Silicon Laboratories BRD4204D Manuale utente

UG506: xG23B 868-915 MHz 14 dBm Radio

Board User's Guide

A Wireless Starter Kit with the BRD4204D Radio Board is an ex-

cellent starting point to get familiar with the EFR32™ Wireless

Gecko Wireless System-on-Chip, and it provides all necessary

tools for developing a Silicon Labs wireless application.

BRD4204D is a plug-in board for the Wireless Starter Kit Mainboard. It is a complete ref-

erence design for the EFR32ZG23 Wireless SoC, with matching networks for 14 dBm

output power, and an SMA connector for the 868-915 MHz band.

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 debug-

ging the attached radio board as well as external hardware. The Mainboard also contains

sensors and peripherals for easy demonstration of some of the EFR32's many capabili-

ties.

This document describes how to use the BRD4204D Radio Board together with a Wire-

less Starter Kit Mainboard.

BRD4204D RADIO BOARD FEATURES

• EFR32ZG23 Wireless Gecko Wireless

SoC with 512 kB Flash, and 64 kB RAM

(EFR32ZG23B010F512IM48)

• Dual band integrated radio transceiver

• 14 dBm output power

• Inverted-F PCB antenna (2.4 GHz)

• SMA antenna connector (868-915 MHz)

• 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 Wireless SoC I/O

• CR2032 coin cell battery support

SOFTWARE SUPPORT

• Simplicity Studio™

•Energy Profiler

•Network Analyzer

ORDERING INFORMATION

• SLWRB4204DA

silabs.com | Building a more connected world. Rev. 1.0

Table of Contents

1. Introduction ................................

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 Expansion Header Pin-out ........................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 ...........................14

4.3 EFR32 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

6.2.1 Target to Host .............................24

6.2.2 Host to Target .............................24

silabs.com | Building a more connected world. Rev. 1.0 | 2

6.2.3 Limitations ..............................24

6.2.4 Troubleshooting ............................25

7. Advanced Energy Monitor .........................26

7.1 Introduction ...............................26

7.2 Theory of Operation ............................26

7.3 AEM Accuracy and Performance ........................27

7.4 Usage .................................27

8. On-Board Debugger ............................28

8.1 Host Interfaces ..............................28

8.1.1 USB Interface .............................28

8.1.2 Ethernet Interface ...........................28

8.1.3 Serial Number Identification ........................28

8.2 Debug Modes ..............................29

8.3 Debugging During Battery Operation ......................30

9. Kit Configuration and Upgrades .......................31

9.1 Firmware Upgrades ............................31

10. Schematics, Assembly Drawings, and BOM ..................32

11. Kit Revision History ...........................33

11.1 SLWRB4204D Revision history ........................33

12. Document Revision History ........................34

silabs.com | Building a more connected world. Rev. 1.0 | 3

1. Introduction

The EFR32ZG23 Wireless Gecko Wireless SoC is featured on a radio board that plugs directly into a Wireless Starter Kit (Wireless

STK) 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 demonstrate some of the many capabilities of the

EFR32ZG23. The mainboard also has a 20-pin EXP header which can be used for connecting EXP boards to the kit, or for easy con-

nection to I/Os on the target IC on the radio board.

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.

Because 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 to consult the correct document, 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 xG23 868-915 MHz 14 dBm Radio Board Radio Board

(BRD4204D) is combined with a Wireless STK Mainboard. The combination of these two boards is hereby referred to as a Wireless

Starter Kit (Wireless STK).

1.2 Ordering Information

BRD4204D can be obtained as a separate radio board, SLWRB4204D.

Table 1.1. Ordering Information

Part Number Description Contents

SLWRB4204D xG23B 868-915 MHz 14 dBm Radio Board 1x BRD4204D xG23B 868-915 MHz 14 dBm Radio Board

1x 868 MHz dipole antenna (Chilisin BTEA0019130G8R2A01)

1x 915 MHz dipole antenna (Chilisin BTEA0019130G9R2A01)

1.3 Getting Started

Detailed instructions for how to get started can be found on the Silicon Labs web pages: http://www.silabs.com/start-efr32zg.

