SLWRB4200A - SILICON LABS - Datasheet.Live

UG373: ZGM130S Zen Gecko

Wireless Starter Kit User's Guide

A Wireless Starter Kit with the BRD4200A Radio Board is an ex-

cellent starting point to get familiar with the ZGM130S Zen Gecko

Z-Wave® SiP Module. It also provides the necessary tools for de-

veloping a Silicon Labs wireless application.

BRD4200A is a plug-in board for the Wireless Starter Kit Mainboard. It is a complete ref-

erence design for the ZGM130S SiP Module. The board features an SMA connector for

RF connection, or a PCB antenna that can be selected by moving a 0 Ω resistor.

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 ZGM130S's many capa-

bilities.

This document describes how to use the BRD4200A Radio Board together with a Wire-

less Starter Kit Mainboard.

BRD4200A RADIO BOARD FEATURES

• ZGM130S Zen Gecko SiP Module with

512 kB Flash, 64 kB RAM. Integrated RF

matching network, crystals, and

decoupling capacitors

(ZGM130S037HGN1)

•SMA antenna connector (863-925 MHz)

• Optional PCB antenna

• Switchable SAW filters for EU, HK, and

US frequency bands

WIRELESS STK MAINBOARD FEATURES

• Advanced Energy Monitor

• 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

SOFTWARE SUPPORT

• Simplicity Studio™

• Energy Profiler

•iOS and Android applications

ORDERING INFORMATION

• SLWRB4200A

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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 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 ZGM130S Reset .............................15

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

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

5.2 RGB LED ...............................16

5.3 Memory LCD-TFT Display..........................17

5.4 Si7021 Relative Humidity and Temperature Sensor .................18

5.5 Virtual COM Port .............................19

5.5.1 Host Interfaces ...........................20

5.5.2 Serial Configuration ..........................20

5.5.3 Hardware Handshake .........................21

6. Buttons and LEDs EXP Board ........................ 22

7. Board Controller ............................. 23

7.1 Admin Console .............................23

7.1.1 Connecting .............................23

7.1.2 Built-in Help ............................23

7.1.3 Command Examples .........................24

7.2 Virtual UART ..............................24

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8. Advanced Energy Monitor ......................... 25

8.1 Introduction...............................25

8.2 Theory of Operation ............................25

8.3 AEM Accuracy and Performance .......................26

8.4 Usage ................................26

9. On-Board Debugger ............................ 27

9.1 Host Interfaces .............................27

9.1.1 USB Interface ............................27

9.1.2 Ethernet Interface ..........................27

9.1.3 Serial Number Identification .......................27

9.2 Debug Modes ..............................28

9.3 Debugging During Battery Operation ......................29

10. Kit Configuration and Upgrades ....................... 30

10.1 Firmware Upgrades ...........................30

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

12. Kit Revision History ........................... 32

12.1 SLWSTK6050A Revision History .......................32

12.2 SLWRB4200A Revision History .......................32

13. Document Revision History ........................ 33

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1. Introduction

The ZGM130S Zen Gecko SiP 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 ena-

bles 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 Ether-

net. 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 ra-

dio board.

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

ZGM130S. 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 ZGM130S Radio Board (BRD4200A) 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

BRD4200A can be obtained as a separate radio board, SLWRB4200A.

Table 1.1. Ordering Information

Part Number Description Contents Notes

SLWRB4200A ZGM130S Zen Gecko Module and SAW Fil-

ters Radio Board

1x BRD4200A ZGM130S Zen Gecko Module and SAW Fil-

ters Radio Board

1x RW Badland SMAMFL SKIRT SMA Antenna

SLWSTK6050A ZGM130S Zen Gecko Wireless Starter Kit 2x BRD4200A ZGM130S Zen Gecko Module and SAW Fil-

ters Radio Board

2x BRD4001A Wireless Starter Kit Mainboard

2x BRD8029A Buttons and LEDs EXP Board

2x RW Badland SMAMFL SKIRT SMA Antenna

1x UZB-7 USB Stick

1x UZB-S USB Stick Network Sniffer

*) SLWSTK6050A Rev. B00 and later comes with BRD4202A instead of BRD4200A.

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

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Introduction

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2. Hardware Overview

2.1 Hardware Layout

The layout of the ZGM130S 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

EXP Board

4x Push Buttons

4x LEDs

Toggle switch

Figure 2.1. Kit Hardware Layout

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Hardware Overview

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2.2 Block Diagram

An overview of the ZGM130S 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

ZGM130S

SiP Module

GPIO

EXP

Header

User Buttons

& LEDs

GPIO

EXP Board Peripherals

LEDs

GPIO

Buttons

GPIO

Slide Switch

GPIO

128 x 128 pixel

Memory LCD

I2C

Si7021

Temperature

& Humidity

Sensor

GPIO RGB LED

Figure 2.2. Kit Block Diagram

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Hardware Overview

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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

Note: 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.

