Installation Guide

Make sure you have installed MATLAB R2013a. The 64 bit version is preferred, because I have only tested the support package on my PC, which runs 64 bit MATLAB. However, you can still try to use 32 bit if you insist.
Then, download the installation script and put it into your MATLAB current directory. Run command sippey_targetinstaller in MATLAB to initiate the web installation process.
Follow the wizard, install "Stelleris LP" first and then run the sippey_targetinstaller and install "Stellaris LP Third Party".
Plug in your Stellaris LaunchPad, with USB connect to the connector marked "DEBUG". If Windows asks for driver, look it up under the path "C:\MATLAB\SupportPackages\R2013a\StellarisWare_lite\windows_drivers" (this is the default path, if you have changed the default, please adapt this path accordingly).
In MATLAB command line window, run stellaris_lp_setup to select the COM port. When questioned about whether to use the default path, please select "Yes" unless you know what you are doing.

Build a demo project to test if the install is complete.
If you still have the demo project list page open, open the LED project. Hit "Open model and try" to open the simulink model
If you have already closed the page, open Help from MATLAB. Click "Supplemental Software" at the main page. A new window will be open and you will find it under the "Example" tree from the navigation panel on the left.
Click Build on the toolbar or press short key Ctrl+B to compile and download the program. Soon you will see the LED on the Stellaris LaunchPad starts blinking, which means the compiling is successful and the installation steps are done flawlessly.