#20 LIB_MIN / LIB_MAX swapped in cells configs Issue opened by smunaut

open_pdks/sky130/openlane/sky130_fd_sc_hd/config.tcl

contains :

set ::env(LIB_MAX) "$::env(PDK_ROOT)/TECHNAME/libs.ref/sky130_fd_sc_hd/lib/sky130_fd_sc_hd__ff_n40C_1v95.lib"
set ::env(LIB_MIN) "$::env(PDK_ROOT)/TECHNAME/libs.ref/sky130_fd_sc_hd/lib/sky130_fd_sc_hd__ss_100C_1v60.lib"

But that's not good.

LIB_MAX

is used for maximum delay computations ( for setup time analysis ) and so this should be the slower possible corner (

SS

at high temp with low voltage ) And similarely,

LIB_MIN

is used for minimum delay computations ( for hold time analysis ) and so this should be the fastest possible corner (

FF

at low temps with high voltage ) RTimothyEdwards/open_pdks