schematic driven layout

[joamatab]

How can we make schematic capture of the circuits?

we currently support netlist flow

it would be great to support something like this for analog design flow

[thomasdorch]

Maybe something like SchemDraw?

[joamatab]

Yes, ideally we can get

• automated completion of the circuit elements and ports for the active pdk
• hierarchical schematics

The current YAML has some limitations

@tvt173
@flaport
@proppy

[joamatab]

https://xschem.sourceforge.io/stefan/xschem_man/what_is_xschem.html
https://github.com/StefanSchippers/xschem

Im thinking that with some graphviz visualization on networkx we could support schematic capture

[proppy]

For python bases schematic capture, I looked a bit at https://github.com/devbisme/skidl but I think the current component model of gdsfactory might just be enough.

i.e a schematic is really just a graph of Component without size or position.

wdyt?

[proppy]

PDKMaster also demonstrated python bases schematic capture and layout at FSiC22: https://gitlab.com/Chips4Makers/c4m-pdk-freepdk45/-/blob/master/design/inverter.ipynb

[joamatab]

Yes, we can plot netlist from a component with networkX

Ideally we can also allow users to reorder the graph, either with code or gui-like interactions adding bokeh or plotly callbacks

@flaport

[proppy]

@mithro also pointed us to https://github.com/nturley/netlistsvg before

[joamatab]

https://github.com/StefanSchippers/xschem

Xschem is pretty nice for this

[joamatab]

Here is a nice schematic driven flow, with auto-place and auto-route

https://www.youtube.com/channel/UCd2faHHQ_OAC0hSqBmIRKUQ/videos

with the YAML flow we have place and AutoRoute

[joamatab]

• https://qucat.org/tutorials/basics.html#Building-the-circuit-programmatically
• https://github.com/ntezak/cirq.git

[joamatab]

https://neilturley.dev/netlistsvg/
https://github.com/nturley/netlistsvg

https://github.com/tilk/digitaljs
https://digitaljs.tilk.eu/

@tvt173
@tilk

[joamatab]

https://github.com/Vlsir/Hdl21Schematics looks great

@growly
@dan-fritchman

[joamatab]

release 6.3.1 includes schematic driven flow

https://gdsfactory.github.io/gdsfactory/notebooks/20_schematic_driven_layout.html

thank you Troy!