Atmel SAM4N Xplained Pro (USER GUIDE)

Atmel SAM4N Xplained Pro (USER GUIDE)

USER GUIDE

Atmel SAM4N Xplained Pro

Preface

The Atmel® SAM4N Xplained Pro evaluation kit is a hardware platform to evaluate the ATSAM4N16C microcontroller.

Supported by the Atmel Studio integrated development platform, the kit provides easy access to the features of the Atmel ATSAM4N16C and explains how to integrate the device in a custom design.

The Xplained Pro MCU series evaluation kits include an on-board Embedded

Debugger, and no external tools are necessary to program or debug the

ATSAM4N16C.

The Xplained Pro extension kits offers additional peripherals to extend the features of the board and ease the development of custom designs.

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Table of Contents

Preface .......................................................................................... 1

1. Introduction .............................................................................. 3

1.1.

Features .............................................................................. 3

1.2.

Kit overview ......................................................................... 3

2. Getting started ......................................................................... 5

2.1.

Quick-start ........................................................................... 5

2.2.

Connecting the kit ................................................................. 5

2.3.

Design documentation and related links ..................................... 5

3. Xplained Pro ............................................................................ 6

3.1.

Embedded Debugger ............................................................. 6

3.2.

Hardware identification system ................................................. 6

3.3.

Power supply ....................................................................... 7

3.3.1.

Measuring SAM4N power consumption ......................... 7

3.4.

Standard headers and connectors ............................................ 7

3.4.1.

Xplained Pro extension header .................................... 7

3.4.2.

Xplained Pro power header ......................................... 8

4. Hardware user guide .............................................................. 9

4.1.

Connectors .......................................................................... 9

4.1.1.

I/O extension headers ................................................ 9

4.1.2.

Other headers ........................................................ 10

4.2.

Peripherals ......................................................................... 11

4.2.1.

Crystals ................................................................. 11

4.2.2.

Mechanical buttons .................................................. 12

4.2.3.

LED ...................................................................... 12

4.2.4.

Analog reference ..................................................... 12

4.3.

Embedded Debugger implementation ...................................... 12

4.3.1.

Serial Wire Debug ................................................... 12

4.3.2.

Virtual COM port ..................................................... 12

4.3.3.

Atmel Data Gateway Interface ................................... 13

5. Hardware revision history and known issues ........................ 14

5.1.

Identifying product ID and revision .......................................... 14

5.2.

Revision 2 .......................................................................... 14

6. Document revision history ..................................................... 15

7. Evaluation board/kit important notice .................................... 16

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1.

1.1

Introduction

Features

● Atmel ATSAM4N16C microcontroller

● Embedded debugger (EDBG)

● USB interface

● Programming and debugging (target) through Serial Wire Debug (SWD)

● Virtual COM-port interface to target via UART

● Atmel Data Gateway Interface (DGI) to target via synchronous USART or TWI

● Four GPIOs connected to target for code instrumentation

● Digital I/O

● Two mechanical buttons (user and reset button)

● One user LED

● Three extension headers

● Three spare signal headers

● Two possible power sources

● External power

● Embedded debugger USB

● 12MHz crystal

● 32kHz crystal

1.2

Kit overview

The Atmel SAM4N Xplained Pro evaluation kit is a hardware platform to evaluate the Atmel ATSAM4N16C.

The kit offers a set of features that enables the ATSAM4N16C user to get started using the ATSAM4N16C peripherals right away and to get an understanding of how to integrate the device in their own design.

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Figure 1-1. SAM4N Xplained Pro evaluation kit overview

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2.

2.1

2.2

2.3

Getting started

Quick-start

3 Steps to start exploring the Atmel Xplained Pro Platform

● Download and install

Atmel Studio

1

.

● Launch Atmel Studio.

● Connect an USB cable to the DEBUG USB port.

Connecting the kit

When connecting Atmel SAM4N Xplained Pro to your computer for the first time, the operating system will do a driver software installation. The driver file supports both 32-bit and 64-bit versions of Microsoft® Windows® XP and Windows 7.

