Final changes, harden

* Add one more layer of wrapper, to make some extra connections
* Harden project
* Update readme/info.yaml
* final test polish
25 files changed
tree: 385ad97a039a953ca8dc5fb0160ddbc7f1af81ff
  1. def/
  2. docs/
  3. gds/
  4. lef/
  5. mag/
  6. maglef/
  7. openlane/
  8. signoff/
  9. spi/
  10. verilog/
  11. .gitignore
  12. .gitmodules
  13. info.yaml
  15. Makefile
  17. sudoku_accelerator_wrapper.png


This project contains a two sudoku accelerator modules on a wishbone bus.

Each solver module is capable of performing both a simple ‘only candidate’ method, as well as finding row-only ‘naked singles’.

A single ‘only candidate’ pass on the whole puzzle completes in 23 cycles, and a ‘naked singles’ pass completes in 108 cycles.

The solver will exit early during a run if the puzzle becomes solved, or if a single cell ends up with no remaining valid values (do note that this doesn't mean the solver can detect all illegal puzzles).

This design also contains a modified FIFO-enabled version of simpleuart (from caravel) to make external communication easier.