HI , I am using openlane with skywater. I am getti...
# sky130
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HI , I am using openlane with skywater. I am getting PDN issues. My repo is -
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<https://github.com/bhawandeepsingh/darkriscv_in_openlane>
My top level is
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openlane/darksocv
It has two macros made from
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openlane/darkriscv
and
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openlane/darkuart
My top level pdn has issues, I do not know the root cause but the observed behavior is - It first gives error in PDN -
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GND Pin not found for both the macros
although I specified everything according to the openlane documentation or so I think. Then, it gives many thousands of warnings -
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[WARNING PSM-0030] Vsrc location at (-1126901.776um, -1126336.416um) and size =10.000um, is not located on a power stripe. Moving to closest stripe at (5.400um, 27.290um).
[WARNING PSM-0030] Vsrc location at (-1126761.776um, -1126336.416um) and size =10.000um, is not located on a power stripe. Moving to closest stripe at (5.400um, 27.290um).
[WARNING PSM-0030] Vsrc location at (-1126621.776um, -1126336.416um) and size =10.000um, is not located on a power stripe. Moving to closest stripe at (5.400um, 27.290um).
[WARNING PSM-0030] Vsrc location at (-1126481.776um, -1126336.416um) and size =10.000um, is not located on a power stripe. Moving to closest stripe at (5.400um, 27.290um).
[WARNING PSM-0030] Vsrc location at (-1126341.776um, -1126336.416um) and size =10.000um, is not located on a power stripe. Moving to closest stripe at (5.400um, 27.290um).
[WARNING PSM-0030] Vsrc location at (-1126201.776um, -1126336.416um) and size =10.000um, is not located on a power stripe. Moving to closest stripe at (5.400um, 27.290um).
[WARNING PSM-0030] Vsrc location at (-1126061.776um, -1126336.416um) and size =10.000um, is not located on a power stripe. Moving to closest stripe at (5.400um, 27.290um).
[INFO PSM-0031] Number of nodes on net VPWR = 885014.
[INFO PSM-0037] G matrix created sucessfully.
[ERROR]: during executing: "openroad -exit /open
and then exits with no information in any of the specified logs. Also, the horizontal connections for PDN at my top level seem to be in metal 3 although I specified metal 5.in my openlane/darksocv/pdn.tcl. Can anybody help with what is happening here and how I can solve this ? Also it will be very helpful if someone can tell how I can confirm if my macros are done correctly. Thanks