Atmel AVR1909 User Manual
AVR1909: Display Xplained Hardware User's
Guide
Features
• 240 x 320 (QVGA) graphical TFT display
- With resistive touch
- LED Backlight
- Internal controller
• Simple SPI interface for control
• Digital (PWM) control interface for backlight
• One 40pin, 0.5mm FPC connector
• Display and backlight powered by single 3.3V
1 Introduction
The Display Xplained module gives the possibility to evaluate a 240 x 320 pixel
(QVGA) graphical RGB TFT display with a 4-wire touch interface and LED
backlight. The display is interfaced with a simple SPI interface to send and receive
commands and data. The Xplain kit provides tested low–level drivers and highlevel functions in order to get the developer quickly up to speed with his application
development.
Figure 1-1. Display Xplained evaluation module.
8-bit
Microcontrollers
Application Note
Rev. 8297A-AVR-04/10
2 Related Items
3 General information
Datasheet for the LCD module (ET024006DHU) from EDT can be found here:
http://www.farnell.com/datasheets/86386.pdf
Datasheet for the graphical controller (HX8347-A) from Himax can be obtained by
contacting EDT. It may also found on the web.
Firmware for Xplain kit can be found here:
http://www.atmel.com/Xplain
Also checkout these application note:
• AVR1913: Display Xplained Firmware – Getting Started training
• AVR1921: Reprogramming the Xplain AT90USB1287 and ATxmega128A1
• AVR1922: Xplain Board Controller Firmware
The LCD module (ET024006DHU from EDT) has a 240 x 320 pixel resolution, with up
to 6 bit pr color, giving 256k colors. The Display Xplained board uses a regular 4-wire
SPI interface to access the display. The touch interface is a 4-wire resistive touch that
should be interfaced to ADC/IO pins to work. The backlight system has three white
LEDs in parallel that can draw up to 60mA at 3.3V. For further details see the
datasheet from EDT.
Figure 3-1. Overview of the Xplain kit backside.
2
AVR1909
8297A-AVR-04/10
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