Atmel ATWINC3400 User manual

ATWINC3400
Getting Started Guide for ATWINC3400 Wi-Fi using SAM
D21 Xplained Pro
USER GUIDE
Introduction
This getting started guide describes the Atmel®ATWINC3400 Wi-Fi®Network
Controller to build state-of-the-art Internet of Things (IoT) applications. The guide
explains hardware information and how to install Atmel Studio (IDE), compile
examples, and download ATWINC3400 firmware.
The following topics will be covered:
How to get Atmel Studio (IDE) and install it
Update new ASF package
Target board information
How to get time client example project
How to get log message
How to download firmware and certificate
Prerequisites
Hardware Prerequisites
–Atmel SAM D21 Xplained Pro Evaluation Kit
–Atmel ATWINC3400-XPRO extension board
–Atmel IO1 extension board
–Micro-USB cable (Micro-A / Micro-B)
Software Prerequisites
–Atmel Studio 7.0
–Time client example project source code
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Table of Contents
1Icon Key Identifiers .....................................................................................................3
2Getting Started with Atmel Studio..............................................................................4
2.1 Download and Install Atmel Studio 7.0..................................................................................................4
2.2 Download and Install the Latest ASF ....................................................................................................4
3Getting Started with Atmel Hardware.........................................................................7
3.1 Atmel SMART SAMD21-XPRO Evaluation Kit......................................................................................7
3.2 Atmel SmartConnect ATWINC3400-XPRO Wi-Fi Extension Board......................................................8
3.3 Atmel IO1-XPRO Sensor Extension Board ...........................................................................................9
3.4 Atmel OLED1-XPRO Display Extension Board...................................................................................10
4How to Debug ATWINC3400 Wi-Fi Firmware........................................................... 11
5How to Download New ATWINC3400 Firmware.......................................................12
5.1 Download Firmware ............................................................................................................................12
6Getting Started with ATWINC3400 IoT Examples.................................................... 15
6.1 Organization of ATWINC3400 IoT Examples......................................................................................15
6.2 Connect the Board ..............................................................................................................................16
6.3 How to Get Time Client Example Project............................................................................................17
6.4 How to Build and Execute...................................................................................................................19
7Conclusion................................................................................................................. 22
8Revision History........................................................................................................ 23

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1 Icon Key Identifiers
Delivers contextual information about a specific topic.
Highlights useful tips and techniques.
Highlights objectives to be completed.
Highlights the expected result of an assignment step.
Indicates important information.
Highlights actions to be executed out of the target.

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2 Getting Started with Atmel Studio
2.1 Download and Install Atmel Studio 7.0
Atmel Studio is the integrated development platform (IDP) for developing and debugging Atmel ARM®Cortex®-
M and Atmel AVR®microcontroller (MCU) based applications. The Atmel Studio 7.0 IDP gives you a seamless
and easy-to-use environment to write, build, and debug your applications written in C/C++ or assembly code.
Atmel Studio 7.0 is now available, adding advanced debugging features such as Data and Interrupt Trace,
improved RTOS integration, and better ability to debug code that has been optimized.
With the introduction of Atmel Gallery and Atmel Spaces, Atmel Studio 7.0 further simplifies embedded MCU
designs to reduce development time and cost. Atmel Gallery is an online apps store for development tools and
embedded software. Atmel Spaces is a cloud-based collaborative development workspace allowing you to host
software and hardware projects targeting Atmel MCUs.
Download and install Atmel Studio 7.0 from http://www.atmel.com/tools/ATMELSTUDIO.aspx.
You can find the installed directory: C:\Program Files(x86)\Atmel\Atmel Studio 7.0.
2.2 Download and Install the Latest ASF
Atmel Studio 7.0 is free of charge and is integrated with the Atmel Software Framework (ASF) —a large library
of free source code with 1,600 ARM and AVR project examples. ASF strengthens the IDP by providing, in the
same environment, access to ready-to-use code that minimizes much of the low-level design required for
projects. Use the IDP for our wide variety of AVR and ARM Cortex-M processor-based MCUs, including our
broadened portfolio of Atmel SAM3 ARM Cortex-M3 and M4 Flash devices.
If the ASF version in your Atmel Studio is not the latest one you will be notified when Atmel Studio starts. The
following procedure demonstrates how to update the ASF to the latest version. You can install other extensions
in the list as well.