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3.3 Breakout Pads

Most pins of the ZGM130S 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

ZGM130S map to the pin numbers printed on the breakout pads. To see the available functions on each, refer to the data sheet for

ZGM130S037HGN1.

GND

VMCU

P23 / NC

P21 / NC

P19 / NC

P17 / NC

GND

P15 / NC

P13 / PC11 / EXP16 / I2C_SDA

P11 / PA1 / EXP14 / VCOM_RX

P9 / PA0 / EXP12 / VCOM_TX

P7 / PC9 / EXP10 / ETM_TD2

P5 / PC8 / EXP8 / ETM_TD1 / DISP_SCLK

P3 / PC7 / EXP6 / ETM_TD0

P1 / PC6 / EXP4 / ETM_TCLK / DISP_SI

VRF

GND

VMCU

PTI_SYNC / PB13 / P22

PTI_DATA / PB12 / P20

PTI_CLK / PB11 / P18

VCOM_ENABLE / PA5 / P16

GND

PA4 / P14

ETM_TD3 / I2C_SCL / EXP15 / PC10 / P12

DBG_TDI / EXP13 / PF3 / P10

LED0 / EXP11 / PF4 / P8

BTN1 / EXP9 / PF7 / P6

BTN0 / EXP7 / PF6/ P4

VCOM_RTS / EXP5 / PA3 / P2

VCOM_CTS / EXP3 / PA2 / P0

VRF

J101

GNDGND

5V5V

NCNC

P45 / PC10 / EXP15 / ETM_TD3 / I2C_SCLETM_TD2 / EXP10 / PC9 / P44

P43 / PC8 / EXP8 / ETM_TD1ETM_TD0 / EXP6 / PC7 / P42

P41 / PC6 / EXP4 / ETM_TCLK / DISP_SINC / P40

3V33V3

P39 / NCNC / P38

P37 / PD15 / DISP_ENABLE / SENSOR_ENABLELEG_B / PD12 / P36

P35 / PD15 / DISP_ENABLE / SENSOR_ENABLELED_G / PD11 / P34

P33 / PD14 / DISP_SCSLED_R / PD10 / P32

P31 / PD13 / DISP_EXTCOMINPD9 / P30

P29 / PB15 / SAW2DBG_TDO_SWO / PF2 / P28

P27 / PB14 / SAW1DBG_TMS_SWDIO / PF1 / P26

P25 / PF5 / LED1DBG_TCK_SWCLK / PF0 / P24

GNDGND

J102

Figure 3.2. Breakout Pad Pin Mapping

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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 ZGM130S Zen

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_CLK / PC8

SPI_CS / PC9

UART_TX / PA0

UART_RX / PA1

I2C_SDA / PC11

3V3

GND

PA2 / GPIO

PA3 / GPIO

PF6 / GPIO

PF7 / GPIO

PF4 / GPIO

PF3 / GPIO

PC10 / I2C_SCL

BOARD_ID_SDA

BOARD_ID_SCL

Reserved (Board Identification)

ZGM130S I/O Pin

Figure 3.3. EXP Header

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3.4.1 EXP Header Pinout

The pin-routing on the ZGM130S is very flexible, so most peripherals can be routed to any pin. However, many pins are shared be-

tween 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 PC11 I2C_SDA SENSOR_I2C_SDA I2C0_SDA #16

14 PA1 UART_RX VCOM_RX USART0_RX #0

12 PA0 UART_TX VCOM_TX USART0_TX #0

10 PC9 SPI_CS ETM_TRACED2 USART1_CS #11

8 PC8 SPI_SCLK FLASH_SCLK, DISP_SCLK,

ETM_TRACED1

USART1_CLK #11

6 PC7 SPI_MISO FLASH_MISO,

ETM_TRACED0

USART1_RX #11

4 PC6 SPI_MOSI FLASH_MOSI, DISP_SI,

ETM_TRACECLK

USART1_TX #11

2 VMCU ZGM130S 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 PC10 I2C_SCL SENSOR_I2C_SCL,

ETM_TRACED3

I2C0_SCL #14

13 PF3 GPIO DBG_TDI

11 PF4 GPIO LED0

9 PF7 GPIO BUTTON1

7 PF6 GPIO BUTTON0

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 the Serial Wire Debugging interface (SWD) is used, PF3 can be used

for other purposes.

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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 ZGM130S on the radio

board. When set to "Debug OUT", this connector allows the kit to be used as a debugger towards an external target. When set to "De-

bug MCU" (default), the connector is isolated from both the on-board debugger and the radio board target device.

Because this connector is electronically switched between the different operating modes, it can only be used when the board controller

is powered (i.e., J-Link USB cable connected). If debug access to the target device is required when the board controller is unpowered,

connect 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. Even though the connector has support for both JTAG and ETM Trace, it does not necessarily mean that the kit or the on-board

target device supports this.

