I tried hardening Pranav's project with my mpw-3a tooling and got the same result

I just tried copying Pranav's design into my submission and that worked, the PDN is interrupted where the macros will be placed

I tried with a fresh caravel_user_project checked out at mpw-3, which also failed

then I remembered that instaling caravel with make install always uses the latest version of caravel-lite

and the most recent caravel-lite seems to be missing cruicial configuration (nothing in caravel/openlane for example)

so then I checked out the caravel submodule to the mpw-3 tag (https://github.com/efabless/caravel-lite/releases/tag/mpw-3)

and that works

and we are also seeing problems related to tapeout with @User recent issue: https://skywater-pdk.slack.com/archives/C017HPHCMEY/p1640334814382200

All I can say is use the mpw3-a tooling and the mpw-3 tagged caravel. Make sure the caravel-lite submodule is checked out to mpw-3 (it won't by default). This combination will pass precheck and tapeout

AFAIK, Efabless have not made an announcement about what version of tools or caravel to use, so use anything else at your own risk

@User @User

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so what I'm trying now is after installing caravel submodule, check out to this commit: 5712871d27c08900d18edc72a7f534cc8be1b2dd

which still uses the efabless github repo, where the mpw-3 tag is present