Michel2/I2C_EEPROM
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update library.json, license, minor edits (#37)

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Rob Tillaart
2021-12-19 20:01:34 +01:00
committed by GitHub
parent 7eae2b7ba2
commit 1a6461a7dd
20 changed files with 169 additions and 118 deletions
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I2C_eeprom.cpp
+15 -12
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@@ -1,7 +1,7 @@
//
// FILE: I2C_eeprom.cpp
// AUTHOR: Rob Tillaart
// VERSION: 1.5.1
// VERSION: 1.5.2
// PURPOSE: Arduino Library for external I2C EEPROM 24LC256 et al.
// URL: https://github.com/RobTillaart/I2C_EEPROM.git
//
@@ -40,7 +40,8 @@
// 1.4.3 2021-05-05 adjust buffer size AVR / ESP +rename
// 1.5.0 2021-06-30 #28 fix addressing 24LC04/08/16
// 1.5.1 2021-10-14 function to add extra for write cycle (experimental)
// 1.5.2 2021-12-19 update library.json, license, minor edits
#include <I2C_eeprom.h>
@@ -62,7 +63,7 @@
#if defined(ESP32) || defined(ESP8266)
#define I2C_BUFFERSIZE 128
#else
#define I2C_BUFFERSIZE 30 // AVR, STM
#define I2C_BUFFERSIZE 30 // AVR, STM
#endif
@@ -184,7 +185,7 @@ int I2C_eeprom::updateBlock(const uint16_t memoryAddress, const uint8_t* buffer,
{
uint8_t buf[I2C_BUFFERSIZE];
uint8_t cnt = I2C_BUFFERSIZE;
if (cnt > len) cnt = len;
rv += _ReadBlock(addr, buf, cnt);
if (memcmp(buffer, buf, cnt) != 0)
@@ -275,9 +276,9 @@ uint8_t I2C_eeprom::getPageSize(uint32_t deviceSize)
// PRIVATE
//
// _pageBlock aligns buffer to page boundaries for writing.
// and to I2C buffer size
// returns 0 = OK otherwise error
// _pageBlock aligns buffer to page boundaries for writing.
// and to I2C buffer size
// returns 0 = OK otherwise error
int I2C_eeprom::_pageBlock(const uint16_t memoryAddress, const uint8_t* buffer, const uint16_t length, const bool incrBuffer)
{
uint16_t addr = memoryAddress;
@@ -301,7 +302,7 @@ int I2C_eeprom::_pageBlock(const uint16_t memoryAddress, const uint8_t* buffer,
}
// supports one and two bytes addresses
// supports one and two bytes addresses
void I2C_eeprom::_beginTransmission(const uint16_t memoryAddress)
{
if (this->_isAddressSizeTwoWords)
@@ -321,8 +322,8 @@ void I2C_eeprom::_beginTransmission(const uint16_t memoryAddress)
}
// pre: length <= this->_pageSize && length <= I2C_BUFFERSIZE;
// returns 0 = OK otherwise error
// pre: length <= this->_pageSize && length <= I2C_BUFFERSIZE;
// returns 0 = OK otherwise error
int I2C_eeprom::_WriteBlock(const uint16_t memoryAddress, const uint8_t* buffer, const uint8_t length)
{
_waitEEReady();
@@ -337,8 +338,8 @@ int I2C_eeprom::_WriteBlock(const uint16_t memoryAddress, const uint8_t* buffer,
}
// pre: buffer is large enough to hold length bytes
// returns bytes read
// pre: buffer is large enough to hold length bytes
// returns bytes read
uint8_t I2C_eeprom::_ReadBlock(const uint16_t memoryAddress, uint8_t* buffer, const uint8_t length)
{
_waitEEReady();
@@ -386,4 +387,6 @@ void I2C_eeprom::_waitEEReady()
return;
}
// -- END OF FILE --