1 2

13 14

15 16

17 18

TMS / SWDIO / C2D

TCK / SWCLK / C2CK

TDO / SWO

TDI / C2Dps

TRACECLK

TRACED0

TRACED1

TRACED2

TRACED3

RESET / C2CKps

GND

VTARGET

Cable Detect

Figure 3.4. Debug Connector

Note: The pinout matches the pinout of an ARM Cortex Debug+ETM connector, but these are not fully compatible because 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 3.2. Debug Connector Pin Descriptions

Pin Number(s) Function Description

1 VTARGET Target reference voltage. Used for shifting logical signal levels between target and

debugger.

2 TMS / SDWIO / C2D JTAG test mode select, Serial Wire data, or C2 data

4 TCK / SWCLK / C2CK JTAG test clock, Serial Wire clock, or C2 clock

6 TDO/SWO JTAG test data out or Serial Wire Output

8 TDI / C2Dps JTAG test data in or C2D "pin sharing" function

10 RESET / C2CKps Target device reset or C2CK "pin sharing" function

12 TRACECLK ETM clock (PC6, ETM_TCLK#3)

14 TRACED0 ETM data 0 (PC7, ETM_TD0#3)

16 TRACED1 ETM data 1 (PC8, ETM_TD1#3)

18 TRACED2 ETM data 2 (PC9, ETM_TD2#3)

20 TRACED3 ETM data 3 (PC10, ETM_TD3#3)

9 Cable detect Connect to ground

11, 13 NC Not connected

3, 5, 15, 17, 19 GND Ground

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3.6 Simplicity Connector

The Simplicity Connector enables the advanced debugging features, such as the AEM, the virtual COM port, and the Packet Trace

Interface, to be used towards an external target. The pinout is illustrated in the figure below.

VMCU 1

33V3

GND

BOARD_ID_SCL

BOARD_ID_SDA

2VCOM_TX

4VCOM_RX

6VCOM_CTS

8VCOM_RTS

10 PTI0_SYNC

12 PTI0_DATA

14 PTI0_CLK

16 PTI1_SYNC

18 PTI1_DATA

20 PTI1_CLK

Figure 3.5. Simplicity Connector

Note: Current drawn from the VMCU voltage pin is included in the AEM measurements, while the 3V3 and 5V voltage pins are not.

When monitoring the current consumption of an external target with the AEM, unplug the radio board from the Wireless STK Mainboard

to avoid adding the radio board current consumption to the measurements.

Table 3.3. Simplicity Connector Pin Descriptions

Pin Number(s) Function Description

1 VMCU 3.3 V power rail, monitored by the AEM

3 3V3 3.3 V power rail

5 5V 5 V power rail

2 VCOM_TX Virtual COM Tx

4 VCOM_RX Virtual COM Rx

6 VCOM_CTS Virtual COM CTS

8 VCOM_RTS Virtual COM RTS

10 PTI0_SYNC Packet Trace 0 Sync

12 PTI0_DATA Packet Trace 0 Data

14 PTI0_CLK Packet Trace 0 Clock

16 PTI1_SYNC Packet Trace 1 Sync

18 PTI1_DATA Packet Trace 1 Data

20 PTI1_CLK Packet Trace 1 Clock

17 BOARD_ID_SCL Board ID SCL

19 BOARD_ID_SDA Board ID SDA

7, 9, 11, 13, 15 GND Ground

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3.7 Debug Adapter

The BRD8010A STK/WSTK Debug Adapter is an adapter board which plugs directly into the debug connector and the Simplicity Con-

nector 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.

For versatility, the debug adapter features three different 10-pin debug connectors:

• Silicon Labs Mini Simplicity Connector

• ARM Cortex 10-pin Debug Connector

• Silicon Labs ISA3 Packet Trace

The ARM Cortex 10-pin Debug Connector follows the standard Cortex pinout defined by ARM and allows the Starter Kit to be used to

debug hardware designs that use this connector.

The ISA3 connector follows the same pinout as the Packet Trace connector found on the Silicon Labs Ember Debug Adapter (ISA3).

This allows the Starter Kit to be used to debug hardware designs that use this connector.

The Mini Simplicity Connector is designed to offer advanced debug features from the Starter Kit on a 10-pin connector:

• Serial Wire Debug (SWD) with SWO

• Packet Trace Interface (PTI)

• Virtual COM port (VCOM)

• AEM monitored voltage rail

Note: Packet Trace is only available on Wireless STK Mainboards. MCU Starter Kits do not support Packet Trace.

VAEM 1

RST

VCOM_TX

PTI_FRAME

SWDIO

2GND

4VCOM_RX

6SWO

8SWCLK

10 PTI_DATA

Figure 3.6. Mini Simplicity Connector

Table 3.4. Mini Simplicity Connector Pin Descriptions

Pin Number Function Description

1 VAEM Target voltage on the debugged application. Supplied and monitored by the AEM

when power selection switch is in the "AEM" position.

