Atmel® I/O1 Xplained Pro is an extension board to the Atmel Xplained Pro
evaluation platform. I/O1 Xplained Pro is designed to give a wide variety of
functionality to Xplained Pro MCU boards including a microSD card, a
temperature sensor, a light sensor, and more.
7. Evaluation Board/kit Important Notice..................................................................... 14
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1. Introduction
1.1. Features
•microSD card connector
–2GB microSD card included
–Accessed with SPI interface
•PWM
–LED control
–PWM → Low pass filter → ADC
•ADC
–PWM → Low pass filter → ADC
–Light sensor
•UART
–Loopback interface via pin header
•TWI
–AT30TSE758 temperature sensor with EEPROM
•Xplained Pro hardware identification system
1.2. Kit Overview
Atmel I/O1 Xplained Pro extension board is a generic extension board for the Xplained Pro platform. It
connects to any Xplained Pro standard extension header on any Xplained Pro MCU board.
The extension board utilizes all functions on the standard Xplained Pro extension header to further
enhance the feature set of Xplained Pro MCU boards.
Figure 1-1 I/O1 Xplained Pro Extension Board
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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 I/O1 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 I/O1 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.
•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.
•Hardware Users Guide in PDF format - PDF version of this User Guide.
•I/O1 Xplained Pro on Atmel web page - Atmel website link.
®
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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. Table 3-1 Xplained Pro ID Chip Content on page 5
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 Table 3-2
Xplained Pro Standard Extension Header on page 6.
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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