/**
     * @fn begin
     * @brief set the i2c addr and init the i2c.
     * @return returns the initialization status
     * @retval true Initialization succeeded
     * @retval false Initialization  failed
     */
    bool begin();

    /**
     * @fn setGyroRange
     * @brief set gyroscope angular rate range and resolution.
     * @param bits 
     * @n       eGyroRange_2000DPS     Gyroscope sensitivity at 2000dps
     * @n       eGyroRange_1000DPS     Gyroscope sensitivity at 1000dps
     * @n       eGyroRange_500DPS      Gyroscope sensitivity at 500dps
     * @n       eGyroRange_250DPS      Gyroscope sensitivity at 250dps
     * @n       eGyroRange_125DPS      Gyroscope sensitivity at 125dps
     */
    void setGyroRange(eGyroRange_t bits);

    /**
     * @fn setAccelRange
     * @brief allow the selection of the accelerometer g-range.
     * @param bits 
     * @n       eAccelRange_2G        Macro for mg per LSB at +/- 2g sensitivity (1 LSB = 0.000061035mg) 
     * @n       eAccelRange_4G        Macro for mg per LSB at +/- 4g sensitivity (1 LSB = 0.000122070mg) 
     * @n       eAccelRange_8G        Macro for mg per LSB at +/- 8g sensitivity (1 LSB = 0.000244141mg) 
     * @n       eAccelRange_16G       Macro for mg per LSB at +/- 16g sensitivity (1 LSB = 0.000488281mg)
     */
    void setAccelRange(eAccelRange_t bits);
    
    /**
     * @fn getAllData
     * @brief get the magn, gyro and accel data 
     * @param magn  to store the magn data
     * @param gyro  to store the gyro data
     * @param accel  to store the accel data
     */
    void getAllData( sBmx160SensorData_t *magn,  sBmx160SensorData_t *gyro,  sBmx160SensorData_t *accel);

    /**
     * @fn softReset
     * @brief reset bmx160 hardware
     * @return returns the reset status
     * @retval true reset succeeded
     * @retval false reset  failed
     */
    bool softReset();

    /**
     * @fn setLowPower
     * @brief disabled the the magn, gyro sensor to reduce power consumption
     */
    void setLowPower();

    /**
     * @fn wakeUp
     * @brief enabled the the magn, gyro sensor
     */
    void wakeUp();