2 GND Ground

3 RST Reset

4 VCOM_RX Virtual COM Rx

5 VCOM_TX Virtual COM Tx

6 SWO Serial Wire Output

7 SWDIO Serial Wire Data

8 SWCLK Serial Wire Clock

9 PTI_FRAME Packet Trace Frame Signal

10 PTI_DATA Packet Trace Data Signal

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4. Power Supply and Reset

4.1 Radio Board Power Selection

The ZGM130S on a Wireless Starter Kit can be powered by one of these sources:

• The debug USB cable

• A 3 V coin cell battery

• A USB regulator on the radio board (for devices with USB support only)

The power source for the radio board is selected with the slide switch in the lower left corner of the Wireless STK Mainboard. The figure

below shows how the different power sources can be selected with the slide switch.

VMCU

AEM

USB

BAT

USB Mini-B

Connector

Advanced

Energy

Monitor

3 V Lithium Battery

(CR2032)

BAT

USB

AEM

LDO

ZGM130S

5 V 3.3 V

Figure 4.1. Power Switch

With the switch in the AEM position, a low noise 3.3 V LDO on the mainboard is used to power the radio board. This LDO is again

powered from the debug USB cable. The AEM is now also connected in series, allowing accurate high speed current measurements

and energy debugging/profiling.

With the switch in the USB position, radio boards with USB-support can be powered by a regulator on the radio board itself. BRD4200A

does not contain a USB regulator, and setting the switch in the USB postition will cause the ZGM130S to be unpowered.

Finally, with the switch in the BAT position, a 20 mm coin cell battery in the CR2032 socket can be used to power the device. With the

switch in this position, no current measurements are active. This is the recommended switch position when powering the radio board

with an external power source.

Note: The current sourcing capabilities of a coin cell battery might be too low to supply certain wireless applications.

Note: The AEM can only measure the current consumption of the ZGM130S when the power selection switch is in the AEM position.

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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. This part of the kit resides on a separate power domain, so a different power source can be

selected for the target device while retaining debugging functionality. This power domain is also isolated to prevent current leakage from

the target power domain when power to the board controller is removed.

The board controller power domain is not influenced by the position of the power switch.

The kit has been carefully designed to keep the board controller and the target power domains isolated from each other as one of them

powers down. This ensures that the target ZGM130S device will continue to operate in the USB and BAT modes.

4.3 ZGM130S Reset

The ZGM130S SiP Module can be reset by a few different sources:

• A user pressing the RESET button

• The on-board debugger pulling the #RESET pin low

• An external debugger pulling the #RESET pin low

In addition to the reset sources mentioned above, a reset to the ZGM130S will also be issued during board controller boot-up. This

means that removing power to the board controller (unplugging the J-Link USB cable) will not generate a reset, but plugging the cable

back in will, as the board controller boots up.

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5. Peripherals

The starter kit has a set of peripherals that showcase some of the features of the ZGM130S.

Be aware that most ZGM130S I/O routed to peripherals are also routed to the breakout pads or the EXP header. This must be taken

into consideration when using these.

5.1 Push Buttons and LEDs

The kit has two user push buttons marked PB0 and PB1. They are connected directly to the ZGM130S and are debounced by RC filters

with a time constant of 1 ms. The buttons are connected to pins PF6 and PF7.

The kit also features two yellow LEDs marked LED0 and LED1 that are controlled by GPIO pins on the ZGM130S. The LEDs are con-

nected to pins PF4 and PF5 in an active-high configuration.

PF5 (GPIO)

User Buttons

& LEDs

UIF_LED0

UIF_LED1

UIF_PB0

UIF_PB1

PF6 (GPIO)

PF7 (GPIO)

PF4 (GPIO)

ZGM130S

Figure 5.1. Buttons and LEDs

5.2 RGB LED

The radio board features an RGB LED that is controlled by GPIO pins on the ZGM130S. The LED is connected in an active-low config-

uration.

PD10 (GPIO)

ZGM130S

PD11 (GPIO)

PD12 (GPIO) LED_B

LED_R

LED_G

RGB LED

Figure 5.2. RGB LED

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5.3 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 x 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. Data sent to the display is stored in the pixels on the glass, which means

no continous refreshing is required to maintain a static image.

The display interface consists of an SPI-compatible serial interface and some extra control signals. Pixels are not individually addressa-

ble, instead data is sent to the display one line (128 bits) at a time.

The Memory LCD-TFT display is shared with the kit's board controller, allowing the board controller application to display useful infor-

mation when the user application is not using the display. The user application always controls ownership of the display with the

DISP_ENABLE signal:

• DISP_ENABLE = LOW: The board controller has control of the display

• DISP_ENABLE = HIGH: The user application (ZGM130S) has control of the display

Power to the display is sourced from the target application power domain when the ZGM130S controls the display, and from the board

controller's power domain when the DISP_ENABLE line is low. Data is clocked in on DISP_SI when DISP_CS is high, and the clock is

sent on DISP_SCLK. The maximum supported clock speed is 1.1 MHz.

