Constrained Random Verification

Constrained random verification

Constrained random verification is a testbench strategy that relies on generating pseudo-random transactions for the device under test (DUT). The goal is to reach functional coverage of a number of predefined events through random interaction with the DUT. Open Source VHDL Verification Methodology (OSVVM) is a free VHDL library which includes a number of convenient…

How to create a self-checking testbench

How to create a self-checking testbench

A self-checking testbench is a VHDL program that verifies the correctness of the device under test (DUT) without relying on an operator to manually inspect the output. The self-checking testbench runs entirely on its own, and prints an “OK” or “Failed” message in the end. Every VHDL module should have an associated self-checking testbench. It’s…

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