Texas Instruments Stellaris LM3S8962 Manual

LM3S8962 EVALUATION KIT

README FIRST

Rev. 1.4 1

Stellaris® LM3S8962 Evaluation Kit

The Stellaris LM3S8962 Evaluation Kit for Ethernet and CAN provides a low-cost way to

start designing Ethernet and controller area network (CAN) applications with Stellaris

microcontrollers. The LM3S8962 Evaluation Board (EVB) can function as either a complete

evaluation target, or as a debugger interface to any external Stellaris device. The included

USB cable is all that is needed to provide power and communication to the host PC.

LM3S8962 Evaluation Board

Requirements

You have a PC, with a USB interface, running Microsoft® Windows 2000. XP, or Vista

You have the Stellaris LM3S8962 Evaluation Kit Documentation and Software CD

Board Set-Up

The LM3S8962 Evaluation Board is configured for immediate use. First, connect the

LM3S8962 Evaluation Board to the LM3S2110 CAN Device Board using the 10-way ribbon

cable included in the kit. The cable inserts into the header labeled CAN on each board. To

power the EVB, use the USB cable supplied in the kit. Connect the mini-b (smaller) end of

the USB cable to the connector labeled “P4” on the EVB. Connect the other end (Type A) to a

free USB port on your host PC. The USB is capable of sourcing up to 500 mA for each

attached device, which is sufficient for the evaluation board.If connecting the board through a

USB hub, it must be a powered hub.

LM3S8962 EVALUATION KIT

README FIRST

Rev. 1.4

Important Note: Some customers with previous installations of the FTDI driver may

experience trouble when installing newer (2.02.04 and later) versions of the driver. The

problem only seems to affect users of Windows XP, and not Windows Vista. If you have any

problems with the driver installation, please visit http://www.luminarymicro.com/ftdi-driver

for information.

When you plug in the EVB for the first time, Windows starts the Found New Hardware

Wizard and asks if Windows can connect to Windows Update to search for software. Select

“No, not this time” and then click Next.

LM3S8962 EVALUATION KIT

README FIRST

Rev. 1.4

Next, the Found New Hardware Wizard asks from where to install the software. Select

“Install from a list or specific location (Advanced)” and click Next.

LM3S8962 EVALUATION KIT

README FIRST

Rev. 1.4

Make sure the “Documentation and Software” CD that came with the Evaluation Kit is in

your CD-ROM drive. Select “Search for the best driver in these locations,” and check the

“Search removable media (floppy, CD-ROM…)” option. Click Next.

LM3S8962 EVALUATION KIT

README FIRST

Rev. 1.4

A warning may pop up during the Hardware Installation like the one below; click Continue

Anyway.

LM3S8962 EVALUATION KIT

README FIRST

Rev. 1.4

Windows finishes installing the drivers for “Stellaris Evaluation Board A.” When the driver

install is finished, the Found New Hardware Wizard window appears like the one below.

Click Finish to close the dialog box.

You have just installed the drivers for “Stellaris Evaluation Board A.” The USB device built

into the EVB is a composite USB device. After you click Finish, Windows automatically

installs a driver for the “Stellaris Evaluation Board B” part of the composite USB device.

Follow the same instructions as above to install the drivers for this device.

The Found New Hardware Wizard appears one last time. This is to install the drivers for the

“Stellaris Virtual COM Port.” Again, follow the same instructions to install the drivers for this

device.

Now all of the hardware drivers for the LM3S8962 Evaluation Board have been installed.

These drivers give the debugger access to the JTAG interface and the host PC access to the

Virtual COM Port.

With the drivers installed, Windows automatically detects any new Stellaris boards that you

attach, and install the drivers for you.

LM3S8962 EVALUATION KIT

README FIRST

Rev. 1.4 7

Quickstart Application

The LM3S8962 Evaluation Board comes preprogrammed with a quickstart application. Once

you have powered the board, this application runs automatically. You have probably already

noticed this running as you installed the drivers. A splash screen appears on the OLED

display for a few seconds before the application begins.

