There’s a new kid on the block, the Tiva LaunchPad TM4C123GXL. It essentially a superset of the Stellaris LaunchPad LM4F120XL. It has all the same functionality, plus PWM, QEI, and USB Host/OTG. All of your old StellarisWare code can run on this board, though there is a new TivaWare library for this board. In effect