Silicon Laboratories UG268 User Manual
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Silicon Laboratories UG268 User Manual

Efr32bg1 2.4 ghz 8 dbm wlcsp wireless starter kit
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UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP
Wireless Starter Kit User's Guide
A Silicon Labs Wireless Starter Kit for the EFR32BG1 Blue Gecko
is an excellent starting point to get familiar with the device, and it
provides all necessary tools for developing a Silicon Labs wireless
application.
The Wireless Starter Kit Mainboard contains sensors and peripherals enabling easy
demonstration of some of the EFR32™'s many capabilities. An on-board J-Link debug-
ger allows debugging of the attached radio board as well as providing a debug connec-
tion for external hardware.
A plug-in Radio Board contains the reference design for the EFR32 itself, including the
RF section and device-specific hardware.
silabs.com | Smart. Connected. Energy-friendly.
WSTK MAINBOARD FEATURES
• Ethernet and USB connectivity
• Advanced Energy Monitor
• Virtual COM Port
• Packet Trace Interface support
• SEGGER J-Link on-board debugger
• Supports debugging the attached radio
board or an external device
• Silicon Labs' Si7021 Relative Humidity
and Temperature sensor
• Ultra low power 128x128 pixel Memory
LCD
• User LEDs / Pushbuttons
• 20-pin 2.54 mm header for expansion
boards
• Breakout pads for direct access to all radio
I/O pins
• Power sources include USB, CR2032 coin
cell and AA batteries.
BRD4101B RADIO BOARD FEATURES
• EFR32BG1 Blue Gecko Wireless SoC
with 256 kB Flash and 32 kB RAM
(EFR32BG1B232F256GJ43).
• Inverted-F PCB antenna (2.4 GHz band)
• 8 Mbit low-power serial flash for over-the-
air upgrades.
SOFTWARE SUPPORT
• Simplicity Studio™
• Energy Profiler
• Network Analyzer
Rev. 1.00

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  • Page 1 UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide A Silicon Labs Wireless Starter Kit for the EFR32BG1 Blue Gecko WSTK MAINBOARD FEATURES is an excellent starting point to get familiar with the device, and it provides all necessary tools for developing a Silicon Labs wireless •...

  • Page 2: Introduction

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Introduction 1. Introduction The EFR32BG1 Blue Gecko Wireless SoC itself is featured on a Radio Board that forms a complete reference design, inluding the RF section and other components.

  • Page 3: Hardware Overview

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Hardware Overview 2. Hardware Overview 2.1 Hardware Layout The layout of the EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit is shown in the figure below. 1.28" Memory-LCD Display...

  • Page 4: Block Diagram

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Hardware Overview 2.2 Block Diagram An overview of the EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit is shown in the figure below. Board USB Mini-B Controller...

  • Page 5: Connectors

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Connectors 3. Connectors This chapter gives you an overview of the Wireless STK Mainboard connectivity. The placement of the connectors can be seen in the figure below. Ethernet...

  • Page 6: Breakout Pads

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Connectors 3.3 Breakout Pads Most of the EFR32's pins are routed from the radio board to breakout pads at the top and bottom edges of the Wireless STK Main- board.

  • Page 7: Expansion Header Pin-Out

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Connectors 3.4.1 Expansion Header Pin-out The pin-routing on the EFR32 is very flexible, so most peripherals can be routed to any pin. However, many pins are shared between the Expansion Header and other functions on the Wireless STK Mainboard.

  • Page 8: Debug Connector

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Connectors 3.5 Debug Connector The Debug Connector serves multiple purposes based on the "debug mode" setting which can be configured in Simplicity Studio. When the debug mode is set to "Debug IN", the debug connector can be used to connect an external debugger to the EFR32 on the radio board.

  • Page 9: Simplicity Connector

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Connectors 3.6 Simplicity Connector The Simplicity Connector enables the advanced debugging features, such as the AEM, the Virtual COM port and the Packet Trace In- terface, to be used towards an external target. The pinout is illustrated in the figure below.

  • Page 10: Debug Adapter

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Connectors 3.7 Debug Adapter BRD8010A STK/WSTK Debug Adapter is an adapter board which plugs directly into the Debug Connector and the Simplicity Connector on the mainboard and combines selected functionality from these two to a smaller footprint 10-pin connector which is more suitable for space constrained designs.

  • Page 11: Power Supply And Reset

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Power Supply and Reset 4. Power Supply and Reset 4.1 Radio Board Power Selection The EFR32 on a Wireless Starter Kit can be powered by one of these sources: •...

  • Page 12: Board Controller Power

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Power Supply and Reset 4.2 Board Controller Power The board controller is responsible for important features such as the debugger and the Advanced Energy Monitor, and is powered exclusively through the USB port in the top left corner of the board.

  • Page 13: Peripherals

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals 5. Peripherals The starter kit has a set of peripherals that showcase some of the features of the EFR32. Be aware that most EFR32 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 14: Memory Lcd-Tft Display

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals 5.2 Memory LCD-TFT Display A 1.28-inch SHARP Memory LCD-TFT is available on the kit 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 15: Serial Flash

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals 5.3 Serial Flash The BRD4101B radio board is equipped with an 8 Mbit Macronix MX25R SPI flash that is connected directly to the EFR32. Figure 5.3 Radio Board Serial Flash on page 14 shows how the serial flash is connected to the EFR32.

  • Page 16: Si7021 Relative Humidity And Temperature Sensor

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals 5.4 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 17: Virtual Com Port

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals 5.5 Virtual COM Port An asynchronous serial connection to the board controller is provided for application data transfer between a host PC and the target EFR32. This eliminates the need for an external serial port adapter.

