Atmel QT5 Xplained Pro Manual de usuario
Atmel QTouch
QT5 Xplained Pro User Guide
USER GUIDE
Preface
Atmel® QT5 Xplained Pro kit is an extension board that enables the
evaluation of mutual-capacitance touch using the Peripheral Touch
Controller (PTC) module. The kit shows how easy it is to design a nice
looking capacitive touch user interface for the PTC. The kit includes one
board with a curved QTouch® mutual-capacitance slider and two QTouch
mutual-capacitance buttons. In addition it has 16 LEDs arranged as two 7-
segment digits separated with a colon.
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Table of Contents
Preface............................................................................................................................ 1
1. Introduction................................................................................................................3
1.1. Features....................................................................................................................................... 3
1.2. Kit Overview................................................................................................................................. 3
1.3. Kit Compatibility............................................................................................................................3
2. Getting Started...........................................................................................................5
2.1. Xplained Pro Quick Start.............................................................................................................. 5
2.2. Design Documentation and Relevant Links................................................................................. 5
3. Xplained Pro.............................................................................................................. 6
3.1. Hardware Identification System....................................................................................................6
3.2. Xplained Pro Headers and Connectors........................................................................................6
4. Hardware Users Guide.............................................................................................. 8
4.1. Electrical Characteristics.............................................................................................................. 8
4.2. Headers and Connectors..............................................................................................................8
4.3. Peripherals................................................................................................................................... 9
5. Hardware Revision History and Known Issues........................................................10
5.1. Identifying Product ID and Revision........................................................................................... 10
5.2. Revision 4...................................................................................................................................10
6. Document Revision History......................................................................................11
7. Evaluation Board/kit Important Notice..................................................................... 12
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1. Introduction
1.1. Features
•QTouch
•One 4-channel (4X x 1Y) mutual-capacitance curved slider
•Two mutual-capacitance buttons
•LEDs
•16 LEDs arranged as two 7-segment digits separated with a colon
•IS31FL3728 I2C LED matrix controller from ISSI
•Xplained Pro hardware identification system
1.2. Kit Overview
Atmel QT5 Xplained Pro extension is designed specifically for Xplained Pro MCU boards featuring an
MCU with a built-in peripheral touch controller.
The extension board can be used to explore the touch functions on the PTC module in mutual-
capacitance mode.
Figure 1-1 QT5 Xplained Pro Extension Board
1.3. Kit Compatibility
This kit is only supported by Xplained Pro MCU boards that have an MCU with a built-in PTC and a
matching pinout that connects all sensors of the extension. There is no guarantee that every Xplained Pro
MCU board with a device that has PTC will manage to match the touch signal pinout to the extension
headers.
Currently supported MCU boards are:
•SAM D11 Xplained Pro
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•SAM C21 Xplained Pro
•SAM L21 Xplained Pro
•SAM L22 Xplained Pro
•SAM R21 Xplained Pro
•ATmega324PB Xplained Pro
Other future Xplained Pro MCU board designs may also support QT5 Xplained Pro.
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2. Getting Started
2.1. Xplained Pro Quick Start
Three steps to start exploring the Atmel Xplained Pro platform:
1. Download Atmel Studio.
2. Launch Atmel Studio.
3. Connect QT5 Xplained Pro to an Xplained Pro MCU board and connect a USB cable to the DEBUG
USB port on the Xplained Pro MCU board.
When the Xplained Pro MCU kit is connected to your computer for the first time, the operating system will
perform a driver software installation. The driver file supports both 32- and 64-bit versions of Microsoft®
Windows® XP, Windows Vista®, Windows 7, and Windows 8.
Once the Xplained Pro MCU board is powered the green power LED will be lit and Atmel Studio will auto
detect which Xplained Pro MCU- and extension board(s) are connected. Atmel Studio will present
relevant information like datasheets and kit documentation. The kit landing page in Atmel Studio also has
the option to launch Atmel Software Framework (ASF) example applications for the kit. The target device
is programmed and debugged by the on-board Embedded Debugger and therefore no external
programmer or debugger tool is needed.
