ATSAMC21-XPRO

SMART ARM-based Microcontrollers SAM C21 Xplained Pro USER GUIDE Preface The Atmel SAM C21 Xplained Pro evaluation kit is a hardware platform to evaluate the Atmel ATSAMC21J18A microcontroller. Supported by the Atmel Studio integrated development platform, the kit provides easy access to the features of the ATSAMC21J18A 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 ATSAMC21J18A. The Xplained Pro extension series evaluation kits offers additional peripherals to extend the features of the board and ease the development of custom designs. Atmel-42460D-SAM-C21-Xplained-Pro User Guide-08/2016Table 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 Users Guide............................................................................................ 12 4.1. Power Distribution...................................................................................................................... 12 4.2. Connectors................................................................................................................................. 13 4.2.1. Xplained Pro Extension Headers.................................................................................14 4.2.2. Arduino Connectors..................................................................................................... 16 4.2.3. VCC Selection Header.................................................................................................18 4.2.4. VREF Header.............................................................................................................. 19 4.2.5. DAC Header................................................................................................................ 19 4.2.6. Current Measurement Header..................................................................................... 19 4.2.7. Cortex Debug Connector............................................................................................. 19 4.3. Peripherals................................................................................................................................. 20 4.3.1. LED..............................................................................................................................20 4.3.2. Mechanical Buttons..................................................................................................... 20 4.3.3. Crystals........................................................................................................................20 4.3.4. CAN............................................................................................................................. 21 4.3.5. LIN............................................................................................................................... 21 4.3.6. QTouch Button............................................................................................................. 22 4.3.7. Crypto Footprints......................................................................................................... 22 4.4. Kit Modifications......................................................................................................................... 23 4.5. Embedded Debugger Implementation........................................................................................30 4.5.1. Serial Wire Debug........................................................................................................31 4.5.2. Virtual COM Port..........................................................................................................31 4.5.3. Atmel Data Gateway Interface.....................................................................................31 5. Appendix..................................................................................................................33 5.1. Getting Started with IAR.............................................................................................................33 5.2. Connecting a SAM-ICE to an Xplained Pro Board..................................................................... 36 Atmel SAM C21 Xplained Pro USER GUIDE 2 Atmel-42460D-SAM-C21-Xplained-Pro User Guide-08/2016