Texas Instruments Stellaris LM3S6965 User Manual

Stellaris® LM3S6965 Evaluation Board

User’s Manual

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2 January 6, 2010

Stellaris® LM3S6965 Evaluation Board

Table of Contents

Chapter 1: Stellaris® LM3S6965 Evaluation Board ....................................................................................... 7

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

Block Diagram ....................................................................................................................................................8

Evaluation Kit Contents ...................................................................................................................................... 9

Evaluation Board Specifications .....................................................................................................................9

Features of the LM3S6965 Microcontroller.........................................................................................................9

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

LM3S6965 Microcontroller......................... ... .... ... ... ... ... .... ... ... ... .......................................................................11

Device Overview...........................................................................................................................................11

Ethernet ........................................................................................................................................................11

Clocking........................................................................................................................................................ 11

Reset.............................................................................................................................................................11

Power Supplies.............................................................................................................................................12

Debugging.....................................................................................................................................................12

USB Device Controller Functions ..................................................................................................................... 13

Device Overview...........................................................................................................................................13

USB to JTAG/SWD............. ... ... ... .... ... ... .................................................... ................................................... 13

Virtual COM Port........................................................................................................................................... 13

Serial Wire Out..............................................................................................................................................13

Organic LED Display ........................................................................................................................................ 13

Features........................................................................................................................................................ 13

Control Interface ...........................................................................................................................................14

Power Supply................................................................................................................................................ 14

Design Guidelines............................................... .................................................... ......................................14

Further Reference.........................................................................................................................................14

Other Peripherals............. ... .................................................... ..........................................................................14

Speaker.........................................................................................................................................................14

MicroSD Card Slot.................................................... .... ................................................... .............................14

Push Switches ............. ... .... ... ... .................................................... ................................................................ 14

User LED ............... ................................................ ... .... ... ... ... .... ... ... ............................................................. 15

Bypassing Peripherals............................................................... .... ...................................................................15

Interfacing to the EVB....................................................................................................................................... 15

Using the In-Circuit Debugger Interface ...........................................................................................................16

Appendix A: Schematics................................................................................................................................17

Appendix B: Connection Details...................................................................................................................23

Component Locations.......................................................................................................................................23

Evaluation Board Dimensions...........................................................................................................................24

I/O Breakout Pads ............................................................................................................................................24

Recommended Connectors.............................................................. ... ... .......................................................... 25

ARM Target Pinout ........................................................................................................................................... 26

References .......................................................................................................................................................26

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List of Figures

Figure 1-1. Stellaris LM3S6965 Evaluation Board Layout.................................................................................7

Figure 1-2. LM3S6965 Evaluation Board Block Diagram.................................................................................. 8

Figure 2-1. ICD Interface Mode ....................................................................................................................... 16

Figure B-1. Component Locations ...................................................................................................................23

Figure B-2. Evaluation Board Dimensions ............................. ... .... ... ... ... .... ... ... ................................................ 24

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Stellaris® LM3S6965 Evaluation Board

List of Tables

Table 2-1. Stellaris LM3S6965 Evaluation Board Hardware Debugging Configurations ... .... ... ... ...... .... ... ... ... 12

Table 2-2. Isolating On-Board Hardware........................................................................................................15

Table B-1. I/O Breakout Pads.........................................................................................................................25

Table B-2. Recommended Connectors................. ... ... .... ... .................................................... ... ... ... ... .............25

Table B-3. 20-Pin JTAG/SWD Configuration..................................................................................................26

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CHAPTER 1

Stellaris® LM3S6965 Evaluation Board

The Stellaris® LM3S6965 Evaluation Board is a compact and versatile evaluation platform for the Stellaris LM3S6965 ARM® Cortex™-M3-based microcontrolle r. The evaluation kit uses the LM3S6965 microcontroller’s fully integrated 10/100 Ethernet controller to demonstrate an embedded web server.

You can use the board either as an evaluation platform or as a low-cost in-circuit debug interface (ICDI). In debug interface mode, the on-board microcontroller is bypassed, allowing programming or debugging of an external targ et. The kit is also comp atible with high-performance extern al JT AG debuggers.

This evaluation kit enables quick evaluation, prototype development, and creation of applicationspecific designs for Ethernet networks. The kit also includes extensive source-code examples, allowing you to start building C code applications quickly.

Figure 1-1. Stellaris LM3S6965 Evaluation Board Layou t

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Features

USB

Stellaris

LM3S6965

Microcontroller

Dual USB

Device

Controller

OLED Display

128 x 96

Debug

Nav

Switch

LED

I/O Signal Break-out

I/O Si gnal Break-out

JTAG/SWD

Output/Input

USB Cable

Reset

+3.3V

Regulator

SWD/JTAG

Mux

UART0

Speaker

RJ45

Jack+

Magnetics

CAT5 Cable

Features

The Stellaris LM3S6965 Evaluation Board includes the following features:

 Stellaris LM3S6965 microcon tr oller with fully-integrated 10/100 embedded Ethernet controller  Simple setup; USB cable provides serial communication, debugging, and power  OLED graphics display with 128 x 96 pixel resolution  User LED, navigation switches, and select pushbuttons  Magnetic speaker  LM3S6965 I/O available on labeled break-out pads  Standard ARM® 20-pin JTAG debug connector with input and output modes  USB interface for debugging and power supply  MicroSD card slot

Block Diagram

Figure 1-2. LM3S6965 Evaluation Board Block Diagram

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Evaluation Kit Contents

The evaluation kit contains everything needed to develop and run applications for S tellaris microcontrollers including:

 LM3S6965 Evaluation Board (EVB)  USB cable  20-pin JTAG/SWD target cable  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

• Code Sourcery GCC development tools

• Code Red Technologies development tools

• Texas Instruments’ Code Composer Studio™ IDE

– Complete documentation

Stellaris® LM3S6965 Evaluation Board

– Quickstart application source code – Stellaris® Firmware Development Package with example source code

Evaluation Board Specifications

 Board supply voltage: 4.37–5.25 Vdc from USB connector  Boar d su pp ly curre nt : 250 mA typ (fully active, CPU at 50 MHz)  Break-out power output: 3.3 Vdc (60 mA max), 15 Vdc (15 mA max)  Dimensions: 4.0” x 2.45” x 0.7” (LxWxH)  RoHS status: Compliant

Features of the LM3S6965 Microcontroller

 32-bit RISC performance using ARM® Cortex™-M3 v7M architecture

– 50-MHz operation – Hardware-division and single-cycle-multiplication – Integrated Nested Vectored Interrupt Controller (NVIC) – 42 interrupt channels with eight priority levels

 256 KB single-cycle Flash  64 KB single-cycle SRAM  Four general-purpose 32-bit timers  Integrated Ethernet MAC and PHY  Three fully programmable 16C550-type UARTs  Four 10-bit channels (inputs) when used as single-ended inputs

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Texas Instruments Stellaris LM3S6965 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual