Ethernet with lwIP TCP/IP Stack

This example application demonstrates the operation of the Stellaris
Ethernet controller using the lwIP TCP/IP Stack.  DHCP is used to obtain an
Ethernet address.  If DHCP times out without obtaining an address, a static
IP address will be used.  The DHCP timeout and the default static IP are
easily configurable using macros.  The address that is selected will be
shown on the OLED display.

The file system code will first check to see if an SD card has been plugged
into the microSD slot.  If so, all file requests from the web server will
be directed to the SD card.  Otherwise, a default set of pages served up
by an internal file system will be used.

For additional details on lwIP, refer to the lwIP web page at:
http://www.sics.se/~adam/lwip/

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Copyright (c) 2007 Luminary Micro, Inc.  All rights reserved.

Software License Agreement

Luminary Micro, Inc. (LMI) is supplying this software for use solely and
exclusively on LMI's microcontroller products.

The software is owned by LMI and/or its suppliers, and is protected under
applicable copyright laws.  All rights are reserved.  You may not combine
this software with "viral" open-source software in order to form a larger
program.  Any use in violation of the foregoing restrictions may subject
the user to criminal sanctions under applicable laws, as well as to civil
liability for the breach of the terms and conditions of this license.

THIS SOFTWARE IS PROVIDED "AS IS".  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.
LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.

This is part of revision 1952 of the Stellaris Peripheral Driver Library.