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Set drive for Sky130

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This commit is contained in:
David Harris 2023-10-19 13:46:30 -07:00
parent 6e7c0547a1
commit cbf0c01fd6
1 changed files with 17 additions and 9 deletions
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8
synthDC/scripts/synth.tcl
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@ -148,7 +148,11 @@ set all_in_ex_clk [remove_from_collection [all_inputs] [get_ports $my_clk]]
# Setting constraints on input ports
if {$tech == "sky130"} {
if {$drive == "INV"} {
set_driving_cell -lib_cell inv -pin Y $all_in_ex_clk
} elseif {$drive == "FLOP"} {
set_driving_cell -lib_cell sky130_osu_sc_12T_ms__dff_1 -pin Q $all_in_ex_clk
}
} elseif {$tech == "sky90"} {
if {$drive == "INV"} {
set_driving_cell -lib_cell scc9gena_inv_1 -pin Y $all_in_ex_clk
@ -174,7 +178,11 @@ if {$drive == "FLOP"} {
# Setting load constraint on output ports
if {$tech == "sky130"} {
if {$drive == "INV"} {
set_load [expr [load_of sky130_osu_sc_12T_ms_TT_1P8_25C.ccs/sky130_osu_sc_12T_ms__inv_4/A] * 1] [all_outputs]
} elseif {$drive == "FLOP"} {
set_load [expr [load_of sky130_osu_sc_12T_ms_TT_1P8_25C.ccs/sky130_osu_sc_12T_ms__dff_1/D] * 1] [all_outputs]
}
} elseif {$tech == "sky90"} {
if {$drive == "INV"} {
set_load [expr [load_of scc9gena_tt_1.2v_25C/scc9gena_inv_4/A] * 1] [all_outputs]