Some TI SOCs offer the Processor SDK RTOS package for developing application on the RTOS/NORTOS CPUs. If you are a user of Processor SDK RTOS, the references listed on this page point to information that will assist you in migration to MCU+ SDK.

Change list between Processor SDK RTOS and MCU+ SDK, see this XLS
FreeRTOS comparison with SysBIOS, see FreeRTOS
PRUICSS Driver Migration Guide
ICSS-EMAC Migration Guide