UG187: Blue Gecko Wireless Starter Kit
with BGM113 Module
User's Guide for the Blue Gecko Bluetooth® Module Wireless
Starter Kit
The Blue Gecko Bluetooth® Module Wireless Starter Kit is an excellent starting point to
get familiar with the BGM113 Bluetooth Module.
The Wireless Starter Kit Mainboard contains sensors and peripherals demonstrating
some of the BGM113's many capabilities. The kit provides all necessary tools for developing a Silicon Labs wireless application.
KIT FEATURES
• Supplied with BGM111 Blue Gecko
Bluetooth Module Radio Board BRD4300A
• Supplied with BGM113 Blue Gecko
Bluetooth Module Radio Board BRD4301A
• Ethernet and USB connectivity
• SEGGER J-Link on-board 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 / Push buttons / Reset button
• 20-pin 2.54 mm header for expansion
boards
• Breakout pads for direct access to all radio
I/O pins
• Power sources include USB and CR2032
coin cell holder.
• BGM113 Blue Gecko Bluetooth Module
with 256 kB Flash and 32 kB RAM. (P/N
BGM113)
• Integrated high performance chip antenna
• Transmit power up to +3 dBm
• CPU core 32-bit ARM Cortex-M4
SOFTWARE SUPPORT
• Blue Gecko Bluetooth Software
• Blue Gecko Bluetooth SDK
• Example applications for the kit
• iOS and Android applications
UG187: Blue Gecko Wireless Starter Kit with BGM113 Module
Introduction
1. Introduction
1.1 Description
The idea behind the SLWSTK6101B is to provide a complete development platform for Silicon Labs' BGM113 Blue Gecko Bluetooth
Modules.
The core of the SLWSTK6101B is the Wireless Starter Kit Mainboard which features an on-board J-Link debugger, a virtual COM port
interface, an LCD display and a humidity/temperature sensor and through holes to access all the pins of the Blue Gecko Bluetooth
Smart Modules.
The WSTK Mainboard is paired with an Blue Gecko BGM113 Bluetooth® Module Radio Board that plugs directly into the mainboard.
The radio board includes the BGM113 with a built-in high performance chip antenna.
The Wireless Starter Kit is also supplied with an expansion board (BRD8006A Add-on Board) that can be connected to the WSTK
mainboard expansion header. The expansion board contains additional peripherals such as an accelerometer, buttons, LEDs, joystick
and a footprint for an I2C authentication device.
1.2 Radio Boards
A Wireless Starter Kit consists of one or more mainboards and radio boards that plug into the connectors on the mainboard. Different
radio boards are available which feature different Silicon Labs devices, which each have unique properties and pinouts.
To keep the mainboard design generic, the actual pin mapping of the kit is done on the radio board itself. This means that each radio
board has a uniqe mapping to the Wireless Starter Kit peripherals and connectors such as buttons, LEDs, the display, the EXP header
and the breakout pads. Because this pin mapping is different for every radio board, it is very important that the correct document be
consulted which shows the kit features in context of the radio board plugged in.
This document describes the Wireless Starter Kit as it behaves with the BGM113 Radio Board (BRD4301A). If the user intends to use
the BGM111 Radio Board (BRD4300A) instead, he or she should refer to UG122: Blue Gecko Wireless Starter Kit with BGM111 Mod-ule.
1.3 Kit Contents
The following items are contained in the Blue Gecko Wireless Starter Kit box:
• 1x BRD4001A Wireless Starter Kit Mainboard
• 1x BRD4300A Blue Gecko BGM111 Bluetooth® Module Radio Board
• 1x BRD4301A Blue Gecko BGM113 Bluetooth® Module Radio Board
• 1x BRD8006A Blue Gecko Module Kit Add-on Board
• 1x CR2032 Lithium battery
• 1x USB Type A <-> USB Mini-B cables
Please refer to separate documentation for the included radio boards for detailed specifications and RF performance figures.
1.4 Getting Started
Detailed instructions for how to get started with your new Blue Gecko Wireless Starter Kit can be found on the Silicon Labs Simplicity
web pages:
UG187: Blue Gecko Wireless Starter Kit with BGM113 Module
Connectors
4. 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.
