421: Paint the Iceberg Yellow
Embedded21 Heinä 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

Jaksot(567)

400: A Really Long Time

400: A Really Long Time

Christopher and Elecia celebrate their 400th episode by discussing what has (and hasn't) changed in embedded systems over the last 9 years

28 Tammi 20221h 5min

399: Hey, What's Going On?

399: Hey, What's Going On?

Jen Costillo joined us to talk about voice acting, reverse engineering, podcasting, and dance. Jen's podcast is the Unnamed Reverse Engineering Podcast, found in all your usual podcast places. Jen and...

21 Tammi 20221h 11min

398: Clocks Get Into Everything

398: Clocks Get Into Everything

Tom Anderson explains radio frequency electronics (RF). Elecia and Christopher try to keep up. We also took a detour into bass guitar electronics. One confusing jargon part is that radio power (in dBm...

14 Tammi 20221h 10min

290: Rule of Thumbs (Repeat)

290: Rule of Thumbs (Repeat)

We spoke with Phillip Johnston (@mbeddedartistry) of Embedded Artistry about consulting, writing, and learning. In the Embedded Artistry welcome page, there is a list of Phillip's favorite articles as...

7 Tammi 20221h 13min

397: Owl

397: Owl

Chris and Elecia ring in the new year with a discussion of projects, hobbies, origami, DMA, music, and the new-and-improved Embedded.fm newsletter... Pepto Bismol can be converted to metal bismuth (Yo...

31 Joulu 20211h 1min

293: Skateboard Tricks (Repeat)

293: Skateboard Tricks (Repeat)

Limor Fried of Adafruit spoke with us about engineering, education, and business. Some new boards we talked about include the PyGamer and PyBadge (which also has a lower cost version). TinyUSB, an op...

23 Joulu 202143min

396: Untangle the Mess

396: Untangle the Mess

Uri Shaked shows us Wokwi, his board and processor simulator. We checked out Arduino code in GDB and then looked at his simulator for the Cortex-M0 Raspberry Pi Pico. First, you should totally look ...

17 Joulu 20211h 10min

395: I Can No Longer Play Ping Pong

395: I Can No Longer Play Ping Pong

Tyler Hoffman joined us to talk about developing developer tools and how to drag your organization out of the stone age. You can use GDB and Python together? Yes, yes you can. And it will change your...

10 Joulu 20211h 17min

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