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Cocotb Alternatives
Similar projects and alternatives to cocotb
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PipelineC
PypelineC: A hardware description language (HDL) adding high level synthesis(HLS)-like automatic pipelining as a language construct/compiler feature.
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chiseltest
Discontinued The batteries-included testing and formal verification library for Chisel-based RTL designs.
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better cocotb alternative or higher similarity.
cocotb discussion
cocotb reviews and mentions
Posts with mentions or reviews of cocotb.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-07-04.
- Use cocotb to test and verify chip designs in Python
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Designing a Low Latency 10G Ethernet Core
The use of cocotb and pyuvm for verification
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How is Python used in test automation in embedded systems?
For FPGA/HDL work, there's cocotb
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Introducing CoHDL
At the moment, it is not possible to directly simulate synthesizable contexts. In principle, I could add a simulator to CoHDL. As a Python implementation, it would be orders of magnitude slower than other solutions. Instead, I am using Cocotb to validate the generated VHDL and for the unit tests in the GitHub repository. There is also some very, very experimental support for formal verification, but it will take some time for that to become usable.
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Trying to learn and work with FPGAs
On the topic of simulation, you don't have to restrict yourself to using Verilog or VHDL to write your test benches. For example, Verilator lets you write them in C++, cocotb lets you use Python, and if you use SpinalHDL you will drive the underlying simulator using Scala.
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Help understanding how this makefile works?
I know it might be difficult without much context, but this makefile is called by a top level makefile. very confused if lines 35-74 do anything. They seem to be a mix of real makefile syntax and just straight up comments. what do these lines do?
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COBS protocol decoder progress
Learn more about this here: https://www.cocotb.org/
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AXI-Stream meme
Also consider cocotb, this thread has some compelling arguments. I'd say as a student, learning industry tools isn't necessarily the best thing you could spend your time on. Getting fast at design AND verification, where you can maintain flow state and run better microexperiments means you will understand more, faster.
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cocotb
Have you tried looking at the mixed language example?
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A note from our sponsor - SaaSHub
www.saashub.com | 13 Aug 2026
Stats
Basic cocotb repo stats
29
2,469
9.7
10 days ago
cocotb/cocotb is an open source project licensed under BSD 3-clause "New" or "Revised" License which is an OSI approved license.
The primary programming language of cocotb is Python.