DISP_EXTCOMIN is the "COM Inversion" line. It must be pulsed periodically to prevent static build-up in the display itself. Refer to the

LS013B7DH03 documentation for more information on driving the display.

PC8 (US1_CLK#11)

PC6 (US1_TX#11)

PD14 (US1_CS#19)

PD13 (GPIO)

PD15 (GPIO)

ZGM130S

0: Board Controller controls display

1: ZGM130S controls display

Figure 5.3. 128x128 Pixel Memory LCD

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5.4 Si7021 Relative Humidity and Temperature Sensor

The Si7021 I2C 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 I2C Interface. The patented use of industry-standard,

low-K polymeric dielectrics for sensing humidity enables the construction of low-power, monolithic CMOS Sensor ICs with low drift and

hysteresis, and excellent long term stability.

The humidity and temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This

ensures that the sensors are fully interchangeable, with no recalibration or software changes required.

The Si7021 is available in a 3x3 mm DFN package and is reflow solderable. It can be used as a hardware- and software-compatible

drop-in upgrade for existing RH/temperature sensors in 3x3 mm DFN-6 packages, featuring precision sensing over a wider range and

lower power consumption. The optional factory-installed cover offers a low profile, convenient means of protecting the sensor during

assembly (e.g., reflow soldering) and throughout the life of the product, excluding liquids (hydrophobic/oleophobic) and particulates.

The Si7021 offers an accurate, low-power, factory-calibrated digital solution ideal for measuring humidity, dew-point, and temperature in

applications ranging from HVAC/R and asset tracking to industrial and consumer platforms.

The I2C bus used for the Si7021 is shared with the EXP header. The temperature sensor is normally isolated from the I2C line. To use

the sensor, SENSOR_ENABLE (PD15) must be set high. When enabled, the sensor's current consumption is included in the AEM

measurements.

SENSOR_ENABLE

Si7021

Temperature

& Humidity

Sensor

0: I2C lines are isolated, sensor is not powered

1: Sensor is powered and connected

PC10 (I2C0_SCL#14)

PC11 (I2C0_SDA#16)

PD15 (GPIO)

SENSOR_I2C_SDA

SENSOR_I2C_SCL

VMCU

VDD

SCL

SDA

ZGM130S

Figure 5.4. Si7021 Relative Humidity and Temperature Sensor

Refer to the Silicon Labs web pages for more information: http://www.silabs.com/humidity-sensors

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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

ZGM130S. This eliminates the need for an external serial port adapter.

VCOM_ENABLE

PA0 (US0_TX#0)

PA1 (US0_RX#0)

PA5 (GPIO)

VCOM_RX

VCOM_TX

Board

Controller

ZGM130S

USB Host

Isolation & Level Shift

PA2 (US0_CTS#30)

PA3 (US0_RTS#30)

VCOM_CTS

VCOM_RTS

ETH

Figure 5.5. Virtual COM Port Interface

The virtual COM port consists of a physical UART between the target device and the board controller, and a logical function in the

board controller that makes the serial port available to the host PC over USB or Ethernet. The UART interface consists of four pins and

an enable signal.

Table 5.1. Virtual COM Port Interface Pins

Signal Description

VCOM_TX Transmit data from the ZGM130S to the board controller

VCOM_RX Receive data from the board controller to the ZGM130S

VCOM_CTS Clear to Send hardware flow control input, asserted by the board controller when it is ready to receive more data

VCOM_RTS Request to Send hardware flow control output, asserted by the ZGM130S when it is ready to receive more data

VCOM_ENABLE Enables the VCOM interface, allowing data to pass through to the board controller.

The parameters of the serial port, such as baud rate or flow control, can be configured using the admin console. The default settings

depend on which radio board is used with the Wireless STK Mainboard.

Note: The VCOM port is only available when the board controller is powered, which requires the J-Link USB cable to be inserted.

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5.5.1 Host Interfaces

Data can be exchanged between the board controller and the target device through the VCOM interface, which is then available to the

user in two different ways:

• Virtual COM port using a standard USB-CDC driver

• TCP/IP by connecting to the Wireless STK on TCP/IP port 4901 with a Telnet client

When connecting via USB, the device should automatically show up as a COM port. The actual device name that is associcated with

the kit depends on the operating system and how many devices are or have been connected previously. The following are examples of

what the device might show up as:

• JLink CDC UART Port (COM5) on Windows hosts

• /dev/cu.usbmodem1411 on macOS

• /dev/ttyACM0 on Linux

Data sent by the target device into the VCOM interface can be read from the COM port, and data written to the port is transmitted to the

target device. Connecting to the Wireless STK on port 4901 gives access to the same data over TCP/IP. Data written into the VCOM

interface by the target device can be read from the socket, and data written into the socket is transmitted to the target device.

