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UG234: BGM121 Blue Gecko SiP Module
Wireless Starter Kit User's Guide
A Wireless Starter Kit with the BRD4302A Radio Board is an ex-
cellent starting point to get familiar with the BGM121 Blue Gecko
Module. It also provides the necessary tools for developing a Sili-
con Labs wireless application.
BRD4302A contains the BGM121 SiP Module, and it is a plug-in board for the Wireless
Starter Kit Mainboard.
The Wireless Starter Kit Mainboard contains an on-board J-Link debugger with a Packet
Trace Interface and a virtual COM port, enabling application development and debugging
the attached radio board as well as external hardware. The mainboard also contains
sensors and peripherals for easy demonstration of some of the BGM121's many capabil-
ities.
This document describes how to use the BRD4302A Radio Board together with a Wire-
less Starter Kit Mainboard.
silabs.com | Building a more connected world.
BRD4302A RADIO BOARD FEATURES
• BGM121 Blue Gecko SiP Module with 256
kB Flash and 32 kB RAM. Fully integrated
chip antenna, RF matching network,
crystals and decoupling
(BGM121A256V1).
• 8 Mbit low-power serial flash for over-the-
air upgrades.
WIRELESS STK MAINBOARD FEATURES
• Advanced Energy Monitor
• Packet Trace Interface
• Virtual COM Port
• SEGGER J-Link on-board debugger
• External device debugging
• Ethernet and USB connectivity
• Silicon Labs Si7021 Relative Humidity and
Temperature sensor
• Low Power 128x128 pixel Memory LCD
• User LEDs / Pushbuttons
• 20-pin 2.54 mm EXP header
• Breakout pads for SiP Module I/O
• CR2032 coin cell battery support
EXPANSION BOARD FEATURES
• Accelerometer
• Buttons and LEDs
• Joystick
SOFTWARE SUPPORT
• Simplicity Studio™
• Energy Profiler
• Network Analyzer
• iOS and Android applications
ORDERING INFORMATION
• SLWSTK6101C
• SLWRB4302A
Rev. 1.02
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Table of Contents
Related Manuals for Silicon Laboratories Blue Gecko BGM121
Summary of Contents for Silicon Laboratories Blue Gecko BGM121
- Page 1 UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide A Wireless Starter Kit with the BRD4302A Radio Board is an ex- cellent starting point to get familiar with the BGM121 Blue Gecko BRD4302A RADIO BOARD FEATURES Module. It also provides the necessary tools for developing a Sili- •...
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Page 2: Table Of Contents
Table of Contents 1. Introduction ....... . 4 1.1 Radio Boards ......4 1.2 Ordering Information . - Page 3 7.1.2 Built-in Help ......25 7.1.3 Command Examples ......26 7.2 Virtual UART .
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Page 4: Introduction
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Introduction 1. Introduction The BGM121 Blue Gecko SiP Module itself is featured on a Radio Board that forms a complete reference design, including the RF section and other components. The Radio Board plugs directly into a Wireless Starter Kit Mainboard. -
Page 5: Hardware Overview
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Hardware Overview 2. Hardware Overview 2.1 Hardware Layout The layout of the BGM121 Blue Gecko SiP Module Wireless Starter Kit is shown in the figure below. Radio Board Breakout Pads Plug-in Radio Board On-board USB and Si7021 Humidity and... -
Page 6: Block Diagram
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Hardware Overview 2.2 Block Diagram An overview of the BGM121 Blue Gecko SiP Module Wireless Starter Kit is shown in the figure below. Wireless STK Mainboard Board Controller USB Mini-B RJ-45 Ethernet Connector Connector... -
Page 7: Connectors
UG234: BGM121 Blue Gecko SiP Module 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 are shown in the figure below. Ethernet Connector J-Link USB Connector Debug Connector... -
Page 8: Breakout Pads
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Connectors 3.3 Breakout Pads Most pins of the BGM121 are routed from the radio board to breakout pads at the top and bottom edges of the Wireless STK Main- board. -
Page 9: Exp Header
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Connectors 3.4 EXP Header The EXP header is an angled 20-pin expansion header provided to allow connection of peripherals or plugin boards to the kit. It is loca- ted on the right-hand side of the mainboard and it contains a number of I/O pins that can be used with most of the BGM121 Blue Gecko's features. -
Page 10: Exp Header Pinout
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Connectors 3.4.1 EXP Header Pinout The pin-routing on the BGM121 is very flexible, so most peripherals can be routed to any pin. However, many pins are shared between the EXP header and other functions on the Wireless STK Mainboard. The table below includes an overview of the mainboard features that share pins with the EXP header. -
Page 11: Debug Connector
UG234: BGM121 Blue Gecko SiP Module 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 BGM121 on the radio board. -
Page 12: Simplicity Connector
UG234: BGM121 Blue Gecko SiP Module 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 Inter- face, to be used towards an external target. The pinout is illustrated in the figure below. VMCU VCOM_TX VCOM_RX... -
Page 13: Debug Adapter
UG234: BGM121 Blue Gecko SiP Module 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. It combines selected functionality from the two connectors to a smaller footprint 10-pin connector, which is more suitable for space constrained designs. -
Page 14: Power Supply And Reset
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Power Supply and Reset 4. Power Supply and Reset 4.1 Radio Board Power Selection The BGM121 on a Wireless Starter Kit can be powered by one of these sources: •... -
Page 15: Board Controller Power
UG234: BGM121 Blue Gecko SiP Module 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 AEM, and is powered exclusively through the USB port in the top left corner of the board. -
Page 16: Peripherals
