CODEWITHSUNDEEP
pythoncocotb
warsal
warsal

Reputation: 11

How to generate clock in COCOTB?

I am trying to verify a flash-based design using Cocotb (a Python-based framework) which I am new to it. I have always used verilog, SystemVerilog in the past. I am trying to generate the clock for a testbench.

I have tried going through the documentation. I see in the cocotb website where they have a clock class. I also see that I can use,something like, cocotb.fork(clock(dut.clk,5000).start()) to generate the clock. 

def directed_test(dut):

    cocotb.fork(Clock(dut.clk, 1000).start())

Is that all I need to do to generate a clock? The class Clock available on the cocotb documentation, should I simply import it and generate the clock by writing a statement as above inside a coroutine ?

Any help is much appreciated.

Learner.

Upvotes: 0

Views: 2207

Answers (1)

cmarqu
cmarqu

Reputation: 503

Exactly, that's all you need. Replace the clk in dut.clk with the name of your clock signal if needed. It's also nice to specify the units option, see https://cocotb.readthedocs.io/en/latest/library_reference.html#cocotb.clock.Clock

Upvotes: 1

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