SmartConnect
ATZB-SAMR21-XPRO
USER GUIDE
Preface
This user guide facilitates how to get started with the Atmel® ATZB-SAMR21-
XPRO extension board. ATZB-SAMR21-XPRO is targeted for evaluating the
features and performance of the Atmel ATSAMR21G18-MR210UA ZigBit®
wireless module. The extension board is designed to provide ZigBee
wireless functionality to the Xplained Pro evaluation platform in 2.4GHz ISM
band.
Atmel-42695A-ATZB-SAMR21-XPRO_User Guide-08/2016
Table of Contents
Preface............................................................................................................................ 1
1. Introduction................................................................................................................3
1.1. Features....................................................................................................................................... 3
1.2. Kit Overview................................................................................................................................. 3
2. Getting Started...........................................................................................................5
2.1. Xplained Pro Quick Start.............................................................................................................. 5
2.2. Connecting XPRO with XPRO Extension.....................................................................................5
2.3. Performance Analyzer..................................................................................................................6
2.3.1. Introduction.................................................................................................................... 6
2.3.2. Programming Wireless Assembly using Atmel Studio 7.0.............................................6
2.3.3. Installing Wireless Composer 7.0 Extension in Atmel Studio 7.0.................................. 7
2.4. Design Documentation and Relevant Links................................................................................. 9
3. Xplained Pro............................................................................................................ 11
3.1. Hardware Identification System..................................................................................................11
3.2. Xplained Pro Standard Extension Header..................................................................................11
4. Hardware Users Guide............................................................................................ 13
4.1. Headers and Connectors............................................................................................................13
4.1.1. ATZB-SAMR21-XPRO Extension Header................................................................... 13
4.1.2. Battery Connector (J4).................................................................................................14
4.1.3. Current Measurement Header (J5)..............................................................................14
4.1.4. User Application Connectors (J1 and J3).................................................................... 14
4.1.5. Debug SWD Header J2............................................................................................... 15
4.2. ATZB-SAMR21-XPRO Peripherals............................................................................................ 15
4.2.1. LED..............................................................................................................................15
4.2.2. Button.......................................................................................................................... 15
5. Hardware Revision History and Known Issues........................................................16
5.1. Identifying Product ID and Revision........................................................................................... 16
5.2. Revision......................................................................................................................................16
6. Evaluation Board/Kit Important Notice.....................................................................17
7. Document Revision History..................................................................................... 18
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1. Introduction
1.1. Features
Atmel ATSAMR21G18-MR210UA: IEEE® 802.15.4 compliant ZigBit wireless module for 2.4GHz
ZigBee® applications
ATSAMR21G18 (ARM® Cortex® -M0+) system in package
AT45DB041E 4Mb DataFlash
ATECC508A CryptoAuthentication Device
2450BM15A0015E Balun-Filter
An RF switch and two U.FL connectors for external antennas or RF front-end connections
Radio module with a link budget of 103dB
32.768kHz crystal oscillator
High precision 16MHz crystal oscillator
Single 1.8V - 3.6V supply
Supports Switching Antenna Diversity
Current Measurement header
Debug SWD header
Digital I/O
Xplained Pro extension header comprising SPI, I2C, and UART interfaces of ATSAMR21G18-
MR210UA
One RESET button and one user button
Three user LEDs
Supports with Performance Analyzer in Atmel Studio
Operating temperature range -40 to +85°C
Xplained Pro hardware identification system
1.2. Kit Overview
The Atmel ATZB-SAMR21-XPRO is a carrier board for ATSAMR21G18-MR210UA ZigBit for the Xplained
Pro evaluation platform. They can be connected with any Xplained Pro standard extension header on any
Xplained Pro MCU board to provide ZigBee wireless functionality in 2.4GHz ISM band.
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Figure 1-1. ATZB-SAMR21-XPRO
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2. Getting Started
2.1. Xplained Pro Quick Start
Steps to start exploring the Atmel Xplained Pro platform:
1. Download Atmel Studio.
2. Launch Atmel Studio.
3. Connect a USB cable (Standard-A to Micro-B or Micro-AB) between the PC and the DEBUG USB
port on the kit.
When the Xplained Pro MCU kit is connected to your computer for the first time, the operating system will
perform a driver software installation.
