Verification
cocotb
A Python-based verification framework that enables writing testbenches in Python rather than HDL.
Detailed Explanation
cocotb (COroutine-based COsimulation TestBench) runs Python coroutines alongside HDL simulation. Python handles stimulus generation, checking, and test flow; HDL simulates the design. This enables leveraging Python's libraries and ecosystem for verification.
Coroutines yield control at signal edges or delays. cocotb handles communication with simulators (VCS, Questa, Verilator, etc.). Python's flexibility simplifies complex test scenarios, randomization, and result analysis.