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#openlane
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# openlane
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Siva Prasad

10/06/2021, 4:42 PM
Hi everyone, Some help would be nice. I am facing a power grid generation failure. I couldn't make it out the issue. Thanks
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Matt Venn

10/06/2021, 4:43 PM
are you hardening a single macro? in which case it's probably too small. Use absolute sizing (check the inverter example)
if you are at the user_project_wrapper level, then again, your macro could be too small. Check the pdn.def file and look where the macros are in relation to the grid
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Siva Prasad

10/06/2021, 4:51 PM
I am hardening a single macro. Is it cause the floorplan area is too big for such a small design.
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Matt Venn

10/06/2021, 4:52 PM
Probably
Check the inverter example to set a bigger size
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Siva Prasad

10/06/2021, 4:54 PM
I will try that. Also can you please give an insight in "filler area negative" error
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Krzysztof Herman

10/07/2021, 1:36 AM
Hi guys, I am facing exactly the same issue but the difference is thy my macros, (I have 2) are not small 1500x500
however I do have eome extra logic on the top level where I instantiated macros