Silicon Laboratories EZR32WG User Manual
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Silicon Laboratories EZR32WG User Manual

915mhz wireless starter kit
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User Manual
EZR32WG 915MHz Wireless Starter Kit
The WSTK6222 is an excellent starting point to get familiar with
the EZR32 Wonder Gecko Wireless Microcontrollers.
The Wireless Starter Kit Mainboard contains sensors and peripherals demonstrating
some of the Wireless MCU's many capabilities. The kit provides all necessary tools for
developing a Silicon Labs wireless application.
ORDERING INFO
• SLWSTK6222A
silabs.com | Smart. Connected. Energy-friendly.
RADIO BOARD FEATURES
• EZR32WG330F256R63G MCU with 256
kB Flash and 32 kB RAM.
• SMA antenna connector
• USB Micro-B connector
• Backup domain capcitor
KIT FEATURES
• Ethernet and USB connectivity
• Advanced Energy Monitoring
• Packet Trace Interface support
• SEGGER J-Link OB debugger
• Debug Multiplexer supporting external
hardware as well as radio board
• Silicon Labs' Si7021 Relative Humidity and
Temperature sensor
• Ultra Low power 128x128 pixel Memory
LCD
• LEDs / Pushbuttons / Reset button
• 20pin 2.54mm header for expansion
boards
• Breakout pads for direct access to all radio
I/O pins
• Power sources including USB and CR2032
coin cell holder.
SOFTWARE SUPPORT
• Simplicity Studio
• Simplicity Profiler
• Simplicity Network Analyzer
• Extensive example set for radio
• Kit Board Support Package
Rev. 1.2

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  • Page 1 User Manual EZR32WG 915MHz Wireless Starter Kit The WSTK6222 is an excellent starting point to get familiar with the EZR32 Wonder Gecko Wireless Microcontrollers. The Wireless Starter Kit Mainboard contains sensors and peripherals demonstrating some of the Wireless MCU's many capabilities. The kit provides all necessary tools for developing a Silicon Labs wireless application.

  • Page 2: Table Of Contents

    EZR32WG 915MHz Wireless Starter Kit Table of Contents 1. Introduction ....... . 1 1.1 Description .
  • Page 3 EZR32WG 915MHz Wireless Starter Kit 10.1 IAR Embedded Workbench for ARM ..... .20 10.2 Atollic TrueSTUDIO for ARM ......21 10.3 Rowley Associates - CrossWorks for ARM .

  • Page 4: Introduction

    EZR32WG 915MHz Wireless Starter Kit Introduction 1. Introduction 1.1 Description The idea behind the WSTK6222 is to provide a complete development platform for Silicon Labs EZR32 Wonder Gecko Wireless Micro- controllers. The core of the WSTK6222 is the Wireless Starter Kit (WSTK) Mainboard (BRD4001) which feature an on-board J-Link de- bugger, an Advanced Energy Monitor for real-time current and voltage monitoring, a Virtual COM port interface, and access to the Packet Trace Interface (PTI).

  • Page 5: Kit Block Diagram

    EZR32WG 915MHz Wireless Starter Kit Kit Block Diagram 2. Kit Block Diagram An overview of the EZR32WG 915MHz Wireless Starter Kit is shown in the figure below. Figure 2.1. WSTK6222 Block Diagram silabs.com | Smart. Connected. Energy-friendly. Rev. 1.2 | 2...

  • Page 6: Kit Hardware Layout

    EZR32WG 915MHz Wireless Starter Kit Kit Hardware Layout 3. Kit Hardware Layout The layout of the EZR32WG 915MHz Wireless Starter Kit is shown below. SoC / Radio pin EZR32 Radioboard access headers On-board USB and Si7021 Humidity and Ethernet J-Link...

  • Page 7: Power Supply And Reset

    EZR32WG 915MHz Wireless Starter Kit Power Supply and Reset 4. Power Supply and Reset 4.1 MCU Power Selection The EZR32 Wonder Gecko MCU on the WSTK6222 is designed to be powered by three different sources: • Through the on-board debugger.