2.2. Design Documentation and Relevant Links
The following list contains links to the most relevant documents and software for QT5 Xplained Pro:
•Xplained Pro products - Atmel Xplained Pro is a series of small-sized and easy-to-use evaluation
kits for Atmel microcontrollers and other Atmel products. It consists of a series of low-cost MCU
boards for evaluation and demonstration of features and capabilities of different MCU families.
•Atmel QTouch® Library PTC - QTouch Library for Atmel AVR® and ARM®-based microcontrollers.
•Atmel QTouch® Composer - Tool for developing capacitive buttons, sliders, and wheels
applications.
•Atmel Studio - Free Atmel IDE for development of C/C++ and assembler code for Atmel
microcontrollers.
•Atmel Data Visualizer - Atmel Data Visualizer is a program used for processing and visualizing
data. Data Visualizer can receive data from various sources such as the Embedded Debugger Data
Gateway Interface found on Xplained Pro boards and COM ports.
•Design Documentation - Package containing CAD source, schematics, BOM, assembly drawings,
3D plots, layer plots etc.
•Hardware Users Guide in PDF format - PDF version of this User Guide.
•QT5 Xplained Pro on Atmel webpage - Atmel website link.
•Integrated Silicon Solution Inc. - IS31FL3728 LED matrix controller manufacturer homepage.
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3. Xplained Pro
Xplained Pro is an evaluation platform that provides the full Atmel microcontroller experience. The
platform consists of a series of Microcontroller (MCU) boards and extension boards, which are integrated
with Atmel Studio, have Atmel Software Framework (ASF) drivers and demo code, support data
streaming, and more. Xplained Pro MCU boards support a wide range of Xplained Pro extension boards,
which are connected through a set of standardized headers and connectors. Each extension board has
an identification (ID) chip to uniquely identify which boards are connected to an Xplained Pro MCU board.
This information is used to present relevant user guides, application notes, datasheets, and example
code through Atmel Studio.
3.1. Hardware Identification System
All Xplained Pro compatible extension boards have an Atmel ATSHA204 CryptoAuthentication™ chip
mounted. This chip contains information that identifies the extension with its name and some extra data.
When an Xplained Pro extension is connected to an Xplained Pro MCU board the information is read and
sent to Atmel Studio. The Atmel Kits extension, installed with Atmel Studio, will give relevant information,
code examples, and links to relevant documents. The table below shows the data fields stored in the ID
chip with example content.
Table 3-1 Xplained Pro ID Chip Content
Data field Data type Example content
Manufacturer ASCII string Atmel'\0'
Product Name ASCII string Segment LCD1 Xplained Pro'\0'
Product Revision ASCII string 02'\0'
Product Serial Number ASCII string 1774020200000010’\0’
Minimum Voltage [mV] uint16_t 3000
Maximum Voltage [mV] uint16_t 3600
Maximum Current [mA] uint16_t 30
3.2. Xplained Pro Headers and Connectors
3.2.1. Xplained Pro Standard Extension Header
All Xplained Pro kits have one or more dual row, 20-pin, 100mil extension header. Xplained Pro MCU
boards have male headers, while Xplained Pro extensions have their female counterparts. Note that all
pins are not always connected. All connected pins follow the defined pin-out description in the table
below.
The extension headers can be used to connect a variety of Xplained Pro extensions to Xplained Pro MCU
boards or to access the pins of the target MCU on Xplained Pro MCU boards directly.
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Table 3-2 Xplained Pro Standard Extension Header
Pin number Name Description
1 ID Communication line to the ID chip on an extension board
2 GND Ground
3 ADC(+) Analog to digital converter, alternatively positive part of differential
ADC
4 ADC(-) Analog to digital converter, alternatively negative part of differential
ADC
5 GPIO1 General purpose I/O
6 GPIO2 General purpose I/O
7 PWM(+) Pulse width modulation, alternatively positive part of differential
PWM
8 PWM(-) Pulse width modulation, alternatively negative part of differential
PWM
9 IRQ/GPIO Interrupt request line and/or general purpose I/O
10 SPI_SS_B/
GPIO
Slave select for SPI and/or general purpose I/O
11 I2C_SDA Data line for I2C interface. Always implemented, bus type.
12 I2C_SCL Clock line for I2C interface. Always implemented, bus type.
13 UART_RX Receiver line of target device UART
14 UART_TX Transmitter line of target device UART
15 SPI_SS_A Slave select for SPI. Should preferably be unique.
16 SPI_MOSI Master out slave in line of serial peripheral interface. Always
implemented, bus type.
