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Stellaris LM3S2965
User Manual
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Texas Instruments Stellaris LM3S2965 User Manual

Stellaris® LM3S2965 Evaluation Board
User’s Manual
EK-LM3S2965-08 Copyright © 2007–2010 Texas Instruments
Copyright
Copyright © 2007–2010 Texas Instruments, Inc. All rights reserved. Stellaris and StellarisWare are registered trademarks of 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, Suite 350 Austin, TX 78746 http://www.ti.com/stellaris
2 January 6, 2010
Stellaris® LM3S2965 Evaluation Board
Table of Contents
Chapter 1: Stellaris® LM3S2965 Evaluation Board ....................................................................................... 7
Features..............................................................................................................................................................8
Block Diagram ....................................................................................................................................................9
Evaluation Kit Contents ....................................................................................................................................10
Evaluation Board Specifications ...................................................................................................................10
CAN Device Board Specifications................................................................................................................. 10
Features of the LM3S2965 Microcontroller.......................................................................................................10
Chapter 2: Hardware Description.................................................................................................................. 13
LM3S2965 Evaluation Board..... ... ... .... ... ... ... .... ................................................................................................ 13
LM3S2965 Microcontroller Overview........ .... ... ... ... ... .... ... .................................................... ... ... ... ................13
CAN Module........................... ... ... .... ... ................................................ .... ... ... ... ... .... ... ...................................13
Clocking........................................................................................................................................................ 13
Reset.............................................................................................................................................................13
Power Supplies.............................................................................................................................................14
Debugging.....................................................................................................................................................14
USB Functions.............................. ... .... ... ... ... .... ... ... ... ... ....................................................................................15
USB Overview........................... ... .................................................... ............................................................. 15
USB to JTAG/SWD............. ... ... ... .... ... ... .................................................... ................................................... 15
Virtual COM Port........................................................................................................................................... 15
Serial Wire Out..............................................................................................................................................15
Organic LED Display ........................................................................................................................................ 15
Features........................................................................................................................................................ 15
Control Interface ...........................................................................................................................................16
Power Supply................................................................................................................................................ 16
Design Guidelines............................................... .................................................... ......................................16
Further Reference.........................................................................................................................................16
Other Peripherals............. ... .................................................... ..........................................................................16
Speaker.........................................................................................................................................................16
Push Switches ............. ... .... ... ... .................................................... ................................................................ 16
User LED ............... ................................................ ... .... ... ... ... .... ... ... ............................................................. 16
Bypassing Peripherals............................................................... .... ...................................................................16
Interfacing to the EVB....................................................................................................................................... 17
Using the In-Circuit Debugger Interface ...........................................................................................................17
Chapter 3: CAN Device Board Hardware Description................................................................................. 19
Device Overview...............................................................................................................................................19
Power Supply................................................................................................................................................ 19
Programming and Debugging................... .... ... ... ... ... .... ... ... ... .... ...................................................................19
Interfacing..................................................................................................................................................... 19
Appendix A: Schematics................................................................................................................................21
Appendix B: Connection Details...................................................................................................................27
Component Locations.......................................................................................................................................27
Evaluation Board Dimensions...........................................................................................................................28
January 6, 2010 3
I/O Breakout Pads ............................................................................................................................................29
Recommended Connectors.............................................................. ... .............................................................30
ARM Target Pinout ........................................................................................................................................... 31
References .......................................................................................................................................................31
4 January 6, 2010
Stellaris® LM3S2965 Evaluation Board
List of Figures
Figure 1-1. Stellaris LM3S2965 Evaluation Board Layout.................................................................................7
Figure 1-2. Stellaris LM3S2110 CAN Device Board..........................................................................................8
Figure 1-3. LM3S2965 Evaluation Board Block Diagram.................................................................................. 9
Figure 1-4. LM3S2110 CAN Device Board Block Diagram ...............................................................................9
Figure 2-1. ICD Interface Mode ....................................................................................................................... 18
Figure B-1. Component Locations ...................................................................................................................27
Figure B-2. LM3S2965 Evaluation Board Dimensions..................................... ... ... .... ......................................28
Figure B-3. LM3S2110 CAN Device Board Dimensions..................................................................................28
Figure B-4. LM3S2110 CAN Device Board Connections.................................................................................30
January 6, 2010 5
List of Tables
Table 2-1. Stellaris LM3S2965 Evaluation Board Hardware Debugging Configurations ... .... ... ... ...... .... ... ... ... 14
Table 2-2. Isolating On-Board Hardware........................................................................................................17
Table B-1. I/O Breakout Pads.........................................................................................................................29
Table B-2. Recommended Connectors................. ... ... .... ... .................................................... ... ... ... ... .............30
Table B-3. 20-Pin JTAG/SWD Configuration..................................................................................................31
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USB Device
Interface
CAN bus connector
40 pin I/O
break-out
header
34 pin I/O break-out header
Navigation
Switches
Select sw itc h
St at us LED
Speaker
Debug- out LED
Reset switch
Power LED
OLED Graphic s
Display
JTAG/SWD
input and
output
Stellaris®
LM3S2965
Microcontroller
In-circuit Debug Interface
CHAPTER 1
Stellaris® LM3S2965 Evaluation Board
The Stellaris® LM3S2965 Evaluation Board is a compact and versatile evaluation platform for the Stellaris LM3S296 5 ARM® Cortex™-M3-based microcontroller. The evaluation kit demonstrates a complete controller area network (CAN) using two Stellaris microcontrollers. The main evaluation board (EVB) configures a Stellaris LM3S2965 microcontroller as a CAN host. A small CAN device board, linked with a ribbon cable, uses a Stellaris LM3S2110 microcontroller. The function of each board is fully configurable in software.