  • Page 8: Mcu Reset

    EZR32WG 915MHz Wireless Starter Kit Power Supply and Reset 4.4 MCU Reset The EZR32 MCU can be reset by a few different sources: • A user pressing the RESET button. • The on-board debugger pulling the #RESET pin low. • An external debugger pulling the #RESET pin low.

  • Page 9: Peripherals

    EZR32WG 915MHz Wireless Starter Kit Peripherals 5. Peripherals The starter kit has a set of peripherals that showcase some of the features of the EZR32 Wonder Gecko Wireless Microcontroller. Be aware that most EZR32 I/O routed to peripherals are also routed to the breakout pads. This must be taken into consideration when using the breakout pads for your application.

  • Page 10: Memory Lcd-Tft Display

    EZR32WG 915MHz Wireless Starter Kit Peripherals 5.2 Memory LCD-TFT Display A 1.28-inch SHARP Memory LCD-TFT has been added to the board to enable interactive applications to be developed. The display has a high resolution of 128 by 128 pixels, and consumes very little power. It is a reflective monochrome display, so each pixel can only be light or dark, and no backlight is needed in normal daylight conditions.

  • Page 11: Usb Micro-B Connector

    EZR32WG 915MHz Wireless Starter Kit Peripherals 5.4 USB Micro-B Connector The BRD4503B WSTK Radio Board is equipped with a USB Micro-B connector that is connected directly to the EZR32. The Radio Board supports operation in USB Device mode only, even if the target radio also supports USB Host mode.

  • Page 12: Si7021 Relative Humidity And Temperature Sensor

    EZR32WG 915MHz Wireless Starter Kit Peripherals 5.5 Si7021 Relative Humidity and Temperature Sensor The Si7021 I C relative humidity and temperature sensor is a monolithic CMOS IC integrating humidity and temperature sensor ele- ments, an analog-to-digital converter, signal processing, calibration data, and an I C Interface.

  • Page 13: Advanced Energy Monitor

    EZR32WG 915MHz Wireless Starter Kit Advanced Energy Monitor 6. Advanced Energy Monitor 6.1 Introduction Any embedded developer seeking to make his embedded code spend as little energy as the underlying architecture supports, needs tools to easily and quickly discover inefficiencies in the running application.

  • Page 14: Aem Accuracy And Performance

    EZR32WG 915MHz Wireless Starter Kit Advanced Energy Monitor 6.3 AEM accuracy and performance The Advanced Energy Monitor is capable of measuring currents in the range of 0.1 µA to95mA. For currents above 250 µA, the AEM is accurate within 0.1 mA. When measuring currents below 250 µA, the accuracy increases to 1 µA. Even though the absolute accuracy is 1 µA in the sub 250 µA range, the AEM is able to detect changes in the current consumption as small as 100 nA.

  • Page 15: Board Controller

    EZR32WG 915MHz Wireless Starter Kit Board Controller 7. Board Controller The kit contains a board controller that is responsible for performing various board-level tasks, such as handling the debugger and the Advanced Energy Monitor. An interface is provided between the EZR32 and the board controller in the form of a UART connection. The connection is enabled by setting the VCOM_ENABLE (PA12) line high, and using the lines VCOM_TX (PB3) and VCOM_RX (PB4) for communication.

  • Page 16: Board Support Package

    EZR32WG 915MHz Wireless Starter Kit Board Support Package 8. Board Support Package The Board Support Package (BSP) is a set of C source and header files that enables easy access to, and control over some board specific features. Using the BSP is not required, and the EZR32 is fully usable without the BSP.

  • Page 17: Connectors

    EZR32WG 915MHz Wireless Starter Kit Connectors 9. Connectors This chapter gives you an overview of the Wireless Starter Kit Mainboard connectivity. The placement of the connectors can be seen in the figure below. In/Out Debug Simplicity Header Connector Figure 9.1. Connector layout 9.1 Radio Board breakout pads...

  • Page 18: Debug Connector (Dbg)

    EZR32WG 915MHz Wireless Starter Kit Connectors 9.2 Debug Connector (DBG) This connector is used for Debug In and Debug Out (see chapter on Debugging). The pinout is described in Table 9.1 Debug Connec- tor Pinout on page VTARGET SWDIO / TMS...