Once connected the green power LED will be lit and Atmel Studio will autodetect which Xplained Pro evaluation- and extension kit(s) that's connected. You'll be presented with relevant information like datasheets and kit documentation. You also have the option to launch Atmel Software Framework (ASF) example applications. The target device is programmed and debugged by the on-board Embedded Debugger and no external programmer or debugger tool is needed. Please refer to the Atmel Studio user guide

2 regarding how to compile and program the kit.

for information

Design documentation and related links

The following list contains links to the most relevant documents and software for SAM4N Xplained Pro.

1.

Xplained Pro products

3

- Atmel Xplained Pro is a series of small-sized and easy-to-use evaluation kits for 8- and 32-bit Atmel microcontrollers. It consists of a series of low cost MCU boards for evaluation and demonstration of features and capabilities of different MCU families.

2.

SAM4N Xplained Pro User Guide

4

- PDF version of this User Guide.

3.

SAM4N Xplained Pro Design Documentation

5 drawings, 3D plots, layer plots etc.

- Package containing schematics, BOM, assembly

4.

Atmel Studio

6

- Free Atmel IDE for development of C/C++ and assembler code for Atmel microcontrollers.

5.

IAR Embedded Workbench®

7

for ARM®. This is a commercial C/C++ compiler that is available for

ARM. There is a 30 day evaluation version as well as a code size limited kick-start version available from their website. The code size limit is 16K for devices with M0, M0+ and M1 cores and 32K for devices with other cores.

6.

Atmel sample store

8

- Atmel sample store where you can order samples of devices.

1

http://www.atmel.com/atmelstudio

2

http://www.atmel.com/atmelstudio

3

http://www.atmel.com/XplainedPro

4

http://www.atmel.com/Images/Atmel-42104-SAM4N-Xplained-Pro_User-Guide.pdf

5

http://www.atmel.com/Images/Atmel-42104-SAM4N-Xplained-Pro_User-Guide.zip

6

http://www.atmel.com/atmelstudio

7

http://www.iar.com/en/Products/IAR-Embedded-Workbench/ARM/

8

http://www.atmel.com/system/samplesstore

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3.

3.1

3.2

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 that 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 that are connected through a set of standardized headers and connectors. Each extension board has an identification (ID) chip to uniquely identify which boards are mounted on a Xplained Pro MCU board. This information is used to present relevant user guides, application notes, datasheets and example code through Atmel Studio. Available Xplained Pro

MCU and extension boards can be purchased in the Atmel Web Store

1

.

Embedded Debugger

The SAM4N Xplained Pro contains the Atmel® Embedded Debugger (EDBG) for on-board debugging. The

EDBG is a composite USB device of 3 interfaces; a debugger, Virtual COM Port and Data Gateway Interface

(DGI).

In conjunction with Atmel Studio, the EDBG debugger interface can program and debug the ATSAM4N16C. On the SAM4N Xplained Pro, the SWD interface is connected between the EDBG and the ATSAM4N16C.

The Virtual COM Port is connected to a UART port on the ATSAM4N16C (see section “Embedded Debugger implementation” on page 12

for pinout), and provides an easy way to communicate with the target application through a simple terminal software. It offers variable baud rate, parity and stop bit settings. Note that the settings on the target device UART must match the settings given in the terminal software.

The DGI consists of several physical data interfaces for communication with the host computer. Please, see section

“Embedded Debugger implementation” on page 12

for available interfaces and pinout.

Communication over the interfaces are bidirectional. It can be used to send events and values from the

ATSAM4N16C, or as a generic printf-style data channel. Traffic over the interfaces can be timestamped on the

EDBG for more accurate tracing of events. Note that timestamping imposes an overhead that reduces maximal throughput. The DGI uses a proprietary protocol, and is thus only compatible with Atmel Studio.

The EDBG controls two LEDs on SAM4N Xplained Pro, a power LED and a status LED.

Table 3-1, “EDBG LED control”

shows how the LEDs are controlled in different operation modes.

Table 3-1. EDBG LED control

Operation mode

Normal operation

Power LED

Power LED is lit when power is applied to the board.

