Hi there!
I'm trying to run my test design through...
# openlanee
Eugene Stolbikov
08/05/2021, 3:59 PMHi there!
I'm trying to run my test design through OpenLane flow and in config.tcl file I use automatic option for DIE_AREA and CORE_AREA calculations based on PL_TARGET_DENSITY_CELLS value.
I set PL_TARGET_DENSITY_CELLS=0.5 and got error during global routing:
End InitialPlace
[ERROR GPL-0302] Filler area is negative!!
Please put higher target density or
Re-floorplan to have enough coreArea
Error: or_replace.tcl, 94 GPL-0302
Is area calculated incorrectly in automatic mode?
j
John Samuel
08/05/2021, 4:07 PMNo it works fine in both automated and interactive mode
e
Eugene Stolbikov
08/05/2021, 4:11 PMSo why I have this error?
j
John Samuel
08/05/2021, 4:13 PMYou need to make changes to your config files ie config.tcl file which will point to your design,SDC, clk etc
John Samuel
08/05/2021, 4:14 PMAnd check your floorplan.tcl file for what you wanna understand what has really happened
e
Eugene Stolbikov
08/05/2021, 4:55 PMLooks like you didn’t catch my question.
j
John Samuel
08/05/2021, 5:49 PMI guess we don't need to set anything else other than changes in config.tcl file which will point to your design,SDC, clk etc. Rest of them you can change only if we know the format of commands I guess
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