Texas Instruments Stellaris LM3S9B90 Manual

LM3S9B90 EVALUATION KIT

README FIRST

Rev. 1.3 1

Stellaris® LM3S9B90 Evaluation Kit

The Stellaris LM3S9B90 Evaluation Kit for Ethernet and USB OTG provides a low-cost way

to start designing Ethernet and USB OTG applications with Stellaris microcontrollers. The

LM3S9B90 Evaluation Board (EVB) functions as a complete evaluation target that also

includes a debugger interface (BD-ICDI) that can be used to program and debug the

evaluation board as well as any other external Stellaris device. The included USB cable is all

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

LM3S9B90 Evaluation Board

Requirements

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

You have the Stellaris LM3S9B90 Evaluation Kit Documentation and Software CD

Board Set-Up

The LM3S9B90 Evaluation Board is configured for immediate use. First, connect the

LM3S9B90 Evaluation Board to the ICDI board using the 8-pin and 10-pin ribbon cables

included in the kit. The 8-pin cable inserts into the header labeled PWR/UART on each board.

The 10-pin cable inserts into the header labeled JTAG/SWD on each board. To power the

EVB, use the USB-miniB to USB-A cable supplied in the kit. Connect the miniB (smaller)

end of the USB cable to the connector labeled “USB J4” on the ICDI board. 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.

Important Note: The next step explains how to install the FTDI drivers for the board. Some

customers with previous installations of the FTDI drivers 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, go to www.ti.com/lm_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.

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Rev. 1.3

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.

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

LM3S9B90 EVALUATION KIT

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Rev. 1.3

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

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.

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Rev. 1.3 4

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 FTDI drivers for the LM3S9B90 Evaluation Board have been installed. These

drivers give the debugger access to the JTAG/SWD interface and the host PC access to the

Virtual COM Port.

With the drivers installed, Windows will automatically detect any new Stellaris boards that

you attach, and install the drivers for you.

Quickstart Application

The LM3S9B90 Evaluation Board comes preprogrammed with a quickstart application. Once

you have powered the board, this application runs automatically. The quickstart application is

a game that consists of a Z-machine interpreter running a Z-code version of the classic

Colossal Cave Adventure game originally created by William Crowther. The Ethernet

interface provides a telnet server and the USB interface provides a CDC serial port. Either

interface can be used to play the game, though not at the same time.

The LED on the evaluation board will be turned on when the game is being played; further

connections will be refused since only one instance of the game can be played at a time. The

push button on the evaluation board will restart the game from the beginning; this is

equivalent to typing ``restart'' followed by ``yes'' in the game itself.

The virtual COM port provided by the ICDI board (which is connected to UART0 on the

evaluation board) provides a simple status display. The most important piece of information

provided is the IP address of the Ethernet interface.

The game is played by typing simple English sentences in order to direct the actions of the

protagonist, with abbreviations being allowed. For example, ``go west'', ``west'', and ``w'' all

perform the same action.

Three display modes are available; ``verbose'' (which displays the full description every time

a location is visited), ``brief'' (which displays the full description the first time a location is

visited and only the name every other time), and ``superbrief'' (which only displays the name).

The default display mode is ``brief'', and ``look'' can be used to get the full description at any

time (regardless of the display mode).

LM3S9B90 EVALUATION KIT

README FIRST

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.

LM3S9B90 EVALUATION KIT

README FIRST

Rev. 1.3

Determining the IP Address

The IP address of the LM3S9B90 evaluation board can be obtained in two ways:

Using the Finder utility

Using the Virtual COM port

Using the Finder Utility

1. Insert the Documentation and Software CD into the CD-ROM drive of your computer. If

Autoplay is enabled on your PC, the index.htm file automatically opens in your default

web browser. If not, use Windows Explorer or other browser to open the index.htm file

manually.

2. From the CD menu, select the Tools button. Click the ‘Download’ link for the Finder

utility.

3. Save the Finder utility to your preferred location.

4. Browse to the location where you saved the Finder utility and double click the icon to run

the utility.

5. The Finder utility will start up and you should see the S2E module in the list of available

Stellaris boards similar to the screen shot below. The IP address listed will be used in the

next step.

Note: You can alternatively run the Finder application directly from the CD. The Finder

utility is located in the /Tools/Finder directory on the CD.

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Rev. 1.3 7

Using the Virtual COM Port

1. Open a HyperTerminal window. On Windows XP, HyperTerminal can be found by

clicking Start, Programs, Accessories, and then Communications.

2. Enter a name for the terminal window and click OK.

3. In the Connect Using pull-down menu, select the COM port associated with the “Stellaris

Virtual COM Port” and click OK. Use Device Manager to determine the correct COM

port if necessary.

4. Select 115200 bits per second, 8 data bits, no parity, 1 stop bit, and no flow control. Click

OK.

5. Press the reset switch on the board. The text in the HyperTerminal will indicate that the IP

address is being acquired. Wait for the IP address to be acquired.

Open a Telnet Connection and Play the Game

1. Open a HyperTerminal window.

2. Enter a name for the terminal window and click OK.

3. In the Connect Using pull-down menu, select TCP/IP (Winsock). Set the Port number to

23 and set the Host address to the IP address of the board found in the previous step. Then

click OK.

4. You should see the introduction text of the game. The game is now ready to be played.

See the Game Hints section below for hints.

Playing the Game via USB

The LM3S9B90 microcontroller contains an integrated OTG USB controller, which can be

used by the game. Using the USB-OTG to USB-A cable, connect the OTG end to the board

and the Type A end to your PC. 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.

LM3S9B90 EVALUATION KIT

README FIRST

Rev. 1.3

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.

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

LM3S9B90 EVALUATION KIT

README FIRST

Rev. 1.3

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

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

Anyway.

LM3S9B90 EVALUATION KIT

README FIRST

Rev. 1.3

Windows finishes installing the drivers for “Stellaris USB serial port.” 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 USB serial port.”

1. Open a HyperTerminal window. On Windows XP, HyperTerminal can be found by

clicking Start, Programs, Accessories, and then Communications.

2. Enter a name for the terminal window and click OK.

3. In the Connect Using pull-down menu, select the COM port associated with the “Stellaris

USB serial port” and click OK. Use Device Manager to determine the correct COM port if

necessary.

4. Select 115200 bits per second, 8 data bits, no parity, 1 stop bit, and no flow control. Click

OK.

5. Type any character. You should see the introduction text of the game. The game is now

ready to be played. See the Game Hints section below for hints.

Game Hints

Important Note: This section contains hints that reveal solutions to a couple of the early

puzzles in the game. Skip this section to avoid spoiling the full fun and experience of the

game.

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