spice2sch 0.1.1

A CLI to convert SkyWater SKY130 spice files into xschem .sch files.

spice2sch

A CLI to convert SkyWater SKY130 spice files into xschem .sch files. Designed for sifferman/sky130_schematics. Available from PyPI.

Use without installing

For uv users

uvx spice2sch -h

Installation

For uv users (recommended)

uv tool install spice2sch

For pip users

pip install spice2sch

Usage

[!CAUTION] The output file will be overwritten without warning.

Specify and input .spice and and output .sch file.

spice2sch -i file.spice -o file.sch

Input and output will default to stdin and stdout making this equivalent to the above command:

cat file.spice | spice2sch > file.sch

Example

1. Generate a sch file. The following command uses uvx to use the package without downloading, and pipes a spice netlist from the clipboard to the tool.

wl-paste | uvx spice2sch -o sky130_fd_sc_hd__xor3_4.sch

2. Open the generated .sch file and manually arrange components. After running tool: After organizing gates:

Limitations

• Currently this program will assume all components are transistors. Using this on a .spice file with other components will not work.
• Although schematics will pass a Layout Versus Schematic (LVS) check, all components must be manually rearranged.

Running from source with uv

Clone the repo

git clone [e-mail]:eliahreeves/spice2sch.git
cd spice-to-sh

Build and run

uv run spice2sch

[!NOTE] You may need to remove existing installations using uv tool uninstall spice2sch or similar in order to avoid namespace confilcts.