UG506: xG23B 868-915 MHz 14 dBm Radio Board User's Guide

Introduction

silabs.com | Building a more connected world. Rev. 1.0 | 4

2. Hardware Overview

2.1 Hardware Layout

The layout of the xG23 868-915 MHz 14 dBm Radio Board Wireless Starter Kit is shown in the figure below.

On-board USB and

Ethernet J-Link

Debugger

Radio Board Breakout Pads Plug-in Radio Board

Si7021 Humidity and

Temperature Sensor

EXP-header for

expansion boards

Serial-port, packet trace and Advanced

Energy Monitoring header

ARM Coresight 19-pin

trace/debug header

Ultra-low power 128x128

pixel memory LCD,

buttons and LEDs

Battery or

USB power

USB-serial-port

Packet-trace

Advanced Energy

Monitoring

Figure 2.1. Kit Hardware Layout

UG506: xG23B 868-915 MHz 14 dBm Radio Board User's Guide

Hardware Overview

silabs.com | Building a more connected world. Rev. 1.0 | 5

2.2 Block Diagram

An overview of the xG23 868-915 MHz 14 dBm Radio Board Wireless Starter Kit is shown in the figure below.

Debug

USB Mini-B

Connector

UART

RJ-45 Ethernet

Connector

Packet Trace

AEM

Multiplexer

Debug

UART

ETM Trace

Packet Trace

AEM

Debug

UART

Packet Trace

AEM

Simplicity

Connector

Debug

Connector

Board

Controller

OUT

MCU

EFR32ZG23

Wireless SoC

ETM Trace

128 x 128 pixel

Memory LCD

I2C

Si7021

Temperature

& Humidity

Sensor

SPI 8 Mbit

MX25R

Serial Flash

GPIO

EXP

Header

User Buttons

& LEDs

GPIO

SMA

Connector

SMA

Connector

SMA

Connector

868-915 MHz RF

Figure 2.2. Kit Block Diagram

UG506: xG23B 868-915 MHz 14 dBm Radio Board User's Guide

Hardware Overview

silabs.com | Building a more connected world. Rev. 1.0 | 6

3. Connectors

This chapter gives you an overview of the Wireless STK Mainboard connectivity. The placement of the connectors is shown in the fig-

ure below.

Simplicity

Connector

Debug

Connector

Radio Board

Connectors

EXP Header

GND

VMCU

P11

P10

P13

P12

P15

P14

P17

P16

P19

P18

P21

P20

GND

P23

P22

VRF

GND

P25

P24

P27

P26

P29

P28

P31

P30

P33

P32

P35

P34

P37

P36

P39

P38

P41

P40

P43

P42

P45

P44

GND

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, such 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 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

Note: The Wireless Starter Kit cannot be powered using the Ethernet connector, so to use this interface, the USB connector must be

used to provide power to the board.

UG506: xG23B 868-915 MHz 14 dBm Radio Board User's Guide

Connectors

silabs.com | Building a more connected world. Rev. 1.0 | 7

3.3 Breakout Pads

Most pins of the EFR32 are routed from the radio board to breakout pads at the top and bottom edges of the Wireless STK 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 EFR32

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

EFR32ZG23B010F512IM48.

