4D SYSTEMS TURNING TECHNOLOGY INTO ART DATASHEET 2.8” microLCD PICASO Display µLCD-28PTU Document Date: 15th January 2014 Document Revision: 1.7 Uncontrolled Copy when printed or downloaded.
microLCD PICASO DISPLAY Overview The µLCD-28PTU is a compact and cost effective Intelligent Display Module packed with plenty of features, ready to become the GUI for your target application. It is the perfect choice for many applications that require a front end smart graphics interface. Embedded at the heart of the design is the PICASO processor, which is driven by a highly optimised virtual core engine called EVE (Extensible Virtual Engine).
microLCD PICASO DISPLAY Contents 1. Description ............................................................................................................................. 4 2. Features ................................................................................................................................. 4 3. Pin Configuration and Summary .............................................................................................. 5 4. Hardware Interface - Pins.................................
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU 1. Description 2. Features The μLCD-28PTU module demonstrates class and finesse in the microLCD range, featuring a 2.8’’ 240x320 screen resolution that is the ideal size for displaying detailed graphics for many interactive touch applications. • Low-cost 2.8" LCD-TFT display graphics user interface solution.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU 3. Pin Configuration and Summary P1 – Lithium Battery Header H1 – I/O Expansion Header H2 – Programming Header H1 1 H2 2 1 9 29 Pin Symbol I/O 1 2 N/C RES I 3 4 5 6 N/C GND N/C RX P I 7 8 N/C TX O 9 10 N/C +5V P P1 2 1 2 5 6 10 30 H2 Pin Outs (Programming Header) Description Not connected Master Reset signal. Internally pulled up to 3.3V via a 10K resistor. An active Low pulse greater than 2 micro-seconds will reset the module.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU Pin Symbol I/O 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 IO1 SPKIO2 SPK+ IO3 SCL IO4 SDA IO5 N/C GND N/C GND +5V BUS7 AUDIO BUS6 AUDENB BUS5 RES BUS4 3.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU 4. Hardware Interface - Pins The μLCD-28PTU provides both a hardware and software interface. This section describes in detail the hardware interface pins of the device. Serial Ports - COM0, COM1 UARTS The μLCD-28PTU has two dedicated hardware Asynchronous Serial ports that can communicate with external serial devices. These are referred to as the COM0 and the COM1 serial ports. The primary features are: • Full-Duplex 8 bit data transmission and reception.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU simply connect an Input/Output to the IO2 pin on the H1 header. When using IO2 for Battery Status, simply leave the IO2 pin on the H1 header disconnected, and read the status of IO2 as an Input. (See 6.4. ‘Lithium Batteries’ for more information). IO3 pins (Peripheral Supply pin): IO3 is controllable via the processor, or via the H2 Interface pin driven by an external circuit.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU 5. PmmC/Firmware Programming 6. Module Features The PICASO processor used in the μLCD-28PTU module is a custom graphics processor. All functionality including the high level commands are built into the chip. This chip level configuration is available as a Firmware/PmmC (Personalitymodule-micro-Code) file. The μLCD-28PTU module is designed to accommodate most applications. Some of the main features of the module are listed below.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU The data sheet for the processor is available from the http://www.4dsystems.com.au website: “PICASO-Processor-Datasheet-REVx.pdf” Audio Audio playback support in the PICASO Processor enables the μLCD-28PTU module to play audio WAV files stored in the micro-SD memory card. PWM and an on-board audio amplifier with 8Ω speaker ensure ample audio output capability.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU FAT16 option. The formatting of the card can be done on any PC system with a card reader. Select the appropriate drive and choose the FAT16 (or just FAT in some systems) option when formatting. The card is now ready to be used in the PICASO based application. The μLCD-28PTU also supports high capacity HC memory cards (4GB and above). The available capacity of SD-HC cards varies according to the way the card is partitioned and the commands used to access it.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU 7. Display Precautions 8. Hardware Tools • Avoid having to display the same image/object The following hardware tools are required for full control of the μLCD-28PTU module. on the screen for lengthy periods of time. This will cause a burn-in which is a common problem with all types of display technologies. Blank the screen after a while or dim it very low by adjusting the contrast. Better still; implement a screen saver feature.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU Development Hardware 9. 4DGL - Software Language 4D Systems has designed a development board compatible with the μLCD-28PTU, enabling easy prototyping to take place and to experiment with the μLCD-28PTU display module. The μLCD-28PTU utilises the PICASO processor, which belongs to a family of processors powered by a highly optimised soft core virtual engine, EVE (Extensible Virtual Engine).
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU Workshop 4 – Designer Environment 10. 4D Systems - Workshop 4 IDE Workshop 4 is a comprehensive software IDE that provides an integrated software development platform for all of the 4D family of processors and modules. The IDE combines the Editor, Compiler, Linker and Down- Loader to develop complete 4DGL application code. All user application code is developed within the Workshop 4 IDE.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU Workshop 4 – ViSi Genie Environment ViSi Genie is a breakthrough in the way 4D Systems’ graphic display modules are programmed. It is an environment like no other, a code-less programming environment that provides the user with a rapid visual experience, enabling a simple GUI application to be ‘written’ from scratch in literally seconds. ViSi Genie does all the background coding, no 4DGL to learn, it does it all for you.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU 11. Starter Kit 4D Systems highly recommends all first time buyers of 4D Systems’ displays, to purchase the Starter Kit when purchasing their first 4D Systems display solution. The Starter Kit provides all the hardware that is required to get the user up and running.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU 12.
4D SYSTEMS µLCD-28PTU microLCD PICASO DISPLAY 13. Mechanical Details © 2014 4D SYSTEMS Page 18 of 22 www.4dsystems.com.
4D SYSTEMS µLCD-28PTU microLCD PICASO DISPLAY 14. Schematic Diagram © 2014 4D SYSTEMS Page 19 of 22 www.4dsystems.com.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU 15. Specifications and Ratings ABSOLUTE MAXIMUM RATINGS Operating ambient temperature ................................................................................................... -15°C to +65°C Storage temperature .......................................................................................................................... -30°C +70°C Voltage on any digital input pin with respect to GND ......................................................
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU OPTICAL CHARACTERISTICS Parameter Contrast ratio (Centre point) Condition Min -- Typ 250 Max -- Units -- 200 220 250 Cd/m2 80 -- -- % -- 30 -- ms 0.283 0.303 0.323 0.305 0.325 0.345 Red, Rx 0.606 0.626 0.646 Red, Ry 0.614 0.334 0.354 Green, Gx 0.257 0.277 0.297 Green, Gy 0.529 0.549 0.569 Blue, Bx 0.122 0.142 0.
microLCD PICASO DISPLAY 4D SYSTEMS µLCD-28PTU 16. Legal Notice Proprietary Information The information contained in this document is the property of 4D Systems Pty. Ltd. and may be the subject of patents pending or granted, and must not be copied or disclosed without prior written permission. 4D Systems endeavours to ensure that the information in this document is correct and fairly stated but does not accept liability for any error or omission.
