Zigbee & Thread Knowledge Base Articles List

The content listed below is grouped into categories to make it easier for you to find what you are looking for. The popular KBAs for each category have been listed as below on this page, more KBAs and relevant documentation can be found under other child pages for each category?if you click on the name of each category.

The category index numbers are as follows:

• Zigbee General
• Zigbee 3.0
• Zigbee Routing
• Zigbee Security
• Zigbee Gateway/Trust Center
• Zigbee Host/NCP
• Zigbee End Device
• Zigbee Bootloader
• Zigbee OTA
• Zigbee Token
• Zigbee DMP
• Zigbee Green Power
• Zigbee Smart Energy
• Zigbee Certification
• LQI/RSSI
• Sleep
• RF
• Plugins
• Peripheral
• Dev Tools
• Hardware
• Hands-on
• EM35x
• Thread
• Chinese

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Zigbee General

Highlighted KBAs:

• EmberZNet FAQ for New Users
• Reference Collection of Ember ZNet and AFV2 Release Notes
• Are messages always received in the order they were sent? Is it normal to receive duplicates of messages?

Zigbee 3.0

Highlighted KBAs:

• What is Zigbee 3.0
• How to form Zigbee 3.0 network with EmberZnet stack
• Migration of Legacy Zigbee Profiles to Zigbee 3.0
• Zigbee 3.0 Device Interoperability with Legacy Zigbee Devices
• Zigbee 3.0 Prevention of Trust Center Rejoins best practices

Zigbee Routing

Highlighted KBAs:

• What logic does the stack use to determine how to route unicast messages?
• Scaling network communication in EmberZNet with Many-To-One Routing (MTOR) and Source Routing
• Why do many-to-one route requests take more than one hop, even though all of my nodes are in close range?
• How do I use commissioning mode to setup a network?

Zigbee Security

Highlighted KBAs:

• Hashed Link Keys
• Various keys used in ZLL Commissioning Plug-in in EmberZNet PRO stack
• Why aren't nodes sometimes not able to join (no TrustCenterJoinHandler callback) in large networks?

Zigbee Gateway/Trust Center

Highlighted KBAs:

• Trust Center Replacement
• Building an SoC Z3 Coordinator
• Setting Up Cygwin for Mesh Development
• Setting Up Raspberry Pi for Development with Silicon Labs EmberZNet Stack
• Guidelines for Large/Dense Networks with EmberZNet PRO
• How to obtain an inventory of all the nodes in a ZigBee network

Zigbee Host/NCP

Highlighted KBAs:

• Linux libraries required for building host applications
• Getting started with EZSP-UART
• What is the difference between EZSP UART and EZSP SPI?
• Build an EZSP-SPI host application on a Raspberry Pi
• GPIOs used for the pre-built EFR32MG NCP images
• Reporting Custom Message from NCP to Host
• Setting Up Cygwin for Mesh Development

Zigbee End Device

Highlighted KBAs:

• How does a ZED choose a parent?
• How does the polling mechanism work?
• How does the stack manage my end device's connection with the network? Will it rejoin automatically on boot-up?
• How long can my end device go without polling its parent? What happens after that timeout?
• End device not talking to former parent that was turned off and rejoined

Zigbee Bootloader

Highlighted KBAs:

• Upgrading the device firmware through UART XMODEM
• How to build the Gecko Bootloader for variant EFR32 chips?
• Why does my SOC or NCP firmware upload sometimes cause the device to be unresponsive?
• Make customized ZigBee bootloader for the EFR32MG1 QFN32 parts

Zigbee OTA

Highlighted KBAs:

• How to setup OTA Server and OTA Client on WSTK+4151 radio boards
• How to Setup Ota Server(with internal flash) on SoC mode
• How to setup the ota server(with external SPI flash) on SoC mode
• How to upgrade(downgrade) the ncp image with host application
• Create OTA file manually

Zigbee Token

Highlighted KBAs:

• Building Firmware Images for Production
• How to use custom application token in EmberZnet?
• How do the Simulated EEPROM libraries handle changes in tokens after firmware update?
• What kinds of token writes does the EmberZNet stack perform?

