Custom IC Creator Python

Python toolbox for transpiling ciccreator output to other IC design formats.

Install

Latest from git:

git clone https://github.com/wulffern/cicpy
cd cicpy
pip install -e .

Stable release from PyPI:

pip install cicpy

Commands

cicpy [OPTIONS] COMMAND [ARGS]...

| Command | Description | |---------|-------------| | transpile | Translate .cic to SKILL layout/schematic, SPICE, Verilog, Xschem, Magic, SVG | | jcell | Extract a single cell from a .cic file as JSON | | sch2mag | Netlist an Xschem schematic to SPICE, then place and route to Magic | | spi2mag | Place and route a SPICE subcircuit to Magic | | svg | Generate SVG views from a .cic library | | minecraft | Emit a Minecraft build script from a layout cell | | place | (Deprecated) Place transistors by pattern | | orc | (Deprecated) Orchestration runner | | filter | (Deprecated) Parse-only placeholder |

For full option lists: cicpy --help and cicpy <command> --help

Common transpile options

cicpy transpile SAR9B.cic.gz demo.tech SAR9B \
  --layskill    # Cadence SKILL layout
  --schskill    # Cadence SKILL schematic
  --spice       # ngspice + CDL netlists
  --xschem      # Xschem schematics
  --magic       # Magic .mag layout
  --verilog     # Verilog (experimental)

Extra library includes

Commands that read .cic data accept multiple --I flags to merge library cells:

cicpy svg top.cic tech/cic/sky130A.tech TOP \
  --I analog_lib.cic \
  --I digital_lib.cic

Changelog

| Version | Comment | |---------|---------| | 0.0.1 | First version | | 0.1.5 | First PyPI release | | 0.1.8 | Added cicspi dependency and subpackages | | 0.1.9 | Routing, Magic layout, and connectivity improvements |