Note: Only one of these interfaces can be used at the same time, with the TCP/IP socket taking priority. This means that if a socket is

connected to port 4901, no data can be sent or received on the USB COM port.

5.5.2 Serial Configuration

By default, the VCOM serial port is configured to use 115200 8N1 (115.2 kbit/s, 8 data bits, 1 stop bit), with flow control disabled/ignor-

ed. The configuration can be changed using the admin console:

WSTK> serial vcom config

Usage: serial vcom config [--nostore] [handshake <rts/cts/rtscts/disable/auto>] [speed <9600,921600>]

Using this command, the baud rate can be configured between 9600 and 921600 bit/s, and hardware handshake can be enabled or

disabled on either or both flow control pins.

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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. If hardware handshake is

enabled in the target firmware, its UART peripheral will halt when data is not being consumed by the host. This implements end-to-end

flow control for data moving from the target device to the host.

VCOM_CTS is connected to the RTS pin on the board controller and is enabled by setting handshake to either RTS or RTSCTS using

the "serial vcom config" command.

VCOM_RTS (target request to send) is a signal that is output from the target device and input to the board controller. The board control-

ler will halt transmission of data towards the target if the target device de-asserts this signal. This gives the target firmware a means to

hold off incoming data until it can be processed. Note that de-asserting RTS will not abort the byte currently being transmitted, so the

target firmware must be able to accept at least one more character after RTS is de-asserted.

VCOM_RTS is connected to the CTS pin of the board controller. It is enabled by setting handshake to either CTS or RTSCTS using the

"serial vcom config" command in the admin console. If CTS flow control is disabled, the state of VCOM_RTS will be ignored and data

will be transmitted to the target device anyway.

Table 5.2. Hardware Handshake Configuration

Mode Description

disabled RTS (VCOM_CTS) is not driven by the board controller and CTS (VCOM_RTS) is ignored.

rts RTS (VCOM_CTS) is driven by the board controller to halt target from transmitting when input buffer is full. CTS

(VCOM_RTS) is ignored.

cts RTS (VCOM_CTS) is not driven by the board controller. Data is transmitted to the target device if CTS

(VCOM_RTS) is asserted, and halted when de-asserted.

rtscts RTS (VCOM_CTS) is driven by the board controller to halt target when buffers are full. Data is transmitted to the

target device if CTS (VCOM_RTS) is asserted, and halted when de-asserted.

Note: Enabling CTS flow control without configuring the VCOM_RTS pin can result in no data being transmitted from the host to the

target device.

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6. Buttons and LEDs EXP Board

The Buttons and LEDs EXP Board (BRD8029A) included with the ZGM130S Wireless STK includes the following features:

• 1x on/off slide switch

• 4x push buttons

• 4x LEDs

The connections between the EXP Board and the ZGM130S are shown in the figure below:

PC11

PC10

ZGM130S

PC9

PF4

PF3

PA2

PA3

SLIDE SWITCH (EXP10)

LEDs

Buttons

Slide Switch

BUTTON0 (EXP7)

BUTTON1 (EXP9)

BUTTON2 (EXP15)

BUTTON3 (EXP16)

LED0 (EXP11)

LED1 (EXP13)

LED2 (EXP3)

LED3 (EXP5)

PF7

PF6

Figure 6.1. Buttons and LEDs EXP Board

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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 housekeeping functions on the board.

Some of the kit features actively managed by the board controller are:

• The on-board debugger, which can flash and debug both on-board and external targets

• The Advanced Energy Monitor, which provides real-time energy profiling of the user application

• The Packet Trace Interface, which is used in conjunction with PC software to provide detailed insight into an active radio network

• The Virtual COM Port and Virtual UART interfaces, which provide ways to transfer application data between the host PC and the

target processor

• The admin console, which provides configuration of the various board features

Silicon Labs publishes updates to the board controller firmware in the form of firmware upgrade packages. These updates may enable

new features or fix issues. See Section 10.1 Firmware Upgrades for details on firmware upgrade.

7.1 Admin Console

The admin console is a command line interface to the board controller on the kit. It provides functionality for configuring the kit behavior

and retreiving configuration and operational parameters.

7.1.1 Connecting

The Wireless Starter Kit must be connected to Ethernet using the Ethernet connector in the top left corner of the mainboard for the

admin console to be available. See Section 9.1.2 Ethernet Interface for details on the Ethernet connectivity.

Connect to the admin console by opening a telnet connection to the kit's IP address, port number 4902.

When successfully connected, a WSTK> prompt is displayed.

