Features
Complete Module for Standalone Use:
Atmel XMEGA256A3BU MCU
Projected Capacitive Multi Touch Controller
2.8in LCD
USB Connectivity
SD Card
Expansion Header for Development (PCB Rev A2)
PDA TM2801:
MCU:
ATXMEGA256A3BU
2.8in PCAP
256KBytes Flash / 8Kbytes Boot
16KBytes RAM
Touch Module
4KBytes EEPROM
USB 2.0 Full speed (12Mbps) and low speed (1.5Mbps)
Storage:
SD/MMC
Touch:
Atmel maXTouch mXT143E Touch Controller
Supports up to 8 touches
Display:
Displaytech SDT028ATFT 2.8in LCD
320x240 resolution
20 ms typical response time
SPI interface via ILI9341 / ILI9320 (or compatible)
Optional support for 18-bit parallel interface
White LED backlight
Cover Panel:
1.2mm Soda Lime Glass
Optional 0.7mm Gorilla Glass
Expansion Header: (PCB Rev A2)
Hirose DF40C series mezzanine
connector
I2C, SPI and USART Buses
Interrupts
I/O
ADC, DAC, Analog Comparator
Timer OC, PWM/AWeX
1303-5-6
Contents
1 Module Overview 4
1.1 PCB Connections 4
1.2 Debug Connector J1 6
1.3 Touch Sensor Flex Connector J2 6
1.4 Display Flex Connector J3 7
1.5 Programming/Debug J4 7
1.6 Universal Serial Bus (USB) J5 8
1.7 Expansion J6 8
1.8 SD/MMC U5 9
1.9 XMEGA U4 10
2 Overview of the 2.8in PCAP Touch Module 11
2.1 Introduction 11
2.2 Understanding Unfamiliar Concepts 12
2.3 XMEGA A3BU Microcontroller 12
2.3.1 Atmel Software Framework 12
2.4 LCD Panel 12
2.4.1 Atmel Software Framework 13
2.5 maXTouch Capacitive Touchscreen Controller 13
2.5.1 maXTouch Controller Interface 13
2.6 SD/MMC Connector 14
2.6.1 Atmel Software Framework 14
2.7 Expansion Interface 14
3 Getting Started 15
3.1 Hardware Setup 15
3.2 Demo Firmware 15
3.3 Loading Firmware 15
3.3.1 Programming Tools 15
3.3.2 Programming the Example Code 15
4 Specifications 16
4.1 Mechanical Specifications 16
4.2 Absolute Maximum Specifications 18
4.3 Recommended Operating Conditions 18
4.4 DC Specifications 18
4.5 I2C-compatible Bus Specifications 18
4.6 Power Consumption 19
2 PDA TM2801: 2.8in PCAP Touch Module 1303-5-6