L M 3 S 9 B 9 0 E V A L U A T I O N K I T
R E A D M E F I R S T
Rev. 1.3
Playing the Game via Ethernet
The LM3S9B90 microcontroller contains an integrated Ethernet controller, which can be used
by the game. Attach the board to a LAN or directly to your PC. If there is a DHCP server
present on the LAN, the board attempts to obtain an IP address from the DHCP server. If an
IP address cannot be obtained from a DHCP server, the board acquires a link local IP address
using the AutoIP protocol. If connecting to a LAN, your PC’s configuration should match the
board’s, except for the IP address. In most cases, if you connect the board directly to your PC,
your machine automatically detects the correct IP address and subnet settings after several
seconds.
In some cases, you need to manually configure your IP address and subnet mask when
connecting the evaluation board directly to your PC. To do this, disable the machine’s
wireless network connection and any other internet connections that could interfere with the
network being created. Select the Internet Protocol (TCP/IP) connection within the Local
Area Connection Properties and click on Properties. Next, manually configure your IP address
as 169.254.19.60 and your subnet mask to 255.255.0.0, as shown below. The application
running on the LM3S9B90 evaluation board has a software Auto-MDX feature which allows
you to use a straight-though or cross-over Ethernet cable.
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