code: def set_scale(self, scale):
          
          register = self.MMA8452Q_Register['XYZ_DATA_CFG']
          self.board.i2c_read_request(self.address, register, 1,
                                      Constants.I2C_READ | Constants.I2C_END_TX_MASK,
                                      self.data_val, Constants.CB_TYPE_DIRECT)
  
  
          config_reg = self.wait_for_read_result()
          config_reg = config_reg[self.data_start]
          config_reg &= 0xFC  # Mask out scale bits
          config_reg |= (scale >> 2)
          self.board.i2c_write_request(self.address, [register, config_reg])
docs: Set the device scale register.
          Device must be in standby before calling this function
          @param scale: scale factor
          @return: No return value