B O A R D D A T A S H E E T Intelligent Display Module with 3.5" Landscape Display Ordering Information Product No. MDL-IDM-L35 Description Stellaris® Intelligent Display Module with 3.5" Landscape Display for Single-Unit Packaging MDL-IDM-L35-B Stellaris® Intelligent Display Module with 3.5" Landscape Display for Volume Packaging RDK-IDM-L35 Stellaris® Intelligent Display Module with 3.5" Landscape Display Reference Design Kit (includes MDL-IDM-L35 board) Figure 1. Intelligent Display Module with 3.5" Landscape Display RDK Contents General Description . . . . . . . . . . . . . . . . . . . . 1 Feature Summary . . . . . . . . . . . . . . . . . . . . . . 2 Module Block Diagram . . . . . . . . . . . . . . . . . . 3 Operational Specifications . . . . . . . . . . . . . .3 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Software Development . . . . . . . . . . . . . . . . . . 5 Programming the MDL-IDM-L35 . . . . . . . . . . 6 Reference Design Kit Contents . . . . . . . . . . . 6 Mechanical Installation . . . . . . . . . . . . . . . . . 6 Additional Information . . . . . . . . . . . . . . . . . . 7 General Description The Stellaris® Intelligent Display Module with 3.5" Landscape Display (MDL-IDM-L35-L35) offer a complete graphical touch-screen user interface solution for control, automation, and instrumentation applications. The compact design is based on a Stellaris® LM3S1958 microcontroller; a highly integrated controller incorporating a 32-bit ARM® Cortex™-M3 core. Development of software for the IDM module is simplified by using the comprehensive Stellaris graphics library and ARM development tools from our tools partners. First-time users should purchase the RDK-IDM-L35 Reference Design Kit which includes the touch panel module, a documentation CD, and cables. See the RDK-IDM-L35 Quickstart Guide and RDK-IDM-L35 User’s Manual for complete technical details on using and customizing the Intelligent Display Module. Intelligent Display Module with 3.5" Landscape Display 1 B O A R D D A T A S H E E T Feature Summary Highlighted capabilities of the MDL-IDM-L35 include: Bright QVGA LCD Display with touch Serial connectivity Easy to customize – full source code and design files included Flexible power supply options Compact size simplifies system integration Features The MDL-IDM-L35 provides the following features: LCD display – 3.5” QVGA 320 x 240 pixels – 16-bit color – White LED backlight – 4-wire resistive touch panel Serial communications – UART serial port with RS232 signal levels – UART serial port with TTL signal levels – Default 115.2k,8,n,1 operation Stellaris® microcontroller – 32-bit ARM® Cortex™-M3 – 50 MHz operation Memory – 256 KB main flash memory – 64 KB SRAM – 168 KB image RAM – microSD slot (typically 1 GB storage) Power-supply options – 5 V DC jack – 5 V Terminal block – 5 V Serial header Peripherals – Four analog measurement inputs – 16 digital I/O lines – Magnetic buzzer, PWM controlled Software – Example applications included – Supports development tools from Keil, IAR, Code Sourcery, and Code Red Technologies – Stellaris® Graphics Library Intelligent Display Module with 3.5" Landscape Display 2 B O A R D D A T A S H E E T Module Block Diagram Figure 2 shows the block diagram for the MDL-IDM-L35. Figure 2. Block Diagram Analog ADC (4) Data QVGA 3.5" LCD Panel ESD Protected LCD Driver 5V Ctrl Stellaris LM3S1958 Microcontroller Analog touch signals Digital I/O (4) ESD Protected microSD card microSD Speaker RS232 Serial Digital I /O (4) Digital I /O (8) 5V DC Jack 3.3V 3.3V Regulator Serial Header 5V Operational Specifications Table 1 shows the operating parameters for the MDL-IDM-L35. Table 1. Operating Specifications Parameter Name Min Nom Max Unit 4.5 5 5.5 V DC – – 300 mA Operating Temperature Range -20 – +50 °C Storage Temperature Range -30 – +70 °C Power Supply Connection Options DC Jack J7 Terminal Block J1 Serial Header J8 Required Supply Current Environment Intelligent Display Module with 3.5" Landscape Display 3 B O A R D Table 1. D A T A S H E E T Operating Specifications (Continued) Parameter Name Min Nom Max Unit Brightness 210 220 – Cd/m2 View Angle (V) -10 – +35 deg View Angle (H) -45 – +45 deg Contrast Ratio 340 400 – – 0 – 3 V Analog Inputs – Electrical Limits -0.3 – 3.3 V Digital Inputs - Low level (VIL) -0.3 – 0.8 V Digital Inputs - High level (VIH) 2.0 – 5.0 V Digital Outputs - Low level (VOL) – – 0.4 V Digital Outputs - High level (VOH) 2.4 – – V – – 120 Kbps Transmitter Voltage Swing ±5.0 ±5.4 – Vdc Input Threshold Low 0.6 1.2 – – Input Threshold