Ethernet with lwIP

This example application demonstrates the operation of the Tiva
Ethernet controller using the lwIP TCP/IP Stack.  DHCP is used to obtain
an Ethernet address.  If DHCP times out without obtaining an address,
AutoIP will be used to obtain a link-local address.  The address that is
selected will be shown on the UART.

UART0, connected to the ICDI virtual COM port and running at 115,200,
8-N-1, is used to display messages from this application. Use the
following command to re-build the any file system files that change.

    ../../../../tools/bin/makefsfile -i fs -o enet_fsdata.h -r -h -q

For additional details on lwIP, refer to the lwIP web page at:
http://savannah.nongnu.org/projects/lwip/

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Copyright (c) 2013-2014 Texas Instruments Incorporated.  All rights reserved.
Software License Agreement

Texas Instruments (TI) is supplying this software for use solely and
exclusively on TI's microcontroller products. The software is owned by
TI and/or its suppliers, and is protected under applicable copyright
laws. You may not combine this software with "viral" open-source
software in order to form a larger program.

THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, FOR ANY REASON WHATSOEVER.

This is part of revision 2.1.0.12573 of the EK-TM4C1294XL Firmware Package.