to write.
**********************************************************************/
void
writeByte
(
word address,
byte data
);
/******************************************************************//**
* \fn void writeBytes(
* word address,
* word length,
* byte* p_data)
*
* \brief Write bytes in EEPROM memory.
*
* \param address Start address.
* \param length Number of bytes to write.
* \param[in] p_data Bytes to write.
**********************************************************************/
void
writeBytes
(
word address,
word length,
byte* p_data
);
/******************************************************************//**
* \fn byte readByte(word address)
*
* \brief Read a byte in EEPROM memory.
*
* \param address Address.
*
* \return Read byte.
**********************************************************************/
byte
readByte
(
word address
);
/******************************************************************//**
* \fn void readBytes(
* word address,
* word length,
* byte* p_data)
*
* \brief Read bytes in EEPROM memory.
*
* \param address Start address.
* \param length Number of bytes to read.
* \patam[in] p_data Byte array to fill with read bytes.
**********************************************************************/
void
readBytes
(
word address,
word length,
byte* p_buffer
);
private:
byte m_deviceAddress;
/******************************************************************//**
* \fn void writePage(
* word address,
* byte length,
* byte* p_data)
*
* \brief Write page in EEPROM memory.
*
* \param address Start address.
* \param length Number of bytes (64 bytes max).
* \param[in] p_data Data.
**********************************************************************/
void
writePage
(
word address,
byte length,
byte* p_data
);
/******************************************************************//**
* \fn void writeBuffer(
* word address,
* byte length,
* byte* p_data)
*
* \brief Write bytes into memory.
*
* \param address Start address.
* \param length Number of bytes (30 bytes max).
* \param[in] p_date Data.
**********************************************************************/
void
writeBuffer
(
word address,
byte length,
byte* p_data
);
/******************************************************************//**
* \fn void readBuffer(
* word address,
* byte length,
* byte* p_data)
*
* \brief Read bytes in memory.
*
* \param address Start address.
* \param length Number of bytes to read (32 bytes max).
* \param[in] p_data Buffer to fill with read bytes.
**********************************************************************/
void
readBuffer
(
word address,
byte length,
byte* p_data
);
};
#endif // Eeprom24C128_256_h

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lib_div/AT24C256/library.properties
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name=EEPROM 24C128
version=
author=Julien Le Sech
maintainer=Julien Le Sech - www.idreammicro.com
sentence=EEPROM 24C128 / 24C256 memory driver.
paragraph=EEPROM 24C128 / 24C256 memory driver.
category=
url=
architectures=*