High – 1.5 2.4 – Display Peripherals Analog Input Range RS232 Data Rate Power The IDM-L35 requires 5 V DC for operation, which can be applied to one of the three power supply board connectors (see page 3). The RDK includes a USB serial cable that provides power via the serial header connector. In all cases, the power supply must be regulated within the electrical limits listed in Table 1. Wiring Figure 3 shows all possible electrical connections, including RS232, analog inputs, and digital I/O. The actual functionality of the peripheral connections is determined by the application software. Intelligent Display Module with 3.5" Landscape Display 4 B O A R D D A T A S H E E T Figure 3. Connection Diagram Serial Header JTAG/SWD Digital I /O (8) Digital I /O (4) microSD Card 1 Analog 5V Inputs (4) GND Digital I /O (4) RS232 Serial Port 5V GND Software Development The MDL-IDM-L35 ships with a factory-programmed example application. This application must be replaced with a program specific to the end product. Development requires the use of a compiler capable of generating code for an ARM® Cortex™-M3 processor. Visit www.luminarymicro.com to download evaluation versions of suitable development tools. The Stellaris Graphics Library accelerates software development by providing a range of display-related extensions to the standard StellarisWare™ Software. The Graphics Library includes widgets, low-level drawing primitives, and display drivers. Graphics Library widgets encapsulate the ability to render a GUI element, detect if a touchscreen press occurred within its bounds, and react to presses. Widgets may be used in a hierarchical manner to provide groups of associated widgets, such as radio buttons. Examples of widgets include check boxes, buttons, sliders, and images. Drawing primitives are elementary geometric items. The Graphics Library includes primitives such as lines, circles, filled circles, rectangles, and fonts. A selection of pre-built fonts is included and additional user fonts may be added to the library. The display driver provides low-level code for initializing the display controller and a method for setting pixels. Graphics Library includes a display driver optimized for the RDK-IDM-L35 LCD panel and therefore, users do not need low-level knowledge of LCD-driver operation. Refer to the Stellaris® Graphics Library User’s Guide for full details. Intelligent Display Module with 3.5" Landscape Display 5 B O A R D D A T A S H E E T Programming the MDL-IDM-L35 Once an application has been compiled and linked to a binary file, it can be loaded into the MDL-IDM-L35 by two different methods: Over the RS232 serial port using the Stellaris serial boot loader Using the JTAG or SWD port and an In-circuit Debug Interface (ICDI) Both methods are supported by the LMFlash utility included on the software and documentation CD and available from the www.luminarymicro.com web site. The RDK-IDM-L35 includes an adapter to convert the fine-pitch, 10-way debug header to the common 20-pin ARM debug header. Figure 4. Fine-Pitch Debug Header Pin Assignments 1 2 3.3V GND GND n/c GND TMS/ SWDIO TCK/ SWCLK TDO TDI SRSTn 9 10 Reference Design Kit Contents The RDK-IDM-L35 RDK includes the following: MDL-IDM-L35 Intelligent QVGA Touch Panel with Ethernet USB to TTL serial USB cable Debug adapter – Fine pitch to 0.1” standard header Documentation and source code CD Mechanical Installation The MDL-IDM-L35 mounts to a front panel mounting using four screws and appropriate stand-offs. Intelligent Display Module with 3.5" Landscape Display 6 B O A R D D A T A S H E E T Figure 5. MDL-IDM-L35 Module Dimensions 3.10 Ø 0.125 3.02 3.10 2.51 2.80 0.05 2.80 0.25 Reset switch location 0.06 0.17 0.43 1.000 Extent of IDM-L35 components Standoffs installed in RDK version only Additional Information The following documents are available for download at www.luminarymicro.com: Stellaris® Intelligent Display Module with 3.5" Landscape Display Reference Design Kit User’s Manual, document order number RDK-IDM-L35 Stellaris Peripheral Driver Library User’s Guide, document order number SW-DRL-UG Stellaris Graphics Library User’s Guide, document order number SW-GRL-UG RDK-IDM-L35 Firmware Development Package User's Guide, document order number SW-RDK-IDM-L35 Intelligent Display Module with 3.5" Landscape Display 7 Important Notice Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. 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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. RDK-IDM-L35-DS-01 August 10, 2009