Stellaris® LM3S3748 Evaluation Kit User's Manual · See the LM3S3748 microcontroller data sheet (order number DS-LM3S3748) for complete device details. The LM3S3748 microcontroller

EK-LM3S3748-00 Copyr ight © 2008 Luminary Micro, Inc.

Stellaris® LM3S3748Evaluation KitUSER ’S MANUAL

2 April 2, 2008

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Stellaris® LM3S3748 Evaluation Kit

Table of ContentsChapter 1: Stellaris® LM3S3748 Evaluation Board ....................................................................................... 9Features............................................................................................................................................................ 10Block Diagram .................................................................................................................................................. 10Kit Contents ...................................................................................................................................................... 11

Evaluation Board Specifications ................................................................................................................... 12Microcontroller Features ............................................................................................................................... 12

Chapter 2: Hardware Description.................................................................................................................. 15LM3S3748 Microcontroller Overview................................................................................................................ 15

Clocking ........................................................................................................................................................ 15Reset............................................................................................................................................................. 15Power Supplies ............................................................................................................................................. 15USB............................................................................................................................................................... 16

Debugging ........................................................................................................................................................ 17Debugging Modes......................................................................................................................................... 17Debug In Considerations .............................................................................................................................. 17Debug USB................................................................................................................................................... 18USB to JTAG/SWD....................................................................................................................................... 18Virtual COM Port........................................................................................................................................... 18Serial Wire Out.............................................................................................................................................. 18

Color LCD ......................................................................................................................................................... 19Features........................................................................................................................................................ 19Control Interface ........................................................................................................................................... 19Backlight ....................................................................................................................................................... 19Power............................................................................................................................................................ 20

Oscilloscope ..................................................................................................................................................... 20Voltage Reference ........................................................................................................................................ 20Differential Inputs .......................................................................................................................................... 20Test Signals .................................................................................................................................................. 21Optimizing the Oscilloscope.......................................................................................................................... 21

Other Peripherals.............................................................................................................................................. 22Speaker......................................................................................................................................................... 22Navigation Switch ......................................................................................................................................... 23Status LED.................................................................................................................................................... 23

Interfacing to the EVB....................................................................................................................................... 23Bypassing Peripherals ...................................................................................................................................... 23In-Circuit Debugger Interface............................................................................................................................ 23

Appendix A: Schematics................................................................................................................................ 25Appendix B: PCB ............................................................................................................................................ 31Component Locations....................................................................................................................................... 31Evaluation Board Dimensions........................................................................................................................... 32

Appendix C: Bill of Materials (BOM) ............................................................................................................. 33Appendix D: Connection Details ................................................................................................................... 37I/O Breakout Pads ............................................................................................................................................ 37

April 2, 2008 3

DC Power Jack ................................................................................................................................................. 38ARM Target Pinout ........................................................................................................................................... 38Oscilloscope Header Pinout ............................................................................................................................. 38

Appendix E: References ................................................................................................................................ 41Appendix F: Contact Information.................................................................................................................. 43

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List of FiguresFigure 1-1. LM3S3748 Evaluation Board........................................................................................................... 9Figure 1-2. LM3S3748 EVB Block Diagram .................................................................................................... 11Figure 2-1. Oscilloscope Acceptable Measurement Range............................................................................. 21Figure 2-2. Oscilloscope Connections ............................................................................................................. 21Figure 2-3. ICD Interface Mode ....................................................................................................................... 24Figure B-1. LM3S3748 Evaluation Board Component Locations..................................................................... 31Figure B-2. LM3S3748 Evaluation Board Dimensions..................................................................................... 32Figure D-1. DC Power Jack.............................................................................................................................. 38

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List of TablesTable 2-1. Board Power Options .................................................................................................................... 16Table 2-2. USB-Related Signals..................................................................................................................... 16Table 2-3. LM3S3748 EVB Hardware Debugging Configurations.................................................................. 17Table 2-4. Debug-Related Signals ................................................................................................................. 18Table 2-5. LCD-Related Signals..................................................................................................................... 19Table 2-6. Oscilloscope Electrical Specifications ........................................................................................... 20Table 2-7. Speaker-Related Signals............................................................................................................... 22Table 2-8. Navigation Switch-Related Signals ............................................................................................... 23Table C-1. LM3S3748 Bill of Materials............................................................................................................ 33Table D-1. I/O Breakout Pads ......................................................................................................................... 37Table D-2. ARM Target Pinout........................................................................................................................ 38Table D-3. Oscilloscope Header Pinout .......................................................................................................... 38

April 2, 2008 7

8 April 2, 2008

C H A P T E R 1

Stellaris® LM3S3748 Evaluation BoardThe Stellaris® LM3S3748 Evaluation Board (EVB) is a compact and versatile evaluation platform for the Stellaris LM3S3748 ARM® Cortex™-M3-based microcontroller. The evaluation board design highlights the LM3S3748 microcontroller's key features including USB 2.0 full-speed (12 Mbps) controller, Analog-to-Digital Converter (ADC), and serial interfaces.

The LM3S3748 EVB has connectors for both embedded USB Host and USB Device operation; allowing a range of USB application options to be evaluated. In USB Device mode, a small switch selects between bus-powered and self-powered options.

Four ADC signals are paired as two differential channels to implement a 1MS/s oscilloscope application on the LCD panel. The oscilloscope feature set includes USB host and device connectivity as well as SD card support.

The LM3S3748 EVB may be used 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 target.

The LM3S3748 Evaluation Kit enables rapid evaluation and prototyping of LM3S3748 microcontroller designs. The kit also includes extensive example applications and complete source code. Figure 1-1 shows the LM3S3748 EVB in detail.

Figure 1-1. LM3S3748 Evaluation Board

USB Host Connector

USB Device Connector

Stellaris LM3S3748

Microcontroller

MicroSD card slot

Oscilloscope terminals

Reset switch

USB interface for Debugger

JTAG/SWD input and output

Status LED

Navigation switch with press-to-select

Speaker

34-pin I/O break-out

header

34-pin I/O break-out header

5 VDC supply input

Color LCD Panel

USB Power Mode Switch

April 2, 2008 9

Features

FeaturesThe Stellaris LM3S3748 Evaluation Board includes the following features:

Stellaris LM3S3748 microcontroller

2-channel oscilloscope demo application

USB Host and Device connectors

Bus-powered or self-powered

Simple setup; USB cable provides serial communication, debugging, and power

Color LCD graphics display with 128 x 128 pixel resolution

User LED, and navigation switch with press to select

8Ω Magnetic speaker with amplifier

microSD card slot

USB interface for debugging and power supply

DC jack for optional 5 V power supply

Standard ARM® 20-pin JTAG debug connector with input and output modes

LM3S3748 microcontroller I/O available on labeled break-out pads

Block DiagramFigure 1-2 on page 11 shows the LM3S3748 EVB block diagram.

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Figure 1-2. LM3S3748 EVB Block Diagram

Kit ContentsThe Stellaris LM3S3748 Evaluation Kit contains everything needed to develop and run USB applications using Stellaris microcontrollers including:

LM3S3748 Evaluation Board (EVB)

USB cables (1 each for device and debugger use)

USB flash memory stick

Four oscilloscope test leads

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

USB

USB

USB

StellarisDust Devil

Microcontroller

DualUSB

DeviceController

LCD DisplayCSTN 128 x128

Debu

g

I/O Signal Break-out

JTAG/SWDOutput/Input

Debug USB

Reset+3.3 V

Regulator

SW

D/JT

AGM

ux

UART0

Targ

etC

able

Debug

Switch

NavSwitch

LED

USB Host /Device Evaluation Board

I/O Signal Break-out

USBType A

connector

USB

Host Mode

I/Osi

gnal

s

‘ScopeCH1Input

‘ScopeCH2Input

Control+5 V host supply1.5 V

reference

USBMini-B

connector

USB

Swi

tchDevice Mode

April 2, 2008 11

Kit Contents

• Code Sourcery GCC development tools

• CodeRed Technologies development tools

Complete documentation

– Quickstart guide

– Quickstart source code

– DriverLib and example source code

Evaluation Board SpecificationsBoard supply voltage: 4.85–5.25 Vdc from one of the following sources:

– Debugger USB cable (connected to a PC)

– Device USB cable (connected to a PC)

– DC power jack

Board supply current: 130 mA typ (fully active, CPU at 50 MHz, no audio)

Break-out power output: 3.3 Vdc (100 mA max)

Speaker power: 0.3 W max

Dimensions: 4.65” x 2.45” x 0.33” (L x W x H)

RoHS status: Compliant

When the EVB is used in USB Host mode, the host connector is capable of supplying power to the connected USB device. The available supply current is limited to ~250 mA unless the EVB is powered from an external 5 V supply with a ≥ 600 mA rating.

