LUMINARY MICRO LM3S6965 User Manual

Stellaris® LM3S6965

Evaluation Board

USER’S MANUAL

EK-LM3S6965-05 Copyright © 2007-2008 Luminary Micro, Inc.

Legal Disclaimers and Trademark Information

INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH LUMINARY MICRO PRODUCTS. NO LICENSE,
EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS
DOCUMENT. EXCEPT AS PROVIDED IN LUMINARY MICRO’S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS,
LUMINARY MICRO ASSUMES NO LIABILITY WHATSOEVER, AND LUMINARY MICRO DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY, RELATING TO SALE AND/OR USE OF LUMINARY MICRO’S PRODUCTS INCLUD ING LIABILITY OR WARRANTIES
RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT
OR OTHER INTELLECTUAL PROPERTY RIGHT. LUMINARY MICRO’S PRODUCTS ARE NOT INTENDED FOR USE IN MEDICAL,
LIFE SAVING, OR LIFE-SUSTAINING APPLICATIONS.

Luminary Micro may make changes to specifications and product descriptions at any time, without notice. Contact your local Luminary Micro
sales office or your distributor to obtain the latest specifications before placing your product order.

Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Luminary Micro
reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to
them.

Copyright © 2007–2008 Luminary Micro, Inc. All rights reserved. Stellaris, Luminary Micro, and the Luminary Micro logo are registered
trademarks of Luminary Micro, Inc. or its subsidiaries in the United States and other countries. 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.

Luminary Micro, Inc.
108 Wild Basin, Suite 350
Austin, TX 78746
Main: [phone]
Fax: [phone]
http://www.luminarymicro.com

2 October 28, 2008

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

Appendix C: Contact Information ................................................................................................................. 29

October 28, 2008 3

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 A-1. LM3S6965 Microcontroller (sheet 1 of 3) ......................................................................................18

Figure A-2. LM3S6965 Microcontroller (sheet 2 of 3) ......................................................................................19

Figure A-3. LM3S6965 Microcontroller (sheet 3 of 3) ......................................................................................20

Figure A-4. PLD schematic ..............................................................................................................................21

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

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

4 October 28, 2008

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

October 28, 2008 5

6 October 28, 2008

P

l

a

c

e

hol

de

r

I

m

a

ge

86%'HYLFH
,QWHUIDFH

EDVH7(WKHUQHW-DFN

PLFUR6'&DUG0HPRU\6ORW

SLQ,2

EUHDNRXW

KHDGHU

SLQ,2
EUHDNRXW
KHDGHU

1DYLJDWLRQ

6ZLWFKHV

6HOHFWVZLWFK

6WDWXV/('

6SHDNHU

'HEXJRXW/('

5HVHWVZLWFK

3RZHU/('

2/('*UDSKLFV

'LVSOD\

-7$*6:'
LQSXWDQG

RXWSXW

6WHOODULV

70

/06

0LFURFRQWUROOHU

,QFLUFXLW'HEXJ
,QWHUIDFH

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

October 28, 2008 7

Stellaris® LM3S6965 Evaluation Board

USB

USB

Stellaris

LM3S6965

Microcontroller

Dual
USB

Device

Controller

I

/

O

S

i

g

n

a

l

s

OLED Display

128 x 96

Debug

Nav

Switch

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

T

a

r

g

e

t

C

a

b

l

e

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

8 October 28, 2008

Evaluation Kit Contents

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

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

– A supported, evaluation version of one of the following:

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

• IAR Embedded Workbench® development tools

• Code Sourcery GCC development tools

• Code Red Technolog ies development tools

– Complete documentation
– Quickstart guide
– Quickstart source code

Stellaris® LM3S6965 Evaluation Board

– 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
 Two independent integrated analog comparators

October 28, 2008 9

Stellaris® LM3S6965 Evaluation Board

 Two I2C modules
 Three PWM generator blocks

– One 16-bit counter
– Two comparat or s
– Produces two independent PWM signals
– One dead-band generator

 Two QEI modules with position integrator for tracking encoder position
 0 to 42 GPIOs, depending on user configuration
 On-chip low drop-out (LDO) voltage regulator

10 October 28, 2008

CHAPTER 2

Hardware Description

In addition to a microcontroller, the Stellaris LM3S6965 evaluation board includes a range of useful
peripherals and an integrated ICDI. This chapter describes how these peripherals operate and
interface to the MCU.

LM3S6965 Microcontroller

Device Overview

The heart of the EVB is a Stellaris LM3S6965 ARM Cortex-M3-based microcontroller. The
LM3S6965 offers 256 KB Flash memory, 50-MHz operation, an Ethernet controller, and a wide
range of peripherals. Refer to the LM3S6965 data sheet (order number DS-LM3S6965) for
complete device details.