  • Page 18: Host Interfaces

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals 5.5.1 Host Interfaces Data sent to the board controller through the VCOM interface is available in two different ways to the user. At the same time, data can be sent to the target device using these interfaces: •...

  • Page 19: Hardware Handshake

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals 5.5.3 Hardware Handshake The VCOM peripheral supports basic RTS/CTS flow control. VCOM_CTS (target clear to send) is a signal that is output from the board controller and input to the target device. The board controller de-asserts this pin whenever its input buffer is full and it is unable to accept more data from the target device.

  • Page 20: I 2 C I/O Expander

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals 5.6 I C I/O expander The EFR32BG1 2.4 GHz 8 dBm WLCSP radio board features the wafer level chip scale package variant of the EFR32 Blue Gecko Wireless SoC.

  • Page 21: Communication

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals 5.6.1 Communication The EFM8 device that performs the I/O expander function spends most of the time in sleep mode, with its I C peripheral disabled. In order to perform register accesses to the device, it must first be woken up using the IOEXP_WAKE (PF0) pin. The IOEXP_WAKE pin should be pulled low for the duration of the I C access.
  • Page 22 UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Peripherals Addr Reg Name Type Description Reset 0x03 LED_CTRL LED control register 0x00 • Bit 7 - REG_CTRL: Set this bit to allow control of LED0 and LED1 us- ing this register.

  • Page 23: Board Controller

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Board Controller 6. Board Controller The Wireless STK Mainboard contains a dedicated microcontroller for some of the advanced kit features provided. This microcontroller is referred to as the "Board Controller", and is not programmable by the user. The board controller acts as an interface between the host PC and the target device on the radio board, as well as handling some house-keeping functions on the board.

  • Page 24: Command Examples

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Board Controller 6.1.3 Command Examples PTI Configuration pti config 0 efruart 1600000 Configures PTI to use the "EFRUART" mode at 1.6 Mb/s. Serial Port Configuration serial config vcom handshake enable Enables hardware handshake on the VCOM UART connection.

  • Page 25: Advanced Energy Monitor

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Advanced Energy Monitor 7. Advanced Energy Monitor 7.1 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 26: Aem Accuracy And Performance

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Advanced Energy Monitor 7.3 AEM Accuracy and Performance The AEM is capable of measuring currents in the range of 0.1 µA to 95 mA. For currents above 250 µA, the AEM is accurate within 0.1 mA.

  • Page 27: On-Board Debugger

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide On-Board Debugger 8. On-Board Debugger The Wireless STK Mainboard contains an integrated debugger, which can be used to download code and debug the EFR32. In addition to programming a target on a plug-in radio board, the debugger can also be used to program and debug external Silicon Labs EFM32, EFM8, EZR32 and EFR32 devices connected through the debug connector.

  • Page 28: Debug Modes

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide On-Board Debugger 8.2 Debug Modes Programming external devices is done by connecting to a target board through the provided Debug IN/OUT Connector, and by setting the debug mode to [Out]. The same connector can also be used to connect an external debugger to the EFR32 Wireless SoC on the kit, by setting debug mode to [In].

  • Page 29: Debugging During Battery Operation

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide On-Board Debugger Board Host Controller Computer RADIO BOARD External Debug Probe DEBUG HEADER Figure 8.3. Debug IN Note: For "Debug IN" to work, the board controller on the kit must be powered throught the USB connector.

  • Page 30: Kit Configuration And Upgrades

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Kit Configuration and Upgrades 9. Kit Configuration and Upgrades The kit configuration dialog in Simplicity Studio allows you to change the J-Link adapter debug mode, upgrade its firmware and change other configuration settings.

  • Page 31: Schematics, Assembly Drawings And Bom

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Schematics, Assembly Drawings and BOM 10. Schematics, Assembly Drawings and BOM Schematics, assembly drawings and bill of materials (BOM) are available through Simplicity Studio when the kit documentation pack- age has been installed.

  • Page 32: Kit Revision History

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Kit Revision History 11. Kit Revision History The kit revision can be found printed on the kit packaging label, as outlined in the figure below. EFR32BG1 2.4 GHz 8 dBm WLCSP Radio Board...

  • Page 33: Document Revision History

    UG268: EFR32BG1 2.4 GHz 8 dBm WLCSP Wireless Starter Kit User's Guide Document Revision History 12. Document Revision History Revision 1.00 2017-02-21 Initial document version. silabs.com | Smart. Connected. Energy-friendly. Rev. 1.00 | 32...

  • Page 34: Table Of Contents

    Table of Contents 1. Introduction ....... . 1 1.1 Radio Boards ......1 1.2 Ordering Information .
  • Page 35 6.2 Virtual UART ......23 7. Advanced Energy Monitor ......7.1 Introduction.
  • Page 36 Trademark Information Silicon Laboratories Inc.® , Silicon Laboratories®, Silicon Labs®, SiLabs® and the Silicon Labs logo®, Bluegiga®, Bluegiga Logo®, Clockbuilder®, CMEMS®, DSPLL®, EFM®, EFM32®, EFR, Ember®, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZRadio®, EZRadioPRO®, Gecko®, ISOmodem®, Precision32®, ProSLIC®, Simplicity Studio®, SiPHY®, Telegesis, the Telegesis Logo®, USBXpress®...
  • Page 37 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Silicon Laboratories SLWRB4101B...

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