GND

VMCU

P23 / NC

P21 / PB3 / BTN1

P19 / PB2 / LED0

P17 / PB1 / BTN0

GND

P15 / PB0 / VCOM_ENABLE

P13 / PC7 / EXP16 / I2C_SDA

P11 / PA9 / EXP14 / VCOM_RX

P9 / PA8 / EXP12 / VCOM_TX

P7 / PC0 / EXP10

P5 / PC3 / EXP8 / FLASH_SCLK / DISP_SCLK

P3 / PC2 / EXP6 / FLASH_MISO

P1 / PC1 / EXP4 / FLASH_MOSI / DISP_SI

VRF

GND

VMCU

NC / P22

DBG_TCK_SWCLK / PA1 / P20

DBG_TMS_SWDIO / PA2 / P18

DBG_TMS_SWO / PA3 / P16

GND

DBG_TDI / PA4 / P14

I2C_SCL / EXP15 / PC5 / P12

EXP13 / PA7 / P10

EXP11 / PA6 / P8

EXP9 / PD2 / P6

EXP7 / PA5 / P4

VCOM_RTS / EXP5 / PA0 / P2

VCOM_CTS / EXP3 / PA10 / P0

VRF

BOTTOM EDGE

GNDGND

5V5V

NCNC

P45 / PA7 / TRACED3PA6 / TRACED2 / P44

P43 / PA5 / TRACED1PA3 / TRACED0 / P42

P41 / PA4 / TRACECLKNC / P40

3V33V3

P39 / NCNC / P38

P37 / PC9 / DISP_ENABLE / SENSOR_ENABLENC / P36

P35 / PC4 / FLASH_SCSNC / P34

P33 / PC6 / DISP_EXTCOMINNC / P32

P31 / PC8 / DISP_SCSNC / P30

P29 / NCNC / P28

P27 / NCLED1 / PD3 / P26

P25 / PD4 / PTI_DATAPTI_SYNC / PD5 / P24

GNDGND

TOP EDGE

Figure 3.2. Breakout Pad Pin Mapping

UG506: xG23B 868-915 MHz 14 dBm Radio Board User's Guide

Connectors

silabs.com | Building a more connected world. Rev. 1.0 | 8

3.4 EXP Header

The EXP header is an angled 20-pin expansion header that allows connection of peripherals or plugin boards to the kit. It is located on

the right-hand side of the mainboard, and it contains several I/O pins that can be used with most of the EFR32 Wireless Gecko's fea-

tures. Additionally, the VMCU, 3V3, and 5V power rails are also exported.

The connector follows a standard which ensures that commonly used peripherals, such as a 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 several 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 / PC1

SPI_MISO / PC2

SPI_CLK / PC3

SPI_CS / PC0

UART_TX / PA8

UART_RX / PA9

I2C_SDA / PC7

3V3

GND

PA10 / GPIO

PA0 / GPIO

PA5 / GPIO

PD2 / GPIO

PA6 / GPIO

PA7 / GPIO

PC5 / I2C_SCL

BOARD_ID_SDA

BOARD_ID_SCL

Reserved (Board Identification)

EFR32 I/O Pin

Figure 3.3. EXP Header

UG506: xG23B 868-915 MHz 14 dBm Radio Board User's Guide

Connectors

silabs.com | Building a more connected world. Rev. 1.0 | 9

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. Table 3.1 Expansion Header Pinout on page 10 includes

an overview of the mainboard features that share pins with the Expansion Header.

Table 3.1. Expansion Header Pinout

Pin Connection EXP Header function Shared feature Peripheral mapping

20 3V3 Board controller supply

18 5V Board USB voltage

16 PC7 I2C_SDA SENSOR_I2C_SDA I2C0_SDA

14 PA9 UART_RX VCOM_RX USART0_RX

12 PA8 UART_TX VCOM_TX USART0_TX

10 PC0 SPI_CS - USART1_CS

8 PC3 SPI_SCLK FLASH_SCLK, DISP_SCLK USART1_CLK

6 PC2 SPI_MISO FLASH_MISO USART1_RX

4 PC1 SPI_MOSI FLASH_MOSI, DISP_SI USART1_TX

2 VMCU EFR32 voltage domain, included in AEM measurements.

19 BOARD_ID_SDA Connected to Board Controller for identification of add-on boards.

17 BOARD_ID_SCL Connected to Board Controller for identification of add-on boards.

15 PC5 I2C_SCL SENSOR_I2C_SCL I2C0_SCL

13 PA7 GPIO -

11 PA6 GPIO -

9 PD2 GPIO -

7 PA5 GPIO -

5 PA0 GPIO VCOM_RTS

3 PA10 GPIO VCOM_CTS

1 GND Ground

Note: Pin PF3 is used for DBG_TDI in JTAG mode only. When the Serial Wire Debugging interface (SWD) is used, PF3 can be used

for other purposes.

UG506: xG23B 868-915 MHz 14 dBm Radio Board User's Guide

Connectors

silabs.com | Building a more connected world. Rev. 1.0 | 10

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