I recommend playing around with the examples that come with TI-RTOS, these were made for the Tiva C LaunchPad (which I assume you have) and not for the Stellaris.
You also get to learn about using an RTOS, which is a very nice thing to learn and use. Once you get used to it, it is hard to believe you could work with bare metal. You get a bunch of different type of threads at different priorities, clocks, timers, semaphores, mutexs and a heap of other stuff. And the debug features are great also.
Here are the steps to install the examples:-
1) Make sure you have installed TI-RTOS and the latest version of CCS installed
2) Select TI Resource Explorer from the View menu within CCS
3) Select TI-RTOS from the Packages drop down
4) Expand ARM - Expand Tiva C Series - Expand Tiva TM4C123GH6PM - Expand Example Projects
5) Select the example you would like to use or review
6) Follow the 4 steps present to install and build the example
Glenn.