Bootloader mode (idle)

Bootloader mode (firmware upgrade)

For further documentation on the EDBG, see the EDBG User Guide

2

.

Status LED

Activity indicator, LED flashes every time something happens on the EDBG.

The power LED and the status LED blinks simultaneously.

The power LED and the status LED blinks in an alternating pattern.

Hardware identification system

All Xplained Pro compatible extension boards have an Atmel ATSHA204 crypto authentication chip mounted.

This chip contains information that identifies the extension with its name and some extra data. When an

Xplained Pro extension board 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 3-2, “Xplained Pro ID chip content”

shows the data fields stored in the ID chip with example content.

Table 3-2. Xplained Pro ID chip content

Data Field Data Type

Manufacturer ASCII string

Product Name

Product Revision

Product Serial Number

ASCII string

ASCII string

ASCII string

Example Content

Atmel’\0’

Segment LCD1 Xplained Pro’\0’

02’\0’

1774020200000010’\0’

1

http://store.atmel.com/CBC.aspx?q=c:100113

2

http://www.atmel.com/Images/Atmel-42096-Microcontrollers-Embedded-Debugger_User-Guide.pdf

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3.3

3.3.1

Data Field

Minimum Voltage [mV]

Maximum Voltage [mV]

Maximum Current [mA]

Data Type

uint16_t uint16_t uint16_t

Example Content

3000

3600

30

Power supply

The SAM4N Xplained Pro kit can be powered either by USB or by an external power source through the 4-pin power header, marked PWR. This connector is described in

“Xplained Pro power header” on page 8

. The

available power sources and specifications are listed in Table 3-3, “Power sources for SAM4N Xplained Pro”

.

Table 3-3. Power sources for SAM4N Xplained Pro

Power input Voltage requirements

External power 4.3V to 5.5V

Connector marking

PWR

Embedded debugger

USB

4.4V to 5.25V

(according to USB spec)

Current requirements

Recommended minimum is 500mA to be able to provide enough current for extentions and the board itself.

Recommended maximum is 2A due to the input protection maximum current specification.

500 mA (according to

USB spec)

DEBUG USB

The kit will automatically detect which power sources are available and choose which one to use according to the following priority:

1. External power

2. Embedded debugger USB

Measuring SAM4N power consumption

As part of an evaluation of the SAM4N it can be of interest to measure its power consumption. Because the device has a separate power plane (VCC_MCU_P3V3) on this board it is possible to measure the current consumption by measuring the current that is flowing into this plane. The VCC_MCU_P3V3 plane is connected via a jumper to the main power plane (VCC_TARGET_P3V3) and by replacing the jumper with an ampere meter it is possible to determine the current consumption. To locate the current measurement header, please refer to

Figure 1-1, “SAM4N Xplained Pro evaluation kit overview” .

Warning

3.4

3.4.1

Do not power the board without having the jumper or an ampere meter mounted. This can cause the SAM4N to be powered through its I/O pins and cause undefined operation of the device.

Standard headers and connectors

Xplained Pro extension header

All Xplained Pro kits have one or more dual row, 20 pin, 100mil extension headers. Xplained Pro MCU boards have male headers while Xplained Pro extensions have their female counterparts. Note that all pins are

not always connected. However, all the connected pins follow the defined pin-out described in Table 3-4,

“Xplained Pro extension header” . The extension headers can be used to connect a wide variety of Xplained Pro

extensions to Xplained Pro MCU boards and to access the pins of the target MCU on Xplained Pro MCU board directly.

Table 3-4. Xplained Pro extension header

Pin number Name

1 ID

Description

Communication line to the ID chip on extension board.

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3.4.2

Pin number Name

2 GND

3 ADC(+)

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

ADC(-)

GPIO1

GPIO2

PWM(+)

PWM(-)

IRQ/GPIO

SPI_SS_B/GPIO

TWI_SDA

TWI_SCL

USART_RX

USART_TX

SPI_SS_A

SPI_MOSI

SPI_MISO

SPI_SCK

GND

VCC

Description

Ground

Analog to digital converter , alternatively positive part of differential ADC

Analog to digital converter , alternatively negative part of differential ADC

General purpose IO

General purpose IO

Pulse width modulation , alternatively positive part of differential PWM

Pulse width modulation , alternatively positive part of differential PWM

Interrupt request line and/or general purpose IO.

