Table of Contents

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

1. Introduction................................................................................................................ 4

1.1.

Features....................................................................................................................................... 4

1.2.

Kit Overview................................................................................................................................. 4

2. Getting Started...........................................................................................................6

2.1.

Xplained Pro Quick Start.............................................................................................................. 6

2.2.

Design Documentation and Relevant Links................................................................................. 6

3. Xplained Pro.............................................................................................................. 8

3.1.

Embedded Debugger................................................................................................................... 8

3.2.

Hardware Identification System....................................................................................................9

3.3.

Power Sources............................................................................................................................. 9

3.4.

Xplained Pro Headers and Connectors......................................................................................10

3.4.1.

Xplained Pro Standard Extension Header................................................................... 10

3.4.2.

Xplained Pro Power Header.........................................................................................11

4. Hardware User Guide.............................................................................................. 12

4.1.

Connectors................................................................................................................................. 12

4.1.1.

Xplained Pro Extension Headers.................................................................................12

4.1.2.

Alternate Signals Header.............................................................................................13

4.1.3.

Current Measurement Header..................................................................................... 14

4.1.4.

Cortex Debug Connector............................................................................................. 14

4.2.

Peripherals................................................................................................................................. 14

4.2.1.

Crystal..........................................................................................................................14

4.2.2.

Mechanical Buttons..................................................................................................... 15

4.2.3.

LED..............................................................................................................................15

4.2.4.

USB............................................................................................................................. 15

4.2.5.

RF................................................................................................................................ 15

4.3.

1.8V Operation........................................................................................................................... 16

4.4.

Embedded Debugger Implementation........................................................................................17

4.4.1.

Serial Wire Debug........................................................................................................17

4.4.2.

Virtual COM port.......................................................................................................... 18

4.4.3.

Atmel Data Gateway Interface.....................................................................................18

5. Kit Specific Data...................................................................................................... 19

6. Agency Certification.................................................................................................20

6.1.

United States (FCC)................................................................................................................... 20

6.2.

European Union (ETSI).............................................................................................................. 20

6.3.

Canada (IC)................................................................................................................................21

6.4.

List of Antennas Tested With This Product.................................................................................21

7. Appendix..................................................................................................................23

Atmel SAM R21 Xplained Pro [USER GUIDE]

Atmel-42243D-SAM-R21-Xplained-Pro_User Guide-04/2016

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