Texas Instruments Stellaris LM3S9D90 Manual de usuario

User’s Manual

Stellaris® LM3S9D90 Evaluation Kit User’s

Manual

2July 5, 2011

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Texas Instruments

108 Wild Basin, Suite 350

Austin, TX 78746

http://www.ti.com/stellaris

July 5, 2011 3

Table of Contents

Chapter 1: Stellaris® LM3S9D90 Evaluation Kit Overview ...........................................................................7

Kit Contents........................................................................................................................................................8

Using the EK-LM3S9D90....................................................................................................................................8

Features..............................................................................................................................................................8

Chapter 2: Hardware Description..................................................................................................................11

Evaluation Board ..............................................................................................................................................11

Functional Description ..................................................................................................................................11

In-Circuit Debug Interface Board ......................................................................................................................14

Functional Description ..................................................................................................................................14

Chapter 3: Software Development ................................................................................................................17

Software Description.........................................................................................................................................17

Source Code.....................................................................................................................................................17

Tool Options .....................................................................................................................................................17

Programming the EK-LM3S9D90 Board...........................................................................................................17

Appendix A: Schematics................................................................................................................................19

Appendix B: Connection Details...................................................................................................................25

Component Locations.......................................................................................................................................25

Board Dimensions ............................................................................................................................................26

Board Connectivity............................................................................................................................................27

References .......................................................................................................................................................27

Appendix C: Microcontroller GPIO Assignments........................................................................................29

4July 5, 2011

List of Figures

Figure 1-1. LM3S9D90 Evaluation Board..........................................................................................................7

Figure 1-2. In-Circuit Debug Interface Board.....................................................................................................7

Figure 2-1. EK-LM3S9D90 Evaluation Board Block Diagram..........................................................................11

Figure 2-2. GPIO Pads....................................................................................................................................12

Figure 2-3. JTAG/SWD Connector..................................................................................................................12

Figure 2-4. PWR/UART Connector..................................................................................................................13

Figure 2-5. In Circuit Debug (ICDI) Board Block Diagram...............................................................................14

Figure 2-6. JTAG/SWD Connector J1 .............................................................................................................15

Figure 2-7. JTAG/SWD Connector J3 .............................................................................................................15

Figure 2-8. PWR/UART Connector..................................................................................................................15

Figure B-1. EK-LM3S9D90 Evaluation Board Component Locations..............................................................25

Figure B-2. BD-ICDI Board Component Locations ..........................................................................................25

Figure B-3. EK-LM3S9D90 Evaluation Board Dimensions ..............................................................................26

Figure B-4. In-Circuit Debug Interface Board Dimensions...............................................................................26

Figure B-5. ICDI – EK-LM3S9D90 Board Connectivity....................................................................................27

July 5, 2011 5

List of Tables

Table C-1. EK-LM3S9D90 Evaluation Board GPIO Usage.............................................................................29

6July 5, 2011

July 5, 2011 7

Stellaris® LM3S9D90 Evaluation Kit Overview

Texas Instruments' Stellaris® LM3S9D90 Evaluation Board Kit (EK-LM3S9D90) is a low-cost

platform for evaluation of the LM3S9D90 microcontroller. The kit includes two boards, the

EK-LM3S9D90 evaluation board, and the In-Circuit Debug Interface (BD-ICDI) board.

The EK-LM3S9D90 board includes the LM3S9D90 ARM® Cortex™-M3 Microcontroller, a 10/100

Mbit Ethernet port, a full-speed USB-OTG port, connectors for inteface to the BD-ICDI board, and

oversized pads for easy connection to the microcontroller GPIO ports.

The BD-ICDI board is a USB full-speed JTAG/SWD debugger board. It includes a USB miniB

connector for connection to a USB PC port, and two shrouded header connectors for connection to

the EK-LM3S9D90 board.

Development of software for the EK-LM3S9D90 is simplified by using Texas Instruments’

comprehensive StellarisWare® peripheral driver library and ARM development tools from our tools

partners. The Stellaris® LM3S9D90 Evaluation Board Kit includes the two boards described, a

documentation CD, and cables. All design files are provided on the EK-LM3S9D90 CD.

Figure 1-1. LM3S9D90 Evaluation Board

Figure 1-2. In-Circuit Debug Interface Board

CHAPTER 1

Stellaris® LM3S9D90 Evaluation Kit Overview

8July 5, 2011

Kit Contents

The EK-LM3S9D90 evaluation kit comes with the following:

EK-LM3S9D90 evaluation board

In-Circuit Debug Interface (BD-ICDI) board

–Connects to USB port on PC and to 10-pin, fine-pitch ARM JTAG connector on the

EK-LM3S9D90 evaluation board

–Secondary 8-pin Power/UART connector provides power and virtual comm-port capability

to the EK-LM3S9D90 evaluation board.

Cables

–USB miniB to USB-A cable

–USB-OTG to USB-A cable

–10-pin ribbon cable for JTAG/SWD connection

–8-pin ribbon cable for Power/UART connection

CD containing:

–A supported version of one of the following (including a toolchain-specific Quickstart

guide):

• Keil™ RealView® Microcontroller Development Kit (MDK-ARM)

• IAR Embedded Workbench

• Sourcery CodeBench development tools

• Code Red Technologies development tools

• Texas Instruments’ Code Composer Studio™ IDE

–Complete documentation

–Quickstart application source code

–Stellaris® Firmware Development Package with example source code

Using the EK-LM3S9D90

The recommended steps for using the EK-LM3S9D90 evaluation kit are:

1. Follow the Quickstart guide included in the kit. The Quickstart guide will help get the

EK-LM3S9D90 Evaluation Board up and running in minutes.

2. Use your preferred ARM tool-chain and the Stellaris Peripheral Driver Library to

develop an application. Software applications are loaded using the BD-ICDI board. See

Chapter 3, “Software Development,” for the programming procedure. The StellarisWare

Peripheral Driver Library Software Reference Manual contains specific information on

software structure and function.

3. Customize and integrate the hardware to suit an end application. This user's manual is an

important reference for understanding circuit operation and completing hardware modification.

Features

The EK-LM3S9D90 evaluation kit provides the following features:

Stellaris® LM3S9D90 Evaluation Kit User’s Manual

July 5, 2011 9

LM3S9D90 high-performance Stellaris microcontroller and large memory

–32-bit ARM® Cortex™-M3 core

–512 KB single-cycle Flash memory, 96 KB single-cycle SRAM

Ethernet 10/100 port with two LED indicators

USB 2.0 Full-Speed OTG port

Virtual serial communications port capability

Oversized board pads for GPIO access

User pushbutton and LED

Detachable ICDI board can be used for debugging other Stellaris boards

Easy to customize

–Includes full source code, example applications, and design files

–Develop using tools supporting FastMATH from Keil, IAR, Code Sourcery, and Code Red

(using a Stellaris evaluation kit or preferred ARM Cortex-M3 debugger)

–Supported by Texas Instruments’ StellarisWare peripheral driver library

Stellaris® LM3S9D90 Evaluation Kit Overview

10 July 5, 2011

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