4/15/2023 0 Comments Synopsys synplify premier 2018.3It is also possible for multiple faults to occur at the same time, complicating recovery. Other types of faults such as signal glitches or bit flips are transient and may be easier to correct. These are classified as permanent faults. Some faults can physically damage a chip by breaking connections, changing the values of components or causing a signal to be stuck at one value. For example, a self-driving car that can no longer operate correctly might pull to the shoulder as quickly and safely as possible. Safety-critical design entails detecting faults and either correcting them or taking appropriate measures such as safe system shutdown or reset. Many of these applications have industry safety standards that manufacturers must satisfy. Applications include autonomous vehicles, medical equipment, implanted medical devices, military/aerospace systems, nuclear power plants and industrial controllers. Chips in safety-critical applications must be able to handle a variety of faults from sources such as temperature and power extremes, device aging, radiation, ionization and component failures. Safety requirements go beyond traditional verification, which focuses on design bugs. Functional safety is a major challenge for field programmable gate arrays (FPGAs) and other semiconductor designs.
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