Atmel® maXTouch® Xplained Pro is an extension board to the Atmel
Xplained Pro evaluation platform. The board enables the user to experiment
with user interface applications with maXTouch and LCD.
Atmel maXTouch Xplained Pro is an extension board for the Xplained Pro platform with a 320x480 RGB
LCD and a capacitive touch sensor with a maXTouch controller. The LCD can be controlled via different
interfaces, including 3- and 4-wire SPI, Parallel and RGB Parallel interface mode using the DIP-switch to
select the interface. The maXTouch Xplained Pro kit connects to any Xplained Pro standard extension
header on any Xplained Pro MCU board using the 20-pin header, but is limited to 3- and 4-wire SPI
mode. maXTouch Xplained Pro also features a standard Xplained Pro LCD connector (FFC), which
enables use of the parallel interfaces. Both connections features SPI interface for the LCD and I2C for the
maXTouch device.
Steps to start exploring the Atmel Xplained Pro platform:
1.Download Atmel Studio.
2.Launch Atmel Studio.
3.Connect maXTouch 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. Connecting maXTouch Xplained Pro to the Xplained Pro MCU Board
Atmel maXTouch Xplained Pro has been designed to be connected to the Xplained Pro header marked
EXT3. However, it is compatible with all Xplained Pro EXT headers. Refer to the pin-out of your Xplained
Pro evaluation kit to find out which Xplained Pro EXT headers that can be used. The Flexible Flat Cable
(FFC) connector can be used if parallel interface from the MCU to the display is used on kits featuring the
Xplained Pro LCD connector. (Only one cables should be connected at the same time.)
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) that is connected. Atmel Studio will present
relevant information like datasheets and kit documentation. The kit landing page in Atmel Studio also
have 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. No external programmer or
debugger tool is needed.
®
2.3. Design Documentation and Relevant Links
The following list contains links to the most relevant documents and software for maXTouch 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 Studio - Free Atmel IDE for development of C/C++ and assembler code for Atmel
microcontrollers.
•EDBG User Guide - User guide containing more information about the on-board Embedded
Debugger.
•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.
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.
Product Serial NumberASCII string1774020200000010’\0’
Minimum Voltage [mV]uint16_t3000
Maximum Voltage [mV]uint16_t3600
Maximum Current [mA]uint16_t30
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.
1IDCommunication line to the ID chip on an extension board
2GNDGround
3ADC(+)Analog to digital converter, alternatively positive part of differential
ADC
4ADC(-)Analog to digital converter, alternatively negative part of differential
ADC
5GPIO1General purpose I/O
6GPIO2General purpose I/O
7PWM(+)Pulse width modulation, alternatively positive part of differential
PWM
8PWM(-)Pulse width modulation, alternatively negative part of differential
PWM
9IRQ/GPIOInterrupt request line and/or general purpose I/O
10SPI_SS_B/
Slave select for SPI and/or general purpose I/O
GPIO
11I2C_SDAData line for I2C interface. Always implemented, bus type.
12I2C_SCLClock line for I2C interface. Always implemented, bus type.
13UART_RXReceiver line of target device UART
14UART_TXTransmitter line of target device UART
15SPI_SS_ASlave select for SPI. Should preferably be unique.
16SPI_MOSIMaster out slave in line of serial peripheral interface. Always
implemented, bus type.
17SPI_MISOMaster in slave out line of serial peripheral interface. Always
implemented, bus type.
18SPI_SCKClock for serial peripheral interface. Always implemented, bus type.
19GNDGround
20VCCPower for extension board
3.2.2. Xplained Pro LCD Extension Connector
The LCD connector provides the ability to connect to display extensions that have a parallel interface.
The connector implements signals for a MCU parallel bus interface and a LCD controller interface as well
as signals for a touch controller. The connector pin-out definition is shown in Table 3-3 Xplained Pro LCD
Connector on page 9. Note that usually only one display interface is implemented, either the LCD
controller or the MCU bus interface.
A FPC/FFC connector with 50 pins and 0.5mm pitch is used for the LCD connector. The connector
XF2M-5015-1A from Omron is used on several Xplained Pro designs and can be used as a reference.
maXTouch 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. maXTouch Xplained Pro ID Chip Content
Data fieldContent
Product namemaXTouch Xplained Pro
Minimum operation voltage3.0V
Maximum operation voltage3.3V
Maximum current50mA
Related Links
Hardware Identification System on page 7
4.2. Headers and Connectors
4.2.1. maXTouch Xplained Pro Extension Headers
maXTouch Xplained Pro implements one Table 3-2 Xplained Pro Standard Extension Header on page 8
marked with XPRO EXTENSION HEADER in silkscreen. This header makes it possible to connect the
board to any Xplained Pro MCU board using a 20-pin ribbon cable (included in kit). maXTouch Xplained
Pro also implements one Table 3-3 Xplained Pro LCD Connector on page 9 marked with XPRO LCD
CONNECTOR in silkscreen. The pin-out definition for the extension header can be seen in Table 4-2
maXTouch Xplained Pro Standard Extension Header on page 11 and the pin-out for the LCD connector
in Table 4-3 maXTouch Xplained Pro Xplained Pro LCD Connector on page 12.
