fpga-sofa-chd: Skywater Opensource FPGA (SOFA) - CHD Design

Clone this repo:
  1. feb6c0f Updating the shuttle_url value in `info.yaml` file. by Tim 'mithro' Ansell · 11 months ago main
  2. 56f4613 caravel_fix by Jeff DiCorpo · 2 years, 6 months ago master
  3. 3ac18ca final gds & drc results by Jeff DiCorpo · 2 years, 9 months ago mpw-one-final
  4. 29b0d93 [DRCFix] Swpapped filer cells with decap cells by Ganesh Gore · 2 years, 10 months ago
  5. 52b2c4f Updated info.yml by Ganesh Gore · 2 years, 10 months ago



  • Opensource 12x12 FPGA designed using OpenFPGA prototyping tool
  • Designed with Skywater130nm PDK with HD standard cell library + and Custom Transmission Gate Cells
  • Base K4 architecture from VPR with 60 vertical and horizontal channels
  • Soft adder implementation
  • 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