Once the Xplained Pro MCU board is powered the green power LED will be lit and Atmel Studio will auto
detect which Xplained Pro MCU- and extension board(s) are connected. Atmel Studio will present
relevant information like datasheets and kit documentation. The kit landing page in Atmel Studio also has
the option to launch Atmel Software Framework (ASF) example applications for the kit. The target device
is programmed and debugged by the on-board Embedded Debugger and therefore no external
programmer or debugger tool is needed.
2.2. Connecting XPRO with XPRO Extension
ATZB-SAMR21-XPRO Extension board has been designed to be connected with an Xplained Pro
extension header marked EXT1. However, it is compatible with all Xplained Pro EXT headers. Refer to
the pin-outs of your Xplained Pro evaluation kit to find out which Xplained Pro EXT headers can be used.
The connection of the ATZB-SAMR21-XPRO wireless extension board with the Atmel ATMEGA256RFR2-
Xplained Pro Evaluation Kit is shown below. Similarly, the extension board can also be connected with
SAM4L-XPRO or any other XPROs.
Figure 2-1. Connecting ATMEGA256RFR2-XPRO with ATZB-SAMR21-XPRO Extension
Initially, the corresponding XPRO boards should be programmed with the respective Serial bridge
firmware, and the ATZB-SAMR21-XPRO extension board should be programmed with Performance
Analyzer firmware. After programming both XPRO and extension boards, the Performance Analyzer GUI
in Atmel Studio can easily connect with the ZigBit wireless module on the extension board, and allow the
user to change the channel, transmit power, modulation scheme, etc. to perform RF tests. Programming
steps for both XPRO and extension board are explained in detail in Programming Wireless Assembly
using Atmel Studio 7.0
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2.3. Performance Analyzer
2.3.1. Introduction
The Performance Analyzer firmware together with a GUI (Wireless Composer Extension) in Atmel Studio
provides a way to perform a number of basic RF functional tests.
A quick-start guide and general help are available in the starting page of Performance Analyzer window.
The latest version of Atmel Studio is 7.0. This section guides the user to install necessary wireless
extension and programming the wireless assembly (XPRO + ATZB-SAMR21-XPRO ) using Atmel Studio
7.0.
2.3.2. Programming Wireless Assembly using Atmel Studio 7.0
The following steps explain the way to program the wireless assembly and get started.
1. Connect the Debug USB port of the XPRO board with PC using the USB cable to power on/
program the board.
2. Program the XPRO board using on-board Embedded Debugger (EDBG) with Serial Bridge
Application firmware available at "New Example Project from ASF or Extensions" in Atmel Studio.
"Serial Bridge Application - ATMEGA256RFR2-Xplained Pro" and "Serial Bridge Application -
SAM4L Xplained Pro" firmwares are available for ATMEGA256RFR2-XPRO and ATSAM4L-XPRO
boards respectively. After programming, the XPRO board is able to communicate with suitable
extension board through UART interface.
3. Connect the ATZB-SAMR21-XPRO extension board with the programmed XPRO board to power
ON the extension board. Program the extension board through SWD header with Performance
Analyzer Application firmware available at "New Example Project from ASF or Extensions" in Atmel
Studio using Atmel-ICE as shown below.
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4. Open the Performance Analyzer GUI from the Tools menu in Atmel Studio.
5. Follow the Quick Start guidelines available in the starting page of Performance Analyzer window.
Select COM port, click 'connect', and the Performance Analyzer can connect with ZigBit on the
board.
6. Finally, the Performance Analyzer will allow to set/change the parameters like Channel Page,
Channel, TX Power Register Value, etc. to perform various RF tests. For more details about the
usage of Performance Analyzer, click 'help' as shown below in the Performance Analyzer page.
2.3.3. Installing Wireless Composer 7.0 Extension in Atmel Studio 7.0
The following steps explain how to install the necessary wireless extension tool in Atmel Studio 7.0.
Install and open Atmel Studio
Go to Tools and click "Extensions and Updates... "
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In "Extensions and Updates" window, click on "Available Downloads". Next, click on the arrow mark
on the left side of "All" and click on "Wireless". Select "Wireless Composer 7.0" and click
"Download", which will lead to Atmel Gallery.
Log in to Atmel Gallery. Click "Download" again and the download will start.
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Install Wireless Composer
Restart Atmel Studio after the installation. The Performance Analyzer GUI will be available in Tools
menu.
2.4. Design Documentation and Relevant Links
The following list contains links to the most relevant documents and software for ATZB-SAMR21-XPRO:
Xplained Pro products - Atmel Xplained Pro is a series of small-sized and easy-to-use evaluation
kits for Atmel microcontrollers and other Atmel products. It consists of a series of low-cost MCU
boards for evaluation and demonstration of features and capabilities of different MCU families.
