This class provides simplified I2C access to a Microchip 24LCxx Serial EEPROM device: - Rename the class (C2424 -> C24) - Add EraseMemoryArea method - Add DumpMemoryArea method only accessible in DEBUG mode - Add 'const' qualifier in parameters
Fork of 24LCxx_I2C by
24LCxx_I2C.h
- Committer:
- acesrobertm
- Date:
- 2018-04-25
- Revision:
- 4:650f3259bd4f
- Parent:
- 3:5df584fbabfe
- Child:
- 5:2f61885d8bc3
File content as of revision 4:650f3259bd4f:
/* mbed simplified access to Microchip 24LCxx Serial EEPROM devices (I2C) * Copyright (c) 2010-2012 ygarcia, MIT License * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software * and associated documentation files (the "Software"), to deal in the Software without restriction, * including without limitation the rights to use, copy, modify, merge, publish, distribute, * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #if !defined(__24LCXX_I2C_H__) #define __24LCXX_I2C_H__ #include "mbed.h" namespace _24LCXX_I2C { class C24LCXX_I2C { /** Device address input: A0, A1, A2 (Pins <1,3>). See DS21203K/DS21189D - Figure 5-1: Control Byte Format for address format details */ unsigned char _slaveAddress; /** WP state indicator (pin 7); true is write protected, false otherwise */ DigitalOut *_wp; /** An unique instance of I2C class */ I2C *_i2cInstance; public: /** Memory storage mode */ enum Mode { LittleEndian, //<! Little Endian mode: 0xA0B70708 is stored as 08: MSB and A0 LSB BigEndian //<! Little Endian mode: 0xA0B70708 is stored as AO: MSB and 08 LSB }; public: C24LCXX_I2C(const PinName p_sda, const PinName p_scl, const unsigned char p_address, const unsigned int p_frequency = 400000); virtual ~C24LCXX_I2C(); bool Write(const short p_address, const unsigned char p_byte); bool Write(const short p_address, const short p_short, const C24LCXX_I2C::Mode p_mode = BigEndian); bool Write(const short p_address, const int p_int, const C24LCXX_I2C::Mode p_mode = BigEndian); bool Read(const short p_address, unsigned char *p_value); bool Read(const short p_address, short *p_short, C24LCXX_I2C::Mode p_mode = BigEndian); bool Read(const short p_address, int *p_int, C24LCXX_I2C::Mode p_mode = BigEndian); private: }; // End of class C24LCXX_I2C } // End of namespace _24LCXX_I2C using namespace _24LCXX_I2C; #endif // __24LCXX_I2C_H__