Slave select for SPI and/or general purpose IO.

Data line for two wire interface. Always implemented, bus type.

Clock line for two wire interface. Always implemented, bus type.

Receiver line of Universal Synchronous and Asynchronous serial Receiver and Transmitter

Transmitter line of Universal Synchronous and

Asynchronous serial Receiver and Transmitter

Slave select for SPI. Should be unique if possible.

Master out slave in line of Serial peripheral interface. Always implemented, bus type

Master in slave out line of Serial peripheral interface. Always implemented, bus type

Clock for Serial peripheral interface. Always implemented, bus type

Ground

Power for extension board

Xplained Pro power header

The power header can be used to connect external power to the SAM4N Xplained Pro kit. The kit will automatically detect and switch to the external power if supplied. The power header can also be used as supply for external peripherals or extension boards. Care must be taken not to exceed the total current limitation of the on-board regulator for the 3.3V regulated output. To locate the current measurement header, please refer to

Figure 1-1, “SAM4N Xplained Pro evaluation kit overview”

Table 3-5. Power header PWR

Pin number PWR header

1

2

3

4

Pin name

VEXT_P5V0

GND

VCC_P5V0

VCC_P3V3

Description

External 5V input

Ground

Unregulated 5V (output, derived from one of the input sources)

Regulated 3.3V (output, used as main power for the kit)

Note

If the board is powered from a battery source it is recommended to use the PWR header. If there is a power source connected to EDBG USB, the EDBG is activated and it will consume more power.

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4.

4.1

4.1.1

Hardware user guide

Connectors

This chapter describes the implementation of the relevant connectors and headers on SAM4N Xplained Pro and their connection to the ATSAM4N16C. The tables of connections in this chapter also describes which signals are shared between the headers and on-board functionality.

4

5

6

2

3

7

8

9

13

14

15

16

17

18

19

20

8

9

6

7

10

11

12

2

3

4

5

I/O extension headers

The SAM4N Xplained Pro headers EXT1, EXT2 and EXT3 offers access to the I/O of the microcontroller in order to expand the board e.g. by connecting extensions to the board. These headers all comply with the

standard extension header specified in Xplained Pro Standard Extension Header . All headers have a pitch of

2.54 mm.

Table 4-1. Extension header EXT1

Pin on EXT1

1 -

SAM4N pin

-

Function

PA21

PA22

PA11

PA13

-

PA12

-

PA14

-

PA17

PA18

PA24

PA25

PC23

PC24

PA0

PA23

PA3

PA4

-

AD0

AD1

GPIO

GPIO

TIOA3

TIOB3

WKUP0

GPIO

TWD0

TWCK0

RXD1

TXD1

NPCS0

SPI_MOSI

-

SPI_MISO

-

SPI_SCK

Shared functionality

Communication line to ID chip on extension board.

GND

SPARE HEADER2

SPARE HEADER2

SPARE HEADER2

EXT3

EXT3, SPARE HEADER1

EXT2, EXT3

EXT2, EXT3

EXT2, EXT3

GND

VCC

Table 4-2. Extension header EXT2

Pin on EXT2

1 -

SAM4N pin

-

Function

-

PA19

PA20

PC0

PC1

PC26

PC27

PA1

-

AD2

AD3

GPIO

GPIO

TIOA4

TIOB4

WKUP1

Shared functionality

Communication line to ID chip on extension board.

