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Logik: Open-source FPGA toolchain by Zero ASIC

April 4, 2024
in Technology
Logik: Open-source FPGA toolchain by Zero ASIC
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Logik

Regression
Lint

Logik is an open source FPGA toolchain that fully automates converting RTL to bits, including synthesis, placement, routing, bitstream generation, and analysis. Users enter design sources, constraints, and compile options through a simple SiliconCompiler Python API. Once setup is complete, automated compilation can be initiated with a single line run command.

logik_flow

Logik supports most of the features you would expect in a commercial proprietary FPGA tool chain.

Feature
Status

Design languages
Verilog, SystemVerilog, VHDL

ALU synthesis
Supported

RAM synthesis
Supported

Timing constraints (SDC)
Supported

Pin Constraints (PCF)
Supported

Bitstream generation
Supported

IP management
Supported

Remote compilation
Supported

Multi-clock designs
In progress

FPGA devices
ZA

The Logik project is available through PyPi and can be installed using pip. If you want to run locally on your machine, you will need to install all of the pre-requisites or launch the Logik Docker image.

python -m pip install –upgrade logik

The following example illustrate some essential Logik features. For complete documentation of all options available, see the SiliconCompiler project.

from siliconcompiler import Chip
from logik.targets import logik_target

def hello_adder():

# Create compilation object
chip=Chip(‘adder’)

# Specify design sources
chip.input(‘adder.v’)

# Specify pin constraints
chip.input(‘adder.pcf’)

# Compiler options
chip.set(‘option’, ‘quiet’, True)
chip.set(‘option’, ‘remote’, True)

# Select target fpga
chip.set(‘fpga’, ‘partname’, ‘logik_demo’)

# Load target settings
chip.load_target(logik_target)

# Run compiler
chip.run()

# Display compiler results
chip.summary()

if __name__==”__main__”:
hello_adder()

This code can be run with ./adder.py -remote in the examples/adder directory, resulting in an FPGA bitstream at build/adder/job0/convert_bitstream/0/outputs/adder.bin.

To test out the generated bitstream, you can upload it to an emulated FPGA device running in the Zero ASIC Digital Twin Platform.

UMI “Hello World”
UMI FIR Filter
EBRICK demo

Logik Documentation
SiliconCompiler Documentation

Logik is available as wheel packages on PyPI for macOS, Windows and Linux platforms. For a Python 3.8-3.12 environment, just use pip to install.

python -m pip install –upgrade logik

Running natively on your local machine will require installing a number of prerequisites:

Silicon Compiler: Hardware compiler framework
Yosys: Logic synthesis
VPR: FPGA place and route
GHDL: VHDL parser
Surelog: SystemVerilog parser
FASM: FPGA assembly parser and generator

Automated Ubuntu based install scripts are included for convenience within the SiliconCompiler project. Detailed instructions for installing all tools can be found in the SiliconCompiler Installation Guide.

A Docker image is provided for users who wish to avoid the installation of the pre-requisite tools. The following command starts a new container from that image and maps the local directory sc_work to the path /sc_work in the container.

docker run -it -v “${PWD}/sc_work:/sc_work” ghcr.io/siliconcompiler/sc_runner:latest

MIT

We use GitHub Issues for tracking requests and bugs.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : Hacker News – https://github.com/zeroasiccorp/logik

Tags: Logikopen-sourcetechnology
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