// IIC port definition
#define PORT_I2C_OUT    P5OUT
#define PORT_I2C_DIR    P5DIR
#define PORT_I2C_SEL    P5SEL0
#define BIT_SDA         BIT2
#define BIT_SCL         BIT3

/* ------- Register names ------- */
#define XL345_DEVID           0x00
#define XL345_RESERVED1       0x01
#define XL345_THRESH_TAP      0x1d
#define XL345_OFSX            0x1e
#define XL345_OFSY            0x1f
#define XL345_OFSZ            0x20
#define XL345_DUR             0x21
#define XL345_LATENT          0x22
#define XL345_WINDOW          0x23
#define XL345_THRESH_ACT      0x24
#define XL345_THRESH_INACT    0x25
#define XL345_TIME_INACT      0x26
#define XL345_ACT_INACT_CTL   0x27
#define XL345_THRESH_FF       0x28
#define XL345_TIME_FF         0x29
#define XL345_TAP_AXES        0x2a
#define XL345_ACT_TAP_STATUS  0x2b
#define XL345_BW_RATE         0x2c
#define XL345_POWER_CTL       0x2d
#define XL345_INT_ENABLE      0x2e
#define XL345_INT_MAP         0x2f
#define XL345_INT_SOURCE      0x30
#define XL345_DATA_FORMAT     0x31
#define XL345_DATAX0          0x32
#define XL345_DATAX1          0x33
#define XL345_DATAY0          0x34
#define XL345_DATAY1          0x35
#define XL345_DATAZ0          0x36
#define XL345_DATAZ1          0x37
#define XL345_FIFO_CTL        0x38
#define XL345_FIFO_STATUS     0x39

signed char I2C_Read_Register(unsigned char reg_addr);
void I2C_Read_Continuous(unsigned char reg_addr, signed char* read_data, unsigned char data_length);
void I2C_Write_Register(unsigned char reg_addr, signed char value);
void Init_ADXL345();
void ADXL345_Update(signed int *data_XYZ);