Set ePWM to low state when my Simulink program ends

Hi,

I have a Simulink program (R2017b) which generates complementary ePWMs on a f28335 to drive MOSFETs gates (full H bridge application).

When I stop my program (in external mode), one ePWM keeps a high voltage value, since both of them are complementary. It draws an unecessary high-current in my system.

I would like to be able to set all my ePWMs ports to a low-state logic value when I stop the Simulink simulation.

I've read some topics about "terminate system" blocks and "trip-zone" units, but nothing helped me so far.

Does anyone has any idea of how to implement this function in my program ?

Thanks, Charles