Update README.md

docs/README.md

@@ -17,25 +17,20 @@ pipx install git+https://github.com/Patarimi/hades
 
 ## Design flow
 
-Starting from the specifications written in a design.yml file, the following flow is run [see](#working-directory).
+Starting from the specifications written in a design.yml or a python file, the following flow is run [see](#working-directory).
 
 ```mermaid
-stateDiagram
- [*] --> app: specifications (.yml)
- app: approximate model
- pl: parametric layouts
- app --> pl: dimensions
- sim: extraction of obtained spec.
- pl --> sim: geometries (.gdsII)
- pdk --> sim: process (.proc)
- pdk --> pl: LayerStack
- cal: calibrator
- state atSpec <<choice>>
- sim --> atSpec: obtained specifications (.sNp or dataframe)
- atSpec --> [*]: at spec
- atSpec --> cal: not at spec
- app --> cal: dimensions
- cal --> app: updated parameters
+flowchart TD
+ start -- "specifications (.yml)" --> app["Physical Model\n(hades.devices)"]
+ app --dimensions --> pl["Parametric Layout\n(gdstk + hades.layouts)"]
+ pl --"geometries (.gdsII)" --> be_sim["RC extraction up to Mx\n(Magic-VLSI)"]
+ pl --"geometries (.gdsII)" --> fe_sim["3D simulation from Mx\n(OpenEMS)"]
+ fe_sim -- "touchstone (.sNp)" --> ext["Spice simulation and spec. extraction.\n(NGSpice + Scikit-RF)"]
+ be_sim --"netlist (.cir)" --> ext
+ ext --"Performances (.yml)" --> atSpec{"Perf = Spec ?"}
+ atSpec --> |Yes| stop
+ atSpec --> |No| cal["Model Calibrator\n(hades.calibrator)"]
+ cal --"Locally Optimized Parameters" --> app
 ```
 
 When finished, a _.gds_ file is available for further design.