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USER GUIDE
Atmel SAM R21 Xplained Pro
Preface
®
The Atmel
SAM R21 Xplained Pro evaluation kit is a hardware platform to
evaluate the ATSAMR21G18A microcontroller.
Supported by the Atmel Studio integrated development platform, the kit provides
easy access to the features of the Atmel ATSAMR21G18A 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
ATSAMR21G18A.
The Xplained Pro extension kits offers additional peripherals to extend the
features of the board and ease the development of custom designs.
42243A-MCU-02/2014
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Summary of Contents for Atmel SAM R21 Xplained Pro
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Page 1: Preface
ATSAMR21G18A microcontroller. Supported by the Atmel Studio integrated development platform, the kit provides easy access to the features of the Atmel ATSAMR21G18A 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 ATSAMR21G18A. -
Page 2: Table Of Contents
7. Hardware Revision History and Known Issues ..... 20 7.1. Identifying Product ID and Revision ......... 20 7.2. Revision 3 ................20 8. Document revision history ............. 21 9. Evaluation Board/Kit Important Notice ........22 Atmel SAM R21 Xplained Pro [USER GUIDE] 42243A-MCU-02/2014... -
Page 3: Introduction
● USB interface, device Kit Overview The Atmel SAM R21 Xplained Pro evaluation kit is a hardware platform to evaluate the Atmel ATSAMR21G18A. The kit offers a set of features that enables the ATSAMR21G18A user to get started using the ATSAMR21G18A peripherals right away and to get an understanding of how to integrate the device in their own design. - Page 4 Figure 1-1. SAM R21 Xplained Pro Evaluation Kit Overview Atmel SAM R21 Xplained Pro [USER GUIDE] 42243A-MCU-02/2014...
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Page 5: Getting Started
● Connect a Micro-B cable to the DEBUG USB port Connecting the Kit When connecting Atmel SAM R21 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. -
Page 6: Xplained Pro
In conjunction with Atmel Studio, the EDBG debugger interface can program and debug the ATSAMR21G18A. On the SAM R21 Xplained Pro, the SWD interface is connected between the EDBG and the ATSAMR21G18A. The Virtual COM Port is connected to a UART port on the ATSAMR21G18A (see section “Embedded Debugger... -
Page 7: Power Supply
Power supply The SAM R21 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 The available power sources and specifications are listed in Table 3-3, “Power Sources for SAM R21 Xplained... -
Page 8: Xplained Pro Power Header
Xplained Pro Power Header The power header can be used to connect external power to the SAM R21 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. - Page 9 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. Atmel SAM R21 Xplained Pro [USER GUIDE] 42243A-MCU-02/2014...
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Page 10: Hardware User Guide
I/O Extension Headers The SAM R21 Xplained Pro headers EXT1, EXT2 and EXT3 offer 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... -
Page 11: Other Headers And Connectors
Crystal The SAM R21 Xplained Pro kit contains one crystals that can be used as clock source for the SAM R21 device. The crystal has a cut-strap next to it that can be used to measure the oscillator safety factor. This is done by... -
Page 12: Mechanical Buttons
RESET PA28 4.2.3 There is one yellow LED available on the SAM R21 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 4-8. LED connections... -
Page 13: Operation
1.8V Operation The SAM R21 Xplained Pro board is operated at 3.3V by default, but it also has the possibility of running at lower voltages from an external supply. The EDBG is designed to run from a 3.3V supply and won't work on other voltages, therefore all connections from the EDBG and the on board 3.3V regulator to the... -
Page 14: Embedded Debugger Implementation
ATSAMR21G18A 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 SAM R21 GPIOs. Atmel Studio can be used as a front end for the Embedded Debugger. -
Page 15: Serial Wire Debug
Atmel Data Gateway Interface The Embedded Debugger features an Atmel Data Gateway Interface (DGI) by using either a SPI or I²C port. The DGI can be used to send a variety of data from the SAM R21 to the host PC. For further information on how to use the DGI interface see “Embedded Debugger”... -
Page 16: Kit Specific Data
Kit Specific Data One of the user pages in the EDBG is programmed with data specific to the SAM R21 Xplained Pro. The data can be read through the I C interface connected to the EDBG, for detailed information see the... -
Page 17: Agency Certification
This equipment complies with Part 15 of the FCC rules and regulations. To fulfill FCC Certification requirements, an OEM manufacturer must comply with the following regulations: 1. This equipment (SAM R21 Xplained Pro) is for use for evaluation purposes only and must not be incorporated into any other device or system. -
Page 18: Canada (Ic)
The SAM R21 Xplained Pro is certified as a limited modular transmitter with IC ID 11019A-092127. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. -
Page 19: List Of Antennas Tested With This Product
Table 6-1. List of Tested Antennas Antenna Number Make Model/Part # Antenna Gain Type of Antenna (dBi) Antenna 1 Johanson 2450AT18D0100 1.5dBi Ceramic Antenna Technology Antenna 2 Techfun Co., Ltd M01-SS2 0dBi External Antenna Atmel SAM R21 Xplained Pro [USER GUIDE] 42243A-MCU-02/2014... -
Page 20: Hardware Revision History And Known Issues
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. -
Page 21: Document Revision History
Document revision history Document Date Comment revision 42243A 02/2014 Initial document release Atmel SAM R21 Xplained Pro [USER GUIDE] 42243A-MCU-02/2014... -
Page 22: Evaluation Board/Kit Important Notice
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. - Page 23 ARM Ltd. Other terms and product names may be trademarks of others. Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products.
- Page 24 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Microchip ATSAMR21-XPRO...
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