Zigbee DMP

Highlighted KBAs:

• Avoiding shared resources with Zigbee and Micrium.

Zigbee Green Power

Highlighted KBAs:

• Zigbee Green Power
• Getting Started with Silicon Labs Green Power Device using EFR32MG22
• Adding Green Power Proxy support to an existing Host-NCP

Zigbee Smart Energy

Highlighted KBAs:

• How to add ECC Libraries to EmberZNet
• How to set up a sniffer to capture sub-GHz network with Nodetest?
• How to Create Smart Energy Customized NCP project with Pre-Built NCP images Config

Zigbee Certification

Highlighted KBAs:

• Steps to Zigbee Certification for Wireless Mesh Products

LQI/RSSI

Highlighted KBAs

• LQI in Silicon Labs EM3xx and EFR32 Parts
• Can I convert LQI values from the stack to RSSI values (or vice-versa)?
• How do I obtain LQI and RSSI values from the stack? What do the results mean?

Sleep

Highlighted KBAs:

• Measuring sleep current on EFR32MG1 using the Z3Switch sample app
• Sleep modes supported by the Silicon Labs wireless mesh stacks
• How to enable voltage scaling in EM2 mode for EFR32MG12 and later devices

RF

Highlighted KBAs:

• What are the valid values for txPower?
• My EFR32 is not outputting the power I'm expecting for my zigbee (EmberZNet) application. How do I improve it?
• How can I implement antenna diversity for EFR32MG?
• How does temperature affect radio performance?
• Turning any EFR32 into a Zigbee or Thread Sniffer
• Overview of EFR32 series 1 matching networks for 2.4Ghz frequency band

Peripheral

Highlighted KBAs:

• Why should I enable the PTI peripheral ?
• Setting up Serial Output Using Hardware Configurator
• Improving timing on the EFR32
• Extending the spiflash-class1.c driver for additional flash chips
• Peripheral utilization on EFR32MG by EmberZNet stack

Plugins

Highlighted KBAs:

• How does the Concentrator Plugin work?
• How to set up reporting functionality in EmberZNet stack, and how to use it?
• Packet Handoff plugin how-to guide

Dev Tools

Highlighted KBAs:

• Simplicity Commander
• Tips and Tricks for Simplicity Studio
• How to open a big isd(packet trace) file with Simplicity Studio
• Improving Binary Size When Compiling In Simplicity Studio
• Correcting an Incomplete Device Menu
• ISA3 Utilities
• How can I capture the entire flash contents of my device (including manufacturing and stack token data)?
• What TCP/UDP ports are required for the Ember Debug Adapter to operate with Ember Desktop?

Hardware

Highlighted KBAs:

• Where can I find EFR32 reference designs?
• EFR32 Maximum External Pull-up / down Resistor Values

Hands On

Highlighted KBAs:

• ZigBee 3.0 Tutorial - Light and Switch from Scratch
• How to create custom CLI commands in EmberZNet?

EM35x

Highlighted KBAs:

• Debugging the EM35x devices with IAR
• EM3xx - Minimum Programming Pins
• How are the GPIOs configured in the EM35x EZSP NCP firmware?
• Error: Target not recognized as an Ember device
• Debugging EM3xx programming issues
• Enabling Read Protection or Write Protection for EM35x Chips
• ISA3 connection troubleshooting steps
• Manufacturing & Production Test for EM35x based designs

Thread

Highlighted KBAs:

• Deprecation of SL Thread in favor of OpenThread
• Building a Thread Router Eligible End Device Application Part 1.
• Thread Leader Router

Chinese

Highlighted KBAs:

• 淺談Many-to-One/Source Routing機制
• 基于最小BOM的EFR32濾波
• EM3xx射頻調試