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Technical Overview 11 October 2016 Problem and Context

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Technical Overview 11 October 2016 Problem and Context Technical Overview 11 October 2016 Problem and Context First release of a successful connected product… …. now make that repeatable please. An Open Source OS for MCUs • Open source networking stacks: Bluetooth Host and Controller • Pre-empGve, ckless RTOS with power management Security • Secure bootloader and Image Upgrade Networking Stats & Console & Config & • Flash FS and Access Mechanisms Logging Shell Upgrade Drivers Power • Build & Package Management OS HAL • Management Interfaces Secure Bootloader & FFS A Community Driven OS Why Apache So<ware Founda?on? Cloud Providers IP Providers • Liberal, BSD-style license • Strong Licensing and IP policies • Meritocracy • Free to contribute, contributors control project direcGon. • History of working with large organizaons: IBM, Pivotal/ EMC, MicrosoY. • Many years experience managing large, complex projects (e.g., Apache, Hadoop, MCU Vendors End-Users Subversion) Community driven open source best way to maintain healthy ecosystem RTOS • Tickless operaon: low power hooks • Driver Interface • Pre-empGve, mulGtasking RTOS • Strict priority-based scheduling • Up to 253 different priority levels • Unified buffer management • Resource uGlizaon tracking and watchdog • High-resoluGon Gmers • Built-in tasks: • Idle RTOS - Event Driven Model • Event Queues provide a mechanism for “mostly-sleeping” asynchronous tasks • Wake-up on: • Message from another Task • Timer • I/O state change • Incoming packet • Watchdog • Perform operaons: • Send an alert • Respond to a request • Schedule a wakeup • Go back to sleep Apache Mynewt ConnecGvity Layer (RunGme’s View) Management App App OIC 1.1 CoAP, MQTT, HTTP GATT TLS or DTLS L2CAP TCP UDP HCI IPv4 IPv6 + Thread IPv6 BLE 4.2 Wi-Fi Bluetooth 5 LPWA 3GPP 1.0 – First beta end of October! Standards-based IoT communicaon Highlights: Apache Mynewt Networking • Nordic nRF51 and nRF52 support • Simultaneous Central and Peripheral modes • Supports up to 32 connecGons Bluetooth • Combined (host + controller), host- 4.2 only and controller-only mode • Compable with BlueZ • 40% less code versus licensed binaries in peripheral-only mode • Abstracted interface to Wi-Fi supplicants, and socket layer Wi-Fi • LWIP integrated to provide nave-IP support. • Support for WINC1500...more soon! Highlights: Challenges Managing Connected Products • Well-defined drivers and HAL interfaces Cross-plaorm • Build and package management system Support opGmized to understand BSP and link opons • Build tool creates signed images SoYware • Image download over Serial, BLE and Wi-Fi Upgrade • Bootloader verifies SHA-256/RSA/ECC-DSA signature • Consistent logging and stasGcs infrastructure • Core dumps Debugging • Kernel-level support: sanity, stack guards, memory tracking • Hard sleep and wakeup support (low RAM Power states) Mgmt • Tickless ‘idle’ and driver suspend • Networking stack sleep management Build, Package, and Project Management: newt tool • Composable System • Install and Upgrade • Open-source project collaboraon • Unified method for #includes • Maintaining private code trees and #defines • Enforced source code layout • Dependencies and APIs • Build • System configuraon (a la • Configuraon Device Tree) • MulGple targets • Toolchains • Source code layout • Target management rd • 3 party SDKs • SDK compilaon rules • Go Small or Go BIG • Package Management • VCS Versioning • Versioning and stability • Versioning Scheme (major, minor, rev) • Tracking branches Build and Package Management: newt tool (connued) • ArGfacts • • Debugger maintenance bin/ directory, with object files • MulGple targets stored simultaneously • Generaon of flash images, • upgradable images Compiler definiGons, map files • IntrospecGon • Size • Display dependencies • Packages • Search for funcGonality • Versions • Versions installed – tracking branches • Enforced Hierarchy • HW: MCU, BSP • BSP + App = BUILD • APP • BSP -> MCU definiGon • System DefiniGon • Split images for upgrade • Linker secGons defined by system • RAM locaons • Tie-in with flash layout • Flash Highlight: Apache Mynewt Security • Unique device idenGficaon Provisioning • CerGficate Management • Prevent counterfeiGng • Signed firmware images (newt tool) Upgrade • Secure bootloader • Leverage either BLE or DTLS security Communicaons • RBAC for commands based upon idenGty • Encrypted flash storage Data and Tamper • TPM/Smart Card aware • Support hardware key access Designed for security from the ground-up Hardware Plaorm Support • Suitable for single-chip / host BLE designs Nordic Semiconductor • Controller-only operaon with host processor nRF51/52 • Cost-effecGve nRF51, powerful nRF52 • Host processor, popular for BLE + Wi-Fi • ST Micro Offload processor for DSP processing STM32F/L34 • Extensive, quality peripheral support • L* series provides reduced power consumpGon • Extensive low power modes and operaon Atmel • Rich set of peripherals SAMD/L21 • Community-supported: Arduino Zero series More Coming Soon! Cross plaorm support provides flexibility and price leverage What’s Next? • More boards(!) and processors(!) • PIC32MZ (MIPS - underway), NXP FRDM-K64, NXP KW41Z, STM32 L4 • Wireless • Bluetooth 5 and Bluetooth Mesh • LPWA • Improved Wi-Fi • Wired: Ethernet • Sensor APIs and Sensor Management • You Decide! • More informaon: hyp://mynewt.apache.org/ • Join the development, subscribe to dev@ list. • Contributors welcome! THANK YOU .
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