GND

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4.1.2

16

17

18

19

20

13

14

15

Pin on EXT2

10

11

12

Table 4-3. Extension header EXT3

Pin on EXT3

1 -

SAM4N pin

-

PA13

PA12

-

PA14

SAM4N pin

PC8

PB0

PB1

PA5

PA6

PC4

Function

GPIO

TWD2

TWCK2

RXD0

TXD0

NPCS1

-

SPI_MOSI

SPI_MISO

-

SPI_SCK

Shared functionality

EDBG

EDBG

EXT1, EXT3

EXT1, EXT3

EXT1, EXT3

GND

VCC

8

9

10

11

12

13

14

4

5

6

7

2

3

15

16

17

18

19

20

-

PC29

PC30

PC2

PC3

PA26

PA27

PB2

PB3

PA3

PA4

PB10

PB11

-

-

PC7

PA13

PA12

PA14

-

Function

-

AD13

AD14

GPIO

GPIO

TIOA2

TIOB2

WKUP12

GPIO

TWD0

TWCK0

URXD3

UTXD3

-

-

NPCS2

SPI_MOSI

SPI_MISO

SPI_SCK

Shared functionality

Communication line to ID chip on extension board.

GND

EXT1

EXT1, SPARE HEADER1

EXT1, EXT2

EXT1, EXT2

EXT1, EXT2

GND

VCC

Other headers

In addition to the

“I/O extension headers” on page 9 , SAM4N Xplained Pro has two additional headers

with spare signals that offers access to the I/O of the microcontroller which are otherwise not easily available elsewhere or might be favourable to have collected toghether. All headers have a pitch of 2.54mm.

Table 4-4. SPARE SIGNALS header 1

Pin on header

1

SAM4N pin

PA4

2

3

PA28

PA29

Function

TWCK0

TCLK1

TCLK2

Shared functionality

EXT1, EXT3

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4.2

4.2.1

10

11

12

7

8

9

5

6

Pin on header

4

SAM4N pin

PC25

PC28

PC31

PC16

PC17

PA31

-

-

PB4

10

11

12

6

7

8

9

4

5

2

3

Table 4-5. SPARE SIGNALS header 2

Pin on header

1

SAM4N pin

PA15

PA16

PC5

PC6

PC11

-

-

PC22

PC23

PC24

PA25

PC12

4

5

2

3

6

Table 4-6. SPARE SIGNALS header 3

Pin on header

1

SAM4N pin

PC13

-

-

PC15

PA2

PB13

Function

UTXD2

URXD2

GPIO

GPIO

GPIO

GPIO

TIOA3

TIOB3

GPIO

-

-

AD12

Function

TCLK3

TCLK4

TCLK5

PCK0

PCK1

PCK2

-

-

PWM2

Function

AD10

AD11

DATRG

-

-

DAC0

Shared functionality

VCC

GND

Shared functionality

EXT1

EXT1

EXT1

VCC

GND

Shared functionality

VCC

GND

Peripherals

Crystals

The SAM4N Xplained Pro kit contains two crystals that can be used as clock sources for the SAM4N device.

Each crystal has a cut-strap next to it that can be used to measure the oscillator safety factor. This is done by cutting the strap and adding a resistor across the strap. More information about oscillator allowance and safety factor can be found in appnote AVR4100 documentation

2

of the board.

1

. Calculations for the selected crystal can be found in the schematics

Table 4-7. External 32.768kHz crystals

Pin on SAM4N

PA7

Function

XIN32

1

http://www.atmel.com/images/doc8333.pdf

2

http://www.atmel.com/Images/Atmel-42104-SAM4N-Xplained-Pro_User-Guide.zip

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4.2.2

4.2.3

4.2.4

Note

4.3

4.3.1

4.3.2

Pin on SAM4N

PA8

Table 4-8. External 12MHz crystals

Pin on SAM4N

PB9

PB8

Function

XOUT32

Function

XIN

XOUT

Mechanical buttons

SAM4N Xplained Pro contains two mechanical buttons. One button is the RESET button connected to the

SAM4N reset line and the other is a generic user configurable button. When a button is pressed it will drive the

I/O line to GND.

Table 4-9. Mechanical buttons

Pin on SAM4N

NRST

PA30

Silkscreen text

RESET

SW0

LED

There is one yellow LED available on the SAM4N Xplained Pro board that can be turned on and off. The LED can be activated by driving the connected I/O line to GND.