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 for programming or debugging of an external target. The kit is also comp atible with high-perfo rmance external JTAG debuggers.
This evaluation kit enables quick evaluation, prototype development, and creation of application­specific designs for CAN. The kit also includes extensive source-code examples, allowing you to start building C code applications quickly.
Figure 1-1. Stellaris LM3S2965 Evaluation Board Layou t
January 6, 2010 7
Stellaris® LM3S2965 Evaluation Board
User switches
CAN bus c onnector
I/O break-out headers
Power LED
Reset switch
St at us LED
JTAG/SWD
input
Stellaris®
LM3S2110
Microcontroller
Figure 1-2. Stellaris LM3S2110 CAN Device Board
Features
The Stellaris LM3S2965 Evaluation Kit includes the following features:
Stellaris LM3S2965 microcontroller with fully-integrated CAN moduleStandalone CAN device board using Stellaris LM3S2110 microcontrollerSimple setup; USB cable provides serial communication, debugging, and powerOLED graphics display with 128 x 96 pixel resolutionUser LED, navigation switches, and select pushbuttonsMagnetic speakerLM3S2965 I/O available on labeled break-out padsStandard ARM® 20-pin JTAG debug connector with input and output modesUSB interface for debugging and power supply
8 January 6, 2010
Block Diagram
USB
USB
Stellaris
LM3S2965
Microcontroller
Dual USB
Device
Controller
I
/
O
S
i
g
n
a
l
s
OLED Display
128 x 96
Debug
I/O Signal Break-out
JTAG/SWD
Output/Input
USB Cable
Reset
+3.3V
Regulator
SWD/JTAG
Mux
UART0
T
a
r
g
e
t
C
a
b
l
e
CAN PHY CAN0CAN
Switch
Nav
Switch
Speaker
LED
LM3S2965 CAN
Evaluation Board
I/O Signal Break-out
I/O Signal Break-out
I/O Si gnal Br eak-out
USB
Stellaris
LM3S2110
Microcontroll er
I/O Signals
Debug
I/O Signal Break-out
I/O Si gn al Br eak-out
JTAG/SWD Input
+3.3V
Regulator
CAN PHY CAN0CAN
Switch
LED
LM3S2110
CAN Device
Board
Reset
Switch
Figure 1-3. LM3S2965 Evaluation Board Block Diagram
Stellaris® LM3S2965 Evaluation Board
Figure 1-4. LM3S2110 CAN Device Board Block Diagram
January 6, 2010 9
Stellaris® LM3S2965 Evaluation Board
Evaluation Kit Contents
The evaluation kit contains everything needed to develop and run applications for S tellaris microcontrollers including:
LM3S2965 evaluation board (EVB)LM3S2110 CAN device boardUSB cable20-pin JTAG/SWD target cable10-pin CAN cableCD 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 – 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 connectorBoar d su pp ly curre nt : 120 mA typ (fully active, CPU at 50 MHz)
200 mA (fully active, with sound)
Break-out power output: 3.3 Vdc (60 mA max), 12 Vdc (15 mA max)Dimensions: 4.1” x 2.45” x 0.7” (LxWxH)
CAN Device Board Specifications
Board supply voltage: 4.0-5.0 Vdc from CAN connectorBoar d su pp ly curre nt : 40 mA typicalDimensions: 2.45” x 1.60” (LxW)
Features of the LM3S2965 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) – 27 interrupt channels with eight priority levels
10 January 6, 2010
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