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Silicon Validation Intern
Write a real answer. It is graded against the question's stored rubric, the mastery movement is computed by the same engine the product uses, and — the part worth watching — the next question is chosen by the real scheduler from what you have already answered. Nothing is saved and no tokens are spent.
You are asked to build a hardware-in-the-loop fixture that exercises an embedded controller's sensor inputs and verifies its actuator outputs. Describe the architecture, and be specific about what the HIL can prove and what it cannot.