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      • Tech Talks Blog: Zigbee Software Structure

        May Ledesma | 06/162/2020 | 08:00 PM

        In this Tech Talk session, Chris League, Field Applications Engineer for Silicon Labs, talked about the Zigbee software structure and demonstrated some helpful plugins and callbacks needed for developing your SoC design. Click here to watch the complete webinar and register now for future Tech Talks. Here are some key points from Chris’ session.

        The Power of the Zigbee Alliance

        Zigbee is one of the most widely deployed mesh networks in the market today. These primary markets consist of connected home, connected lighting, smart energy, and commercial/industrial IoT. With more than 400 member companies in the world, the Zigbee Alliance has developed more than 2,500 certified devices with more than 300 million products deployed.

        The Zigbee Alliance is both the foundation and the future of IoT. The organization develops open, global standards for IoT devices, help certify products to ensure interoperability, and promote the use of standards globally. Silicon Labs sits on the alliance’s Board of Directors, among other IoT leaders in the market.

        Zigbee Alliance

        Zigbee and the Network Protocol Stack

        The Zigbee PRO stack starts with the PHY layer at IEEE 802.15.4, which defines the radio characteristics and the receiving of the physical packets. The Zigbee Alliance then specifies the Zigbee stack on top of PHY, from the MAC layer up to the ZCL or the clusters (Zigbee’s standardized way of describing “things”) needed for the design. The Zigbee stack organizes the mesh network – from route discovery, device discovery, message relay, security, and the feature set. The Zigbee PRO stack ends with the User Application layer on top where initiating and joining a network happens, as well as the sending and receiving of messages, network management, and device relationship resolution.

        Zigbee devices are members of an intelligent Routing Mesh where protocol packets are not only used to send messages but also to manage the mesh network.

        Zigbee Stack

        The System-on-Chip Architecture

        As a one-chip solution, the System-on-Chip (SoC) architecture is best for applications like sensors or door locks because it features minimal external components, lowest BOM cost, and ease of design.

        Getting Things Done with the AppBuilder in Simplicity Studio

        The Zigbee code structure can be derived from its application framework architecture categorized into the Silicon Labs code and the User code. The Silicon Labs code is basically a library of the EmberZNet stack and the Main function. We control the Main function while developers access and write codes based on callbacks. The User Code also consists of the application code and the configuration files generated by the AppBuilder.

        Zigbee Code Structure

        The AppBuilder resides in Simplicity Studio. It is the developers’ tool for managing profiles and clusters, generating configuration files, putting plugins to work, implementing callbacks, and creating events.

        Get Zigbee Documentation and Support

        Either you want to start with the basics and learn the Fundamentals of Zigbee or advance your knowledge by reading the Zigbee Application Framework Developer’s Guide, there are several ways to get started with boosting your understanding of Zigbee concepts. To get answers for more specific and/or complex questions, and access our Training Resources, Community, Forum, and Knowledge Base Articles, visit our Tech Support page.

      • May 2018 SDK Release - Silicon Labs Release Update Notification

        Tabitha | 08/219/2018 | 11:38 PM

        Hi all,

        I'm pleased to announce the latest SDK that includes improvements and bug fixes for our Bluetooth, Thread, Zigbee, and MCU product families. This release provides the following: 

        • EmberZNet 6.3.0 (Full release here)
          • Zigbee Pro 2017 (R22) compliant stack w/ GPPB and SE1.4/GBCS support
          • Dynamic block request delay support for OTA upgrades
          • Sub-GHz only mode support for SE1.4/GBCS
          • NVM3 G.A integration
          • Gecko Bootloader LZMA decompression support
          • IAR EWARM 7.80.4 and GCC 7.2.1 support
        • Silicon Labs - Thread 2.7.0 (Full release here)
          • Thread with Micrium OS Beta support 
          • DotDot DTLS security support
          • DotDot resource directory and discovery support
          • DotDot conformance testing support
          • IAR EWARM 7.8.4 and GCC 7.2.1 support
          • GRL Test Harness support bug fixes
        • Flex SDK (Full release here)
          • Version 2.2.1.0 GA – enhanced support for QFN68 variants of EFR32xG12
          • Version 2.2.2.0 GA – RAIL and Connect feature enhancements and bug fixes
          • Version 2.2.2.1 GA – minor metadata changes, no application or stack changes
        • Bluetooth SDK (Full release here)
          • +20dBm support and AFH
          • Long advertisement packets & additional RF channels 
          • Bluetooth + RAIL DMP enhancements 
        • MCU (Full release here)
          • Gecko LE-USB support on GG11, to complement existing Micrium USB 
          • Micrium OpenCAN support for GG11/TG11

        Need help? Please contact Silicon Labs Technical Support.

        ~Tabi

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