The quickstart application is a game in which you navigate a character through a maze. Use

the directional push buttons to move the character, and the user pushbutton (SELECT) to fire

a missile to destroy the monsters. Score accumulates for maze progress and the number of

monsters destroyed. The game lasts for only one character “life,” the score displays at the end

of the game.

Since the OLED display on the evaluation board has burn-in characteristics similar to a CRT,

the application also contains a screen saver. The screen saver only becomes active if two

minutes have passed without the user pushbutton being pressed while waiting to start the

game (that is, the screen saver never appears during game play).

After two minutes of running the screen saver, the display turns off and the user LED blinks.

Exit either mode of screen saver by pressing the user pushbutton (SELECT). Press the button

again to start the game.

The LM3S8962 Evaluation Board uses the CAN module on the LM3S8962 to communicate

with the included CAN device board. During game play, the volume is adjusted by using the

“Up” and “Down” buttons on the CAN device board. The Status LED on the CAN device

board will blink during various portions of the quick start application.

The LM3S8962 microcontroller contains an integrated Ethernet controller, which is also used

by the game. During the game, a user can attach the board to a LAN. If there is a DHCP

server present on the LAN, the board attempts to obtain an IP address from the DHCP server.

After about a minute, if no DHCP server is found, the board defaults to an IP address of

169.254.19.63. The IP address then displays at the bottom of the main game screen. To view

the web page you must configure your host machine to be on the same subnet as the board. 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.

LM3S8962 EVALUATION KIT

README FIRST

Rev. 1.4

In some cases, you need to manually configure your IP address and mask subnet. 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.

Now you can connect your host machine directly to the LM3S8962 evaluation board with the

Ethernet cable provided in the evaluation kit. The integrated PHY on the LM3S8962 has an

Auto-MDX feature which allows you to use a straight-though or cross-over Ethernet cable. To

access the board’s web page, simply type in the address displayed at the bottom of the game

screen (for example, http://169.254.19.63) into the address bar of your host’s web browser

and the web page will be loaded from the LM3S8962 evaluation board.

LM3S8962 EVALUATION KIT

README FIRST

Rev. 1.4

While the game is being played, a running tally of the score is output through UART0 of the

LM3S8962 microcontroller. UART0 is connected to the FTDI’s second serial channel. This

serial channel is available to Windows as a Virtual COM port. To view the score, open up a

terminal application such as HyperTerminal. Connect using COM#, where # is the number

Windows has assigned the Virtual COM port. Set the serial connection to a baud rate of

115200, 8 data bits, no parity, 1 stop bit, and no flow control.

To determine which COM# Windows has assigned to the Virtual COM port on the

LM3S8962 microcontroller, follow these steps:

1) From the Start Menu, select Control Panel, then double-click the System icon.

2) Select the Hardware tab.

3) Click on the Device Manager button.

4) Click on the + symbol to expand the Ports (COM & LPT) group.

5) “Stellaris Virtual COM Part (COM#)” is listed as shown in the figure below. This

COM# is the device you connect to using your terminal application. In this example,

the COM port is COM13.

LM3S8962 EVALUATION KIT

README FIRST

Texas Instruments. ARM and Thumb are registered trademarks, and Cortex is a trademark of ARM Limited. Other names

and brands may be claimed as the property of others.

Texas Instruments

108 Wild Basin Rd., Suite 350

Austin, TX 78746

http://www.ti.com/stellaris

Rev. 1.4 1/12/2010

Software Development Tools

The next step is to install and run the software development tools included in the evaluation

kit. For more information, see the quickstart guides included on the Stellaris LM3S8962

Evaluation Kit CD. Additional tools may be available through the www.ti.com/stellaris web

site.

References

The following references are included on the Stellaris LM3S8962 Evaluation Kit

Documentation and Software CD and are also available for download at www.ti.com/stellaris:

Stellaris LM3S8962 Evaluation Kit User's Manual

StellarisWare® Driver Library

StellarisWare® Driver Library User’s Manual

Stellaris LM3S8962 Microcontroller Data Sheet

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