CCS/TM4C1294NCPDT: Bootloader using USB as well as UART

//*****************************************************************************
//
// The following defines are used to configure the operation of the boot
// loader.  For each define, its interactions with other defines are described.
// First is the dependencies (in other words, the defines that must also be
// defined if it is defined), next are the exclusives (in other words, the
// defines that can not be defined if it is defined), and finally are the
// requirements (in other words, the defines that must be defined if it is
// defined).
//
// The following defines must be defined in order for the boot loader to
// operate:
//
//     One of CAN_ENABLE_UPDATE, ENET_ENABLE_UPDATE, I2C_ENABLE_UPDATE,
//            SSI_ENABLE_UPDATE, UART_ENABLE_UPDATE, or USB_ENABLE_UPDATE
//     APP_START_ADDRESS
//     VTABLE_START_ADDRESS
//     FLASH_PAGE_SIZE
//     STACK_SIZE
//
//*****************************************************************************

//*****************************************************************************
//
// Selects the UART as the port for communicating with the boot loader.
//
// Depends on: None
// Exclusive of: CAN_ENABLE_UPDATE, ENET_ENABLE_UPDATE, I2C_ENABLE_UPDATE,
//               SSI_ENABLE_UPDATE, USB_ENABLE_UPDATE
// Requires: UART_AUTOBAUD or UART_FIXED_BAUDRATE, UART_CLOCK_ENABLE, 
//           UARTx_BASE, UART_RXPIN_CLOCK_ENABLE, UART_RXPIN_BASE, 
//           UART_RXPIN_PCTL, UART_RXPIN_POS, UART_TXPIN_CLOCK_ENABLE,
//           UART_TXPIN_BASE, UART_TXPIN_PCTL and UART_TXPIN_POS
//
//*****************************************************************************
#define UART_ENABLE_UPDATE

//*****************************************************************************
//
// Selects USB update via Device Firmware Update class.
//
// Depends on: None
// Exclusive of: CAN_ENABLE_UPDATE, ENET_ENABLE_UPDATE, I2C_ENABLE_UPDATE,
//               SSI_ENABLE_UPDATE, UART_ENABLE_UPDATE,
// Requires: CRYSTAL_FREQ, USB_VENDOR_ID, USB_PRODUCT_ID, USB_DEVICE_ID,
//           USB_MAX_POWER
//
//*****************************************************************************
//#define USB_ENABLE_UPDATE