7.1.2 Built-in Help

The admin console has a built-in help system which is accessed by the help command. The help command will print a list of all top

level commands:

WSTK> help

*************** Root commands ****************

aem AEM commands [ calibrate, current, dump, ... ]

boardid Commands for board ID probe. [ list, probe ]

dbg Debug interface status and control [ info, mode,]

dch Datachannel control and info commands [ info ]

discovery Discovery service commands.

net Network commands. [ dnslookup, geoprobe, ip ]

pti Packet trace interface status and control [ config, disable, dump, ... ]

quit Exit from shell

sys System commands [ nickname, reset, scratch, ... ]

target Target commands. [ button, flashwrite, go, ... ]

time Time Service commands [ client, server ]

user User management functions [ login,]

The help command can be used in conjunction with any top level command to get a list of sub-commands with description. For exam-

ple, pti help will print a list of all available sub-commands of pti:

WSTK> pti help

*************** pti commands ****************

config Configure packet trace

disable Disable packet trace

dump Dump PTI packets to the console as they come

enable Enable packet trace

info Packet trace state information

This means that running pti enable will enable packet trace.

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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.

7.2 Virtual UART

The Virtual UART interface provides a high performance application data interface that does not require any additional I/O pins apart

from the debug interface. It is based on SEGGER's Real Time Transfer (RTT) technology, and it uses the Serial Wire Output (SWO) pin

to get application data from the device and a shared memory interface to send data to the target application.

The Wireless Starter Kit makes the Virtual UART interface available on TCP/IP port 4900.

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8. Advanced Energy Monitor

8.1 Introduction

Any embedded developer seeking to make their 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.

In real-time, the Energy Profiler will graph and log current as a function of time while correlating this to the actual target application code

running on the ZGM130S. There are multiple features in the profiler software that allow for easy analysis, such as markers and statis-

tics on selected regions of the current graph or aggregate energy usage by different parts of the application.

8.2 Theory of Operation

The AEM circuitry on the board is capable of measuring current signals in the range of 0.1 µA to 95 mA, which is a dynamic range of

almost 120 dB. It can do this while maintaining approximately 10 kHz of current signal bandwidth. This is accomplished through a com-

bination of a highly capable current sense amplifier, multiple gain stages, and signal processing within the kit's board controller before

the current sense signal is read by a host computer for display and/or storage.

The current sense amplifier measures the voltage drop over a small series resistor, and the gain stage further amplifies this voltage with

two different gain settings to obtain two current ranges. The transition between these two ranges occurs around 250 µA.

The current signal is combined with the target processor's Program Counter (PC) sampling by utilizing a feature of the ARM CoreSight

debug architecture. The Instrumentation Trace Macrocell (ITM) block can be programmed to sample the MCU's PC at periodic intervals

(50 kHz) and output these over SWO pin ARM devices. When these two data streams are fused and correlated with the running appli-

cation's memory map, an accurate statistical profile can be built that shows the energy profile of the running application in real-time.

At kit power-up or on a power-cycle, an automatic AEM calibration is performed. This calibration compensates for any offset errors in

the current sense amplifiers.

ZGM130S

LDO

Peripherals

AEM

Processing

Figure 8.1. Advanced Energy Monitor

Note: The 3.3 V regulator feedback point is after the 2.35 Ω sense resistor to ensure that the VMCU voltage is kept constant when the

output current changes. Maximum recommended output current is 300 mA.

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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. When measuring currents below 250 µA, the accuracy increases to 1 µA. Even though the absolute accuracy is 1 µA in the sub

250 µA range, the AEM is able to detect changes in the current consumption as small as 100 nA.

The AEM current sampling rate is 10 kHz.

Note: The AEM circuitry only works when the kit is powered and the power switch is in the AEM position.

8.4 Usage

The AEM data is collected by the board controller and can be displayed by the Energy Profiler, available through Simplicity Studio. By

using the Energy Profiler, current consumption and voltage can be measured and linked to the actual code running on the ZGM130S in

realtime.

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9. On-Board Debugger

The Wireless STK Mainboard contains an integrated debugger, which can be used to download code and debug the ZGM130S. 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.

The debugger supports three different debug interfaces for Silicon Labs devices:

• Serial Wire Debug is supported by all EFM32, EFR32, and EZR32 devices

• JTAG is supported by EFR32 and some EFM32 devices

• C2 Debug is supported by EFM8 devices

In order for debugging to work properly, make sure that the selected debug interface is supported by the target device. The debug con-

nector on the board supports all three of these modes.

9.1 Host Interfaces

The Wireless Starter Kit supports connecting to the on-board debugger using either Ethernet or USB.

Many tools support connecting to a debugger using either USB or Ethernet. When connected over USB, the kit is identified by its J-Link

serial number. When connected over Ethernet, the kit is normally identified by its IP address. Some tools also support using the serial

number when connecting over Ethernet; however, this typically requires the computer and the kit to be on the same subnet for the dis-

covery protocol (using UDP broadcast packets) to work.

9.1.1 USB Interface

The USB interface is available whenever the USB Mini-B connector on the left-hand side of the mainboard is connected to a computer.

