Tried the instructions given in the link https://opensource.googleblog.com/2022/10/announcing-globalfoundries-open-mpw-shuttle-program.html Basically "export PDK=gf180mcuC" and "make setup". It did not download GF pdk and install it. make <myip> gave error. "......./dependencies/pdks/gf180mcuC/ directory not found"

Check this thread: https://open-source-silicon.slack.com/archives/C03R1GRP9LG/p1667373596857139

Yes, applying https://github.com/efabless/caravel_user_project/pull/175 should allow

make setup

to download the right pdk.

Not clear about this pull. My GitHub public repo was created 3 months back following the instructions given that time. Basically it is derived from caraval project repo plus my designs checked in. Today I cloned that repo in a clean area and hoped to get gf180mcuC downloaded. Do I have to do anything in my GitHub repo?

Doing the same modification in the pull request, or simply running

export OPEN_PDKS_COMMIT=120b0bd69c745825a0b8b76f364043a1cd08bb6a

should workaround this issue, until it gets merged