File content as of revision 0:e6d413e57654:

/*
  @file ds2782.h
  
  @brief DS2782 Stand-Alone Fuel Gauge IC
         Breakout I2C Library      

  @Author lukasz uszko(luszko@op.pl)

  Tested on FRDM-KL46Z and FRDM-KL25Z
  
  Copyright (c) 2014 lukasz uszko
  Released under the MIT License (see http://mbed.org/license/mit)

  Documentation regarding the MAX9611 might be found here: 
  http://www.maximintegrated.com/en/products/power/battery-management/DS2782.html
*/


#ifndef DS2782_H
#define DS2782_H

#include "mbed.h"

#define DS2782_I2C_ADDRESS 0x34<<1  



 


class DS2782{
      
      
 /**********private members and methods********************************/       
 private: 
     
  typedef enum {
    STATUS=0x01,     /*STATUS - Status Register*/
    RAAC_MSB_REG,        /*RAAC - Remaining Active Absolute Capacity MSB*/
    RAAC_LSB_REG,       
    RSAC_MSB_REG,        /*RSAC - Remaining Standby Absolute Capacity MSB*/
    RSAC_LSB_REG,     
    RARC_REG,            /*RARC - Remaining Active Relative Capacity*/
    RSRC_REG,            /*RSRC - Remaining Standby Relative Capacity*/
    IAVG_MSB_REG,        /*IAVG - Average Current Register MSB*/
    IAVG_LSB_REG,     
    TEMP_MSB_REG,        /*TEMP - Temperature Register MSB*/
    TEMP_LSB_REG, 
    VOLT_MSB_REG,        /*VOLT - Voltage Register MSB*/
    VOLT_LSB_REG,      
    CURRENT_MSB_REG,     /*CURRENT - Current Register MSB*/
    CURRENT_LSB_REG,    
    ACR_MSB_REG,         /*ACR - Accumulated Current Register MSB*/
    ACR_LSB_REG,       
    ACRL_MSB_REG,        /*Low Accumulated Current Register MSB*/
    ACRL_LSB_REG,     
    AS_REG,              /*AS - Age Scalar*/
    SFR_REG,             /*SFR - Special Feature Register*/
    FULL_MSB_REG,        /*FULL - Full Capacity MSB*/
    FULL_LSB_REG,       
    AE_MSB_REG,          /*AE - Active Empty MSB*/
    AE_LSB_REG,    
    SE_MSB_REG,          /*SE - Standby Empty MSB*/
    SE_LSB_REG,
    EEPROM_REG= 0x1F,         /*EEPROM - EEPROM Register */
    USR_EEPROM_REG= 0x20,     /*User EEPROM, Lockable, Block 0 [20 to 2F]*/
    ADD_USR_EEPROM_REG=0x30,  /*Additional User EEPROM, Lockable, Block 0 [30 to 37]*/
    PARAM_EEPROM_REG=0x60,    /*Parameter EEPROM, Lockable, Block 1 [60 to 7F]*/
    UNIQUE_ID_REG =0xF0,      /*Unique ID [F0 to F7]*/
    FUNC_COMMAND_REG= 0xFE    /*Function Command Register */
         
 }RegAddr;
 
    /** Write data to the given register
     *  
     * @returns
     *   1 on success,
     *   0 on error
     */  
    bool write(uint8_t regAddress, uint8_t* data,int dataLength);
  
    /** Write data to the given register
     * @param register Address
     * @param data to read
     * @param length of data to read 
     * @returns
     *   1 on success,
     *   0 on error
     */  
    bool read(uint8_t regAddress, uint8_t* data,int length);
    
   /** merge two bytes in one word
    * @param 1st byte
    * @param 2nd byte
    * @returns 16 bit word
    */
    inline uint16_t get16BitData(uint8_t msbByte,uint8_t lsbByte){
        uint16_t data16Bit= (msbByte<<8)|(lsbByte);
        return data16Bit; 
    }
        
    I2C mI2c;   
    uint8_t mI2cAddr;
   
    
    /**********protected members and methods********************************/
    protected:
    float mTemperature; 
    float mCurrent;  
    float mVoltage;
   
   /**********public methods********************************/
    public:

    /** Create an SI7020 instance
     * @param sda pin 
     * @param scl pin 
     * @param address: I2C slave address 
     */
     DS2782(PinName sda, PinName scl,int i2cFrequencyHz=100000,uint8_t address = DS2782_I2C_ADDRESS); 


    /** Initialization: set member values and configuration registers, ought to be invoked in the body of constructor 
     * @returns
     *    true on success,
     *    false on error
     */
    bool initDS2782(void);
    
    /** Read temperature from the sensor.
     * @param none
     * @returns
     *   1 on success,
     *   0 on error
     */ 
    bool readTemperature(void);   
    bool readCurrent(void);
    bool readVoltage(void);
    
    // setters-getters
    float getTemperature(void);
    float getCurrent(void);
    float getVoltage(void);
    
    float readTest(void);
};

#endif