9.1.2 Ethernet Interface

The Ethernet interface is available when the mainboard Ethernet connector in the top left corner is connected to a network. Normally,

the kit will receive an IP address from a local DHCP server, and the IP address is printed on the LCD display. If your network does not

have a DHCP server, you need to connect to the kit via USB and set the IP address manually using Simplicity Studio, Simplicity

Commander, or J-Link Configurator.

For the Ethernet connectivity to work, the kit must still be powered through the USB Mini-B connector. See Section 4.2 Board Controller

Power for details.

9.1.3 Serial Number Identification

All Silicon Labs kits have a unique J-Link serial number which identifies the kit to PC applications. This number is 9 digits and is normal-

ly on the form 44xxxxxxx.

The J-Link serial number is normally printed at the bottom of the kit LCD display.

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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 ZGM130S SiP Module on the kit by set-

ting debug mode to [In].

Selecting the active debug mode is done in Simplicity Studio.

Debug MCU: In this mode, the on-board debugger is connected to the ZGM130S on the kit.

RADIO BOARD

Board

Controller

USB

Host

Computer

DEBUG HEADER

External

Hardware

Figure 9.1. Debug MCU

Debug OUT: In this mode, the on-board debugger can be used to debug a supported Silicon Labs device mounted on a custom board.

Board

Controller

USB

Host

Computer

DEBUG HEADER

External

Hardware

RADIO BOARD

Figure 9.2. Debug OUT

Debug IN: In this mode, the on-board debugger is disconnected, and an external debugger can be connected to debug the ZGM130S

on the kit.

Board

Controller

USB

Host

Computer

DEBUG HEADER

External Debug Probe

RADIO BOARD

Figure 9.3. Debug IN

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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 ZGM130S 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.

If debug access is required when the target is running off another energy source, such as a battery, and the board controller is powered

down, the user should make direct connections to the GPIO used for debugging. This can be done by connecting to the appropriate

pins of the breakout pads. Some Silicon Labs kits provide a dedicated pin header for this purpose.

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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. To download Simplicity Studio, go to http://www.silabs.com/simplicity.

In the main window of the Simplicity Studio's Launcher perspective, the debug mode and firmware version of the selected J-Link adapt-

er is shown. Click the [Change] link next to any of them to open the kit configuration dialog.

Figure 10.1. Simplicity Studio Kit Information

Figure 10.2. Kit Configuration Dialog

10.1 Firmware Upgrades

Upgrading the kit firmware is done through Simplicity Studio. Simplicity Studio will automatically check for new updates on startup.

You can also use the kit configuration dialog for manual upgrades. Click the [Browse] button in the [Update Adapter] section to select

the correct file ending in .emz. Then, click the [Install Package] button.

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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.

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12. Kit Revision History

The kit revision can be found printed on the kit packaging label, as outlined in the figure below.

SLWRB4200A

ZGM130S Zen Gecko Radio Board

124802042

01-08-18

A00

Figure 12.1. Kit Label

12.1 SLWSTK6050A Revision History

Kit Revision Released Description

B00 18 December 2018 Replaced BRD4200A with BRD4202A.

A00 4 December 2018 Initial release.

12.2 SLWRB4200A Revision History

Kit Revision Released Description

A00 1 August 2018 Initial release.

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13. Document Revision History

Revision 1.1

February 2019

• Updates after BRD4200A was removed from SLWSTK6050A.

• Minor editorial changes.

Revision 1.0

November 2018

• Initial document version.

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Simplicity Studio

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wireless tools, documentation,

software, source code libraries &

more. Available for Windows,

Mac and Linux!

IoT Portfolio

www.silabs.com/IoT

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www.silabs.com/simplicity

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www.silabs.com/quality

Support and Community

community.silabs.com

http://www.silabs.com

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Disclaimer

Silicon Labs intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or

intending to use the Silicon Labs products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical"

parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Labs reserves the right to make changes

without further notice to the product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information.

Without prior notification, Silicon Labs may update product firmware during the manufacturing process for security or reliability reasons. Such changes will not alter the specifications or the

performance of the product. Silicon Labs shall have no liability for the consequences of use of the information supplied in this document. This document does not imply or expressly grant

any license to design or fabricate any integrated circuits. The products are not designed or authorized to be used within any FDA Class III devices, applications for which FDA premarket

approval is required or Life Support Systems without the specific written consent of Silicon Labs. A "Life Support System" is any product or system intended to support or sustain life and/or

health, which, if it fails, can be reasonably expected to result in significant personal injury or death. Silicon Labs products are not designed or authorized for military applications. Silicon

Labs products shall under no circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering

such weapons. Silicon Labs disclaims all express and implied warranties and shall not be responsible or liable for any injuries or damages related to use of a Silicon Labs product in such

unauthorized applications.

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EFR, Ember®, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZRadio®, EZRadioPRO®, Gecko®,

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