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(569)

49: Is That an Ardunio in Your Pocket

49: Is That an Ardunio in Your Pocket

Tenaya Hurst (@ArduinoWoman) shares her incredible enthusiasm for teaching Arduino and the San Jose's Tech Museum of Innovation (The Tech). Being a geo-anthrop-actress, Tenaya teaches ch...

30 Apr 20141h 2min

48: Widgets on the Hands of Ants

48: Widgets on the Hands of Ants

Dr. Kevin Shaw, CTO of Sensor Platforms, spoke with Elecia about his career progressing from designing MEMS to building a company that makes sensor fusion algorithms. Wandering from the Internet of Th...

23 Apr 20141h 6min

47: Bridge of Toothpicks

47: Bridge of Toothpicks

Nathan Tuck joined Christopher White (@stoneymonster) and Elecia White to chat about varied topics relating to being an embedded (and graphics) engineer (and manager). Nate works at NVidia on the Tegr...

16 Apr 20141h 32min

46: I'm Painting the Turtle

46: I'm Painting the Turtle

Jennelle Crothers (@jkc137) explained to Elecia what a technology evangelist does. Of course, it wasn't an embedded technology but it was still amusing. Plus, Elecia got to play with a Surface Pro. Ch...

9 Apr 201440min

45: Yanking on a Cat's Tail Is the Only Way to Learn

45: Yanking on a Cat's Tail Is the Only Way to Learn

David Anders (Google+) joined Elecia to chat about open source hardware, what it means, how to do it, and why.  Dave will be speaking at the embedded Linux conference in San Jose, CA on April 30th: 9...

2 Apr 201450min

44: Light Up Strikes Back

44: Light Up Strikes Back

Josh Chan and Tarun Pondicherry, founders of Light Up (@Lightup or on Facebook), returned to the show. In episode 7, they were midway through their kickstarter, planning to make a product to teach ele...

26 Mar 201448min

43: A Lot of High-Falutin' Math

43: A Lot of High-Falutin' Math

Tony Rios from MEMSIC spoke with Elecia about inertial systems and tuning algorithms used in sensor fusion (i.e. Kalman). The IMU380 will appear soon, creating a whole line of relatively inexpensive q...

19 Mar 20141h 1min

42: Blocks of Gold with LCD Displays

42: Blocks of Gold with LCD Displays

Christopher White (@stoneymonster) and Elecia talk about the failed startups (and projects) they've been through, focusing on identifying how to discern the end is nigh.  A nice collection of startups...

12 Mar 20141h 9min

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