Hi,
Thank you so much for your interest in our products and for using our community.
With RT series it is possible to generate PWM signals with different timers (FlexIO, TMR and eFlexPWM). For motor control eFlexPWM is your best option.
There are SDK examples, but not the one that require.
I consider that the best way to follow is to refer to the PWM configuration from motor control demos in MCUXPRESSO-SDK-MOTOR-CONTROL.
On the other hand, there is the app note AN14196 Flex Pulse Width Modulator (FlexPWM) Usage on MCX N Series, with its respective associated SW file (AN14196SW). This is for another MCU but it uses the same module and its configuration should be quite similar.
Hope it helps you.
Have a nice day!