Silicon Laboratories UG338 User manual

UG338: BGM13P22 Blue Gecko Module

Radio Board User's Guide

A Wireless Starter Kit with the BRD4306A Radio Board is an ex-

cellent starting point to get familiar with the BGM13P Blue Gecko

Bluetooth® Module. It also provides the necessary tools for devel-

oping a Silicon Labs wireless application.

BRD4306A contains the BGM13P22 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 BGM13P's many capabil-

ities.

This document describes how to use the BRD4306A Radio Board together with a Wire-

less Starter Kit Mainboard.

BRD4306A RADIO BOARD FEATURES

• BGM13P Blue Gecko Module with 512 kB

Flash, 64 kB RAM. Fully integrated chip

antenna, RF matching network, crystals,

and decoupling (BGM13P22F512GA-V2).

• 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 Module I/O

• CR2032 coin cell battery support

SOFTWARE SUPPORT

• Simplicity Studio™

• Energy Profiler

• Network Analyzer

• iOS and Android applications

ORDERING INFORMATION

• SLWRB4306A

silabs.com | Building a more connected world. Rev. 1.1

Table of Contents

1. Introduction ................................4

1.1 Radio Boards ..............................4

1.2 Ordering Information ...........................4

1.3 Getting Started .............................4

2. Hardware Overview .............................5

2.1 Hardware Layout .............................5

2.2 Block Diagram..............................6

3. Connectors ................................7

3.1 J-Link USB Connector ...........................7

3.2 Ethernet Connector ............................7

3.3 Breakout Pads .............................8

3.4 EXP Header ..............................9

3.4.1 EXP Header Pinout ..........................10

3.5 Debug Connector.............................11

3.6 Simplicity Connector............................12

3.7 Debug Adapter .............................13

4. Power Supply and Reset .......................... 14

4.1 Radio Board Power Selection ........................14

4.2 Board Controller Power...........................15

4.3 BGM13P Reset .............................15

5. Peripherals ............................... 16

5.1 Push Buttons and LEDs ..........................16

5.2 Memory LCD-TFT Display..........................17

5.3 Serial Flash ..............................18

5.4 Si7021 Relative Humidity and Temperature Sensor .................19

5.5 Virtual COM Port .............................20

5.5.1 Host Interfaces ...........................21

5.5.2 Serial Configuration ..........................21

5.5.3 Hardware Handshake .........................22

6. Board Controller ............................. 23

6.1 Admin Console .............................23

6.1.1 Connecting .............................23

6.1.2 Built-in Help ............................23

6.1.3 Command Examples .........................24

6.2 Virtual UART ..............................24

7. Advanced Energy Monitor ......................... 25

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7.1 Introduction...............................25

7.2 Theory of Operation ............................25

7.3 AEM Accuracy and Performance .......................26

7.4 Usage ................................26

8. On-Board Debugger ............................ 27

8.1 Host Interfaces .............................27

8.1.1 USB Interface ............................27

8.1.2 Ethernet Interface ..........................27

8.1.3 Serial Number Identification .......................27

8.2 Debug Modes ..............................28

8.3 Debugging During Battery Operation ......................29

9. Kit Configuration and Upgrades ....................... 30

9.1 Firmware Upgrades ............................30

10. Schematics, Assembly Drawings, and BOM .................. 31

11. Kit Revision History ........................... 32

11.1 SLWRB4306A Revision History .......................32

12. Document Revision History ........................ 33

silabs.com | Building a more connected world. Rev. 1.1 | 3

1. Introduction

The BGM13P22 Blue Gecko Module is featured on a radio board that plugs directly into a Wireless Starter Kit (WSTK) Mainboard. The

mainboard features several tools for easy evaluation and development of wireless applications. An on-board J-Link debugger enables

programming and debugging on the target device over USB or Ethernet. The Advanced Energy Monitor (AEM) offers real-time current

and voltage monitoring. A virtual COM port interface (VCOM) provides an easy-to-use serial port connection over USB or Ethernet. The

Packet Trace Interface (PTI) offers invaluable debug information about transmitted and received packets in wireless links.

All debug functionality, including AEM, VCOM and PTI, can also be used towards external target hardware instead of the attached radio

board.

To further enhance its usability, the mainboard contains sensors and peripherals that demonstrates some of the many capabilities of the

BGM13P22. A 20 pin expansion header (EXP header) is also provided that allows connection of expansion boards (EXP boards) to the

kit.

1.1 Radio Boards

A Wireless Starter Kit consists of one or more mainboards and radio boards that plug into the mainboard. Different radio boards are

available, each featuring different Silicon Labs devices with different operating frequency bands.

Since the mainboard is designed to work with all different radio boards, the actual pin mapping from a device pin to a mainboard feature

is done on the radio board. This means that each radio board has its own pin mapping to the Wireless Starter Kit features 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

important that the correct document be consulted which shows the kit features in context of the radio board plugged in.

This document explains how to use the Wireless Starter Kit when the BGM13P22 Blue Gecko Module Radio Board (BRD4306A) is

combined with a Wireless STK Mainboard. The combination of these two boards is hereby referred to as a Wireless Starter Kit (Wire-

less STK).

