Hi guys,I have a problem with simulink,I want to receive data from imu(gy_953) that uses serial interface and so i've use serial receive block in simulnk.but my result is random numbers that without motion of IMU, they are changing(independently.

what is wrong? what model should be used for my need?I want read data from my IMU that uses serial interface(not i2c).my board is Arduino due and my matlab 2015a.Withal I have true result in arduino IDE that includes on roll, pitch and yaw.My model has been attached.Please help me.