TMDX570LC43HDK: Interaction between FreeRTOS and a 100us interrupt

Hy,

why it is not possible to enable RTI on HalCoGen if I choose to create a FreeRTOS project?

I think it is used for the tick, if this is true it means that I can't create also an interrupt,

for example I need a 100us interrupt interacting with freeRTOS, it is possible to achieve this?

Thanks

Antonio