The evolution of safety-critical embedded systems has transitioned from federated architectures to Integrated Modular Avionics (IMA) and centralized zonal controllers, necessitating a sophisticated approach to mixed-criticality resource management. This research provides an extensive exploration of the convergence between partitioned software environments and deterministic communication protocols. By synthesizing the principles of time and space partitioning with emerging standards such as IEEE 802.1Qbv Time-Sensitive Networking (TSN), this article establishes a theoretical and practical framework for ensuring high levels of execution time assurance in multi-core environments. We analyze the efficacy of static and semi-partitioned scheduling models, the role of lightweight hypervisors like Bao and Xtratum in maintaining temporal isolation, and the impact of Ethernet-based communication on the real-time performance of aerospace and automotive electronics. The study further investigates fault-tolerant dual-core lockstep architectures, specifically within the context of zonal controllers, to address the rigorous requirements of safety-critical applications. Through a detailed examination of scheduling real-time communication and the challenges of frame replication for reliability, this work identifies critical pathways for optimizing resource efficiency without compromising the integrity of high-criticality tasks.

Integrated Modular Avionics, Mixed-Criticality Systems, Time-Sensitive Networking, Partitioned Hypervisors

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