4.1 Breakout pads
Most of the BGM113's pins are routed from the radio board to breakout pads at the top and bottom edges of the Wireless Starter Kit
Mainboard. A 2.54 mm pitch pin header can be soldered on for easy access to the pins. The figure below shows you how the pins of
the BGM113 maps to the pin numbers printed on the breakout pads. To see the available functions on each, please refer to the
BGM113 Data Sheet.
Figure 4.2 Radio Board Pin Mapping on Breakout Pads
Figure 4.1 Connector Layout
12
4
8
6
10
3
5
9
7
12
13
14
11
1516
17
18
2019
VMCU
PB11
PB12
PB13
PD13
PA0
PA1
PC10
5V
3V3
GND
PF2
PF3
NC
NC
NC
NC
PC11
Board ID SDA
Board ID SCL
Reserved (Board Identification)
BGM113 I/O Pin
Alternate function
/
/
/
/
/
/
/
SPI_MOSI
SPI_MISO
SPI_SCK
SPI_CS
UART_TX
UART_RX
I2C_SDA
/
/
/
/
/
/
/
GPIO
GPIO
I2C_SCL
UG187: Blue Gecko Wireless Starter Kit with BGM113 Module
Connectors
4.2 Expansion header
On the right hand side of the board an angled 20 pin expansion header is provided to allow connection of peripherals or plug-in boards.
The connector contains a number of I/O pins that can be used with most of the BGM113 Blue Gecko's features. Additionally, the VMCU,
3V3 and 5V power rails are also exported.
The connector follows a standard which ensures that commonly used peripherals such as an SPI, a UART and an I2C bus are available
on fixed locations in the connector. The rest of the pins are used for general purpose I/O. This allows the definition of expansion boards
that can plug into a number of different Silicon Labs starter kits.
The figure below shows the pin assignment of the expansion header for the Blue Gecko Bluetooth® Module Wireless Starter Kit. Because of limitations in the number of available GPIO pins, some of the expansion header pins are shared with kit features.
Figure 4.3 Expansion Header
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. Table 4.1 Expansion Header Pinout on page 5 includes
an overview of the mainboard features that share pins with the Expansion Header.
UG187: Blue Gecko Wireless Starter Kit with BGM113 Module
Connectors
4.3 Debug Connector (DBG)
The Debug Connector serves a dual purpose. Based on the "debug mode", which can be set up using Simplicity Studio. In the "Debug
IN" mode this connector allows an external debug emulator to be used with the on-board BGM113. In the "Debug OUT" mode this connector allows the kit to be used as a debugger towards an external target. In the "Debug MCU" (default) mode this connector is isolated
from the debug interface of both the Board Controller and the on-board target device.
Because this connector is automatically switched to support the different operating modes, it is only available when the Board Controller
is powered (J-Link USB cable connected). If debug access to the target device is required when the Board Controller is unpowered, this
should be done by connecting directly to the appropriate breakout pins.
The pinout of the connector follows that of the standard ARM Cortex Debug+ETM 19-pin connector. The pinout is described in detail
below. Note that even though the connector has support for both JTAG and ETM Trace in addition to Serial Wire Debug, it does not
necessarily mean that the kit or the on-board target device supports this.
Figure 4.4 Debug Connector
Note that the pin-out matches the pin-out of an ARM Cortex Debug+ETM connector, but these are not fully compatible as pin 7 is physically removed from the Cortex Debug+ETM connector. Some cables have a small plug that prevent them from being used when this pin
is present. If this is the case, remove the plug, or use a standard 2x10 1.27 mm straight cable instead.
Table 4.2. Debug Connector Pin Descriptions
Pin number(s)FunctionNote
1VTARGETTarget voltage on the debugged application.
2TMS / SDWIO / C2DJTAG test mode select, Serial Wire data or C2 data
4TCK / SWCLK / C2CK JTAG test clock, Serial Wire clock or C2 clock
6TDO/SWOJTAG test data out or Serial Wire Output
8TDI / C2DpsJTAG test data in, or C2D "pin sharing" function
10RESET / C2CKpsTarget device reset, or C2CK "pin sharing" function
12TRACECLKETM Trace Clock
14TRACED0ETM Trace Data 0
16TRACED1ETM Trace Data 1
18TRACED2ETM Trace Data 2
20TRACED3ETM Trace Data 3
9Cable detectThis signal must be pulled to ground by the external debugger or application for ca-