| # Caravel User Project |
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| [](https://opensource.org/licenses/Apache-2.0) [](https://github.com/efabless/caravel_project_example/actions/workflows/user_project_ci.yml) [](https://github.com/efabless/caravel_project_example/actions/workflows/caravel_build.yml) |
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| # Libresilicon StdCellLib LS130 - SKY130 Test-wafer |
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| This project is a test-wafer which puts various LS130 cells into the user-area of a Caravel harness for taping the LS130 cells out on the Skywater 130nm process. |
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| The LS130 cells are generated with the https://github.com/thesourcerer8/StdCellLib flow (which uses Librecell's lclayout and lctime), using the Tech.SKY130 configuration. |
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| The build report can be seen here: https://pdk.libresilicon.com/dist/StdCellLib_20210618/Catalog/buildreport.html |
| The cells were copied into this repository to avoid additional dependencies: https://github.com/thesourcerer8/caravel_stdcelllib_stdcells_project/tree/main/cells |
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| A generator was developed to generate a Verilog file for all the cells that places each cell once and connects it to the IOs of the harness: |
| https://github.com/thesourcerer8/caravel_stdcelllib_stdcells_project/blob/main/scripts/generator.pl |
| The script needs to be run from the Catalog directory of your StdCellLib. The output is then used as https://github.com/thesourcerer8/caravel_stdcelllib_stdcells_project/blob/main/verilog/rtl/user_proj_example.v |
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| In the end I adapted https://github.com/thesourcerer8/caravel_stdcelllib_stdcells_project/blob/main/openlane/user_proj_example/config.tcl to use the cells as blackbox cells. |
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| Build process: |
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| git clone git@github.com:thesourcerer8/caravel_stdcelllib_stdcells_project.git |
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| cd caravel_stdcelllib_stdcells_project |
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| # Now please adapt the pathes in the file env.sh where necessary |
| . ./env.sh |
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| make install # install caravel-lite |
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| make pdk # clone and build pdk |
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| make openlane # clone and build build openlane |
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| scripts/deploy2caravel.sh # This takes all the cells from the StdCellLib/Catalog directory and puts them on the Caravel |
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| make user_proj_example # This builds the Caravel |
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| Refer to [README](docs/source/index.rst) for the Caravel documentation. |