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2.2.1 How to Update Atmel Studio to the Latest Version
1. Run Atmel Studio 7.0.
2. You can see the start page of Atmel Studio 7.0.
Update ASF to the latest version.
Menu → Tools → Extension Manager
Available Downloads → Updates → Atmel Software Framework

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Select an extension and proceed with download and installation:
Restart Atmel Studio to take effect of the newly installed extension.
3. Restart Atmel Studio.
4. Open the Tools and Document via File → New → Example Project (Ctrl + Shift + E).

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3 Getting Started with Atmel Hardware
This chapter introduces Atmel Evaluation Kits for testing IoT applications. The SAM D21 and the ATWINC3400
are essential but the IO1 and the OLED1 extension boards are optional.
3.1 Atmel SMART SAMD21-XPRO Evaluation Kit
The Atmel SAM D21 Xplained Pro evaluation kit is ideal for evaluating and prototyping with the Atmel SAM
D21 ARM Cortex-M0+ based microcontrollers. Extension boards to the SAM D21 Xplained Pro can be
purchased individually.
SAMD21J18A microcontroller
One mechanical reset button
One mechanical user pushbutton (wake-up, bootloader entry, or general purpose)
One yellow user LED
32.768kHz crystal
USB interface, device and reduced host mode
8Mb Serial Flash
Three Xplained Pro extension headers
Embedded Debugger
–Auto-ID for board identification in Atmel Studio 7.0
–One yellow status LED

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–One green board power LED
–Symbolic debug of complex data types including scope information
–Programming and debugging
–Data Gateway Interface: SPI, I²C, four GPIOs
–Virtual COM port (CDC)
USB powered
Supported with application examples in Atmel Software Framework
More detailed information about SAM D21: http://www.atmel.com/tools/atsamd21-xpro.aspx
3.2 Atmel SmartConnect ATWINC3400-XPRO Wi-Fi Extension Board
Atmel SmartConnect ATWINC3400 is an IEEE®802.11 b/g/n IOT network controller SoC. It is the ideal add-on
to existing MCU solutions bringing Wi-Fi and Network capabilities through SPI-to-Wi-Fi interface. The
ATWINC3400 connects to any Atmel AVR or SMART MCU with minimal resource requirements. The
ATWINC3400 most advanced mode is a single stream 1x1 802.11n mode providing up to 72Mbps PHY
throughput. ATWINC3400 features fully integrated Power Amplifier, LNA, Switch, and Power Management.
The ATWINC3400 provides internal Flash memory as well as multiple peripheral interfaces including UART,
SPI, and I2C. The only external clock source needed for the ATWINC3400 is a high-speed crystal or oscillator
with a wide variety of reference clock frequencies supported (between 12 –32MHz). The ATWINC3400 is
available in a QFN package.
IEEE 802.11 b/g/n (1x1) for up to 72Mbps
BLE Provisioning
Integrated PA and T/R Switch
Superior sensitivity and range via advanced PHY signal processing
Wi-Fi Direct®, station mode, and Soft-AP support
Supports IEEE 802.11 WEP, WPA2 Security Enterprise
On-chip memory management engine to reduce host load
8Mb internal Flash memory with OTA firmware upgrade
SPI as host interfaces
TCP/IP protocol stack (client/server) sockets applications
Network protocols (DHCP/DNS)

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Secure TLS stack
WSC (wireless simple configuration WPS)
On-Chip Network Stack to offload MCU
–Integrated Network IP stack to minimize host MCU requirements
–Network features: TCP, UDP, DHCP, ARP, HTTP, SSL, and DNS
More detailed information about ATWINC3400: http://www.atmel.com/devices/ATWINC3400.aspx
3.3 Atmel IO1-XPRO Sensor Extension Board
Atmel IO1 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.
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
More detailed information about AT IO1:
http://www.atmel.com/images/atmel-42078-io1-xplained-pro_user-guide.pdf

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3.4 Atmel OLED1-XPRO Display Extension Board
Atmel OLED1 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 buttons, LEDs, and a display.
UG-2832HSWEG04 monochrome OLED display
–128 x 32 pixels
–Controlled by 4-wire SPI interface, up to 100MHz
Three LEDs
Three mechanical push buttons
Xplained Pro hardware identification system
More detailed information about Atmel OLED1 Xplained Pro:
http://www.atmel.com/images/atmel-42077-oled1-xplained-pro_user-guide.pdf