Microcontroller FeaturesThe LM3S3748 microcontroller includes the following product features:

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)

– 37 interrupt channels with eight priority levels

128 KB single-cycle flash

64 KB single-cycle SRAM

Pre-programmed ROM

DMA controller

Two SSI modules

One USB Host controller

Four general-purpose 32-bit timers

Two fully programmable 16C550-type UARTs

Eight 10-bit ADC channels (inputs) when used as single-ended inputs

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Two integrated analog comparators

Two I2C modules

Four PWM generator blocks

One QEI module with position integrator for tracking encoder position

3 to 61 GPIOs, depending on user configuration

On-chip low drop-out (LDO) voltage regulator

Hibernation module

April 2, 2008 13

Kit Contents

14 April 2, 2008

C H A P T E R 2

Hardware DescriptionIn addition to a microcontroller, the Stellaris® LM3S3748 evaluation board includes a range of useful peripheral features and an integrated in-circuit debug interface (ICDI). This chapter describes how these peripherals operate and interface to the microcontroller.

LM3S3748 Microcontroller OverviewThe heart of the EVB is a Stellaris LM3S3748 ARM® Cortex™-M3-based microcontroller. The LM3S3748 microcontroller offers 128-KB flash memory, 64-KB SRAM memory, 50-MHz operation, USB, and a wide range of peripherals. See the LM3S3748 microcontroller data sheet (order number DS-LM3S3748) for complete device details.

The LM3S3748 microcontroller is factory-programmed with a quickstart demo program. The quickstart program resides in on-chip flash memory and runs each time power is applied, unless the quickstart has been replaced with a user program.

ClockingThe EVB uses an 8.0-MHz crystal to complete the LM3S3748 microcontroller's main internal clock circuit. An internal PLL, configured in software, multiplies this clock to 50 MHz for core and peripheral timing.

The real-time clock oscillator is part of the microcontroller's Hibernation module and uses a 4.194304 MHz crystal for timing. This frequency divides by 128 to generate a 32.7680 kHz standard timing frequency.

ResetThe LM3S3748 microcontroller shares its external reset input with the LCD display. In the EVB, reset sources are gated through the CPLD, though in a typical application, a simple wired-OR arrangement, with a resistor to +3.3 V, is sufficient.

External reset is asserted (active low) under any one of these conditions:

Power-on reset

Reset push switch SW1 held down

By the USB device controller (U5 FT2232) when instructed by the debugger

Power SuppliesThe EVB has two main power rails. A +3.3 V supply powers the microcontroller and most other circuitry. A +5 V supply is used by the Host USB port and In-circuit Debug Interface (ICDI) USB controller. A low drop-out (LDO) regulator (U8) converts the +5 V power rail to +3.3 V. Both rails are routed to pads on the I/O break-out headers and may be used to power external circuits.

April 2, 2008 15

LM3S3748 Microcontroller Overview

EVB power can be supplied through three different connectors as shown in Table 2-1.

Only one power source should be connected to the EVB. If the USB Power switch (SW3) is in the BUS position, the board should be powered from J6 (USB Device connector). If the USB Power switch is in the SELF position, the board should be powered from J7 (Debug USB connector) or from J5 (DC power jack). Do not apply power to J5 and J7 at the same time.

The current and voltage available on the USB host port is a function of the EVB power source. If board power is provided by a USB cable, the host port power is limited to 500 mA minus the EVB power requirements. Use the DC jack to provide power from a +5 V source if a full 500 mA USB host supply is necessary on J7.

USBThe LM3S3748's full-speed USB controller supports both Host and Device configurations. In Host mode, the EVB acts as a host for USB devices connected to J1. In Device mode, the EVB acts as a device and can be connected to another USB host, such as a PC.

The EVB has dedicated USB Host and USB Device connectors. A multiplexer (U9), controlled by a GPIO pin (PH2/PB0), determines which port is active by switching D+ and D- signals. Each port has additional ESD protection diode arrays (D9, D10) for up to 15 kV of electrostatic discharge (ESD) protection.

U7, a fault-protected switch, controls and monitors power to the USB Host port. USB0EPEN, the control signal from the microcontroller, has a pull-down resistor to ensure Host-port power remains

Table 2-1. Board Power Options

Power Source Reference Main Features Powered?

USB Host Feature Powered

DC Jack J5 Yes Yes

USB Device connector J6 Yesa

a. To power the EVB, the USB power switch (SW3) must be in the “BUS” position.

No

Debug Interface USB connector

J7 Yes Yes

Table 2-2. USB-Related Signals

Microcontroller Pin EVB Function To isolate, remove...

Pin 70 USBDM USB Data- -

Pin 71 USBDP USB Data+ -

Pin 73 USBRBIAS USB bias resistor -

Pin 66 PB0 Input (see Rev A0 errata) -

Pin 67 PB1 Input (see Rev A0 errata) -

Pin 84 PH2 USB Host/Device mux control JP33

Pin 83 PH3/USB0EPEN Host power enable (active high) -

Pin 76 PH4/USB0PFLT Host power fault (active low) -

16 April 2, 2008


off during reset. The power switch immediately cuts power if the attached USB device draws more than 1 Amp, or if the switches' thermal limits are exceeded by a device drawing more than 500 mA. Under fault conditions, U7 will set its over-current output pin low. This is an open-drain signal, so a pull-up must be enabled by the microcontroller. The USB controller can be configured to generate an interrupt if USB0PFLT is asserted.

The EVB can be either a bus-powered USB device or self-powered USB device depending on the position of the USB power switch (SW3).

WARNING – Do not change the USB power selection while power is applied. Doing so may damage the switch contacts.

When using the EVB in USB-Host mode, power to the EVB should be supplied by the In-circuit Debugger (ICDI) USB cable or by a +5 V source connected to the DC power jack. Set the USB power switch to self-power.

Note that the LM3S3748 microcontroller’s USB capabilities are completely independent from the ICDI USB functionality.

DebuggingStellaris 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 ModesThe LM3S3748 EVB supports a range of hardware debugging configurations. Table 2-3 summarizes these configurations.

Modes 2 and 3 automatically detect the presence of an external debug cable. When the debugger software connected to the EVB's USB controller the EVB automatically selects Mode 2 and illuminates the red Debug Out LED.

Debug In ConsiderationsDebug Mode 3 supports evaluation board debugging using an external debug interface. Mode 3 is automatically selected when a device such as a Segger J-Link or Keil ULINK is connected to the EVB.

Table 2-3. LM3S3748 EVB Hardware Debugging Configurations

Mode Debug Function Use Selected by...

1 Internal ICDI Debug on-board LM3S3748 microcontroller over Debug USB interface.

Default mode

2 ICDI out to JTAG/SWD header

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

Connecting to an external target and starting debug software.

The red Debug Out LED will be ON

3 In from JTAG/SWD header

For users who prefer an external debug interface (ULINK, JLINK, etc.) with the EVB.

Connecting an external debugger to the JTAG/SWD header

April 2, 2008 17

Debugging

Debug USBAn 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.

The ICDI USB capabilities are completely independent from the LM3S3748's on-chip USB functionality.

A small serial EEPROM holds the FT2232 configuration data. The EEPROM is not accessible by the LM3S3748 microcontroller. For full details on FT2232 operation, go to www.ftdichip.com.