The LM3S6965 microcontroller is factory programmed with a quickstart demo program. The
quickstart program resides in the LM3S6965 on-chip Fl ash memory and runs each time power is
applied, unless the quickstart has been replaced with a user progr am.

Ethernet

A key feature of the LM3S6965 microcontroller is its fully integrated Ethernet controller. Only a
RJ45 jack with integrated magnetics and a few passive components are needed to complete the
10/100baseT interface. The RJ45 jack incorporates LEDs that indicate traffic and link status.
These are automatically managed by on-chip microcontroller hardware. Alternatively, the LEDs
can be software controlled by configuring those pins as general-purpose outputs.

Clocking

Reset

The LM3S6965 supports automatic MDI/MDI-X so the EVB can connect directly to a network or to
another Ethernet device without requiring a cross-over cable.

The LM3S6965 microcontroller has four on-chip oscillators, three are implemented on the EVB. A

8.0-MHz crystal completes the LM3S6965’s main internal clock circuit. An intern al PLL, configured
in software, multiples this clock to 50-MHz for core and peripheral timing.

A small, 25-MHz crystal is used by the LM3S6965 microcontroller for Ethernet physical layer
timing and is independent of the main oscillator.

The LM3S6965 microcontroller shares its external reset input with the OLED display. In the EVB,
reset sources are gated through the CPLD, though in a typical application a simple wired-OR
arrangement is sufficient.

Reset is asserted (active low) under any one of three conditions:

 Power-on reset
 Reset push switch SW1 held down
 Internal debug mode—By the USB device controller (U4 FT2232) when instructed by

debugger

October 28, 2008 11

Hardware Description

Power Supplies

The LM3S6965 is powered from a +3.3-V supply. A low drop-out (LDO) regulator regulates +5-V
power from the USB cable to +3.3-V. +3.3-V power is available for powering external circuits.

A +15-V rail is available when the OLED display is active. The speaker and OLED display
boost-converter operate directly from the +5-V rail.

Debugging

Stellaris microcontrollers support programming and debugging using either JTAG or SWD. JTAG
uses the signals TCK, TMS, TDI, and TDO. SWD requires fewer signals (SWCLK, SWDIO, and,
optionally, SWO, for trace). The debugger determines which debug protocol is used.

Debugging Modes

The LM3S6965 evaluation board supports a range of hardware debugging configurations.
Table 2-1 summarizes these configurations.

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

Mode Debug Function Use Selected by

1 Internal ICDI Debug on-board LM3S6965

2 ICDI out to JTAG/SWD

header

3 In from JTAG/SWD header For users who prefer an

Modes 2 and 3 automatically detect the presence of an exter nal deb ug cable . When the d ebugg er
software is connected to the EVB's USB controller, the EVB automatically selects Mode 2 and
illuminates the red Debug Out LED.

Debug In Considerations

Debug Mode 3 supports evaluation boa rd debug ging using an external d ebug interface. Mode 3 is
automatically selected when a device such as a Segger J-Link or Keil ULINK is connected.

Boards marked Revision D or later automatically configure pin 1 to be a 3.3-V reference, if an
external debugger is connected. To determine the revision of your board, locate the product
number on the bottom of the board; for example, EK-LM3S6965-D. The last character of the
product number identifies the board revision.

microcontroller over USB
interface.

The EVB is used as a USB to
SWD/JTAG interface to an
external target.

external debug interface
(ULINK, JLINK, etc.) with the
EVB.

Default mode

Connecting to an external
target and starting debug
software. The red Debug Out
LED will be ON.

Connecting an external
debugger to the JTAG/SWD
header.

A configuration or board-level change may be necessary when using an external debug interface
with revisions A through C of this evaluation board. Because the evaluation board supports both
debug out and debug in modes, pin 1 of the 20-pin JTAG/SWD header is, by default, not
connected to +3.3 V. Consequently, devices requiring a voltage on pin 1 to power their line buf f ers
may not work.

Two solutions exist. Some debugger interfaces (such as ULINK) have an internal power jumper
that, in this case, should be set to internal +3.3-V power. Refer to debugger interface

12 October 28, 2008

documentation for full details. However, if your debugger interface does not have a selectable
power source, it may be necessary to inst a ll a 0-Ω re sistor on th e e v aluatio n b oar d to route p ower
to pin 1. Refer to the schematics and board drawing in the appendix of this manual for the location
of this resistor.

USB Device Controller Functions

Device Overview

An FT2232 device from Future Technology Devices International Ltd manages USB-to-serial
conversion. The FT2232 is factory configured by Luminary Micro to implement a JTAG/SWD port
(synchronous serial) on channel A and a Virtual COM Port (VCP) on channel B. This feature
allows two simultaneous communications links between the host computer and the target device
using a single USB cable. Separate Windows drivers for each function are provided on the
Documentation and Software CD.

A small serial EEPROM holds the FT2232 configuration data. The EEPROM is not accessible by
the LM3S6965 microcontroller.

