Functional safety is a critical concern for all automotive products, and the most complex and least understood part of it is safety from random faults (faults due to unpredictable natural phenomena rather than design bugs). ISO 26262, "Road vehicles — Functional safety" sets out the requirements for safe designs. In this article, we present a simple, easy step-by-step methodology to comprehend and achieve functional safety from random faults based on Questa® simulation and the fault-injection accelerator from Optima.
The computers are fleeing their cages. Until recently, people interacted with computers in a virtual world of screens and mice. That world had many security risks but relatively few safety risks, mostly