17 SPI_MISO Master in slave out line of serial peripheral interface. Always
implemented, bus type.
18 SPI_SCK Clock for serial peripheral interface. Always implemented, bus type.
19 GND Ground
20 VCC Power for extension board
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4. Hardware Users Guide
4.1. Electrical Characteristics
QT5 Xplained Pro can be connected to several Xplained Pro MCU boards and manually connected to
other hardware. Xplained Pro MCU board(s) that does not have 3.3V as it's primary target voltage will
read all ID devices on connected extensions to check if they support the target voltage before enabling it
to the extension headers. The table below shows the static content written in the ID chip.
Table 4-1 QT5 Xplained Pro ID Chip Content
Data field Content
Product name QT5 Xplained Pro
Minimum operation voltage 2.7V
Maximum operation voltage 5.5V
Maximum current 45mA
Related Links
Hardware Identification System on page 6
4.2. Headers and Connectors
4.2.1. Xplained Pro Standard Extension Headers
QT5 Xplained Pro implements one Xplained Pro Standard Extension Header (see also section Xplained
Pro Standard Extension Header on page 6) marked with EXT1 in silkscreen. This header make it possible
to connect the board to an Xplained Pro MCU board with an MCU featuring a PTC module. The pinout
definition for the extension header can be seen in the table below.
Table 4-2 QT5 Xplained Pro Extension Header 1
Pin on EXT Function Description
1 ID Communication line to ID chip
2 GND Ground
3 Y0 Y-line 0: Connected to Slider
4 Y1 Y-line 1: Connected to Buttons
5 Not Connected
6 Not Connected
7 X0 X-line 0: Connected to Slider and Buttons
8 X1 X-line 1: Connected to Slider
9 X2 X-line 2: Connected to Slider and Buttons
10 X3 X-line 3: Connected to Slider
11 I2C SDA Connected to LED driver IC
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Pin on EXT Function Description
12 I2C SCL Connected to LED driver IC
13 Not Connected
14 Not Connected
15 Not Connected
16 Not Connected
17 Not Connected
18 Not Connected
19 GND Ground
20 VCC Target supply voltage
4.3. Peripherals
4.3.1. LEDs
There are 16 white LEDs arranged as two 7-segment digits, separated with a colon on the QT5 Xplained
Pro extension board that can be used to visualize touch on the QTouch slider sensor. All LEDs on the
board are driven by the LED matrix driver (IS31FL3728), which is controlled by I2C. For detailed
instructions on how to interface the LED matrix driver, refer to the devices datasheet at http://
www.issi.com/.
4.3.2. Touch Sensors
QT5 Xplained Pro has one 4-channel (4X x 1Y) mutual-capacitance curved slider sensor and two mutual-
capacitance buttons.
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5. Hardware Revision History and Known Issues
5.1. Identifying Product ID and Revision
The revision and product identifier of Xplained Pro boards can be found in two ways; either through Atmel
Studio or by looking at the sticker on the bottom side of the PCB.
By connecting an Xplained Pro MCU board to a computer with Atmel Studio running, an information
window will pop up. The first six digits of the serial number, which is listed under kit details, contain the
product identifier and revision. Information about connected Xplained Pro extension boards will also
appear in the Atmel Kit's window.
The same information can be found on the sticker on the bottom side of the PCB. Most kits will print the
identifier and revision in plain text as A09-nnnn\rr, where nnnn is the identifier and rr is the revision.
Boards with limited space have a sticker with only a QR-code, which contains a serial number string.
The serial number string has the following format:
"nnnnrrssssssssss"
n = product identifier
r = revision
s = serial number
The product identifier for QT5 Xplained Pro is A09-2494.
5.2. Revision 4
Revision 4 of QT5 Xplained Pro (A09-2494/04) is the initial released version. There are no known issues.
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