1.2 Ordering Information

BRD4306A can be obtained as a separate radio board, SLWRB4306A. The radio board is intended to be used together with a Wireless

STK Mainboard that can be obtained with any Silicon Labs Wireless Starter Kit.

Table 1.1. Ordering Information

Part Number Description Contents

SLWRB4306A BGM13P22 Blue Gecko Module Radio Board 1x BRD4306A BGM13P22 Blue Gecko Module Ra-

dio Board

1.3 Getting Started

Detailed instructions for how to get started can be found on the Silicon Labs web pages:

http://www.silabs.com/bluetooth-getstarted

UG338: BGM13P22 Blue Gecko Module Radio Board User's Guide

Introduction

silabs.com | Building a more connected world. Rev. 1.1 | 4

2. Hardware Overview

2.1 Hardware Layout

The layout of the BGM13P22 Blue Gecko Module Wireless Starter Kit is shown in the figure below.

BGM13P22

Module

Radio Board

Breakout pads

1.28" Memory-LCD Display

Ultra-low power

128 x 128 pixel resolution

SPI interface

Ethernet RJ-45

J-Link Debugger

Virtual COM port

Packet Trace

Advanced Energy Monitoring

USB Mini-B

J-Link Debugger

Virtual COM port

Packet Trace

Advanced Energy Monitoring

Coin Cell Holder

CR2032 Battery

Power Select Switch

BAT / USB / AEM

2x User Push Buttons 2x User LEDs

Simplicity Connector

Virtual COM port

Packet Trace

Advanced Energy Monitoring

Debug Connector

ARM Coresight 19-pin

OUT: External targets

IN: External debug probes

Reset Button

Si7021

Relative Temperature &

Humidity Sensor

EXP Header

Expansion board connector

Figure 2.1. Kit Hardware Layout

UG338: BGM13P22 Blue Gecko Module Radio Board User's Guide

Hardware Overview

silabs.com | Building a more connected world. Rev. 1.1 | 5

2.2 Block Diagram

An overview of the BGM13P22 Blue Gecko Module Wireless Starter Kit is shown in the figure below.

Wireless STK Mainboard

USB Mini-B

Connector

RJ-45 Ethernet

Connector

Debug

UART

Packet Trace

AEM

Debug

UART

ETM Trace

Packet Trace

AEM

Debug

UART

Packet Trace

AEM

Simplicity

Connector

Debug

Connector

Board

Controller

Multiplexer

OUT

MCU

BGM13P

Module

GPIO

EXP

Header

User Buttons

& LEDs

GPIO

128 x 128 pixel

Memory LCD

I2C Si7021

Temperature

& Humidity

Sensor

SPI 8 Mbit

MX25R

Serial Flash

Figure 2.2. Kit Block Diagram

UG338: BGM13P22 Blue Gecko Module Radio Board User's Guide

Hardware Overview

silabs.com | Building a more connected world. Rev. 1.1 | 6

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.

Simplicity

Connector

Debug

Connector

GND

P25

P24

P27

P26

P29

P28

P31

P30

P33

P32

P35

P34

P37

P36

P39

P38

P41

P40

P43

P42

P45

P44

GND

Radio Board

Connectors

EXP Header

GND

VMCU

P11

P10

P13

P12

P15

P14

P17

P16

P19

P18

P21

P20

GND

P23

P22

VRF

3V3

Ethernet

Connector

J-Link USB

Connector

Figure 3.1. Mainboard Connector Layout

3.1 J-Link USB Connector

The J-Link USB connector is situated on the left side of the Wireless Starter Kit Mainboard. Most of the kit's development features are

supported through this USB interface when connected to a host computer, including:

• Debugging and programming of the target device using the on-board J-Link debugger

• Communication with the target device over the virtual COM port using USB-CDC

• Accurate current profiling using the AEM

In addition to providing access to development features of the kit, this USB connector is also the main power source for the kit. USB 5V

from this connector powers the board controller and the AEM. It is recommended that the USB host be able to supply at least 500 mA

to this connector, although the actual current required will vary depending on the application.

3.2 Ethernet Connector

The Ethernet connector provides access to all of the Wireless Starter Kit's development features over TCP/IP. The Ethernet interface

provides some additional development features to the user. Supported features include:

• Debugging and programming of the target device using the on-board J-Link debugger

• Communication with the target device over the virtual COM port using TCP/IP socket 4901

• "VUART" communication with the target device over the debug SWD/SWO interface using TCP/IP socket 4900

• Accurate current profiling using the AEM

• Real-time radio packet and network analysis using the Packet Trace Interface

• Access to advanced configuration options using the admin console over TCP/IP socket 4902

Please note that the Wireless Starter Kit cannot be powered using the Ethernet connector, so in order to use this interface, the USB

connector must be used to provide power to the board.