USB to JTAG/SWD The FT2232 USB device performs JTAG/SWD serial operations under the control of the debugger. A CPLD (U6) multiplexes SWD and JTAG functions and, when working in SWD mode, provides direction control for the bidirectional data line. The CPLD also implements logic to select between the three debug modes. The target microcontroller selection is determined by multiplexing TCK/SWCLK.

Virtual COM PortThe Virtual COM Port (VCP) allows Windows applications (such as HyperTerminal) to communicate with UART0 on the LM3S3748 over USB. Once the FT2232 VCP driver is installed, Windows assigns a COM port number to the VCP channel.

Serial Wire OutThe EVB supports the Cortex-M3 Serial-Wire Output (SWO) trace capabilities. Under debugger control, the CPLD can route the SWO datastream to the VCP transmit channel. The debugger can then decode and interpret the trace information received from the Virtual Com Port (VCP). The normal VCP connection to UART0 is interrupted when using SWO.

Not all debuggers support SWO.

Refer to the Stellaris LM3S3748 Datasheet for additional information on the Trace Port Interface Unit (TPIU).

Table 2-4. Debug-Related Signals


Pin 77 TDO/SWO JTAG data out or trace data out -

Pin 78 TDI JTAG data in -

Pin 79 TMS/SWDIO JTAG TMS or SWD data in/out -

Pin 80 TCK/SWCLK JTAG Clock or SWD clock -

Pin 26 PA0/U0RX Virtual Com port data to LM3S3748 JP12

Pin 27 PA1/U0TX Virtual Com port data from LM3S3748 JP25

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Color LCD The EVB features a liquid crystal graphics display with 128 x 128 pixel resolution. The display is protected during shipping by a thin, protective plastic film. Remove the film by gently pulling the green tab.

FeaturesThe color LCD includes the following features:

Formike Electronic KWH015C04-F01 display

CSTN 128 x‘ h128 resolution

16-bit color

White LED backlight

8-bit data bus

ST7637 Drive IC

Control InterfaceThe color LCD module has a built-in controller IC with an 8-bit parallel interface. Port G is used to transfer data to and from the LCD module. Three control signals (A0, WR, RD) provide read/write and register/data control using GPIO pins.

BacklightThe white LED backlight must be powered for the display to be visible. Set PF1/PWM1 high to turn on the backlight. For brightness control, use the pin's PWM function to reduce the normal 34 mA supply current.

Table 2-5. LCD-Related Signals


Pin 19 PG0 LCD Data 0 JP16








Pin 25 PC4 LCD Write Enable (active low) JP30

Pin 24 PC5 LCD Read Enable (active low) JP21

Pin 72 PB2 LCD Register / Data select JP11

Pin 61 PF1/PWM1 Backlight control JP19

April 2, 2008 19

Oscilloscope

PowerThe LCD module has internal bias voltage generators and requires only a single 3 Vdc supply, which is provided via D2 and D3.

OscilloscopeThe oscilloscope feature has two differential measurement channels which provide waveform acquisition using the LM3S3748 microcontroller's Analog-to-Digital Converter (ADC). This section describes the oscilloscope hardware. For a detailed description of the oscilloscope operation and software, see the Stellaris® Peripheral Driver Library User's Guide in the LM3S3748 Evaluation Kit’s Example Applications section.

Voltage Reference The oscilloscope circuit can measure negative voltages by biasing the oscilloscope input channels to +1.5 V. A voltage divider is buffered by an op-amp (U2) for a low impedance voltage reference. The reference voltage varies proportionally with the 3.3 V rail, but the differential measurement configuration will successfully reject this error.

Differential InputsBoth input channels have 11:1 differential input voltage dividers. For accuracy, 0.1% resistors are used. The ADC inputs to the LM3S3748 microcontroller have two key parameters sets in this application circuit. The first are the common-mode (absolute) voltage limits of 0 to 3.0 V. This sets the voltage limit on any oscilloscope input signal to +16.5 V to -16.5 V, using the following equations:

Vcm(max+) = (Vadc(max) - Vref) * 11 = +16.5 V

Vcm(max-) = (Vadc(min) - Vref) * 11 = -16.5 V

The second key parameter set is the differential mode voltages limits, which are +1.5 V and -1.5 V. These values are important in defining the maximum voltage between the inputs to each channel.

Vdm = Vadc(diff) * 11 = +/-16.5 V

Table 2-6. Oscilloscope Electrical Specifications

Parameter Name Min Nom Max Units

Common Mode Input Voltage -16.5 – +16.5 V

Differential Input Voltage – – +16.5 V

Differential Input Voltage – – -16.5 V

Input Impedance – 220K – Ω

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Figure 2-1. Oscilloscope Acceptable Measurement Range

Test SignalsThe oscilloscope inputs may be used to measure voltages and waveforms at various points on the board. Consider the oscilloscope's input impedance (220 KΩ) when selecting signals to measure. The EVB has two defined test points that can be easily accessed on the oscilloscope header.

Figure 2-2. Oscilloscope Connections

The oscilloscope test leads, included in the evaluation kit, have pin-sockets that are compatible with a wide range of test probes, clips, and hooks that have 0.025" square terminal posts.

Optimizing the OscilloscopeThe oscilloscope hardware is a simple design that balances trade-offs between input impedance, signal bandwidth, and measurement error.

Acceptable measurement

range

+16.5V

-16.5V

0

Min Max

Test Ground

Channel 1-

Channel 1+

Test Point 1

Test Point 2

Channel 2+

Channel 2-

Test Ground

April 2, 2008 21

Other Peripherals

Measurement error is introduced when an ADC is fed from a high-impedance source. Each time the ADC makes a conversion, a very small capacitor in the ADC input-stage must be charged. During the charging period, the voltage may drop slightly.

Using only one oscilloscope channel will reduce the error, because the internal capacitance charges to approximately the same level for each conversion. The error can also be reduced by adding a capacitor across the differential inputs to the ADC (for example, between ADC0 and ADC1).

Adding 33 pF capacitors will stabilize the input to the ADC, however, it will also create a 24-kHz low-pass filter. This will limit the usable bandwidth of the oscilloscope, but will optimize it for DC level measurements.

Another method is to reduce the values of the input divider resistors. The best overall solution would be a high-performance op-amp buffer stage.

Other PeripheralsSpeaker

The LM3S3748 evaluation board's speaker circuit can be used in either tone or waveform mode.

In tone mode, the LM3S3748 microcontroller's PWM module directly generates tones within the audible frequency range. The width of the pulses determines the volume. If only one PWM signal (PWM2 or PWM3) is used, then the non-PWM signal should be configured as a general-purpose output. For increased speaker volume, PWM2 and PWM3 can be configured as complementary drive signals. In tone and waveform modes, be careful to avoid large DC currents in the speaker. Do not drive the PWM levels to opposite polarities for more than 10 ms.

Waveform mode uses two high-frequency PWM signals to drive a MOSFET H-bridge with an output filter. This circuit is essentially a Class-D amplifier. The symmetrical 2nd order low-pass L-C filter has a cut-off frequency of approximately 33 kHz. The microcontroller's PWM module should be configured with a PWM frequency of at least 66 kHz. Using higher frequencies (for example, 500 kHz) improves audio quality. Once configured, audio waveform data can be used to update the PWM duty cycle at a rate equal to the audio sampling rate.

The speaker on the evaluation board has standard 8Ω impedance. Audio quality can be enhanced by adding a small, vented enclosure around the speaker.

Table 2-7. Speaker-Related Signals


Pin 60 PF2/PWM2 Audio PWM + JP22

Pin 59 PF3/PWM3 Audio PWM - JP20

22 April 2, 2008


Navigation SwitchThe EVB has a four-way navigation switch (SW2) with press-to-select functionality. Each of the five signals connects to GPIO pins on the LM3S3748 microcontroller. The internal 200 kΩ pull-up resistors should be enabled before reading switch status.

The press-to-select switch also connects to the WAKE signal on the LM3S3748's microcontroller’s Hibernate module. Diode D1 blocks current from the WAKE internal pull-up when in Hibernate mode. The diode is transparent in normal switch operation.

