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Diffstat (limited to 'README.md')
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1 files changed, 24 insertions, 7 deletions
@@ -1,10 +1,21 @@ nextpnr -- a portable FPGA place and route tool =============================================== -nextpnr is an FPGA place and route tool with emphasis on supporting a wide -range of real-world FPGA devices. It currently supports Lattice iCE40 devices -and Lattice ECP5 devices, as well as a "generic" back-end for user-defined -architectures. (ECP5 and "generic" support are still experimental.) +nextpnr is an FPGA place and route tool with emphasis on supporting +timing-driven place and route for a wide range of real-world FPGA devices. +It currently supports Lattice iCE40 devices and Lattice ECP5 devices, +as well as a "generic" back-end for user-defined architectures. +(ECP5 and "generic" support are still experimental.) + +Currently nextpnr is beta software at best. But we aim at replacing +arachne-pnr as official place-and-route tool for the icestorm flow soon. + +Here is a screenshot of nextpnr for iCE40. Build instructions and getting +started notes can be found below. + + +<img src="https://i.imgur.com/0spmlBa.png" width="640"/> + Prerequisites ------------- @@ -144,9 +155,15 @@ Links and references - [Project X-Ray (Xilinx 7-Series)](https://symbiflow.github.io/prjxray-db/) - [Project Chibi (Intel MAX-V)](https://github.com/rqou/project-chibi) -### Other FOSS place and route tools (FPGA and ASIC) +### Other FOSS FPGA place and route projects - [Arachne PNR](https://github.com/cseed/arachne-pnr) - [VPR/VTR](https://verilogtorouting.org/) -- [graywolf/timberwolf](https://github.com/rubund/graywolf) -- [qrouter](http://opencircuitdesign.com/qrouter/) +- [SymbiFlow](https://github.com/SymbiFlow/symbiflow-arch-defs) +- [Gaffe](https://github.com/kc8apf/gaffe) +- [KinglerPAR](https://github.com/rqou/KinglerPAR) + +> SymbiFlow is working with the Verilog to Routing tool to extend the current +research tool to support real architectures. VtR is strongly focused on +architecture research but having support for real architectures might enable +research nextpnr zu providing documentation and explanation. |