421: Paint the Iceberg Yellow
Embedded21 Jul 2022

421: Paint the Iceberg Yellow

Chris Hobbs talks with Elecia about safety critical systems. Safety-critical systems keep humans alive. Writing software for these embedded systems carries a heavy responsibility. Engineers need to understand how to make code fail safely and how to reduce risks through good design and careful development.

The book discussed was Embedded Software Development for Safety-Critical Systems by Chris Hobbs.

This discussion was originally for Classpert (where Elecia is teaching her Making Embedded Systems course) and the video is on Classpert's YouTube if you want to see faces.

There were many terms with letters and numbers, here is a guide:

  • IEC 61508: Functional Safety of Electrical/Electronic/Programmable Electronic Safety-related Systems; relates to industrial systems and forms the foundation for many other standards

  • ISO 26262: Road vehicles - Functional Safety; extends and specializes IEC 61508 for systems within cards

  • IEC 62304 specifies life cycle requirements for the development of medical software and software within medical devices. It has been adopted as national standards and therefore can be used as a benchmark to comply with regulatory requirements.

  • MISRA C: a set of software development guidelines for the C programming language

  • DO178-C and DO178-B: Software Considerations in Airborne Systems and Equipment Certification are the primary documents by which the certification authorities such as FAA, EASA and Transport Canada approve all commercial software-based aerospace systems

  • ISO/IEC 29119: Software and systems engineering -- Software testing

  • ISO 14971:2019 Medical devices — Application of risk management to medical devices

  • IEC 62304:2006 Medical device software — Software life cycle processes

Transcript

Episoder(567)

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464: Please Make This Monster Look Scary

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16 Nov 202359min

463: Layers of Band-Aids

463: Layers of Band-Aids

Kevin Lannen is an embedded systems engineer making powered wheelchairs safer. This sounded interesting to us. Kevin works at LUCI Mobility (luci.com). Check out their tear jerker introduction video a...

2 Nov 202356min

462: Spontaneously High Performing

462: Spontaneously High Performing

Marian Petre spoke to us about her research on how to make software developers better at developing software. Marian is an Emeritus Professor of the School of Computing & Communications at the Open Un...

19 Okt 20231h 15min

461: Am I the Cow in This Scenario?

461: Am I the Cow in This Scenario?

Chris and Elecia discuss the pros and cons of completing one project or starting a dozen. Elecia's 2nd edition of Making Embedded Systems is coming out in March. (Preview is on O'Reilly's Learning S...

5 Okt 202358min

460: I Don't Care What Your Math Says

460: I Don't Care What Your Math Says

Author, engineer, manager, and professor, Dr. Greg Wilson joined Elecia to talk about teaching, science in computer science, ethics, and policy. The request for curriculum that started the conversatio...

28 Sep 20231h 19min

459: Ideas Have to Come From Somewhere

459: Ideas Have to Come From Somewhere

Professor AnnMarie Thomas spoke with us about playful learning through joy, whimsy, surprise, and meeting new people. We also spoke with AnnMarie about how adults can foster an environment that enco...

14 Sep 20231h 17min

458: Fiddling, DIY, and Cursing

458: Fiddling, DIY, and Cursing

Trond Snekvik spoke with us about developing VSCode extensions and Bluetooth meshes. Trond is a Staff Software Engineer at Nordic Semiconductor. Nordic's Visual Studio Code Extensions include device ...

31 Aug 20231h 11min

457: Rubber Duck Phase Cancellation

457: Rubber Duck Phase Cancellation

Chris and Elecia chat about their ongoing efforts to create and learn. Then they answer some listener questions. Duck quacks do echo but the echoes seem to align in phase so that there is no interrup...

17 Aug 20231h 12min

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