Status LEDA user LED (LED3) is provided for general use. The LED is connected to PG2/PWM0, allowing the option of either GPIO or PWM control (brightness control).

Interfacing to the EVBAn array of accessible I/O signals makes it easy to interface the EVB to external circuits. All LM3S3748 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 x on page y has a complete list of I/O signals as well as recommended connectors. Most LM3S3748 I/O signals are +5-V tolerant. Refer to the LM3S3748 microcontroller data sheet for detailed electrical specifications.

Bypassing PeripheralsThe EVB's on-board peripheral circuits require 30 GPIO lines. This leaves 23 GPIO lines 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 30 jumper links, which can be cut with a knife to isolate on-board hardware. The process can be reversed by installing 0603- 0-ohm chip resistors.

NOTE: The quickstart application will not run if one or more jumpers are removed.

In-Circuit Debugger InterfaceThe LM3S3748 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” on page 17 for a description of how to enter Debug Out mode.

Table 2-8. Navigation Switch-Related Signals


Pin 65 PB3 Up Switch JP13

Pin 92 PB4 Down Switch JP10

Pin 91 PB5 Left Switch JP9

Pin 90 PB6 Right Switch JP23

Pin 89 PB7 Select Switch D1

April 2, 2008 23

In-Circuit Debugger Interface

Figure 2-3. 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.

The Stellaris target board should have a 2x10 0.1" pin header with signals as indicated in Table D-2 on page 38. This applies to both an external Stellaris microcontroller target (Debug Output mode) and to external JTAG/SWD debuggers (Debug Input mode).

ICDI does not control RST (device reset) or TRST (test reset) signals. Both reset functions are implemented as commands over JTAG/SWD, so these signals are usually 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. Some external debug interfaces may require a voltage on Pin 1 to set line driver thresholds. The EVB ICDI circuit automatically sets Pin 1 high if an external debugger is connected. In other modes, this pin is unused.

Evaluation Board Target Board

Stellaris MCU

Target Cable

`USB

PC with IDE/debugger

Stellaris MCU

TCK/SWCLK bypasses the on-board microcontroller

JTAG or SWD connects to the external microcontroller

Connecting Pin 18 to GND sets external debug mode

24 April 2, 2008

A P P E N D I X A

SchematicsThis section contains the following schematic diagrams for the LM3S3748 evaluation board:

Microcontroller on page 26

Power, USB Selection on page 27

LCD, Switches, and Audio on page 28

Debugger Interfaces on page 29

JTAG Logic with Auto Mode Detect, Hibernate, and TVcc Control on page 30

April 2, 2008 25

5

5

6

6

D D

C C

B B

A A

Document Number:

RevSheetDate: of3/20/2008 1 4

Drawing Title:

Page Title:

Size

Stellaris USB Host/Device Eval Board

Microcontroller

B

A

BD-LM3S3748

Revision D

0 Ja

History

1Y

8.00

10PF

C1

LCD_W

LCD_R

LCD_A

LCD0

LCD1

LCD2

LCD3

LCD4

LCD5

LCD6

LCD7

On-board Peripheral Signals

free GPIO lines if required.

Jumpers can be cut to

VCP_RX

VCP_TX

CARDCLK

CARDCSn

PA2/SSI0CLK

PA3/SSI0FSS

CARDRXPA5/SSI0TX

SOUND+

UP_SWn

DOWN_SWn

LEFT_SWn

RIGHT_SWn

SOUND-

PF2/PWM2

PF3/PWM3

CARDTXPA4/SSI0RX

LEDPF0/PWM0

WAKEn

Signals

if required.

o

AINAP

AINAM

AINBP

AINBM

BACKLIGHTPF1/PWM1

PB3/I2C0SDA

PB4/C0-

PB5/C1-

PB6/C0+

PB7/NMI

PA0/U0RX

PA1/U0TX

SELECT_SWn

I/O Break-out Headers

1

33

PC2/TDI

PE1/SSI1FSS

PG4/CCP3PG6/PWM6

PF1/PWM1PF3/PWM3

PF5/CCP2PF6/CCP1

PH1/CCP7

+VBUS

D1

MA2J728

PB4/C0-

PB7/NMI

PC4/CCP4

PG1/PWM5PD3/CCP0PD1/PHA0

PD7/ADC4

PE3/SSI1TXPD5/ADC6

PE6/ADC1PE4/ADC3

PC6/U1RX

PA2/SSI0CLKPA5/SSI0TXPA7/I2C1SDA

PB5/C1-

PB2/I2C0SCL

PB3/I2C0SDA

VBAT

PG5/FAULT1PF7/PHB0

PF0/PWM0

PF4/FAULT0PF2/PWM2 +3.3V

PG3/FAULT2PG0/PWM4PE0/SSI1CLK

PA0/U0RXPC3/TDO/SWOPH2/FAULT3PA3/SSI0FSSDBG+5V

JP1

JP2

JP3

JP4

JP9

JP10

JP12

JP13

JP15

JP19

68 67

36 35

JP25

JP24

JP23

JP22

JP20

MA

1

1

2

2

3

3

4

4

ate Description

n 31,08 Final prototype release

C110.1UF

+3.3V

C120.1UF

21

MHz

10PF

C2

Stellaris LM3S3748 Microcontroller

PF7/PHB0

PF0/PWM0PF1/PWM1PF2/PWM2PF3/PWM3PF4/FAULT0PF5/CCP2

PH0/CCP6PH1/CCP7PH2/FAULT3

1 2Y2

4.194304MHz

27PF

C3

27PF

C4

C60.1UF

HIBn

C140.1UF

R1

1M

VBAT

C160.1UF

C130.1UF

PD3/CCP0PD2/CCP5PD1/PHA0PD0/IDX0

PB6/C0+PB5/C1-PB4/C0-PB3/I2C0SDAPB2/I2C0SCL

PB7/NMI

INT_TCKTMS/SWDIO

PC2/TDIPC3/TDO/SWO

PA1/U0TXPA2/SSI0CLKPA3/SSI0FSSPA4/SSI0RXPA5/SSI0TX

PA0/U0RX

PA6/I2C1SCLPA7/I2C1SDA

PC4/CCP4PC5/C1+PC6/U1RXPC7/U1TX

PE0/SSI1CLKPE1/SSI1FSSPE2/SSI1RXPE3/SSI1TX

PC3/TDO/SWOPC2/TDI

USBDP

USBDMR3

9.10K

On-board LCD Signals

free GPIO lines if required.

