Cocotb Dev Notes #
The Cocotb Dev Notes are a collection of articles investigating how the internals of cocotb work. These articles assume a basic understanding of linux, python, HDL simulators, Verilog, and C++. However, the dev notes return to fundamentals of various topics at times to fully grasp the functionality of cocotb.
- The notes are geared towards a *nix environment (sorry windows users).
- The notes are a learning exercise for the author. Sometimes sections will end with questions, a hand wavy understanding, a TODO, etc… They are a work in progress.
The 30,000 Foot View #
These notes are focused on understanding three things:
- what happens when you start cocotb
- how cocotb talks to the simulator
- how the simulator talks to cocotb
Cocotb Distilled to 3 Points #
When you spin up cocotb 3 things happen:
- makefiles compile sources (verilog or hdl) and starts execution of a simulator
- An interface starts up in the simulator creating a connection between cocotb, gpi, interface, and hdl simulator
- cocotb schedules things to happen and advances time in the simulator.
Looking for tutorials on how to use cocotb? #
If you are just looking to use cocotb for verifying HDL check out our tutorials page