Silicon Laboratories BGM220SC22 User Manual
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Silicon Laboratories BGM220SC22 User Manual

Wireless gecko module starter kit
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UG458: BGM220SC22 Wireless Gecko
Module Starter Kit User's Guide
A Wireless Starter Kit with the BRD4312A Radio Board is an ex-
cellent starting point to get familiar with the BGM220SC22 Wire-
less Gecko SiP Module. It also provides the necessary tools for
developing a Silicon Labs wireless application.
BRD4312A contains the BGM220SC22 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 BGM220SC22's many
capabilities.
This document describes how to use the BRD4312A Radio Board together with a Wire-
less Starter Kit Mainboard.
silabs.com | Building a more connected world.
BRD4312A RADIO BOARD FEATURES
• BGM220SC22 Wireless Gecko SiP
Module with 512 kB Flash, 32 kB RAM.
Fully integrated chip antenna, RF
matching network, RF crystal, and
decoupling capacitors
(BGM220SC22HNA2).
• 32.768 kHz crystal for LFXO.
• 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
ORDERING INFORMATION
• SLWRB4312A
Rev. 1.0

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Summary of Contents for Silicon Laboratories BGM220SC22

  • Page 1 Silicon Labs wireless application. Module with 512 kB Flash, 32 kB RAM. Fully integrated chip antenna, RF matching network, RF crystal, and BRD4312A contains the BGM220SC22 Module, and it is a plug-in board for the Wireless decoupling capacitors Starter Kit Mainboard. (BGM220SC22HNA2).

  • Page 2: Table Of Contents

    4.2 Board Controller Power ......15 4.3 BGM220SC22 Reset ......15 5.
  • Page 3 6.2.3 Limitations ......24 6.2.4 Troubleshooting ......25 7.

  • Page 4: Introduction

    1. Introduction The BGM220SC22 Wireless Gecko Module is featured on a radio board that plugs directly into a Wireless Starter Kit (WSTK) Main- board. The mainboard features several tools for easy evaluation and development of wireless applications. An on-board J-Link debug- ger enables programming and debugging on the target device over USB or Ethernet.

  • Page 5: Hardware Overview

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Hardware Overview 2. Hardware Overview 2.1 Hardware Layout The layout of the BGM220SC22 Wireless Gecko 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

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Hardware Overview 2.2 Block Diagram An overview of the BGM220SC22 Wireless Gecko Module Wireless Starter Kit is shown in the figure below. Wireless STK Mainboard Board USB Mini-B Controller RJ-45 Ethernet...

  • Page 7: Connectors

    UG458: BGM220SC22 Wireless Gecko Module 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 BGM220SC22 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 BGM220SC22 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 BGM220SC22 Wireless Gecko's features.

  • Page 10: Exp Header Pinout

    3.4.1 EXP Header Pinout The pin-routing on the BGM220SC22 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.

  • 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 BGM220SC22 on the radio board.

  • Page 12: Simplicity Connector

    UG458: BGM220SC22 Wireless Gecko Module 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

    UG458: BGM220SC22 Wireless Gecko Module 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

    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 BGM220SC22 when the power selection switch is in the AEM posi- tion.

  • 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 BGM220SC22 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

    BUTTON0 and LED0 share the connection to GPIO pin PB00, and BUTTON1 and LED1 are both connected to PB01. To use the push buttons as inputs to the BGM220SC22, each button's GPIO pin must be configured as an input. Configure the pins as outputs to control the LEDs.

  • Page 17: Memory Lcd-Tft Display

    • DISP_ENABLE = HIGH: The user application (BGM220SC22) has control of the display Power to the display is sourced from the target application power domain when the BGM220SC22 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: Serial Flash

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Peripherals 5.3 Serial Flash The BRD4312A Radio Board is equipped with an 8 Mbit Macronix MX25R SPI flash that is connected directly to the BGM220SC22. The figure below shows how the serial flash is connected to the BGM220SC22. VMCU...

  • Page 19: Si7021 Relative Humidity And Temperature Sensor

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Peripherals 5.4 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 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 BGM220SC22 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

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Peripherals 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: •...

  • Page 22: Hardware Handshake

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Peripherals 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.

  • Page 23: Board Controller

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Board Controller 6. 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 24: Command Examples

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Board Controller 6.1.3 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 25: Troubleshooting

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Board Controller 6.2.4 Troubleshooting Problem Solution No data received after ending a After certain debugger operations the host computer manually disables SWO on the target in order debug session. to conserve power. This might cause SWO data to not appear if the target application initialized SWO before the debugger has disconnected.

  • 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 BGM220SC22. There are multiple features in the profiler software that allow for easy analysis, such as markers and statistics on selected regions of the current graph or aggregate energy usage by different parts of the application.

  • Page 27: Aem Accuracy And Performance

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Advanced Energy Monitor 7.3 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.

  • Page 28: On-Board Debugger

    8. On-Board Debugger The Wireless STK Mainboard contains an integrated debugger, which can be used to download code and debug the BGM220SC22. 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

    To program external devices, use the debug connector to connect to a target board and set the debug mode to [Out]. The same con- nector can also be used to connect an external debugger to the BGM220SC22 Module on the kit by setting debug mode to [In].

  • Page 30: Debugging During Battery Operation

    On-Board Debugger 8.3 Debugging During Battery Operation When the BGM220SC22 is battery-powered 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, make direct connections to the GPIO used for debugging.

  • Page 31: Kit Configuration And Upgrades

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Kit Configuration and Upgrades 9. 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

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Schematics, Assembly Drawings, and BOM 10. 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. They are also available from the kit page on the Silicon Labs website: http://www.silabs.com/...

  • Page 33: Kit Revision History

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Kit Revision History 11. Kit Revision History The kit revision can be found printed on the kit packaging label, as outlined in the figure below. BGM220SC22 Wirless Gecko Module Radio Board...

  • Page 34: Document Revision History

    UG458: BGM220SC22 Wireless Gecko Module Starter Kit User's Guide Document Revision History 12. Document Revision History Revision 1.0 August, 2020 • Initial document release. 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®, Gecko OS, Gecko OS Studio, ISOmodem®, Precision32®, ProSLIC®, Simplicity Studio®, SiPHY®, Telegesis, the Telegesis Logo®, USBXpress®, Zentri, the Zentri logo and...

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