Jumpers can be cut to

PG0/PWM4PG1/PWM5PG2PG3/FAULT2PG4/CCP3PG5/FAULT1PG6/PWM6PG7/PWM7

PG0/PWM4

PG1/PWM5

PG2

PG3/FAULT2

PG4/CCP3

PG5/FAULT1

PG6/PWM6

PG7/PWM7

PE4/ADC3PE5/ADC2PE6/ADC1PE7/ADC0

R

D

0

PC4/CCP4

PC5/C1+

PF6/CCP1

PD4/ADC7PD5/ADC6PD6/ADC5PD7/ADC4

HOSTEnUSB0VBUS

USB0EPEUSB0PFLT

PB2/I2C0SCL

R210K

+3.3V

C5OMIT

MCURSTn

C151UF0.01UF

C8

0.01UF

C9

C71UF 0.01UF

C10

WAKEn

Oscilloscope

free GPIO/ADC lines

Jumpers can be cut t

PE7/ADC0

PE6/ADC1

PE5/ADC2

PE4/ADC3

2

34

PA0/U0RX26

PA1/U0TX27

PA2/SSI0CLK28

PA3/SSI0FSS29

PA4/SSI0RX30

PA5/SSI0TX31

PC0/TCK/SWCLK80

PC1/TMS/SWDIO79

PC2/TDI78

PC3/TDO/SWO77

PC4/CCP425

PC5/C1+24

PC6/U1RX23

PC7/U1TX22

PD0/IDX0 10

PD1/PHA0 11

PD2/CCP5 12

PD3/CCP0 13

PD4/ADC7 97

PD5/ADC6 98

PD6/ADC5 99

PD7/ADC4 100

GND9

GND15

GND21

GND33

RST64

LDO 7

OSC048

OSC149

PB0 66

PB1/USB0VBUS 67

PB2/I2C0SCL 72

PB3/I2C0SDA 65

PB4/C0- 92

PB5/C1- 91

PB6/C0+ 90

PB7/NMI 89

PE0/SSI1CLK74

PE1/SSI1FSS75

PE2/SSI1RX95

PE3/SSI1TX96

PE4/ADC36

PE5/ADC25

PA6/I2C1SCL34

PA7/I2C1SDA35

PE6/ADC12

PE7/ADC01

PF0/PWM0 47

PF1/PWM1 61

PF2/PWM2 60

PF3/PWM3 59

PF4/FAULT0 58

PF5/CCP2 46

PF6/CCP1 43

PF7/PhB0 42

PG0/PWM419

PG1/PWM518

PG217

PG3/FAULT216

PG4/CCP341

PG5/FAULT140

PG6/PWM637

PG7/PWM736

PH0/CCP6 86

PH1/CCP7 85

PH2/FAULT3 84

PH3/USB0EPEN 83

VDDA 3

GNDA4

VDD33 8

VDD33 20

VDD33 32

VDD33 44

VDD33 56

VDD33 68

VDD33 81

VDD33 93

GND39

GND45

GND54

GND57

GND63

GND69

GND82

GND87

GND94 VDD25 14

VDD25 38

VDD25 62

VDD25 88

WAKE50

HIB51

XOSC052

XOSC153

VBAT 55

PH4/NMI/USB0PFLT 76

USB0DM 70USB0DP 71

USB0RBIAS 73

U1

LM3S3748

PA1/U0TXPA4/SSI0RX

PB6/C0+

PC5/C1+

PE2/SSI1RX

PE5/ADC2PE7/ADC0

PG2

PG7/PWM7

PD2/CCP5PD0/IDX0

PD4/ADC7PD6/ADC5

PH0/CCP6

PC7/U1TX

PA6/I2C1SCL

JP5

JP6

JP8

JP7

JP11

JP14

JP16

JP17

JP18

JP30

JP29

JP28

JP27

JP26

JP21

ar 20, 08 First production release

PB0 to HOSTEn connection required for Rev A0 silicon.

0 OhmJP33

PH2/FAULT3

D6

MA2J728

PH2 controls USB mux (and PB0 input per errata).Note 1:

PB1 tied to +5V per Rev A0 errata.Note 2:

+5V

5

5

6

6

D D

C C

B B

A A

Document Number:


Drawing Title:

Page Title:

Size


Power, USB Selection

B

A

BD-LM3S3748

V D- D+ G5

1234

6

154-UAR42-EJ1

USB HOST

USB DEVICE

+VBUS

DEVICE+5V

5V D- D+ ID G

1 2 3 4

7

5

6

J6 54819-0572

J5

PJ-014D-SMT

DBG

Selector

OmitJP32

4

4

+5V DC

1

1

2

2

3

3

4

4

+3.3V

USBDP

USBDM

HOSTEn

R40Omit

R41Omit

USB0VBUS

C400.1UF

Main +3.3V 200mA Power Supply

VBUS Fault Protected Switch

10V

+ C39150uF

+VBUS

+3.3V

C361UF

C381UF

0.01UF

C37

VOUT 5

NR 1ON3

GN

D2

VIN4

U8PQ1LA333MSPQ

HIBn

R38100K

D4

MBR0520

1

23

DEVICE+5V

D5

MBR0520

+5V

C351UF

USB0PFLT

USB0EPE

Host/Device

+5V

DEVICE+5V

+VBUS

C420.1UF

C410.1UF

N.C

.2

VCC1 GND

IO1

3

IO2

5

D10TPD2E001DRL

N.C

.2

VCC1 GND

IO1

3

IO2

5

D9TPD2E001DRL

D-4

GND 5

D1- 6

GND 2

D1+ 3

NC7

D+1

VCC 14

NC8

D2- 9

S110

VCC 11

D2+ 12

S213

U9

FSUSB11MTCX

GN

D1

IN2

IN3

EN4

OCn5

OUT 6

OUT 7

OUT 8

U7TPS2051BDGN

R39

100K

HOSTEn Low = USB Host selectedHOSTEn High = USB Device selected

SSSS820201

12

3

45

6

SW3

INPUT

Bus-Power / Self-Power Switch

+5VIN

OMITBT1

3V Coin Cell

R421.5K

VBATD7

MA2J728

+3.3V

Hibernation Battery (not installed)

DEVICE+5V

5

5

6

6

D D

C C

B B

A A

Document Number:


Drawing Title:

Page Title:

Size


LCD, Switches and Audio

B

A

BD-LM3S3748

R19

330DBGOUTLED

Debug Out

R18

330LED

Status

R20

330

Power

128x128 CSTN LCD Graphics Display

Status LEDs

+3.3V

LED1Green

LED2Red

LED3Green

rnate

D019 D118 D217 D316 D415 D514 D613 D712

VDD4 GND3 LED-A2 LED-K1

NC5

NC6

GND20

CSn7

RESB8

D/Cn9

WRn10

RDn11

U3

LCD-KWH015C04-F01

LCD7

R2247

LCD6LCD5LCD4LCD3LCD2LCD1LCD0

LCD_RDLCD_WRLCD_A0

MCURSTn

D2

MBR0520

D3

MBR0520

+5V

C23

0.1UF

LCD[0..7]

r

12345678

J2

CON-HD

TEST2

1

1

2

2

3

3

4

4

+3.3V

SOUND+

R12100K

SOUND-

R15100K

Audio Amplifier

C210.1UF

C180.1UF

4.7uH

L1

4.7uH

L21 2

SPK1

HIBn

HibeLED4Red

R21330

C19

1UF

microSD Card Slot

12345678

9 10 11 12

P1

2908-05WB-MG+3.3V

C220.1UF

+3.3V

CARDCSnCARDRX

CARDCLK

CARDTX

R1610K

R1710K

+3.3V

+3.3V

+3.3V

LCD[0..7]

1

2

6

Q3AFDG6322C

3

5

4

Q3BFDG6322C

BACKLIGHT

3

5

4

Q2BFDG6322C

1

2

6

Q2AFDG6322C

1

2

6

Q1AFDG6322C

3

5

4

Q1BFDG6322C

R4

100K 0.1%

13

4

1

52 U2

FAN4174IS5X R14100K

R13120K

+3.3V

VR+1.5V

R810K 0.1%

R910K 0.1%

R1010K 0.1%

R1110K 0.1%

AINAP

AINAM

AINBP

AINBM

2 Channel Oscilloscope

+3.3V

C170.1UF

+3.3VC200.1UF

R5

100K 0.1%

R6

100K 0.1%

R7

100K 0.1%

ResetSW1

SW-B3S1000

SELECT_SWn

UP_SWn

DOWN_SWn

LEFT_SWn

RIGHT_SWn

RESET_SWn

User Switches

1 3Up

6Right

2 4Down

7Left

5Select

SW2

TPA511GLFS

4-way Navigation Switch

Hibernate Mode Indicato

+5V

R-1X8-P100

TEST1

TEST1

TEST2

5

5

6

6

D D

C C

B B

A A

Document Number:


Drawing Title:

Page Title:

