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Top 10 Bug-Killing Coding Standard Rules

 

There are many sources of bugs in software programs. Some are created by the original programmer. Others by misunderstandings by those who later maintain, extend, and/or reuse/port the original code. Both types of bugs can be kept out by following simple coding standard rules. To increase security and keep bugs out of medical devices and other safety-critical embedded systems, add these 10 bug-killing rules to your embedded C coding standard.

Killer Apps: Embedded Software's Greatest Hit Jobs

Between 1985 and 1987, there were at least 6 distinct accidents where the Therac-25 radiation therapy machine delivered up to 100 times the prescribed radiation dose, resulting in injury and death. These high-profile accidents demonstrated that embedded software can be dangerous, even lethal. In the decades since, and despite increasing regulation, safety-critical system failures have continued to kill people.

As embedded software's size and complexity continue to rapidly progress, user safety increasingly relies upon safe and reliable firmware implementations. Nowhere is this more evident than in the automotive industry, where self-driving vehicles are a much-hyped and potentially invaluable part of our future.

Barr Group co-founder and CTO Michael Barr presents an engaging discussion of the past, present, and future of embedded software safety. 

How to Minimize Interrupt Service Routine (ISR) Overhead

 Printable PDF

With all the automation available today, it's easy for programmers to overlook costly overhead introduced into machine code by the compiler. Interrupt handlers are one key area worthy of a closer inspection.

Usability Standards for Medical Devices

 Printable PDF

Examining the structure of the ANSI and ISO usability standards is the first step to developing medical devices that protect users from accidents.

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