We are using EWM(external watchdog monitor) module on MK50DX256CLL10 controller for powerfail application.I have given 100ms pulses as input to the EWM_in pin from external circuit. I need an interrupt if we misses the pulse in 100ms time. I cannot use EWM_out pin because we are already using it for other applications, Is there anyway to get interrupt without using EWM_out. External circuit will not generate a pulse if powerfail occurs. I need interrupt when EWM_in misses the pulse(powerfail) It should be software interrupt without using EWM_out pin.
we need clarification weather we can generate interrupt in software without using EWM_out pin. Appreciate your help in understanding EWM. Is there any initialization or sample code for this?