Size


Debugger Interfaces

B

A

BD-LM3S3748

DBG+

+5

XTDIXTMS

R36

27

R35

27

R33

27

XTCK

R34

27

VCP_TX

XTDO

R32

27

TP6

TP5

TP4

TP3

TP7

TP8+3.3V

PLD JTAG TEST POINTS

PLD_TCK

PLD_TMS

PLD_TDI

PLD_TDO

+3.3v

JTAG/SWD InterfaceInput/Output

20212223242627283132333438

U6LC4032V-75TN48C

MCURSTn

DBGOUTLED

TARGETCABLEn

XVCC 1 23 45 67 89 10

11 1213151719

14161820

J4

CON-HDR-2X10-P100

R374.7K

1

1

2

2

3

3

4

4

GND18

GND25

GND34

ADBUS0 24

ADBUS1 23

ADBUS2 22

ADBUS3 21

ADBUS4 20

ADBUS5 19

ADBUS6 17

ADBUS7 16

ACBUS0 15

ACBUS1 13

ACBUS2 12

ACBUS3 11

BDBUS0 40

BDBUS1 39

BDBUS2 38

BDBUS3 37

BDBUS4 36

BDBUS5 35

BDBUS6 33

BDBUS7 32

BCBUS0 30

BCBUS1 29

BCBUS2 28

BCBUS3 27

SI/WUA 10

SI/WUB 26

GND9

AGND45

VCC 3

VCC 42

VCCIOA 14

VCCIOB 31

AVCC 46

PWREN# 41

XTOUT44 XTIN43

EECS48

EESK1

EEDATA2

TEST47

RESET#4

RSTOUT#5

3V3OUT6

USBDM8

USBDP7

U5

FT2232D

+3.3v

5V

R25 27

R26 27

+3.3V

+3.3V

DBG_JTAG_EN

R2310K

R24

1.5K

R271.5K

R28

330

+5V

+5V

+5VV

TCKTDI/DITDO/DOTMS/OUTEN

0.1UF

C280.1UF

C29

0.1UF

C30

0.1UF

C33

0.1UF

C34

0.1UF

C27

USB Device Controller

Channel A : JTAG / SW Debug

Channel B : Virtual Com Port

VCP_RX

PC2/TDI

PC3/TDO/SWO

TMS/SWDIO

5V D- D+ ID G

1 2 3 4

7

5

6

J7 54819-0572 +3.3V

SRSTN

Debug Interface Logic

Debugger USB Interface

TDI

1

A52

A63

A74

GN

D (B

ank

0)5

VCC

O (B

ank

0)6

A87

A98

A109

A1110

TCK

11

VC

C12

GN

D13

A1214

A13

15

A14

16

A15

17C

LK1/

I18

CLK

2/I

19

B0B1B2B3B4

TMS

25

B5B6B7

GN

D (B

ank

1)29

VCC

O (B

ank

1)30

B8B9

B10B11

TDO

35

VC

C36

GN

D37

B12

B13

39B

1440

B15

/GO

E141

CLK

3/I

42

CLK

0/I

43

A0/GOE044

A145

A246

A347

A448

Bank 0 Bank 1

+3.3V

RESET_SWn

0.1UFC31

+3.3V

Omit

JP31USBSH

CS 1

SK 2

DI 3

DO 4GND5 ORG6 NC7 VCC8

1K 64X16

U4

CAT93C46

1 2Y3

6.00MHz

27PF

C25

27PF

C26

0.1UF

C32

R304.7K

+3.3V

INT_TCK

SWO_EN

VCP_TX_SWO

MODE

MODE is reserved for future use.

TCK

/SW

CLK

TMS/

SWD

IO

R294.7K

+3.3V

RES

ETR

C

R3110K

+3.3V

1 23 45 67 89 10

J3

CON-HDR-2X5-050

XTCKXTMS

XTDIXTDO

Fine-pitch JTAG/SWD

XVCC

0.01UF

C24 N.C

.2

VCC1 GND 4

IO1

3

IO2

5

D8TPD2E001DRL

+3.3V

G H

G H

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

I105

7

I11415

I10738

I10633

I8644

I221

I707

I4231

I9232

I1624

I87

41

I8

40

I115

I111

I112

I109

ITCK

XTCK

U0TX

XTDO

XTDI

XTMS

DBGLED

TEST

TRSTn

MCURSTn

TVCC

e Detect, Hibernate and TVcc Control

A B C D E F

A B C D E F

I102

I100C

D QI96

I104

I36

I35

I18AB

S

I89AB

S I85AB

S

I1AB

S

I9034

I347

I646

I10816

I1326

I159

I7414

I9110

I745

I373

I54

I448

I9

I99I95

I20

FTDI_DBG

DBGOUTVCP_TX

SWO_EN

FTDI_TCK

FTDI_TDI_DO

FTDI_TDO_DI

JTAGEN

FTDI_TMS

JTAGENFTDI_DBG

FTDIJTAGEN SWDEN

FTDI_SRSTn

FTDI_DBG DBGOUT

INTDBG

RSTSW

RC

EXTCABLEn

HIBn DRVENSept 28, 2007JTAG Logic with Auto ModLuminary Micro, Inc.

A P P E N D I X B

PCBThis appendix contains plots showing component locations and board dimensions.

Component Locations (see page 31)

Evaluation Board Dimensions (see page 32)

Component LocationsFigure B-1. LM3S3748 Evaluation Board Component Locations

C110.1UF

+3.3V

C2

Stellaris LM3S3748 Microcontroller

PF7/PHB0

PF0/PWM0PF1/PWM1PF2/PWM2PF3/PWM3PF4/FAULT0PF5/CCP2

PH0/CCP6PH1/CCP7PH2/FAULT3

1 2Y2

4.194304MHz

C3 C4

HIBn

R1

1M

C130.1UF

PD3/CCP0PD2/CCP5PD1/PHA0PD0/IDX0

PB6/C0+PB5/C1-PB4/C0-PB3/I2C0SDAPB2/I2C0SCL

PB7/NMI

INT_TCKTMS/SWDIO

PC2/TDIPC3/TDO/SWO

PA1/U0TXPA2/SSI0CLKPA3/SSI0FSSPA4/SSI0RXPA5/SSI0TX

PA0/U0RX

PA6/I2C1SCLPA7/I2C1SDA

PC4/CCP4PC5/C1+PC6/U1RXPC7/U1TX

PE0/SSI1CLKPE1/SSI1FSSPE2/SSI1RXPE3/SSI1TX

PC3/TDO/SWOPC2/TDI

USBDP

USBDMR3

9.10K

-board LCD Signals

GPIO lines if required.

pers can be cut to

PG0/PWM4PG1/PWM5PG2PG3/FAULT2PG4/CCP3PG5/FAULT1PG6/PWM6PG7/PWM7

PG0/PWM4

PG1/PWM5

PG2

PG3/FAULT2

PG4/CCP3

PG5/FAULT1

PG6/PWM6

PG7/PWM7

PE4/ADC3PE5/ADC2PE6/ADC1PE7/ADC0

PC4/CCP4

PC5/C1+

PF6/CCP1

PD4/ADC7PD5/ADC6PD6/ADC5PD7/ADC4

HOSTEnUSB0VBUS

USB0EPEUSB0PFLT

PB2/I2C0SCL

+3.3V

C151UF0.01UF

C8

0.01UF

C9

WAKEn

Oscilloscop

free GPIO/ADC lin

Jumpers can be cu

PE7/ADC0

PE6/ADC1

PE5/ADC2

PE4/ADC3

PA1/U0TXPA4/SSI0RX

PB6/C0+

PC5/C1+

PE2/SSI1RX

PE5/ADC2PE7/ADC0

PG2

PG7/PWM7

PD2/CCP5PD0/IDX0

PD4/ADC7PD6/ADC5

PH0/CCP6

PC7/U1TX

PA6/I2C1SCL

J

J

J

J

JP11

JP14

JP16

JP17

JP18

JP30

JP29

JP28

JP27

JP26

JP21

PB0 to HOSTEn connection required for Rev A0 silicon.

