- by John Yozallinas, CFSE
- Tuesday, August 18, 2015
- Certification
Certification and the Environmental Test
Functional Safety Assessments (FSA) focus on the relevant functional safety standards that are to be applied to a product in the appropriate industry. These are standards such as IEC 61511 in the process automation industry, or ISO 26262 in the automotive industry. And IEC 61508 is like an umbrella…
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- by Jonathan Moore
- Wednesday, June 12, 2024
- Functional Safety
Have we reached peak C?
The C programming language has undoubtably extremely successful. It consistently ranks highly in the various rankings of most popular programming languages however these studies seem to be measured. C is not a language that is naturally suited to having safety requirements given to it. So, unsuited is it to…
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- by John Yozallinas, CFSE
- Tuesday, November 17, 2015
- Functional Safety
Is your Car Smarter than a Fifth Grader?
While channel surfing the TV this weekend, I happened to stop on an old show called “My Mother The Car.” (Ok, I’m dating myself, but it was filmed in color, as opposed to some other favorite old shows still in black-and-white). The fictional car, a 1928 Porter built for…
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- by Jeff Davis
- Thursday, January 30, 2020
- Functional Safety
ISO 26262 Independence and Related Terms
The “ISO 26262 Road vehicles – Functional safety” specification defines the concepts of “Independence”, “Interference” and other terms which can be a little confusing. This discussion will try to make the concepts clearer.
Independence
Let’s talk about “Independence” and associated concepts first. “Independence” is a concept used within Dependent…
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- by Jonathan Moore
- Thursday, August 29, 2019
- Functional Safety
Let’s Talk About Configuration Management and ISO 26262
Most software developers are familiar with the need for and benefits of change control. Usually change control means one thing to a software developer and that is 'commits' to a source code revision control system. Not only do small and regular commits provide significant advantages to large teams of…
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- by Jonathan Moore
- Wednesday, May 02, 2018
- Functional Safety
MISRA Compliance Static Analysis Results for a Real-world Automotive Project
Splint is offering to present a “special reward” to the “first person to produce a real program that produces no errors with strict checking.” Here’s a summary of a recent real-world automotive project attempting this.
TL;DR: We were not successful, but we learned a few things about MISRA compliance. Feel free to skip to the Observations section to learn more.
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- by Jonathan Moore
- Thursday, March 01, 2018
- Functional Safety
Software Metrics
Both IEC 61508 and ISO 26262 highly recommend a modular approach to software development. One question that comes up regularly asks if there are quantitative targets for determining whether sufficient progress has been achieved by software engineers.
IEC 61508-3 Table B.9 Modular approach
…
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- by exida Webinars
- Wednesday, August 23, 2017
- SoftwareSoftware
Vector Informatik GmbH Vector Microsar SafeRTE
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- by Jonathan Moore
- Thursday, June 23, 2022
- Functional Safety
What ASIL is a software tool?
TL;DR Tools used in developing safety related automotive systems do not receive an ASIL. Some tools and the way they are used may not be suitable for the development of automotive safety electronics and this depends on the ASIL. When a tool vendor mentions an ASIL they might be…
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