In addition to adhering to design principles, engineers must follow a set of best practices to ensure the successful development of real-time embedded systems:
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While simple systems might use a "super-loop" architecture (an infinite loop checking for flags), complex systems require a Real-Time Operating System. An RTOS differs from a standard OS in its scheduler. It uses a preemptive, priority-based scheduler that can instantly switch context when a higher-priority event occurs. The engineering practice here focuses on minimizing "interrupt latency"—the time between a hardware signal and the execution of the corresponding software handler.
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Moving beyond functional testing into timing analysis and fault-injection (testing how the system reacts when things go wrong). If you’d like, I can help you:
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