For full details on FT2232 operation, go to www.ftdichip.com.

USB to JTAG/SWD

Stellaris® LM3S6965 Evaluation Board

The FT2232 USB device performs JT AG/SWD serial operations under th e control of the debugger.
A CPLD (U2) multiplexes SWD and JTAG functions and, when working in SWD mode, provides
direction control for the bidirectional data line.

Virtual COM Port

The Virtual COM Port (VCP) allows Windows applications (such as HyperTerminal) to
communicate with UART0 on the LM3S6965 over USB. Once the FT2232 VCP driver is installed,
Windows assigns a COM port number to the VCP channel.

Serial Wire Out

The evaluation board supports the Cortex-M3 serial-wire output (SWO) trace capabilities. Under
debugger control, the CPLD can route the SWO datastream to the virtual communication port
(VCP) transmit channel. The debugger can then decode and interpret the trace information
received from the VCP. The normal VCP connection to UART0 is interrupted when using SWO. Not
all debuggers support SWO. Refer to the S tellaris LM 3S3748 dat a sheet for additional infor mation
on the trace port interface unit (TPIU).

Organic LED Display

The EVB features an organic LED (OLED) graphics display with 128 x 96 pixel resolution. OLED is
a new technology that offers many advantages over LCD display technology.

Features

 RiT P14201 series display
 128 colu mn s by 96 row s
 High-contrast (typ. 500:1)
 Excellent brightness (120 cd/m
 Fast 10 us response

October 28, 2008 13

2

)

Hardware Description

Control Interface

The OLED display has a built-in controller IC with synchronous serial and parallel interfaces.
Synchronous serial (SSI) is used on the EVB as it requires fewer microcontroller pins. Data cannot
be read from the OLED controller; only one data line is necessary. Note that the SSI port is shared
with the microSD card slot. The Stellaris® Firmware Development Package (included on the
Documentation and Software CD) contains complete drivers with source-code for the OLED
display.

Power Supply

A +15-V supply is needed to bias the OLED display. A FAN5331 device from Fairchild combines
with a few external components to complete a boost converter. When the OLED display is
operating, a small amount of power can be drawn from the +15-V rail to power other devices.

Design Guidelines

The OLED display has a lifetime of about 13,000 hours. It is also prone to degradation due to
burn-in, similar to CRT and plasma displays. The quickstart application includes both a screen
saver and a power-down mode to extend display life. These factors should be considered when
developing EVB applications that use the OLED display.

When using the EVB as an in-circuit debug interface (ICDI), the OLED display is held in reset to
reduce power consumption and eliminate display wear-out.

Further Reference

For additional information on the RiT OLED display, visit www.ritekdisplay.com.

Other Peripherals

Speaker

A small, magnetic audio transducer connects through a MOSFET to PD1/PWM1, allowing a range
of options for generating simple and complex tones. Use of the +5-V rail reduces switching noise
on the +3.3-V rail.

MicroSD Card Slot

Removable Flash cards are an ideal media for storing data such as web p age content. Th e source
code on the CD includes example code for reading data from standard FAT formatted SD cards.
All data and control transactions use the SD card’s SPI mode. Note that the SD card specification
does not require that a card supports the SPI mode, but most cards do so in practice. Cards from
several vendors have been used with the EVB.

MicroSD cards are very small and require careful handling. the SD card slot on the EVB is a push­push type (push to insert; push again to eject).

Note: To avoid damage, remove power before inserting or removing cards.The EVB does not
implement SD card power control.

Push Switches

The EVB has five general-purpose input switches. Four are arranged in a navigation-style
configuration. The fifth functions as a Select switch.

14 October 28, 2008

User LED

A user LED (LED3) is provided for general use. The LED is connected to PC5/CCP1, allowing the
option of either GPIO or PWM control (brightness control). Refer to the Quickstart Application
source code for an example of PWM control.

Bypassing Peripherals

Excluding Ethernet, the EVB’s on-board peripheral circuits require 16 GPIO lines. Two additional
GPIO lines are assigned to Ethernet LEDs. Th is leaves 20 GPIO lines and 4 ADC channels
immediately available for connection to external circuits. If an application requires more GPIO
lines, the on-board hardware can be disconnected. The EVB is populated with 16 jumper links,
which can be cut with a knife to isolate on-board hardware. The pro cess can be reversed by
installing 0603- 0-ohm chip resistors.

Important: The quickstart application will not run if one or more jumpers are removed.
Table 2-2. Isolating On-Board Hardware

MCU Pin EVB Function To Isolate, Remove...