Table 4-2. maXTouch Xplained Pro Standard Extension Header
Pin number NameRGB interface description MCU interface description
49VCC3.3V power supply for extension board
50GNDGround
4.3. Peripherals
4.3.1. maXTouch Capacitive Touch Controller
maXTouch Xplained Pro has a ATMXT112S capacitive touch controller that's accessible over I2C. See
code examples in ASF for how to set up and use the touch controller.
4.3.2. Interface Selector
maXTouch Xplained Pro features a 3-way DIP-switch that is used for configuring the display interface
mode. Setting the switch positions to ON, will result in a high level (1) for the IMx line. See the table below
for interface mode settings.
Table 4-4. maXTouch Xplained Pro DIP-Switch Settings
IM2IM1IM0InterfacePins in use
00018-bit parallel busDB[17:0], CS, D/C, WE, RE
0019-bit parallel busDB[8:0], CS, D/C, WE, RE
01016-bit parallel busDB[15:0], CS, D/C, WE, RE
0118-bit parallel busDB[7:0], CS, D/C, WE, RE
10118-bit RGB parallel mode
1013-wire/9-bit SPI mode
1114-wire/8-bit SPI modeMOSI, MISO, SCLK, CS, D/C
Note:
1.The setting for RGB parallel mode and 3-wire SPI is the same. To be able to use the RGB mode,
the internal configuration registers needs to be set correctly using 3-wire SPI.
4.4. Mounting
The kit includes accessories for mounitng the display module to a MCU board.
•Mounting accessories:
•Four M2.5 x 5 mm screws
•Four M2.5 x 20 mm hex spacers (male to female)
•Four M2.5 x 10 mm hex spacers (female to female)
4.4.1. Board Stacking Options
maXTouch Xplained Pro display module is intended to be mountable on top, on the bottom, or placed
sideways to an Xplained Pro MCU board as shown in the following illustrations.
(1)
(1)
DB[17:0], HSYNC, VSYNC, PCLK,
DE, MOSI, MISO, SCLK, CS
The stacking is supported by spacers and screws. Figure 4-4 Display Module Top-stacked on page 16
shows an display module stacked on top of a MCU board. Figure 4-5 Display Module Bottom-stacked on
page 17 shows an LCD board stacked on the bottom side of a MCU board, note that the MCU board
has been flipped upside down in this drawing. Both of these mounting configurations requires four long
spacers (M2.5 x 20mm, female/male), four short spacers (M2.5 x 10mm, female/female), and four screws
(M2.5 x 5mm).
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 maXTouch Xplained Pro is A09-2171.
5.2. Revision 2
Revision 2 of maXTouch Xplained Pro (2171) is the initial released version.
This evaluation board/kit is intended for use for FURTHER ENGINEERING, DEVELOPMENT,
DEMONSTRATION, OR EVALUATION PURPOSES ONLY. It is not a finished product and may not
(yet) comply with some or any technical or legal requirements that are applicable to finished products,
including, without limitation, directives regarding electromagnetic compatibility, recycling (WEEE), FCC,
CE or UL (except as may be otherwise noted on the board/kit). Atmel supplied this board/kit "AS IS,"
without any warranties, with all faults, at the buyer's and further users' sole risk. The user assumes all
responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies Atmel
from all claims arising from the handling or use of the goods. Due to the open construction of the
product, it is the user's responsibility to take any and all appropriate precautions with regard to
electrostatic discharge and any other technical or legal concerns.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER USER NOR ATMEL
SHALL BE LIABLE TO EACH OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES.
No license is granted under any patent right or other intellectual property right of Atmel covering or
relating to any machine, process, or combination in which such Atmel products or services might be or
are used.
Mailing Address:
Atmel Corporation
1600 Technology Drive
San Jose, CA 95110
USA
Atmel®, Atmel logo and combinations thereof, Enabling Unlimited Possibilities®, maXTouch®, and others are registered trademarks or trademarks of Atmel
Corporation in U.S. and other countries. Windows® is a registered trademark of Microsoft Corporation in U.S. and or other countries. Other terms and product names
may be trademarks of others.
DISCLAIMER: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any
intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND
CONDITIONS OF SALES LOCATED ON THE ATMEL WEBSITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED
OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY,
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INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED
OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this
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