Concept for a SIL3 middleware encapsulating safety-related aspects of applications for an 8051-based SIL3 multi-core system-on-chip

In this paper, a concept for a SIL3 middleware implementing safety-related aspects is proposed. The middleware is intended to be used by applications that are written for a recently developed safety system-on-chip. Each module implements a low-level driver. Each driver represents a specific functionality of the system-on-chip. Once being certified conforming to IEC 61508, the middleware would enable writing safety-related applications aimed at SIL3 almost as straightforward as non-safety-related applications. A multi-core SIL3 architecture for safety-related applications is explained. In addition, possible issues that can arise during the software development are identified. Furthermore, conformance arguments on meeting SIL3 are depicted.