Help!!Why ADuC7026 PWM Output is so weird?

Hello,

I Want to Generate 200KHz Square Wave Using The ADuC7026 PWM Module,The Clock Configured for the ADuC7026 is 41.78MHz.

The PWM Initialization Code is:

PWMInit

The Wave Output on the PWM0L is:

That is So Weird!

So,What is the Problem?

Would you like to tell me how can i change the code to generate 200KHz Square Wave?

Help me,Please!