a2p/build/openroad

https://github.com/The-OpenROAD-Project/OpenROAD-flow-scripts/tree/master/flow

create dir and add sources

cd ../../..
make DESIGN_CONFIG=./designs/sky130hd/a2p/config.mk

docs

https://openroad.readthedocs.io/en/latest/user/UserGuide.html#option-1-rtl-to-gds-flow

http://www.clifford.at/yosys/files/yosys_manual.pdf

https://people.eecs.berkeley.edu/~alanmi/abc/

35a3f1e4e3/doc/OpenSTA.pdf

steps

1. initial synth/timing

• initialize floorplan (initialize_floorplan)
• gate_resizer (multiple commands)
  • can set estimated wire rc per layer
  • can add buffers on I/O
  • repairs fanouts/caps/etc.
  • STA can run before and/or after this
• OpenSTA (sta)

2. full PD

• macro place (macro_placement)
• tapcell/endcap (tapcell)
• global placement (global_placement)
• detailed placement (legalize_placement)
• CTS (clock_tree_synthesis)
• global routing (fast_route) the unit hangs appear here in report_power
• detailed routing (detailed_route)