Texas Instruments Stellaris IDM-L35 User manual

RDK-IDM-L35-01 Copyright © 2008–2009 Texas Instruments
User’s Manual
Stellaris® Intelligent Display Module
(IDM-L35) with 3.5" Landscape Display
Reference Design Kit

2August 7, 2009
Copyright
Copyright © 2008–2009 Texas Instruments, Inc. All rights reserved. Stellaris and StellarisWare are registered trademarks of Texas Instruments.
ARM and Thumb are registered trademarks, and Cortex is a trademark of ARM Limited. Other names and brands may be claimed as the property
of others.
Texas Instruments
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Austin, TX 78746
Main: [phone]
Fax: [phone]
http://www.luminarymicro.com

Stellaris® Intelligent Display Module with 3.5" Display
August 7, 2009 3
Table of Contents
Chapter 1: Stellaris® Intelligent Display Module with3.5" Landscape Display Reference Design Kit Over-
view....................................................................................................................................................................9
Kit Contents......................................................................................................................................................10
Using the RDK..................................................................................................................................................10
Features............................................................................................................................................................10
Board Overview ................................................................................................................................................11
Chapter 2: Hardware Description..................................................................................................................13
Block Diagram ..................................................................................................................................................13
Functional Description ......................................................................................................................................14
Microcontroller, Reset, and JTAG (Schematic page 1).................................................................................14
Microcontroller ..........................................................................................................................................14
Debugging.................................................................................................................................................14
LCD Panel and Voltage Regulators (Schematic page 2)..............................................................................14
LCD Panel.................................................................................................................................................14
Touch Panel..............................................................................................................................................15
High Power LED Driver.............................................................................................................................15
3.3 V DC Regulator...................................................................................................................................15
UART, microSD Card Slot, Speaker, Analog Inputs, Digital I/O (Schematic page 3)...................................15
RS232 Serial Port .....................................................................................................................................15
microSD Card Slot ....................................................................................................................................15
Speaker.....................................................................................................................................................15
Analog Inputs............................................................................................................................................16
Digital I/O ..................................................................................................................................................16
Serial Header............................................................................................................................................16
Chapter 3: Software Development ................................................................................................................17
Software Description.........................................................................................................................................17
Source Code.....................................................................................................................................................17
Tool Options .....................................................................................................................................................17
Programming the IDM.......................................................................................................................................18
Appendix A: Schematics................................................................................................................................21
Appendix B: Bill of Materials (BOM) .............................................................................................................25
Appendix C: Component Details...................................................................................................................29

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Stellaris® Intelligent Display Module with 3.5" Display
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List of Figures
Figure 1-1. Intelligent Display Module with 3.5" Landscape Display .................................................................9
Figure 1-2. IDM-L35 Board Overview Diagram ...............................................................................................11
Figure 2-1. Intelligent Display Module with 3.5” Display Block Diagram..........................................................13
Figure 2-2. Debug Connection Pinout .............................................................................................................14
Figure C-1. Component placement plot for top................................................................................................29
Figure C-2. Component placement plot for bottom ..........................................................................................30

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Stellaris® Intelligent Display Module with 3.5" Display
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List of Tables
Table B-1. RDK-IDM-L35 Bill of Materials ......................................................................................................25

8August 7, 2009

August 7, 2009 9
Stellaris® Intelligent Display Module with 3.5"
Landscape Display Reference Design Kit Overview
Stellaris® Intelligent Display Module with 3.5" Landscape Display (MDL-IDM-L35) Reference
Design Kit (RDK-IDM-L35) is a highly integrated QVGA touch-panel module for automation and
instrumentation applications. The compact design is based on the Stellaris® LM3S1958
microcontroller; a highly integrated microcontroller incorporating a 32-bit ARM® Cortex™-M3 core.
Development of software for the RDK-IDM-L35 is simplified by using the Stellaris comprehensive
graphics library and ARM development tools from our tools partners. The IDM-L35 RDK includes
the touch panel module (MDL-IDM-L35), a documentation CD, power supply, and cables.
The IDM-L35 design uses a Stellaris® LM3S1958 microcontroller to handle display functions,
touchscreen control, networking, and peripheral functions. Only a few additional ICs are necessary
to complete the design. The entire circuit is built on a compact four-layer printed circuit board. All
design files are provided on the RDK-IDM-L35 CD.
This user's manual provides comprehensive information on the reference design hardware and
software.
Figure 1-1. Intelligent Display Module with 3.5" Landscape Display
CHAPTER 1

Stellaris® Intelligent Display Module with 3.5" Landscape Display Reference Design Kit Overview
10 August 7, 2009
Kit Contents
The RDK-IDM-L35 reference design kit comes with the following:
MDL-IDM-L35 Intelligent QVGA 3.5” Touch Panel
USB to TTL Serial cable
Debug adapter
–Adapts 10-pin fine-pitch ARM JTAG connector to standard 20-pin connector
Reference Design Kit CD
–Complete documentation, including Quickstart and User's Guides
–Graphical User Interface (GUI) installer
–Complete source code, schematics, and PCB gerber files
The source code can be modified and compiled using tools from Keil and IAR as well as the Gnu C
Compiler for ARM Cortex-M3. Complete GCC tool-chains include those from CodeSourcery and
CodeRed.
Using the RDK
The recommended steps for using the RDK are:
Follow the Quickstart guide included in the kit. The Quickstart guide will help get the
display module up and running in minutes.
Use your preferred ARM tool-chain and the Stellaris Graphics library to develop a
touch-panel application. Software applications are loaded into IDM flash memory using a
JTAG/SWD debug interface or via the serial port using the included boot loader software. See
Chapter 3, “Software Development,” for the programming procedure. The Stellaris Graphics
Library Software Reference Manual and the Stellaris Peripheral Driver Library Software
Reference Manual each contain specific information on software structure and function.
Customize and integrate the hardware to suit an end application. This user's manual is an
important reference for understand circuit operation and completing hardware modification.
Features
The RDK-IDM-L35 reference design kit provides the following features:
Bright QVGA LCD touch-screen display
–262 K colors, 2.8" QVGA 320 x 240 pixels
–White LED backlight with resistive touch panel
Serial connectivity options
–UART serial port with RS232 signal levels
–UART serial port with TTL signal levels
–Synchronous serial port
High performance microcontroller and large memory
–32-bit ARM® Cortex™-M3 core
–256 KB Main Flash memory, 64 KB SRAM