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Circuit Design: Know It All by Bob Zeidman, Tim Williams, Robert Pease, Walt Kester, Ian Hickman, Bonnie Baker, Darren Ashby

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Chapter 30

Design Automation and Testing for FPGAs

Peter Wilson

30.1 Simulation

30.1.1 Test Benches

The overall goal of any hardware design is to ensure that the design meets the requirements of the design specification. In order to measure that this is indeed the case, we need not only to simulate the design representation in a hardware description language (such as VHDL), but also to ensure that whatever tests we undertake are appropriate and demonstrate that the specification has been met.

The way that designers can test their designs in a simulator is by creating a test bench. This is directly analogous to a real experimental test bench in the sense that stimuli are defined and the responses of the circuit measured to ensure that they meet the ...

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