0 OhmJP33

PH2/FAULT3

D6

MA2J728

PH2 controls USB mux (and PB0 input per errata).Note 1:

PB1 tied to +5V per Rev A0 errata.Note 2:

+5V

PA0/U0RX26

PA1/U0TX27

PA2/SSI0CLK28

PA3/SSI0FSS29

PA4/SSI0RX30

PA5/SSI0TX31

PC0/TCK/SWCLK80

PC1/TMS/SWDIO79

PC2/TDI78

PC3/TDO/SWO77

PC4/CCP425

PC5/C1+24

PC6/U1RX23

PC7/U1TX22

PD0/IDX0 10

PD1/PHA0 11

PD2/CCP5 12

PD3/CCP0 13

PD4/ADC7 97

PD5/ADC6 98

PD6/ADC5 99

PD7/ADC4 100

RST64

OSC048

OSC149

PB0 66

PB1 67

PB2/I2C0SCL 72

PB3/I2C0SDA 65

PB4/C0- 92

PB5/C1- 91

PB6/C0+ 90

PB7/NMI 89

PE0/SSI1CLK74

PE1/SSI1FSS75

PE2/SSI1RX95

PE3/SSI1TX96

PE4/ADC36

PE5/ADC25

PA6/I2C1SCL34

PA7/I2C1SDA35

PE6/ADC12

PE7/ADC01

PF0/PWM0 47

PF1/PWM1 61

PF2/PWM2 60

PF3/PWM3 59

PF4/FAULT0 58

PF5/CCP2 46

PF6/CCP1 43

PF7/PhB0 42

PG0/PWM419

PG1/PWM518

PG217

PG3/FAULT216

PG4/CCP341

PG5/FAULT140

PG6/PWM637

PG7/PWM736

PH0/CCP6 86

PH1/CCP7 85

PH2/FAULT3 84

PH3/USB0EPEN 83

VDDA 3

VDD33 8

VDD33 20

VDD33 32

VDD33 44

VDD33 56

WAKE50

HIB51

XOSC052

XOSC153

PH4/NMI/USB0PFLT 76

USB0DM 70USB0DP 71

USB0RBIAS 73

U?

April 2, 2008 31

Evaluation Board DimensionsFigure B-2. LM3S3748 Evaluation Board Dimensions

4.65"

2.45"

0.325 1.50"

1.75

32 April 2, 2008

A P P E N D I X C

Bill of Materials (BOM)Table C-1 provides the BOM for the LM3S3748 Evaluation Kit.

Table C-1. LM3S3748 Bill of Materials

Reference Qty Part Number Description Mfg Supplier Stock No.

C1, C2 2 C0603C100J5GACTU Capacitor 10pF 50V 5% Ceramic NPO/COG 0603

Kemet Mouser 80-C0603C100J5G

C3, C4, C25, C26 4 C0603C270J5GACTU Capacitor 27pF 50V 5% Ceramic NPO/COG 0604

Kemet Mouser 80-C0603C270J5G

C39 1 T491D157M010AT Capacitor 150uF 10V Tantalum Size D

Kemet Digikey 399-3778-2-ND

C6, C11, C12, C13, C14, C16, C17, C18, C20, C21, C22, C23, C27, C28, C29, C30, C31, C32, C33, C34, C40,

C41, C42

23 C0603C104K4RACTU Capacitor, 0.1uF 16V 10% 0603 X7R

Kemet Mouser 80-C0603C104K4R

C7, C15, C19, C35, C36, C38

6 TMK212BJ105KG-T Capacitor 1.0uF 25V X5R 0805

Taiyo Yuden Digikey 587-1291-1-ND

C8, C9, C10, C24, C37

5 C0603C103J5RACTU Capacitor, 0.01uF 50V 5% 0603 X7R

Kemet Mouser 80-C0603C103J5R

D2, D3, D4, D5 4 MBR0520L Diode, Schottky 500mA 20V SOD123

Fairchild Arrow/Mouser

MBR0520L

D1, D6, D7 3 MA2J728 Diode, Schottky 30mA 30V Low Ir

Panasonic Digikey MA2J72800LTR-ND

D8, D9, D10 3 TPD2E001DRLR Diode, ESD protection array Low-cap SOT-533

TI Digikey 296-21883-1-ND

J1 1 AU-Y1006-R 154-UAR42-E

Connector, USB Type A Assmann Kobiconn

Digikey Mouser

AE9924-ND 154-UAR42-E

J2 1 538-22-28-4083 Connector, 8 way SIL header 0.1"

Molex Mouser 22-28-4083

J4 1 TSHSM-110-D-02-T-H-AP-TR-P-LF 10995 TSM-110-01-S-DH-A-P-TR TSM-110-01-L-DH-A-P-TR TSM-110-01-T-DH-A-P-TR

Connector, 20 way dual header r/a SMT with placement cap

ML Electronics /

4ucon / Samtec

ML Electronics

/ 4ucon

TSHSM-110-D-02-T-H-AP-TR-P-LF 10995

J5 1 PJ-014D-SMT Connector, DC Jack SMT 1.3x3.8mm

CUI Digikey CP-014DPJTR-ND

J6, J7 2 54819-0572 Connector, USB Mini-B SMT 5pin

Molex Mouser 538-54819-0572

April 2, 2008 33

L1, L2 2 CBC2012T4R7M Inductor 4.7uH 360mA 0805 Chip Inductor

Taiyo Yuden Digikey 587-1602-1-ND

LED1, LED3 2 LTST-C171GKT LED, 0805 SMT Green LiteOn Mouser / Arrow

LTST-C171GKT

LED2, LED4 2 LTST-C171EKT LED, 0805 SMT Red LiteOn Mouser / Arrow

LTST-C171EKT

P1 1 2908-05WB-MG Connector, Micro SD card, push-push SMT

3M Mouser 517-2908-05WB-MG

Q1, Q2, Q3 3 FDG6322C Mosfet, P-N Channel Complementary Pair 25V SC70-6

Fairchild Digikey FDG6322CTR-ND

R1 1 ERJ-3GEYJ105V Resistor 1M Ohms 5% 0603 Panasonic Digikey P1.0MGCT-ND

R12, R14, R15, R38, R39

5 ERJ-3EKF1003V Resistor 100K 1% 0603 Panasonic Digikey P100KHCT-ND

R13 1 ERJ-3EKF1203V Resistor 120K 1% 0603 Panasonic Digikey P120KHCT-ND

R18, R19, R20, R21, R28

5 ERJ-3GEYJ331V Resistor 330 ohms 5% 0603 Panasonic Digikey P330GCT-ND

R2, R16, R17, R23, R31

5 ERJ-3GEYJ103V Resistor, 10K 5% 0603 Panasonic Digikey P10KGCT-ND

R22 1 ERJ-3GEYJ470V Resistor 47 Ohms 5% 0603 Panasonic Digikey P47GCT-ND

R24, R27, R42 3 ERJ-3GEYJ152V Resistor, 1.5K 5% 0603 Panasonic Digikey P1.5KGCT-ND

R25, R26, R32, R33, R34, R35,

R36

7 ERJ-3GEYJ270V Resistor 27 Ohms 5% 0603 Panasonic Digikey P27GCT-ND

R29, R30, R37 3 ERJ-3GEYJ472V Resistor 4.7K 5% 0603 Panasonic Digikey P4.7KGCT-ND

R3 1 ERJ-3EKF9101V Resistor 9.10K 1% 0603 Panasonic Digikey P9.1KHCT-ND

R4, R5, R6, R7 4 ERA-3AEB104V Resistor 100K 0.1% 25ppm 0603

Panasonic Digikey P100KDBTR-ND

R8, R9, R10, R11 4 ERA-3AEB103V Resistor 10K 0.1% 25ppm 0603

Panasonic Digikey P10KDBTR-ND

SPK1 1 NDT-03C Speaker, 8 ohm 0.3W Surface mount

Star Micronics

Hawk NDT-03C

SW2a 1 TPA511GLFS Switch, 4-way Navigation SMT w/select

C&K Digikey 401-1130-2-ND

SW2b 1 BOUTON TPA Cap for Nav Switch, Black C&K Digikey 401-1997-ND

SW1 1 B3S-1000P Switch, Momentary Tact 160gmf 6mm

Omron Arrow / Future

SW415-ND

U1 1 LM3S3748 IC, Microcontroller ARM Cortex TQFP-100

Luminary Luminary LM3S3748

U2 1 FAN4174IS5X_NL IC, Op-amp Rail-to-Rail SOT23-5

Fairchild Mouser 512-FAN4174IS5X

Table C-1. LM3S3748 Bill of Materials (Continued)


