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

Clone this repo:
  1. 0aedaaf final gds & drc results by Jeff DiCorpo · 8 weeks ago master mpw-one-final
  2. a786949 final gds & drc results by Jeff DiCorpo · 9 weeks ago
  3. b5992e6 [DRCFix] Removed boundary fillers by Ganesh Gore · 9 weeks ago
  4. d31c00a [DRCfix] Swapped fill cell with decap+fill by Ganesh Gore · 10 weeks ago
  5. f813167 [DRCfix] Swapped fill cells with decap cells by Ganesh Gore · 10 weeks 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