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f28335 extern pwm synchronisation

Hello,

I'm working with eZdsp F28335 Controller and with Matlab Simulink (IDE CCSv3.3)

I have an extern signal source (5kHz PWM) and would synchronize the ePWM Moduls on two diffrent F28335 Controller.

Is this possible ?

On the ePWM Moduls I tick the "Add S/W sync input port" (Input port appears).

Than I connect the GPIO(20) Input (external PWM) with the Sync Input port of the ePWM in my Model.

After that i run the Programm on two diffrent  F28335 DSP and connect the external PWM on GPIO(20).

But if i display the two PWM Signal on an oscilloscope the two PWM would be phase shifted.

Please help me.

Best Regards

Dennis