Pin 26 PA0/U0RX Virtual COM port receive JP1
Pin 27 PA1/U0TX Virtual COM port transmit JP2

Stellaris® LM3S6965 Evaluation Board

Pin 10 PD0/IDX0 SD card chip select JP3
Pin 11 PD1/PWM1 Sound JP4
Pin 30 PA4/SSI0RX SD card data out JP5
Pin 31 PA5/SSI0TX SD card and OLED display data in JP6
Pin 28 PA2/SSI0CLK SD card and OLED display clock JP7
Pin 22 PC7/PHB0 OLED display data/control select JP8
Pin 29 PA3/SSI0FSS OLED display chip select JP9
Pin 73 PE1/PWM5 Down switch JP10
Pin 74 PE2/PHB1 Left switch JP11
Pin 72 PE0/PWM4 Up switch JP12
Pin 75 PE3/PHA1 Right switch JP13
Pin 61 PF1/IDX1 Select switch JP14
Pin 47 PF0/PWM0 User LED JP15
Pin 23 PC6/CCP3 Enable +15 V JP16

Interfacing to the EVB

An array of accessible I/O signals makes it easy to interface the EVB to external circuits. All
LM3S6965 I/O lines (except those with both JTAG and SWD functions) are brought out to 0.1”
pitch pads. For quick reference, silk-screened labels on the PCB show primary pin functions.

Table B-1 on page 25 has a complete list of I/O signals as well as recommended connectors.

October 28, 2008 15

Hardware Description

Evaluation Board

Target

Board

Stellaris

MCU

Target

Cable

`

USB

PC with IDE/
debugger

Stellaris

MCU

TC K/SWC LK by pas s es t he
on- board m ic roc ont roller

JT AG or SWD c onnec t s t o t he
ext ernal m icroc on troller

Connec t ing Pin 18 t o GN D s ets

ext ernal debug m ode

Most LM3S6965 I/O signals are +5-V tolerant. Refer to the LM3S6965 data sheet for detailed
electrical specifications.

Using the In-Circuit Debugger Interface

The Stellaris LM3S6965 Evaluation Kit can operate as an In-Circuit Debugger Interface (ICDI).
ICDI acts as a USB to the JTAG/SWD adaptor, allowing debugging of any external target board
that uses a Stellaris microcontroller. See “Debugging Modes” on page 12 for a description of how
to enter Debug Out mode.

Figure 2-1. ICD Interface Mode

The debug interface operates in either Serial-Wire Debug (SWD) or full JTAG mode, depending on
the configuration in the debugger IDE.

The IDE/debugger does not distinguish between the on-EVB Stellaris microcontroller and an
external Stellaris microcontroller. The only requirement is that the correct Stellaris device is
selected in the project configuration.

16 October 28, 2008

APPENDIX A

Schematics

Schematics for the Stellaris LM3S6965 Evaluation Board follow.