ATZB-SAMR21-XPRO User Guide - PDF version of this User Guide.
ATZB-SAMR21-XPRO Design Documentation - Package containing schematics, BOM, assembly
drawings, 3D plots, layer plots, etc.
Atmel Studio - Free Atmel IDE for development of C/C++ and assembler code for Atmel
microcontrollers.
EDBG User Guide - User guide containing more information about the on-board Embedded
Debugger.
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Atmel Data Visualizer - Atmel Data Visualizer is a program used for processing and visualizing
data. Data Visualizer can receive data from various sources such as the Embedded Debugger Data
Gateway Interface found on Xplained Pro boards and COM ports.
ATZB-SAMR21-XPRO - Product page.
ATSAMR21G18-MR210UA - Datasheet of ZigBit wireless module.
ATSAMR21G18A-MUT - Datasheet ARM based Wireless Microcontroller.
ATSHA204A-MAHCZ-T - Datasheet of Standard XPRO extension board ID chip.
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3. 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, which 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,
which are connected through a set of standardized headers and connectors. Each extension board has
an identification (ID) chip to uniquely identify which boards are connected to an Xplained Pro MCU board.
This information is used to present relevant user guides, application notes, datasheets, and example
code through Atmel Studio.
3.1. Hardware Identification System
All Xplained Pro compatible extension boards have an Atmel ATSHA204 CryptoAuthentication chip
mounted. This chip contains information that identifies the extension with its name and some extra data.
When an Xplained Pro extension 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. The table below shows the data fields stored in the ID
chip with example content.
Table 3-1. Xplained Pro ID Chip Content
Data field Data type Example content
Manufacturer ASCII string Atmel'\0'
Product Name ASCII string Segment LCD1 Xplained Pro'\0'
Product Revision ASCII string 02'\0'
Product Serial Number ASCII string 1774020200000010’\0’
Minimum Voltage [mV] uint16_t 3000
Maximum Voltage [mV] uint16_t 3600
Maximum Current [mA] uint16_t 30
3.2. Xplained Pro Standard Extension Header
All Xplained Pro kits have one or more dual row, 20-pin, 100mil extension header. Xplained Pro MCU
boards have male headers, while Xplained Pro extensions have their female counterparts. Note that all
pins are not always connected. All connected pins follow the defined pin-out description in the table
below.
The extension headers can be used to connect a variety of Xplained Pro extensions to Xplained Pro MCU
boards or to access the pins of the target MCU on Xplained Pro MCU boards directly.
Table 3-2. Xplained Pro Standard Extension Header
Pin number Name Description
1 ID Communication line to the ID chip on an extension board
2 GND Ground
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Pin number Name Description
3 ADC(+) Analog to digital converter, alternatively positive part of differential
ADC
4 ADC(-) Analog to digital converter, alternatively negative part of differential
ADC
5 GPIO1 General purpose I/O
6 GPIO2 General purpose I/O
7 PWM(+) Pulse width modulation, alternatively positive part of differential
PWM
8 PWM(-) Pulse width modulation, alternatively negative part of differential
PWM
9 IRQ/GPIO Interrupt request line and/or general purpose I/O
10 SPI_SS_B/
GPIO
Slave select for SPI and/or general purpose I/O
11 I2C_SDA Data line for I2C interface. Always implemented, bus type.
12 I2C_SCL Clock line for I2C interface. Always implemented, bus type.
13 UART_RX Receiver line of target device UART
14 UART_TX Transmitter line of target device UART
15 SPI_SS_A Slave select for SPI. Should preferably be unique.
16 SPI_MOSI Master out slave in line of serial peripheral interface. Always
implemented, bus type.
17 SPI_MISO Master in slave out line of serial peripheral interface. Always
implemented, bus type.
18 SPI_SCK Clock for serial peripheral interface. Always implemented, bus type.
19 GND Ground
20 VCC Power for extension board
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4. Hardware Users Guide
4.1. Headers and Connectors
4.1.1. ATZB-SAMR21-XPRO Extension Header
ATZB-SAMR21-XPRO has an Xplained Pro Standard Extension Header (J100) marked with EXT in PCB
silkscreen. This header makes it possible to connect the board to any Xplained Pro MCU board. The pin-
out definition for the extension header is shown below.