UG234: BGM121 Blue Gecko SiP Module 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 BGM121. Be aware that most BGM121 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 17: Memory Lcd-Tft Display
UG234: BGM121 Blue Gecko SiP Module 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 18: Serial Flash
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Peripherals 5.3 Serial Flash The BRD4302A Radio Board is equipped with an 8 Mbit Macronix MX25R SPI flash that is connected directly to the BGM121. The figure below shows how the serial flash is connected to the BGM121. VMCU PC8 (US1_CLK #11) SCLK... -
Page 19: Si7021 Relative Humidity And Temperature Sensor
UG234: BGM121 Blue Gecko SiP Module 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 20: Virtual Com Port
UG234: BGM121 Blue Gecko SiP Module 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 BGM121. This eliminates the need for an external serial port adapter. Isolation &... -
Page 21: Host Interfaces
UG234: BGM121 Blue Gecko SiP Module 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 22: Hardware Handshake
UG234: BGM121 Blue Gecko SiP Module 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 23: Expansion Board
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Expansion Board 6. Expansion Board The User Interface Expansion Board included with the BGM121 Wireless STK includes the following features: • 1x 3-axis accelerometer (Bosch Sensortech BMA280) • 1x Joystick with 9 measurable positions •... -
Page 24: Joystick
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Expansion Board 6.3 Joystick The analog joystick offers 9 measureable positions. This joystick is connected to the BGM121 pin PD4. Each of the joystick output pins are connected to a different resistor value to create a unique voltage that is measured by the internal ADC on the BGM121. The joystick output is connected to AD Channel 0 (ADC0). -
Page 25: Board Controller
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Board Controller 7. 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 26: Command Examples
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Board Controller 7.1.3 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 27: Advanced Energy Monitor
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Advanced Energy Monitor 8. Advanced Energy Monitor 8.1 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. This is what the Simplicity Energy Profiler is designed to do. -
Page 28: Aem Accuracy And Performance
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Advanced Energy Monitor 8.3 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 29: On-Board Debugger
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide On-Board Debugger 9. On-Board Debugger The Wireless STK Mainboard contains an integrated debugger, which can be used to download code and debug the BGM121. In addi- tion 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 30: Debug Modes
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide On-Board Debugger 9.2 Debug Modes Programming external devices is done by connecting to a target board through the provided debug connector, and by setting the debug mode to [Out]. The same connector can also be used to connect an external debugger to the BGM121 SiP Module on the kit, by setting debug mode to [In]. -
Page 31: Debugging During Battery Operation
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide On-Board Debugger Note: For "Debug IN" to work, the kit board controller must be powered through the Debug USB connector. 9.3 Debugging During Battery Operation When the BGM121 is powered by battery and the J-Link USB is still connected, the on-board debug functionality is available. If the USB power is disconnected, the Debug IN mode will stop working. -
Page 32: Kit Configuration And Upgrades
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Kit Configuration and Upgrades 10. 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 33: Schematics, Assembly Drawings, And Bom
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Schematics, Assembly Drawings, and BOM 11. 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 34: Mainboard Connectors
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Mainboard Connectors 12. Mainboard Connectors BRD4302A contains two dual-row, female socket, 0.05" pitch polarized connectors (P/N: SFC-120-T2-L-D-A-K-TR) which provide the interface to the Wireless STK Mainboard. The Mainboard has the corresponding male header pin connectors (P/N: TFC-120-02-F-D- LC-ND). -
Page 35: Mechanical Details
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Mechanical Details 13. Mechanical Details The mechanical layout of BRD4302A BGM121 Blue Gecko SiP Module Radio Board is illustrated in the figures below. 40 mm Figure 13.1. BRD4302A Top View 20 mm Figure 13.2. -
Page 36: Radio Board Revision History And Errata
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Radio Board Revision History and Errata 14. Radio Board Revision History and Errata 14.1 BRD4302A Revision History The Radio Board revision is printed on the backside of the board. Table 14.1. -
Page 37: Kit Revision History
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Kit Revision History 15. Kit Revision History The kit revision can be found printed on the kit packaging label, as outlined in the figure below. Blue Gecko Module Wireless Starter Kit SLWSTK6101C 29-09-16 124802042... -
Page 38: Document Revision History
UG234: BGM121 Blue Gecko SiP Module Wireless Starter Kit User's Guide Document Revision History 16. Document Revision History Revision 1.02 March 2018 • Added information about BRD4302A revision A04. • Added information about SLWSTK6101C revision A01. • Added information about SLWRB4302A revision A01. Revision 1.01 June 2017 •... - Page 39 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®, Micrium, Precision32®, ProSLIC®, Simplicity Studio®, SiPHY®, Telegesis, the Telegesis Logo®, USBXpress®, Zentri and others are trademarks or registered...
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