October 28, 2008 17

1

2

3

4

5

6

PD4/CCP0

C17

4.7UF

C6
10pF

PD6/FAULT
ADC1

ADC3
PD0/IDX0
PD2/U1RX
PG1/U2TX
PC7/PhB0
PC5/C1+/C0o

PA1/U0Tx
PA3/SSI0FSS
PA5/SSI0TX
PA7/I2CSDA

R4
330

C3

0.1UF

C4

0.1UF
R5
330

4

+3.3V

Stellaris Microcontroller

A A

PA0/U0Rx
PA1/U0Tx
PA2/SSI0CLK
PA3/SSI0FSS
PA4/SSI0RX
PA5/SSI0TX
PA6/I2CSCL
PA7/I2CSDA

INT_TCK

TMS/SWDIO

PC2/TDI

PC3/TDO

B B

TMS/SWDIO
PC2/TDI
PC3/TDO
PC4/PhA0
PC5/C1+/C0o
PC6/CCP3
PC7/PhB0

PE0/PWM4
PE1/PWM5
PE2/PhB1
PE3/PhA1

ADC0
ADC1
ADC2
ADC3

PG0/U2RX
PG1/U2TX

MCURSTn

C41
18PF

OSC32IN
OSC32OUT

Y1

1 2

25.00MHz

C C

C8
18PF

C9
18PF

1 2

C40
18PF

Y3

8.00MHz

D D

1

2

26
27
28
29
30
31
34
35

80
79
78
77
25
24
23
22

72
73
74
75

1
2
5
6

19
18

64
17

16
48

49
52

53
50

51
65
76

9
15
21
33
39
42

45
54
57
63
69
82
85
86
87
94

4
97

U1

LM3S6965

PA0/U0RX
PA1/U0TX
PA2/SSI0CLK
PA3/SSI0FSS
PA4/SSI0RX
PA5/SSI0TX
PA6/I2C1SCL
PA7/I2C1SDA

PC0/TCK/SWCLK
PC1/TMS/SWDIO
PC2/TDI
PC3/TDO/SWO
PC4/PhA0
PC5/C1+/C0o
PC6/CCP3
PC7/PhB0

PE0/PWM4
PE1/PWM5
PE2/PhB1
PE3/PhA1

ADC0
ADC1
ADC2
ADC3

PG0/U2RX
PG1/U2TX

RST
XTALNPHY

XTALPPHY
MOSCin

MOSCout
XOSC0

XOSC1
WAKE

HIB
CMOD0
CMOD1

GND
GND
GND
GND
GND
GND

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
AGND
AGND

PB0/PWM2
PB1/PWM3

PB2/I2C0SCL

PB3/I2C0SDA

PB4/C0­PB5/C1-

PB6/C0+

PB7/TRST
PD0/IDX0

PD1/PWM1

PD2/U1RX
PD3/U1TX

PD4/CCP0
PD5/CCP2

PD6/FAULT

PD7/CCP1

PF0/PWM0

PF1/IDX1
PF2/LED1
PF3/LED0

MDIO

TXOP

TXON

RXIP

RXIN

AVDD
AVDD

VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33
VDD33

VBAT

LDO

VDD25
VDD25
VDD25
VDD25

ERBIAS

PB0/PWM2

66
67
70
71
92
91
90
89

10
11
12
13
95
96
99
100

47
61
60
59

58

PB1/PWM3
PB2/I2C0SCL
PB3/I2CSDA
PB4/C0­PB5/C1­PB6/C0+

PD0/IDX0
PD1/PWM1
PD2/U1RX
PD3/U1TX
PD4/CCP0
PD5/CCP2
PD6/FAULT
PD7/CCP1

PF0/PWM0
PF1/IDX1
PF2/LED1
PF3/LED0

+3.3V

R33
10K

PB7/TRST

+3.3V

+3.3V

R1
10K

R2

49.9

43

46
40

37

R6

+3.3V

C12

0.1UF

C13

0.01UF

49.9R749.9

C14

0.01UF

3
98

8
20
32
36
44
56
68
81
83
84
93

+3.3V

55
7

C18

14
38
62
88

R35

41

12.4K

12.4K 1% resistor required on Pin 41 for
compatibility with future LM3S6965 revisions.
See Product Change Notification.

0.01UF

C19

0.1UF

3

R3

49.9

C7

0.01UF

C15

0.1UF

C20

4.7UF

C1
10pFC210pF

C5
10pF

+3.3V

C16

0.1UF

3334 3635

12

PB4/C0­PD5/CCP2
PD7/CCP1
ADC0
ADC2

PD1/PWM1
PD3/U1TX
PG0/U2RX
PC6/CCP3
PC4/PhA0
PA0/U0Rx
PA2/SSI0CLK
PA4/SSI0RX
PA6/I2CSCL

+5V

+15V

PB5/C1- PB6/C0+
PB7/TRST PC2/TDI
PC3/TDO PE3/PhA1
PE2/PhB1
PE0/PWM4 PE1/PWM5
PB2/I2C0SCL PB3/I2CSDA
PB1/PWM3
PF1/IDX1 PB0/PWM2
PF3/LED0 PF2/LED1

59 60

PF0/PWM0

I/O Break -out Headers

P4

+3.3V

G+

12

G-

11

1CT:1

3

+3.3V

5
4

1CT:1

7

+3.3V

6
8

+3.3V

2

Y-

1

Y+

9

NC

10

GND

J3011G21DNL

History

Revision Date Description

A 5/12/07 First Production Release
B 6/29/07 Improve SWD out feature, add SWO support, 1-bit

C 8/09/07 Change to RiT 128x96 OLED display

Ethernet 10/100baseT

TX+

1

TX-

2

RX+

3
4
5

RX-

6
7
8

GL

GR

OLED display option.

Install R271/25/08
Add R35 for future compatibility.3/25/08D

Tie R6/R7 to +3.3V. Add TVCC control.

5

OSC32OUT
OSC32IN

+3.3V

On-board Peripheral Signals

Jumpers can be cut to
free GPIO lines as required.

PA0/U0Rx

PA1/U0Tx

PA2/SSI0CLK

PA3/SSI0FSS

PA4/SSI0RX

PA5/SSI0TX

PF0/PWM0

PF1/IDX1

PE0/PWM4

PE1/PWM5

PE2/PhB1

PE3/PhA1

PD1/PWM1

PD0/IDX0

PC7/PhB0

PC6/CCP3

Drawing Title:

Page Title:

Size

B

3/26/2008 1 3

JP1

VCP_RX

JP2

VCP_TX

JP7

SSICLK

JP9

OLEDCSn

JP5

JP6

JP15

JP14

SELECT_SWn

JP12

UP_SWn

JP10

DOWN_SWn

JP11

LEFT_SWn

JP13

RIGHT_SWn

JP4

SOUND

JP3

CARDCSn

JP8

OLEDDC

JP16

EN+15V

Ethernet Evaluation Board
LM3S6965 Micro and 10/100 Ethernet

Document Number:

1

6

SSIRX

SSITX

LED

of

RevSheetDate:

D

1

A A

+5V

R9

2.2

BZ1

D1
MBR0520

SOUND

R12
10K

B B

1
2

NFT-03A

Q1
NDS331N

Speaker Circuit

+3.3V

1

+3.3V

C28

0.1UF

+3.3V

+3.3V

R17

P3

10K

1
2
3
4

2908-05WB-MG

5
6
7
8

R19
10K

9

101112

microSD Card Slot

C C

CARDCSn

SSITX

SSICLK

SSIRX

D D

2

+5V

C24

4.7UF

EN+15V

R10
10K

3

D2

MBR0520

U7

5

VIN

SHDNn4GND

FAN5331

L1
NR4018T100M

10uH

SW

1

3

FB

2

+15V 50mA Pow e r S u pp l y for OLED Display

R13
200K

R11

17.8K

C27
120pF

4

+15V

C22

C25

4.7UF

0.1UF

5

OLEDCSn
MCURSTn

OLEDDC

SSICLK

SSITX

+3.3V

+3.3V

C23

0.1UF

C26

4.7UF

R14
200K

+15V

C21

0.1UF

U2

1

NC

2

VCIR

3

VCOMH

4

LVSS

5

VSS

6

BS1

7

BS2

8

IREF

9

CSn

10

RESn

11

D/Cn

12

R/Wn

13

E

14

D0/SCLK

15

D1/SDIN

16

D2

17

D3

18

D4

19

D5

20

D6

21

D7

22

VDDIO

23

VDD

24

VCC

25

NC

OLED-RIT-128X96
RGS13128096WH000

6

128x96 OLED Graphics Display

+3.3V

Reset

SW1

SW-B3S1000

Select

SW2

SW-B3S1000

Up

SW3

SW-B3S1000

Down

SW4

SW-B3S1000

Left

SW5

SW-B3S1000

Right

SW6

SW-B3S1000

User Switches

2

3

R15
10K

C30
OMIT

RESET_SWn

SELECT_SWn

UP_SWn

DOWN_SWn

LEFT_SWn

RIGHT_SWn

+3.3V

R16
330

R18
330

R20
330

LED2
Green

LED3
Red

LED4
Green

Status

Debug Out

Power

LED

DBGOUTLED

Status LEDs

Drawing Title:

Ethernet Evaluation Board

Page Title:

OLED Display, Switches and Audio

Document Number:

Size

B

3/26/2008 2 3

4

5

2

6

RevSheetDate:

of

D

1

USB Interface

54819-0519

FB1

P1

5V D- D+ ID G

6

123

U5

8

VCC

7

NC

6

ORG

5

GND

CAT93C46

1K 64X16

C32

0.01UF

CS
SK
DI

DO

USBSH

475

R21 27
R22 27

+5V+5V

R24
10K

1
2
3
4

1 2

6.00MHz
C10
18PF

R25

1.5K

Y2

C11
18PF

USB+5V

A A

USB+5V

60ohm @ 100 MHz

B B

C C

Omit

JP18

JP17

2

USB Device Controller

U4

R23

1.5K

+5V

C31

6

0.1UF

8
7

48

1
2

47
43

44

4
5

9

18
25
34

45

Channel A : JTAG / SW Debug
Channel B : Virtual Com Port

3V3OUT

USBDM
USBDP

EECS
EESK
EEDATA
TEST

XTIN
XTOUT

RESET#
RSTOUT#

GND
GND
GND
GND

AGND

FT2232D

ADBUS0
ADBUS1
ADBUS2
ADBUS3
ADBUS4
ADBUS5
ADBUS6
ADBUS7

ACBUS0
ACBUS1
ACBUS2
ACBUS3

BDBUS0
BDBUS1
BDBUS2
BDBUS3
BDBUS4
BDBUS5
BDBUS6
BDBUS7

BCBUS0
BCBUS1
BCBUS2
BCBUS3

PWREN#

VCCIOA
VCCIOB

USB +5V to +3.3V 500mA Power Supply

U6

C38

4.7UF

1
6

VIN1
VIN2

VOUT

SENSE

NC

SI/WUA

SI/WUB

VCC
VCC

AVCC

4
5

3

3

+3.3V

R8

4.7K

TCK

24

TDI/DI

23
22

TDO/DO

21

TMS/OUTEN

20

SRSTN

19
17

DBG_JTAG_EN

16
15

13
12
11
10

+3.3V

40
39
38
37
36
35
33
32

30
29
28
27
26

41

3
42
14
31

46

C37

0.1UF

SWO_EN

+3.3V

R30
330

+3.3V+5V

C39

4.7UF

VCP_RX

C33

0.1UF

INT_TCK

RESET_SWn

+3.3v

C34

0.1UF

C35

0.1UF

4

Debug Interface Logic

+3.3V

C29

0.1UF

+3.3V

R34

4.7K

C42

0.1UF

MODE
VCP_TX_SWO

+5V

C36

0.1UF

13

GND

44

A0/GOE0

45

A1

46

A2

47

A3

48

A4

2

A5

3

A6

4

A7

7

A8

8

A9

9

A10

10

A11

14

A12

MODE is reserved

for future use.

