I would like to know about the possibilities of running a Realtime OS on Xavier NX
Jetson Xavier NX provide a built-in Cortex-R5 micro-controller within an always-on power domain also known as Sensor Processing Engine (SPE). Example uses include sensor data processing, wake up management, UAV, and robotics.
This source file will aid in the development of FreeRTOS-based firmware for SPE.
Please find the Jetson Sensor Processing Engine (SPE) Software Sources from https://developer.nvidia.com/embedded/downloads