Silicon Laboratories WGM160P User Manual
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Silicon Laboratories WGM160P User Manual

Silicon Laboratories WGM160P User Manual

Wireless starter kit
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UG351: WGM160P Wi-Fi Module
Wireless Starter Kit User's Guide
A Wireless Starter Kit with the BRD4321A Radio Board is an ex-
cellent starting point to get familiar with the WGM160P Wi-Fi®
Module. It also provides the necessary tools for developing a Sili-
con Labs wireless application.
BRD4321A is a plug-in board for the Wireless Starter Kit Mainboard. It contains the
WGM160P Wi-Fi Module, a USB Micro-B connector and a MicroSD card slot.
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 WGM160P's many capa-
bilities.
This document describes how to use the BRD4321A Radio Board together with a Wire-
less Starter Kit Mainboard.
silabs.com | Building a more connected world.
BRD4321A RADIO BOARD FEATURES
• WGM160P Wi-Fi Module with 2 MB Flash
and 512 kB RAM, with integrated antenna
• USB Micro-B connector offers device
mode support
• MicroSD card slot
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 Wi-Fi Module I/O
• CR2032 coin cell battery support
EXP BOARD FEATURES
• Ethernet PHY and connector
SOFTWARE SUPPORT
• Simplicity Studio
• Gecko OS Studio
ORDERING INFORMATION
• SLWSTK6121A
• SLWRB4321A
Rev. 1.0

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Summary of Contents for Silicon Laboratories WGM160P

  • Page 1 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 • Advanced Energy Monitor sensors and peripherals for easy demonstration of some of the WGM160P's many capa- • Packet Trace Interface bilities.

  • Page 2: Table Of Contents

    4.2 Board Controller Power......15 4.3 WGM160P Reset......15 4.4 Battery Holder .
  • Page 3 7.1.2 Built-in Help ......24 7.1.3 Command Examples ......25 7.2 Virtual UART .

  • Page 4: Introduction

    1. Introduction The WGM160P Wi-Fi Module is featured on a radio board that plugs directly into a Wireless Starter Kit (WSTK) Mainboard. The main- board features several tools for easy evaluation and development of wireless applications. An on-board J-Link debugger enables pro- gramming and debugging on the target device over USB or Ethernet.

  • Page 5: Hardware Overview

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Hardware Overview 2. Hardware Overview 2.1 Hardware Layout The layout of the WGM160P Wi-Fi Module Wireless Starter Kit is shown in the figure below. Radio Board Breakout Pads Plug-in Radio Board On-board USB and...

  • Page 6: Block Diagram

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Hardware Overview 2.2 Block Diagram An overview of the WGM160P Wi-Fi Module Wireless Starter Kit is shown in the figure below. Wireless STK Mainboard Board USB Mini-B Controller RJ-45 Ethernet Connector...

  • Page 7: Connectors

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Connectors 3. Connectors This chapter gives you an overview of the Wireless STK Mainboard connectivity. The placement of the connectors are shown in the figure below. Ethernet Connector J-Link USB Connector...

  • Page 8: Breakout Pads

    3.3 Breakout Pads Most pins of the WGM160P 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 WGM160P map to the pin numbers printed on the breakout pads.

  • Page 9: 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 WGM160P 's fea- tures.

  • Page 10: Exp Header Pinout

    3.4.1 EXP Header Pinout Many pins on the WGM160P are shared between the EXP header and other functions on the Wireless STK Mainboard. The table be- low includes an overview of the mainboard features that share pins with the EXP header.

  • Page 11: 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 WGM160P on the radio board.

  • Page 12: Simplicity Connector

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Connectors 3.6 Simplicity Connector The Simplicity Connector enables the advanced debugging features, such as the AEM, the virtual COM port, and the Packet Trace Interface, to be used towards an external target. The pinout is illustrated in the figure below.

  • Page 13: Debug Adapter

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Connectors 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.

  • Page 14: Power Supply And Reset

    With the switch in the BAT position, the WGM160P Module is powered by 2 x AA sized batteries. This requires that the external battery holder with 2 x AA batteries is connected to the EXP header (after removing the EXP board).

  • Page 15: Board Controller Power

    • An external debugger pulling the #RESET pin low In addition to the reset sources mentioned above, a reset to the WGM160P 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.

  • Page 16: Peripherals

    The starter kit has a set of peripherals that showcase some of the features of the WGM160P. Be aware that most WGM160P 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.

  • Page 17: Memory Lcd-Tft Display

    • DISP_ENABLE = HIGH: The user application (WGM160P) has control of the display Power to the display is sourced from the target application power domain when the WGM160P 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.

  • Page 18: Si7021 Relative Humidity And Temperature Sensor

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Peripherals 5.3 Si7021 Relative Humidity and Temperature Sensor The Si7021 I C relative humidity and temperature sensor is a monolithic CMOS IC integrating humidity and temperature sensor ele- ments, an analog-to-digital converter, signal processing, calibration data, and an I C Interface.