Table 4-1. ATZB-SAMR21-XPRO Extension Header J100
Pin on EXT Function Description
1 ID_DATA Communication line to ID chip
2 GND Ground
3 ADC(+) NC
4 ADC(-) NC
5 FEM_CSD NC
6 CLK_OUT NC
7 PWM(+) RESET to ZigBit
8 PWM(-) NC
9 IRQ/GPIO NC
10 SPI_SS_B/GPIO GPIO for Atmel Authentication Chip ATECC508A
communication
11 TWI_SDA Data line for I2C interface between host and ZigBit
12 TWI_SCL Data line for I2C interface between host and ZigBit
13 UART_RX ZigBit UART Transmit
14 UART_TX ZigBit UART Receive
15 SPI_SS_A Slave select for SPI. Should be unique if possible.
16 SPI_MOSI Master out slave in line of Serial peripheral interface.
Always implemented, bus type.
17 SPI_MISO Master in slave out line of Serial peripheral interface.
Always implemented, bus type.
18 SPI_SCK Clock for Serial peripheral interface. Always implemented,
bus type.
19 GND Ground
20 VCC_TARGET Power for extension board
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4.1.2. Battery Connector (J4)
A battery can be used to power up the board using the Battery Connector (J4). This is a secondary option
to power up the board. This mode of power up can be used during programming the kit using Atmel-ICE
or as a standalone Receiver node. The most common primary mode of power source is from XPRO
board through 20-pin extension Header.
4.1.3. Current Measurement Header (J5)
The current measurement header (J5) can be used to measure the current consumed by the board by
removing the jumper and connecting an Ammeter/Multimeter across the two pins of J5.
4.1.4. User Application Connectors (J1 and J3)
There are two User Application Connectors (J1 and J3). UART, ADC, USB, and some GPIO signals of
ZigBit are available in these connectors for user application. The users can use these signals based on
their application.
Table 4-2. J1 Connector
Pin on connector ZigBit Signal ZigBit Pin Kit Function
1 GPIO 10 YELLOW_LED
2 NC 11 UNUSED_PIN11
3 RXD1 13 RX
4 TXD1 14 TX
5 NC 15 UNUSED_PIN15
6 NC 16 UNUSED_PIN16
7 FEM_RX_TX 17 RED_LED
8 ANT_DIV_P 18 GREEN_LED
9 GPIO/USB_DM 19 GPIO/USB_DM
10 GPIO/USB_DP 20 GPIO/USB_DP
Table 4-3. J3 Connector
Pin on connector ZigBit signal ZigBit Pin Kit Function
1 ADC0 25 ADC0
2 ADC1 26 ADC1
3 NC 27 UNUSED_PIN27
4 NC 28 UNUSED_PIN28
5 AREF 24 GPIO/AREF
6 TXD0 23 GPIO
7 RXD0 22 Push button
8 NC 21 UNUSED_PIN21
9 NC 34 UNUSED_PIN34
10 NC 39 UNUSED_PIN39
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4.1.5. Debug SWD Header J2
Serial Wire Debug Header is available on the board for Programming and Debugging ZigBit wireless
module.
Table 4-4. SWD Header J2
Pin on connector ZigBit signal
1 VCC_P3V3
2 SWDIO
3 GND
4 SWDCLK
5 GND
6 NC
7 NC
8 NC
9 GND
10 RESET
4.2. ATZB-SAMR21-XPRO Peripherals
4.2.1. LED
There are three LEDs (Green, Red and Yellow colors) on the board that are controlled by ZigBit. Normally
the Green LED is used for Power supply indication and the other two LEDs are for User Application
indication.
4.2.2. Button
There are two buttons. SW1 is to reset the ZigBit module and SW2 is for User Application.
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5. Hardware Revision History and Known Issues
5.1. Identifying Product ID and Revision
The revision and product identifier of the ATZB-SAMR21-XPRO can be found by looking at the sticker on
the bottom side of the PCB. The identifier and revision are printed in plain text as A09-nnnn\rr, where
nnnn is the identifier and rr is the revision. Also the label contains a 10-digit serial number unique to each
board.
The product identifier for the ATZB-SAMR21-XPRO is A09-2630.
5.2. Revision
Revision 2 is the latest revision for the ATZB-SAMR21-XPRO. There are no known issues.
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6. 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.
Mailing Address: Atmel Corporation
1600 Technology Drive
San Jose, CA 95110
USA
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7. Document Revision History
Doc. rev. Date Comment
42695A 08/2016 Initial document release.
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