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TapeOut: 2020-07 Unused power signal mismatch

Open d-m-bailey opened this issue 3 years ago • 2 comments
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This issue needs to be resolved or waived before tapeout.

https://gitlab.com/api/v4/projects/36768579/repository/files/tapeout%2Foutputs%2Foas%2Fcaravel_2204289a.oas/raw?ref=main
15adb4f6dd8e482041f8bad67a281c75c6fdd0cd  caravel_2204289a.oas

Some of the power nets that are unused in user_project_wrapper do not match the connections to caravel chip_io.

chip_io user_project_wrapper
vssa1_core vssd2
vssd2_core vdda1
vdda1_core vdda2
vdda2_core vssa1

These nets are not actually used in user_project_wrapper, so relabeling would be sufficient.

vssa1-vssd2

d-m-bailey avatar Jul 12 '22 16:07 d-m-bailey

We need to check if it impacts other projects.

mkkassem avatar Jul 25 '22 20:07 mkkassem

@d-m-bailey I was looking at the pdn and looks like you are highlighting the wrong net, vssd2 is the 5th ring from the right, not the third 222

marwaneltoukhy avatar Aug 15 '22 17:08 marwaneltoukhy