fpga-sofa-hd: Skywater Opensource FPGA (SOFA) - High Density Design

Clone this repo:
  1. b1cde5b Updating the shuttle_url value in `info.yaml` file. by Tim 'mithro' Ansell · 1 year, 2 months ago main
  2. 829a885 caravel_fix by Jeff DiCorpo · 2 years, 9 months ago master
  3. 0aedaaf final gds & drc results by Jeff DiCorpo · 3 years ago mpw-one-final
  4. a786949 final gds & drc results by Jeff DiCorpo · 3 years, 1 month ago
  5. b5992e6 [DRCFix] Removed boundary fillers by Ganesh Gore · 3 years, 1 month ago



  • Opensource 12x12 FPGA designed using OpenFPGA prototyping tool
  • Designed with Skywater130nm PDK with HD standard cell library
  • Base K4 architecture from VPR with 40 vertical and horizontal channels
  • No adders (carry-chain) or flipflop reset pins
  • Designed using commercial PnR tool



  • This repository is created for The eFabless Open MPW shuttle program submission
  • The repository is auto-updated. For any commits issues and feature requests, please check Skywater-OpenFPGA

Caravel design and CIIC Harness

For caravel related updated refer efabless/caravel