Improving firmware updates for Internet of Things devices – the IETF SUIT Hackathon in Berlin/Germany
IoT devices commonly require security patches and updates to protect against known vulnerabilities. In this blog post Hannes Tschofenig highlights a recently-launched standardization effort in the Internet Engineering Task Force (IETF): the "Software Updates group for Internet of Things (SUIT)" working group. The report shares experiences from a Hackathon in Berlin, where several working group members met to work on code for firmware updates.
About this release
Mbed OS 5.9 includes the release of device statistics APIs, which allow you to gather critical device information. This is a first step toward giving you power to remotely diagnose the health of IoT devices deployed in the field. Mbed OS 5.9 focuses on mainlining and increasing adoption of low power features, such as the microsecond ticker, low power timer, sleep manager and real time clock APIs.
Power consumption is one of the most important design requirements for IoT devices. Meeting the power budget is becoming challenging as the systems today include more sensors, faster responses and more connectivity. With the introduction of, and improvements to, key low power features, such as the microsecond ticker, low power timer, sleep and real time clock APIs, meeting tight power requirements and designing low power systems becomes straightforward.
This release also continues our efforts to add comprehensive documentation for Mbed OS. Our ongoing efforts in this area include adding documentation to our connectivity, RTOS and storage APIs, as well as information about our configuration system.
In addition, this release contains many minor fixes and enhancements and brings support for 135 target development boards. In the release note below, we summarize some of the key updates to Mbed OS that are part of the Mbed OS 5.9.0 release.
This is a guest blog post by Hannes Tschofenig, Senior Principal Engineer at Arm.
OMA SpecWorks: a new beginning
Several organizations are working on technical specifications to improve interoperability and security within Internet of Things (IoT), and Arm contributes to several of them. The end of March merger of the Open Mobile Alliance (OMA) with the IP Smart Object (IPSO) Alliance resulted in the establishment of a new organization - OMA SpecWorks. As a former board member of the IPSO Alliance, I have supported this development, particularly as it will lead to better integration of the smart object development into the IoT device management solution developed by the OMA.
Try the simulator directly in the browser: Open Simulator
While we have worked hard to improve embedded development tooling in Mbed (e.g. via the Online Compiler), the development for microcontrollers is still very similar to how it was in the 90s. Compilation is slow, and flashing is even slower. When fixing a bug, you need to get the device into the exact state as it was in before encountering the bug. This makes for a very slow feedback loop, which hinders productivity and often pulls you out of the zone.
Come join us for our third biweekly Office Hours with an Engineer live stream, where we'll talk with Senthil Ramakrishnan from the Mbed OS core team about crash dump analysis on Mbed OS. We'll detail how to log crashes and how to analyze some of the worst debug scenarios, so you can avoid them in your code.
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