37

19

43

GND

CLK1/I18CLK2/I

1

25

11

TDI

TMS

TCK

CLK3/I42CLK0/I

Bank 0 Bank 1

GND (Bank 0)5VCCO (Bank 0)

A1315A1416A15

17

6

+3.3V

PC2/TDI

TMS/SWDIO

TCK/SWCLK

PC3/TDO

GND (Bank 1)29VCCO (Bank 1)

30

TCK/SWCLK

PC3/TDO

41

PC2/TDI

TMS/SWDIO

5

+3.3V

12

VCC

TDO35VCC

B1339B1440B15/GOE1

36

B0
B1
B2
B3
B4
B5
B6
B7
B8

B9
B10
B11
B12

U3
LC4032V-75TN48C

20
21
22
23
24
26
27
28
31
32
33
34
38

R27
27

R26
27

R28
27

R29
27

R31
27

PLD_TCK
PLD_TMS
PLD_TDI
PLD_TDO

+3.3V

PC2/TDI

PC3/TDO
TARGETCABLEn

TMS/SWDIO
TCK/SWCLK

TP1
TP2
TP3

PLD JTAG TEST POINTS

TP4
TP5
TP6

DBGOUTLED

VCP_TX

PB7/TRST
MCURSTn

XVCC
XTDI

XTMS
XTCK

XTDO

TARGETCABLEn

6

JTAG/SWD Interface
Input/Output

P2

1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20

Header 10X2

R32

4.7K

+3.3v

2

D D

1

2

GND

LP8345ILD-3.3

GND

7

Drawing Title:

Ethernet Evaluation Board

Page Title:

USB, Debugger Interfaces and Power

Document Number:

Size

B

3/26/2008 3 3

3

4

5

3

6

RevSheetDate:

of

D

A B C D E F G H

1

VCP_TX

SWO_EN

2

FTDI_TCK XTCK

FTDI_TDI_DO U0TX

3

FTDI_TDO_DI

I90

34
10
45

46

47

I3

I91
I7

I6

I89

A
B

S

S

I18

FTDI_TMS

48

I4

4

FTDI_DBG

FTDIJTAGEN

5

FTDI_SRSTn

4

I5

3

I37

I9

DQ

B
A

FTDI_DBG

JTAGEN

I20

SWDEN

I36

FTDI_DBG

S

B

DBGOUT

I105

A

I85

I109

I92

I16

JTAGEN

I111

I35

S

I112

B
A

I17

DBGOUT

I96

6

I99

C

I100

I95

INTDBG

I102

7

8

RSTSW

RC

EXTCABLEn

HIBn

14

26

16

9

I15

I104

I74

I13

DRVEN

I108

Luminary Micro, Inc.
Fury Evaluation Kit
JTAG Logic with Auto Mode Detect and Hibernate
AUG 23, 2007

44

41

I87

32

24

21

40

I8

31

33

38

1

ITCK

I86

2

I2

I42

XTDO

XTDI

XTMS

DBGLED

3

4

5

6

I70

I106

I107

TEST

TRSTn

MCURSTn

7

7

8

A B C D E F G H

22 October 28, 2008

APPENDIX B

Connection Details

This appendix contains the following sections:

 Component Locations
 Evaluation Board Dimensions
 I/O Breakout Pads
 ARM Target Pinout
 References

Component Locations

Figure B-1. Component Locations

October 28, 2008 23

Evaluation Board Dimensions

Figure B-2. Evaluation Board Dimensions

I/O Breakout Pads

The LM3S6965 EVB has 44 I/O pads, 14 power pads, and 2 crystal connections, for a total of 60
pads. Connection can be made by soldering wires directly to these pads, or by using 0.1” pitch
headers and sockets.

24 October 28, 2008

Stellaris® LM3S6965 Evaluation Board

Note: In Table B-2, an asterisk (*) by a signal name (also on the EVB PCB) indicates the signal is
normally used for on-board functions. Normally, you should cut the associated jumper (JP1-15)
before using an assigned signal for external interfacing.

