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A Python toolbox for building complex digital hardware
Home Page: http://m-labs.hk
License: Other
This project forked from m-labs/migen
A Python toolbox for building complex digital hardware
Home Page: http://m-labs.hk
License: Other
Migen (Milkymist generator) a Python toolbox for building complex digital hardware Despite being faster than schematics entry, hardware design with Verilog and VHDL remains tedious and inefficient for several reasons. The event-driven model introduces issues and manual coding that are unnecessary for synchronous circuits, which represent the lion's share of today's logic designs. Counter- intuitive arithmetic rules result in steeper learning curves and provide a fertile ground for subtle bugs in designs. Finally, support for procedural generation of logic (metaprogramming) through "generate" statements is very limited and restricts the ways code can be made generic, reused and organized. To address those issues, we have developed the Migen FHDL library that replaces the event-driven paradigm with the notions of combinatorial and synchronous statements, has arithmetic rules that make integers always behave like mathematical integers, and most importantly allows the design's logic to be constructed by a Python program. This last point enables hardware designers to take advantage of the richness of the Python language - object oriented programming, function parameters, generators, operator overloading, libraries, etc. - to build well organized, reusable and elegant designs. Other Migen libraries are built on FHDL and provide various tools such as a system-on-chip interconnect infrastructure, a dataflow programming system, a more traditional high-level synthesizer that compiles Python routines into state machines with datapaths, and a simulator that allows test benches to be written in Python. See the doc/ folder for more technical information. Quick intro: from migen.fhdl.std import * from mibuild.platforms import m1 plat = m1.Platform() led = plat.request("user_led") m = Module() counter = Signal(26) m.comb += led.eq(counter[25]) m.sync += counter.eq(counter + 1) plat.build_cmdline(m) Code repository: https://github.com/m-labs/migen System-on-chip design based on Migen: https://github.com/m-labs/misoc Migen is designed for Python 3.3. Migen is released under the very permissive two-clause BSD license. Under the terms of this license, you are authorized to use Migen for closed-source proprietary designs. Even though we do not require you to do so, those things are awesome, so please do them if possible: * tell us that you are using Migen * put the Migen logo (doc/migen_logo.svg) on the page of a product using it, with a link to m-labs.hk * cite Migen in publications related to research it has helped * send us feedback and suggestions for improvements * send us bug reports when something goes wrong * send us the modifications and improvements you have done to Migen. The use of "git format-patch" is recommended. If your submission is large and complex and/or you are not sure how to proceed, feel free to discuss it on the mailing list or IRC (#m-labs on Freenode) beforehand. Note that Migen is not spelled MiGen. See LICENSE file for full copyright and license info. You can contact us on the public mailing list devel [AT] lists.m-labs.hk. "Electricity! It's like magic!"
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