34 April 2, 2008


U3a 1 KWH015C04-F01 LCD Module 128x128 1.5" CTN

Formike Display

Wan Display

KWH015C04-F01

U3b 1 SFW20R-2STE1LF Connector, 20 way 1mm ZIF flat-flex connector

FCI Digikey 609-1914-2-ND

U4 1 CAT93C46YI-G / AT93C46A-10TU-2.7

Serial Eeprom 1Kbit TSSOP8

Catalyst Atmel

Mouser Digikey

CAT93C46YI-G

U5 1 FT2232D IC, USB to Serial Interface TQFP48

Ftdi Ftdi FT2232D

U6 1 LC4032V-75TN48C IC, CPLD 32 macro-cell TQFP48

Lattice Arrow LC4032V-75TN48C

U7 1 TPS2051BDGN IC, Fault protected power switch TSSOP8

TI Digikey 296-17313-1-ND

U8 1 PQ1LA333MSPQ IC, Voltage regulator 3.3V 500mA SOT89-5

Sharp Mouser 852-PQ1LA333MSPQ

U9 1 FSUSB11MTCX IC, Full-speed USB switch TSSOP-14

Fairchild Digikey Mouser

512-FSUSB11MTCX

Y1 1 NX8045GB-8.000000MHZ Crystal, 8.00MHz 8.0x4.5mm SMT

NDK Digikey 644-1018-2-ND

Y2 1 HCM49-4.194304MABJT Crystal, 4.194304MHz HC49US SMT

Citizen Mouser /Digikey

695-HCM49-419-U 300-8529-1-ND

Y3 1 FOXSDLF/060-20 Crystal, 6.00MHz HC49US SMT

Fox Mouser /Digikey

559-FOXSDLF/060-20 631-1008-2-ND

1 EK-LM3S3748-A PCB, FR-4 4-layer Rev A Advanced Advanced EK-LM3S3748

3 3M 4949 Tape, VHB Foam Double coat 45mil 0.25" x 1.25" cut piece

3M Uline S-10144

1 DI002860 Adhesive label for speaker LMI logo 0.5"x0.5”

Drake Drake DI002860

SW3 1 SSSS820201 CUS22-TB

Slide Switch SMT verticle SPCO

Alps Copal Mouser Digikey

688-SSSS820201 563-1105-1-ND

R40, JP33 2 ERJ-3GEY0R00V Resistor 0 Ohms 0603 Panasonic Digikey P0.0GTR_ND

Do not populate J3 (0.05" JTAG header), R41, R43, BAT1

Table C-1. LM3S3748 Bill of Materials (Continued)


April 2, 2008 35

36 April 2, 2008

A P P E N D I X D

Connection DetailsThis appendix contains the following sections:

I/O Breakout Pads (see page 37)

DC Power Jack (see page 38)

ARM Target Pinout (see page 38)

Oscilloscope Header Pinout (see page 38)

I/O Breakout PadsThe LM3S3748 EVB has 55 I/O pads and 13 power pads for a total of 68 pads. Connection can be made by soldering wires directly to these pads, or by using 0.1" pitch headers and sockets.

NOTE: In Table D-1, an asterisk (*) by a signal name (also on the EVB PCB) indicates the signal is typically used for on-board functions. Normally, you should cut the associated jumper (JP1-30) before using an assigned signal for external interfacing.

Table D-1. I/O Breakout Pads

Description Pad No. Description Pad

No. Description Pad No. Description Pad

No.

GND 34 PB7/NMI * 33 GND 68 DBG+5V 67

PH0/CCP6 32 GND 31 +VBUS 66 PA3/SSI0FSS 65

PB6/C0+ * 30 PB4/C0- * 29 PB5/C1- * 64 PH2/FAULT3 * 63

PE2/SSI1RX 28 PE3/SSI1TX 27 PC2/TDI * 62 PC3/TDO/SWO* 61

PD4/ADC7 26 PD5/ADC6 25 PH1/CCP7 60 PA0/U0RX * 59

PD6/ADC5 24 PD7/ADC4 23 PE1/SSI1FSS 58 GND 57

PE7/ADC0 * 22 PE6/ADC1 * 21 PB2/I2C0SCL 56 PE0/SSI1CLK 55

PE5/ADC2 * 20 PE4/ADC3 * 19 GND 54 PG0/PWM4 * 53

PD0/IDX0 18 PD1/PHA0 17 PB3/I2C0SDA* 52 PG3/FAULT2 * 51

PD2/CCP5 16 PD3/CCP0 15 PF1/PWM1 * 50 +3.3V 49

PG2 * 14 PG1/PWM5 * 13 PF3/PWM3 * 48 PF2/PWM2 * 47

PC7/U1TX 12 PC6/U1RX 11 VBAT 46 PF2/FAULT0 45

PC5/C1+ * 10 PC4/CCP4 * 9 GND 44 GND 43

PA1/U0TX * 8 PA2/SSI0CLK* 7 GND 42 PF0/PWM0 * 41

PA4/SSI0RX 6 PA5/SSI0TX * 5 PF6/CCP1 40 PF5/CCP2 39

PA6/I2C1SCL 4 PA7/I2C1SDA 3 PG4/CCP3 * 38 PF7/PHB0 37

PG7/PWM7 * 2 GND 1 PG6/PWM6 * 36 PG5/FAULT1 * 35

April 2, 2008 37

DC Power JackThe EVB provides a DC power jack for connecting an external +5V regulated (±5%) power source as shown in Figure D-1.

Figure D-1. DC Power Jack

The socket is 3.5 mm dia with a 1.3 mm pin. Suitable plugs include CUI PP3-002D.

ARM Target PinoutIn ICDI input and output mode, the LM3S3748 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 (see Table D-2).

Oscilloscope Header PinoutTable D-3 shows the header pinout for the oscilloscope.

Table D-2. ARM Target Pinout

Function Pin Pin Function

VCC (optional) 1 2 nc

nc 3 4 GND

TDI 5 6 GND

TMS 7 8 GND

TCK 9 10 GND

nc 11 12 GND

TDO 13 14 GND

nc 15 16 GND

nc 17 18 GND

nc 19 20 GND

Table D-3. Oscilloscope Header Pinout

Pad No. Description Test Wiring

1 Test Point 1 Wire this pair

2 Channel 1 +

Center Positive (+)

38 April 2, 2008


3 Channel 1- Wire this pair

4 GND

5 Test Point 2 Wire this pair

6 Channel 2 +

7 Channel 2 - Wire this pair

8 GND

Table D-3. Oscilloscope Header Pinout (Continued)

Pad No. Description Test Wiring

April 2, 2008 39

40 April 2, 2008

A P P E N D I X E

ReferencesIn addition to this document, the following references are included on the Stellaris LM3S3748 Evaluation Kit documentation CD-ROM and are also available for download at www.luminarymicro.com:

Stellaris LM3S3748 Evaluation Kit Quickstart Guide for appropriate tool kit (see “Evaluation Kit Contents,” on page 12)

Stellaris LM3S3748 Evaluation Kit Read Me First

Stellaris Family Peripheral Driver Library User’s Guide, publication PDL-LM3S3748

Stellaris LM3S3748 Microcontroller Data Sheet, publication DS-LM3S3748

Additional references include:

Formike Electronic KWH015C04-F01 LCD Display Data Sheet

Sitronix ST7637 Color LCD Controller/Driver Data Sheet

Future Technology Devices Incorporated FT2232D Data Sheet

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

April 2, 2008 41

http://www.keil.com/arm/rvmdkkit.asp

http://www.iar.com

http://www.codesourcery.com/gnu_toolchains/arm/

42 April 2, 2008

A P P E N D I X F

Contact Information

Company InformationLuminary Micro, Inc. designs, markets, and sells ARM Cortex-M3-based microcontrollers (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 350Austin, TX 78746Main: +1-512-279-8800Fax: +1-512-279-8879http://www.luminarymicro.com

Support InformationFor support on Luminary Micro products, contact:

[email protected]+1-512-279-8800, ext. 3

April 2, 2008 43

44 April 2, 2008

Documents

Stellaris® LM3S3748 Evaluation Kit User's Manual · See the LM3S3748 microcontroller data sheet (order number DS-LM3S3748) for complete device details. The LM3S3748 microcontroller