Table B-1. I/O Breakout Pads

Description

PD4/CCP0 34 33 PB4/C0- +12 V 60 59 GND
PD6/FAULT 32 31 PD5/CCP2 PB5/C1- 58 57 PB6/C0+
GND 30 29 PD7/CCP1 PB7/TRST
ADC1 28 27 ADC0 PC3/TDO*5453PE3/PHA1*
ADC3 26 25 ADC2 PE2/PHB1 52 51 GND
IDX0* 24 23 GND PE0/PWM4 50 49 PE1/PWM5*
PD2/U1RX 22 21 PD1/PWM1 PB2/SCL0 48 47 PB3/SDA0
PG2/U2TX 20 19 PD3/U1TTX PB1/PWM3 46 45 GND
PC7/PHB0*1817PG0/U2RX PF1/IDX1 44 43 PB0/PWM2
PC5/C1+ 16 15 PC6/CCP3* PF3/LED0 42 41 PF2/LED1
GND 14 13 PC4/PHA0 GND 40 39 OSC32
+3.3 V 12 11 PA0/U0RX* GND 38 37 OSC32
PA1/U0TX*109PA2/SSICLK* PF0/PWM0 36 35 +3.3 V
PA3/SFSS*87PA4/SSIRX*

Pad

No.

Pad

No.

Description Description

Pad

No.

56 55 PC2/TDI*

Pad

No.

Description

PA5/SSITX*6 5PA6/SCL1
PA7/SDA1 43GND
GND 21+5V

Recommended Connectors

Connection can be made by soldering wires directly to pads or using 0.1” pitch headers and
sockets.

Table B-2. Recommended Connectors

Pins 1-34 (2 x 17 way) PCB Socket Sullins PPPC172LFBN-RC Digikey S7120-ND

Cable Socket 3M 89134-0101 Digikey MKC34A-ND
Pin Header Sullins PEC17DAAN Digikey S2012E-17-ND

Pins 35-06 (2 x 13 way) PCB Socket Sullins PPPC132LFBN-RC Dig ikey S7116-ND

Cable Socket 3M 89126-0101 Digikey MKC26A-ND
Pin Header Sullins PEC13DAAN Digikey S2012-13-ND

October 28, 2008 25

ARM Target Pinout

In ICDI input and output mode, the Stellaris LM3S6965 Evaluation Kit supports ARM’s standard
20-pin JTAG/SWD configuration. The same pin configuration can be used for debugging over
Serial Wire Debug (SWD) and JTAG interfaces. The debugger software, running on the PC,
determines which interface protocol is used.

The Stellaris target board should have a 2x10 0.1” pin header with signals as indicated in
Table B-3. This applies to both an external Stellaris MCU target (Debug output mode) and to
external JTAG/SWD debuggers (Debug input mode).

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

Function Pin Pin Function

VCC 12nc
nc 3 4 GND

TDI 56GND
TMS 78GND
TCK 910GND
NC 11 12 GND
TDO 13 14 GND

nc 15 16 GND
nc 17 18 GND
nc 19 20 GND

ICDI does not control RST
implemented as commands over JTAG/SWD, so these signals are not necessary.

It is recommended that connections be made to all GND pins; however, both targets and external
debug interfaces must connect pin 18 and at least one other GND pin to GND.

References

In addition to this document, the following references are included on the Stellaris Family
Development Kit documentation CD-ROM and are also available for do wnload at

www.luminarymicro.com:

 Stellaris LM3S6965 Evaluation Kit Quickst art Guide for appropriate tool kit (s ee “Evaluation Kit

Contents,” on page 9)

 Stellaris LM3S6965 Read Me First for the ENET Evaluation Kit
 Stellaris Family Peripheral Driver Library

(device reset) or TRST (test reset) signals. Both reset functions are

 Stellaris Family Peripheral Driver Library User’s Manual, publication PDL-LM3S6965
 Stellaris LM3S6965 Data Sheet, publication DS-LM3S6965

26 October 28, 2008

Stellaris® LM3S6965 Evaluation Board

Additional references include:

 Information on development tool being used:

– RealView MDK web site, www.keil.com/arm/rvmdkkit.asp
– IAR Embedded Workbench web site, www.iar.com
– Code Sourcery GCC development tools web site,

www.codesourcery.com/gnu_toolchains/arm

– Code Red Technologies development tools web site, www.code-red-tech.com

October 28, 2008 27

28 October 28, 2008

APPENDIX C

Contact Information

Company Information

Luminary Micro, Inc. designs, markets, and sells ARM Cortex-M3-based microcontr ollers (MCUs).
Austin, Texas-based Luminary Micro is the lead partner for the Cortex-M3 processor, delivering the
world's first silicon implementation of the Cortex-M3 processor. Luminary Micro's introduction of
the Stellaris® family of products provides 32-bit performance for the same price as current 8- and
16-bit microcontroller designs. With entry-level pricing at $1.00 for an ARM technology-based
MCU, Luminary Micro's Stellaris product line allows for standardization that eliminates future
architectural upgrades or software tool changes.

Luminary Micro, Inc.
108 Wild Basin, Suite 350
Austin, TX 78746
Main: [phone]
Fax: [phone]
http://www.luminarymicro.com

Support Information

For support on Luminary Micro products, contact:
[e-mail]

[phone], ext. 3

October 28, 2008 29

30 October 28, 2008