  • Page 19: Simplicity Connector

    EZR32WG 915MHz Wireless Starter Kit Connectors 9.3 Simplicity Connector The Simpicity Connector featured on the Wireless Starter Kit Mainboard enables advanced debugging features such as the AEM, the Virtual COM port and the Packet Trace Interface to be used towards an external target. The pinout is illustrated in the figure below.

  • Page 20: Expansion Header

    EZR32WG 915MHz Wireless Starter Kit Connectors 9.4 Expansion header On the right hand side of the board an angled 20 pin expansion header is provided to allow connection of peripherals or plugin boards. The connecter contains a number of I/O pins that can be used with most of the EZR32 Wonder Gecko's features. Additionally, the VMCU, 3V3 and 5V power rails are also exported.
  • Page 21 EZR32WG 915MHz Wireless Starter Kit Connectors Peripheral Peripheral pin MCU Pin EXP Header pin number Digital to Analog Converter DAC0_CH0 PB11 DAC0_CH1 PB12 Analog Comparator ACMP0_CH0 ACMP0_CH3 ACMP0_CH4 ACMP0_CH5 ACMP0_CH6 ACMP0_O ACMP1_O Operational Amplifier OPAMP_N0 OPAMP_P0 OPAMP_OUT0 PB11 OPAMP_N1 OPAMP_P1...
  • Page 22 EZR32WG 915MHz Wireless Starter Kit Connectors Peripheral Peripheral pin MCU Pin EXP Header pin number Pulse Counter PCNT0_S0IN PCNT0_S1IN PCNT1_S0IN PCNT1_S1IN PCNT2_S0IN PCNT2_S1IN Peripheral Reflex System (PRS) PRS_CH2 Note: Please note that this table only sums up some of the alternate functions available on the expansion header. Consult the EZR32WG330F256R63G datasheet for a complete list of alternate functions.

  • Page 23: Integrated Development Environments

    EZR32WG 915MHz Wireless Starter Kit Integrated Development Environments 10. Integrated Development Environments Figure 10.1. Simplicity Studio Simplicity Studio includes various examples in source form to use with the Starter Kit. To run these examples: 1. Provide power to the board by connecting the DBG USB connector to the PC using the provided USB cable.

  • Page 24: Atollic Truestudio For Arm

    EZR32WG 915MHz Wireless Starter Kit Integrated Development Environments 10.2 Atollic TrueSTUDIO for ARM See the quick start guide for download details for Atollic TrueSTUDIO for ARM. You will find TrueStudio project files in the atollic subfolder of each project. 10.3 Rowley Associates - CrossWorks for ARM See the quick start guide for download details for CrossWorks for ARM.

  • Page 25: Kit Manager And Upgrades

    EZR32WG 915MHz Wireless Starter Kit Kit Manager and Upgrades 11. Kit Manager and Upgrades The Kit Manager is a program that comes with Simplicity Studio. It can perform various kit and EZR32 specific tasks. 11.1 Kit Manager Operation This utility gives the ability to program the EZR32, upgrade the kit, lock and unlock devices and more. Some of the features will only work with Energy Micro kits, while other will work with a generic J-Link debugger connected.

  • Page 26: Schematics, Assembly Drawings And Bom

    Schematics, Assembly Drawings and BOM 12. Schematics, Assembly Drawings and BOM The schematics, assembly drawings and bill of materials (BOM) for the EZR32WG 915MHz Wireless Starter Kit board are available through Simplicity Studio when the kit documentation package has been installed.

  • Page 27: Kit Revision History And Errata

    EZR32WG 915MHz Wireless Starter Kit Kit Revision History and Errata 13. Kit Revision History and Errata 13.1 Revision History The kit revision can be found printed on the box label of the kit, as outlined in the figure below. Figure 13.1. Revision info Table 13.1.

  • Page 28: Document Revision History

    EZR32WG 915MHz Wireless Starter Kit Document Revision History 14. Document Revision History Table 14.1. Document Revision History Revision Number Effective Date Change Description 19.03.2015 Kit Errata added. 23.02.2015 Minor text revision. 1.00 19.02.2015 Major updates. 0.10 23.12.2014 Initial document version.
  • Page 29 The products must not be used within any Life Support System without the specific written consent of Silicon Laboratories. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant personal injury or death.

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