formatted BBB and MATLAB 2014b

Hi guys,

I have a formatted BBB and I have to install it for MATLAB 2014b (use it for Simulink). When I plug in to computer via USB, only one light next to power supply cable is On.
I think I need to install Debian in it.
So anyone can guide me to operate my BBB and download Debian for Matlab 2014b support?

Thanks