Issue when compare 2 bmi160 data

static void Spi_sensor_Sensor_init( void ) {

    /* You may assign a chip select identifier to be handled later */
    s_spi_bmi160_sensor.id = 0 ;
    s_spi_bmi160_sensor.interface = BMI160_SPI_INTF ;
    s_spi_bmi160_sensor.read = Spi_read_transfer ;              //Spi_read_transfer or spi_read
    s_spi_bmi160_sensor.write = Spi_write_transfer ;    //Spi_write_transfer or spi_write
    s_spi_bmi160_sensor.delay_ms = Spi_delay_ms ;
		
    int8_t rslt = BMI160_OK ;
    rslt = bmi160_init( &s_spi_bmi160_sensor ) ;
	
    if ( rslt == 0 ) {
            SEGGER_RTT_printf( 0,"bmi160 init success ! \n", rslt ) ; 	
          } // if
    else 
            SEGGER_RTT_printf( 0,"Error : bmi160 init fail ! \n", rslt ) ; 

    /* After the above function call, accel_cfg and gyro_cfg parameters in the device 
    structure are set with default values, found in the datasheet of the sensor */

    rslt = BMI160_OK ;

    /* Select the Output data rate, range of accelerometer sensor */
    s_spi_bmi160_sensor.accel_cfg.odr = BMI160_ACCEL_ODR_200HZ ;
    s_spi_bmi160_sensor.accel_cfg.range = BMI160_ACCEL_RANGE_2G ;
    s_spi_bmi160_sensor.accel_cfg.bw = BMI160_ACCEL_BW_OSR4_AVG1 ;
    
    /* Select the power mode of accelerometer sensor */
    s_spi_bmi160_sensor.accel_cfg.power = BMI160_ACCEL_NORMAL_MODE ;

    /* Select the Output data rate, range of Gyroscope sensor */
    s_spi_bmi160_sensor.gyro_cfg.odr = BMI160_GYRO_ODR_200HZ ;
    s_spi_bmi160_sensor.gyro_cfg.range = BMI160_GYRO_RANGE_2000_DPS ;
    s_spi_bmi160_sensor.gyro_cfg.bw = BMI160_GYRO_BW_NORMAL_MODE ;

    /* Select the power mode of Gyroscope sensor */
    s_spi_bmi160_sensor.gyro_cfg.power = BMI160_GYRO_NORMAL_MODE ;

    /* Set the sensor configuration */
    rslt = bmi160_set_sens_conf( &s_spi_bmi160_sensor ) ;

    /* Select the power mode */
    s_spi_bmi160_sensor.accel_cfg.power = BMI160_ACCEL_NORMAL_MODE ;
    s_spi_bmi160_sensor.gyro_cfg.power = BMI160_GYRO_NORMAL_MODE ;  

    /*  Set the Power mode  */
    rslt = bmi160_set_power_mode( &s_spi_bmi160_sensor ) ;
    nrf_delay_ms( 10 ) ; // delay_10ms
    
    /*  Set the calibration value  */	
    /*
    rslt = start_foc(&s_spi_bmi160_sensor);								
    SEGGER_RTT_printf(0,"foc rslt=%d",rslt);
    */
    struct bmi160_offsets sensor_offset;
    rslt = bmi160_get_offsets(&sensor_offset,&s_spi_bmi160_sensor);	
    SEGGER_RTT_printf(0,"calibration value: ax=%d,ay=%d,az=%d,gx=%d,gy=%d,gz=%d\n",sensor_offset.off_acc_x,sensor_offset.off_acc_y,sensor_offset.off_acc_z,sensor_offset.off_gyro_x,sensor_offset.off_gyro_y,sensor_offset.off_gyro_z);

} // Spi_sensor_Sensor_init()


static void Spi_get_data( void ) {
    // get bmi160 raw data
    //define counter
    uint32_t begin = 0;
    uint32_t end = 0;
    //begin = app_timer_cnt_get();
    struct bmi160_sensor_data accel ;
    struct bmi160_sensor_data gyro ;          

    int8_t rslt = BMI160_OK ;
    spi_xfer_done = false ;
    rslt = bmi160_get_sensor_data( ( BMI160_ACCEL_SEL | BMI160_GYRO_SEL | BMI160_TIME_SEL), &accel, &gyro, &s_spi_bmi160_sensor ) ; 
      if ( rslt != 0 )
              SEGGER_RTT_printf(0, "ERROR : get bmi160 data fail !" ) ; 
    nrf_delay_ms( 5 ) ; // delay_5ms

    s_spi_ori_data[ 0 ] = accel.x ;
    s_spi_ori_data[ 1 ] = accel.y ;
    s_spi_ori_data[ 2 ] = accel.z ;
    s_spi_ori_data[ 3 ] = gyro.x ;
    s_spi_ori_data[ 4 ] = gyro.y ;
    s_spi_ori_data[ 5 ] = gyro.z ;

   SEGGER_RTT_printf(0,"ax = %d, ay = %d, az = %d,gx = %d, gy = %d, gz = %d\n", accel.x, accel.y, accel.z, gyro.x, gyro.y, gyro.z) ;
   SEGGER_RTT_printf(0,"ACC and Gyro SensorTime= %u \n",accel.sensortime);

} // Spi_get_data()

int main(void){   
	
        //Spi_init();
        Spi_pin_init();
        Spi_sensor_Sensor_init();

        while(1)
        {
            Spi_get_data();
        }
}