IN YPR R is not changing for variable P

[ajettesla]

I am using the code provided Jrowberg. Pitch and roll works pretty well when the accelerometer starts when ypr are at 0, 0 ,0 . When we set roll to 90 then if I change pitch then yaw is changing and it is not accurate like it suddenly changes from166 to 40. If we change the pitch values the yaw also changes. I tried different case by setting different roll values but I am facing same problem. could you please help me. The Teapot simulation works well.

[ajettesla]

I just want x, y and z axis rotation without affected by gimbal lock.