Does anyone know how to fix these XOR issues?
# shuttle-precheckj
Jure Vreča
06/03/2022, 12:01 PMDoes anyone know how to fix these XOR issues?
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Mitch Bailey
06/03/2022, 1:15 PMLooks like your
user_project_wrapperc
Charlie Smith
06/03/2022, 1:33 PMWhat version of openlane are you using? I encountered something similar when using the most recent version, which has a newer PDN generator. However, I believe for the shuttle an older version of openlane is required.
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Egor Lukyanchenko
06/04/2022, 5:30 AMIf you're using latest OpenLane, you should set FP_PDN_CORE_RING_VOFFSET & FP_PDN_CORE_RING_HOFFSET to 12.45 and look here for PDN script with correct PDN rings order: https://github.com/The-OpenROAD-Project/OpenLane/pull/1109
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Jure Vreča
06/04/2022, 10:40 AMI am using the latest (or one of the latest) versions of openlane. But changing the FP_PDN_CORE_RING_VOFFSET and HOFFSET macros to 12.45 did the trick. Thank your Egor for the tip.
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Egor Lukyanchenko
06/04/2022, 10:32 PMI'm glad to help. Please also note that unless you apply fixed PDN script from PR above, or use absolutely latest OpenLane version (this PR was merged only today) you'll end with chip passing all checks, but having shorted power supplies.
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