求助，mpu9255 用RTIMULib。连接不上

andyup

#define MPU9150_68     如下

ArduinoIMU starting using device MPU-9150
Failed to init IMU: -6
No valid compass calibration data


#define MPU9150_69          如下         

ArduinoIMU starting using device MPU-9150
Failed to init IMU: -1
No valid compass calibration data

#define MPU9250_68            如下      


ArduinoIMU starting using device MPU-9250
Failed to init IMU: -1
No valid compass calibration data


#define MPU9250_69             如下      

ArduinoIMU starting using device MPU-9250
Failed to init IMU: -1
No valid compass calibration data


mpu9255，怎么改动一下可以用RTIMULib？？求解一下。。。