Built-in hdl21.pdk plug-ins.
- Sky130 serves the SkyWater 130nm technology
- Gf180 serves the Global Foundries 180nm MCU technology
- Asap7 serves the ASAP7 predictive/ academic technology
While source-controlled in the Hdl21 codebase, each are stand-alone packages distributed through PyPi.
An additional fully-fictitious sample_pdk, available in the hdl21 namespace at hdl21.pdk.sample_pdk, makes an even lighter-weight demonstration of a PDK plug-in.