I have added support for the OSU 3.3V standard cel...
# gf180mcut
Tim Edwards
09/29/2022, 8:16 PMI have added support for the OSU 3.3V standard cell library (see the link from Matt Venn, above) to open_pdks, for anyone who wants to try it. We'll be working toward getting Openlane support for the library. Eventually, I want to get a dual-voltage (5V external, 3.3V internal) version of Caravel done, although for that we will need to extend the existing 5V libraries with level shifter cells.
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Matt Liberty
09/29/2022, 9:54 PMIt would be helpful to know your plans around level shifters as we don't yet support multiple power domains well.
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proppy
09/30/2022, 4:40 AM@Tim Edwards are you pulling them from their fork? I'm still reviewing https://github.com/google/globalfoundries-pdk-libs-gf180mcu_osu_sc/pulls
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Tim Edwards
09/30/2022, 1:06 PM@proppy: Yes, I am pulling from their fork.
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proppy
10/06/2022, 9:06 AM@Vijayan Krishnan was asking about #open_pdks and #openlane support for the 3.3V library
proppy
10/06/2022, 9:07 AMI do have a bootleg build of volare with it here: https://github.com/proppy/volare-gf180mcu-wip/releases/tag/gf180mcu-d7c3a52_465f1da_3d1aed6
proppy
10/06/2022, 9:28 AMbut the current open_pdks doesn't have any openlane config afaik, so I don't think you can run a 3.3V flow just yet.
proppy
10/06/2022, 9:40 AMI updated the gf180mcuc notebook I've been playing with if you want to give it a try: https://colab.research.google.com/gist/proppy/21d9607540800c70c313c78bbebd84bf/gf180mcu-openlane-playground.ipynb
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Vijayan Krishnan
10/06/2022, 10:09 AMthanks. I'll wait for the update