  • Page 19: Usb Micro-B Connector

    WGM160P Figure 5.4. Radio Board USB Connector 5.5 MicroSD Card Slot BRD4321A contains a microSD card slot which is connected to the WGM160P Wi-Fi Module. It enables testing of SW applications uti- lizing a microSD or microSDHC card. CMD_MOSI PB3 (USART2_TX #1)

  • Page 20: Virtual Com Port

    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 WGM160P when it is ready to receive more data VCOM_ENABLE Enables the VCOM interface, allowing data to pass through to the board controller.

  • Page 21: Host Interfaces

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Peripherals 5.6.1 Host Interfaces Data sent to the board controller through the VCOM interface is available in two different ways to the user. At the same time, data can be sent to the target device using these interfaces: •...

  • Page 22: Hardware Handshake

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Peripherals 5.6.3 Hardware Handshake The VCOM peripheral supports basic RTS/CTS flow control. VCOM_CTS (target clear to send) is a signal that is output from the board controller and input to the target device. The board controller de-asserts this pin whenever its input buffer is full and it is unable to accept more data from the target device.

  • Page 23: Rmii Ethernet Exp Board

    PA15 (ETH MDC #3) RMII PHY RJ45 WGM160P Figure 6.1. RMII EXP Board Note: Due to pin limitations on the WGM160P module, the following peripherals are not available while using the RMII Ethernet EXP board: • Display • SD Card • LEDs 6.1 BRD8026A Errata...

  • Page 24: Board Controller

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Board Controller 7. Board Controller The Wireless STK Mainboard contains a dedicated microcontroller for some of the advanced kit features provided. This microcontroller is referred to as the board controller and is not programmable by the user. The board controller acts as an interface between the host PC and the target device on the radio board, as well as handling some housekeeping functions on the board.

  • Page 25: Command Examples

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Board Controller 7.1.3 Command Examples PTI Configuration pti config 0 efruart 1600000 Configures PTI to use the "EFRUART" mode at 1.6 Mb/s. Serial Port Configuration serial config vcom handshake enable Enables hardware handshake on the VCOM UART connection.

  • Page 26: Advanced Energy Monitor

    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 WGM160P. There are multiple features in the profiler software that allows 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.

  • Page 27: Aem Accuracy And Performance

    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 WGM160P in realtime.

  • Page 28: On-Board Debugger

    9. On-Board Debugger The Wireless STK Mainboard contains an integrated debugger, which can be used to download code and debug the WGM160P. In addition to programming a target on a plug-in radio board, the debugger can also be used to program and debug external Silicon Labs EFM32, EFM8, EZR32, and EFR32 devices connected through the debug connector.

  • Page 29: 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 WGM160P Wi-Fi Module on the kit by setting debug mode to [In].

  • Page 30: Debugging During Battery Operation

    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 WGM160P is powered by battery and the J-Link USB is still connected, the on-board debug functionality is available. If the USB power is disconnected, the Debug IN mode will stop working.

  • Page 31: Kit Configuration And Upgrades

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Kit Configuration and Upgrades 10. Kit Configuration and Upgrades The kit configuration dialog in Simplicity Studio allows you to change the J-Link adapter debug mode, upgrade its firmware, and change other configuration settings. To download Simplicity Studio, go to http://www.silabs.com/simplicity.

  • Page 32: Schematics, Assembly Drawings, And Bom

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Schematics, Assembly Drawings, and BOM 11. Schematics, Assembly Drawings, and BOM Schematics, assembly drawings, and bill of materials (BOM) are available through Simplicity Studio when the kit documentation pack- age has been installed.

  • Page 33: Kit Revision History

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Kit Revision History 12. Kit Revision History The kit revision can be found printed on the kit packaging label, as outlined in the figure below. WGM160P Wi-Fi Module Radio Board SLWRB4321A...

  • Page 34: Document Revision History

    UG351: WGM160P Wi-Fi Module Wireless Starter Kit User's Guide Document Revision History 13. Document Revision History Revision 1.0 January 2019 • Initial version. silabs.com | Building a more connected world. Rev. 1.0 | 34...
  • Page 35 Trademark Information Silicon Laboratories Inc.® , Silicon Laboratories®, Silicon Labs®, SiLabs® and the Silicon Labs logo®, Bluegiga®, Bluegiga Logo®, Clockbuilder®, CMEMS®, DSPLL®, EFM®, EFM32®, EFR, Ember®, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZRadio®, EZRadioPRO®, Gecko®, ISOmodem®, Precision32®, ProSLIC®, Simplicity Studio®, SiPHY®, Telegesis, the Telegesis Logo®, USBXpress®...

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