Table 4-10. LED connections

Pin on SAM4N

PB14

LED

Yellow LED0

Analog reference

The ADVREF is available on a 2-pin header to measure the analog reference voltage of the SAM4N device.

The ADREF pin can only be used for measuring and must not be used as an input for an external voltage reference.

Embedded Debugger implementation

SAM4N Xplained Pro contains an Embedded Debugger (EDBG) that can be used to program and debug the

ATSAM4N16C using Serial Wire Debug (SWD). The Embedded Debugger also include a Virtual Com port interface over UART, an Atmel Data Gateway Interface over SPI and TWI and it monitors four of the SAM4N

GPIOs. Atmel Studio can be used as a front end for the Embedded Debugger.

Serial Wire Debug

The Serial Wire Debug (SWD) use two pins to communicate with the target. For further information on how to

use the programming and debugging capabilities of the EDBG, see “Embedded Debugger” on page 6 .

Table 4-11. SWD connections

Pin on SAM4N

PB7

PB6

PB5

PB12

Function

SWD clock

SWD data

SWD trace output

Erase

Virtual COM port

The Embedded Debugger act as a Virtual Com Port gateway by using one of the ATSAM4N16C UARTs. For

further information on how to use the Virtual COM port see “Embedded Debugger” on page 6

.

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4.3.3

Table 4-12. Virtual COM port connections

Pin on SAM4N

PA10

PA9

Function

UART TXD (SAM4N TX line)

UART RXD (SAM4N RX line)

Atmel Data Gateway Interface

The Embedded Debugger features an Atmel Data Gateway Interface (DGI) by using either a USART or TWI port. The DGI can be used to send a variety of data from the SAM4N to the host PC. For further information on how to use the DGI interface see

“Embedded Debugger” on page 6

.

Table 4-13. DGI interface connections when using USART

Pin on SAM4N

PC10

Function

USART TXD (SAM4N TX line)

PC9

PC14

USART RXD (SAM4N RX line)

USART CLK

Table 4-14. DGI interface connections when using TWI

Pin on SAM4N

PB0

PB1

Function

SDA (Data line)

SCL (Clock line)

Four GPIO lines are connected to the Embedded Debugger. The EDBG can monitor these lines and time stamp pin value changes. This makes it possible to accurately time stamp events in the SAM4N application

code. For further information on how to configure and use the GPIO monitoring features see “Embedded

Debugger” on page 6

.

Table 4-15. GPIO lines connected to the EDBG

Pin on SAM4N

PC21

PC20

PC19

PC18

Function

GPIO0

GPIO1

GPIO2

GPIO3

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5.

5.1

Hardware revision history and known issues

Identifying product ID and revision

The revision and product identifier of Xplained Pro boards can be found in two ways, through Atmel Studio or by looking at the sticker on the bottom side of the PCB.

By connecting a Xplained Pro MCU board to a computer with Atmel Studio running, an information window will pop up. The first 6 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 Kits 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:

5.2

"nnnnrrssssssssss"

n = product identifier

r = revision

s = serial number

The kit identifier for SAM4N Xplained Pro is 1967.

Revision 2

Revision 2 of SAM4N Xplained Pro is the initial released version.

Known issues:

● In backup mode, the ERASE pin will only work with a power toggle of the SAM4N. This however can't be done by the embedded debugger because there is no switch to control the power to the target. So in cases where e.g. an application is in backup mode and the user needs access in order to program/debug it is necessary to do a manual erase procedure.

Workaround:

● Please connect ERASE test point on the bottom side of the board to VCC (3.3V) e.g. pin 4 on the

PWR header. Remove power from the board and reconnect again. The device should be erased by this procedure and it is possible to program/debug via the embedded debugger.

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6.

Document revision history

Doc. Rev.

A

Date

07/2013

Comment

First release

Atmel SAM4N Xplained Pro [USER GUIDE]

42104A-MCU-06/2013

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7.

Evaluation board/kit important notice

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.

Atmel SAM4N Xplained Pro [USER GUIDE]

42104A-MCU-06/2013

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