UG338: BGM13P22 Blue Gecko Module Radio Board User's Guide

Connectors

silabs.com | Building a more connected world. Rev. 1.1 | 7

3.3 Breakout Pads

Most pins of the BGM13P are routed from the radio board to breakout pads at the top and bottom edges of the Wireless STK Main-

board. 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

BGM13P maps to the pin numbers printed on the breakout pads. To see the available functions on each, refer to the data sheet for

BGM13P22F512GA-V2.

GND

VMCU

P23 / PD15 / DISP_ENABLE / SENSOR_ENABLE

P21 / PD14 / DISP_SCS

P19 / PD13 / DISP_EXTCOMIN

P17 / NC

GND

P15 / NC

P13 / PC10 / EXP16 / I2C_SDA

P11 / PA1 / EXP14 / VCOM_RX

P9 / PA0 / EXP12 / VCOM_TX

P7 / PC9 / EXP10

P5 / PC8 / EXP8 / FLASH_SCLK / DISP_SCLK

P3 / PC7 / EXP6 / FLASH_MISO

P1 / PC6 / EXP4 / FLASH_MOSI / DISP_SI

VRF

GND

VMCU

PTI_SYNC / PB13 / P22

VCOM_ENABLE / PA5 / P20

FLASH_SCS / PA4 / P18

NC / P16

GND

NC / P14

I2C_SCL / EXP15 / PC11 / P12

DBG_TDI / EXP13 / PF3 / P10

EXP11 / NC / P8

EXP9 / PF5 / P6

EXP7 / PF4 / P4

VCOM_RTS / EXP5 / PA3 / P2

VCOM_CTS / EXP3 / PA2 / P0

VRF

J101

GNDGND

5V5V

NCNC

P45 / NCNC / P44

P43 / NCNC / P42

P41 / NCNC / P40

3V33V3

P39 / NCNC / P38

P37 / PD15 / DISP_ENABLE / SENSOR_ENABLENC / P36

P35 / NCNC / P34

P33 / PF7 / BUTTON1_LED1NC / P32

P31 / PF6 / BUTTON0_LED0NC / P30

P29 / PF2 / DBG_TDO_SWONC / P28

P27 / PF1 / DBG_TMS_SWDIONC / P26

P25 / PF0 / DBG_TCK_SWCLKPTI_DATA / PB11 / P24

GNDGND

J102

Figure 3.2. Breakout Pad Pin Mapping

UG338: BGM13P22 Blue Gecko Module Radio Board User's Guide

Connectors

silabs.com | Building a more connected world. Rev. 1.1 | 8

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 BGM13P 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 availa-

ble on fixed locations in the connector. The rest of the pins are used for general purpose IO. This allows the definition of expansion

boards (EXP boards) that can plug into a number of different Silicon Labs Starter Kits.

The figure below shows the pin assignment of the EXP header. Because of limitations in the number of available GPIO pins, some of

the EXP header pins are shared with kit features.

1516

20 19

VMCU

SPI_MOSI / PC6

SPI_MISO / PC7

SPI_SCK / PC8

SPI_CS / PC9

UART_TX / PA0

UART_RX / PA1

I2C_SDA / PC10

3V3

GND

PA2 / GPIO

PA3 / GPIO

PF4 / GPIO

PF5 / GPIO

PF3 / GPIO

PC11 / I2C_SCL

BOARD_ID_SDA

BOARD_ID_SCL

Reserved (Board Identification)

BGM13P I/O Pin

Figure 3.3. EXP Header

UG338: BGM13P22 Blue Gecko Module Radio Board User's Guide

Connectors

silabs.com | Building a more connected world. Rev. 1.1 | 9

3.4.1 EXP Header Pinout

The pin-routing on the BGM13P 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.

Table 3.1. EXP Header Pinout

Pin Connection EXP Header Function Shared Feature Peripheral Mapping

20 3V3 Board controller supply

18 5V Board USB voltage

16 PC10 I2C_SDA SENSOR_I2C_SDA I2C0_SDA #15

14 PA1 UART_RX VCOM_RX USART0_RX #0

12 PA0 UART_TX VCOM_TX USART0_TX #0

10 PC9 SPI_CS USART1_CS #11

8 PC8 SPI_SCLK FLASH_SCLK, DISP_SCLK USART1_CLK #11

6 PC7 SPI_MISO FLASH_MISO USART1_RX #11

4 PC6 SPI_MOSI FLASH_MOSI, DISP_SI USART1_TX #11

2 VMCU BGM13P voltage domain, included in AEM measurements.

19 BOARD_ID_SDA Connected to the board controller for identification of add-on boards.

17 BOARD_ID_SCL Connected to the board controller for identification of add-on boards.

15 PC11 I2C_SCL SENSOR_I2C_SCL I2C0_SCL #15

13 PF3 GPIO DBG_TDI

11 NC

9 PF5 GPIO

7 PF4 GPIO

5 PA3 GPIO VCOM_RTS

3 PA2 GPIO VCOM_CTS

1 GND Ground

Note: Pin PF3 is used for DBG_TDI in JTAG mode only. When Serial Wire Debugging is used, PF3 can be used for other purposes.

UG338: BGM13P22 Blue Gecko Module Radio Board User's Guide

Connectors

silabs.com | Building a more connected world. Rev. 1.1 | 10

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