A sky130 PDK builder/version manager
Project description
[WIP] Volare
Volare is a work-in-progress builder and version manager for the builds of the sky130 pdk.
It only works with portable versions of the sky130 open_pdk builds.
Requirements
- Python 3.6+ with PIP
Installation
python3 -m pip install --upgrade --no-cache-dir volare
Usage
Volare requires a so-called PDK Root. This PDK root can be anywhere on your computer, but by default it's the folder ~/.volare
in your home directory. If you have the variable PDK_ROOT
set, volare will use that instead. You can also manually override both values by supplying the --pdk-root
commandline argument.
Downloading and Enabling PDKs
In its current inception, volare supports builds of the sky130 PDK using Open_PDKs, including the following libraries:
- sky130_fd_io
- sky130_fd_pr
- sky130_fd_sc_hd
- sky130_fd_sc_hvl
- sky130 sram modules
You can enable a particular sky130 PDK by invoking volare enable <open_pdks version>
. This will automatically download that particular version of the PDK, if found, and set it as your currently used PDK.
For example, to enable open_pdks 7519dfb04400f224f140749cda44ee7de6f5e095
, you invoke volare enable 7519dfb04400f224f140749cda44ee7de6f5e095
.
Of course, this isn't 100% ideal. If you're using a repository with a tool_metadata.yml file, such as OpenLane or DFFRAM, you can just invoke volare enable
and Volare will automatically infer the version you're looking folder.
Listing PDKs
Invoking Volare in a terminal will look something like this:
/usr/local/pdk/volare/versions
├── 7519dfb04400f224f140749cda44ee7de6f5e095 (enabled)
└── 34eeb2743e99d44a21c2cedd467675a2e0f3bb91
Where the first path has all the versions installed.
Building PDKs
For special cases, i.e. you require other libraries, you'll have to build the PDK yourself, which Volare does support.
It does require Docker 19.04 or higher, however.
You can invoke volare build --help
for more options. Be aware, the built PDK won't automatically be enabled and you'll have to volare enable
the appropriate version.
License
The Apache License, version 2.0. See 'License'.
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.