blob: 41dd4de1b3346e1c819676640c6679de0edd4b40 [file] [log] [blame]
if {[info exists ::env(CLOCK_PORT)] && $::env(CLOCK_PORT) != ""} {
create_clock [get_ports $::env(CLOCK_PORT)] -name $::env(CLOCK_PORT) -period $::env(CLOCK_PERIOD)
} else {
create_clock -name __VIRTUAL_CLK__ -period $::env(CLOCK_PERIOD)
set ::env(CLOCK_PORT) __VIRTUAL_CLK__
}
set input_delay_value [expr $::env(CLOCK_PERIOD) * $::env(IO_PCT)]
set output_delay_value [expr $::env(CLOCK_PERIOD) * $::env(IO_PCT)]
puts "\[INFO\]: Setting output delay to: $output_delay_value"
puts "\[INFO\]: Setting input delay to: $input_delay_value"
set_max_fanout $::env(SYNTH_MAX_FANOUT) [current_design]
#set_max_cap 0.3 [current_design]
#set_max_trans 1.5 [current_design]
set clk_indx [lsearch [all_inputs] [get_port $::env(CLOCK_PORT)]]
set rst_indx [lsearch [all_inputs] [get_port $::env(RESET_PORT)]]
set all_inputs_wo_clk [lreplace [all_inputs] $clk_indx $clk_indx]
set all_inputs_wo_clk_rst [lreplace $all_inputs_wo_clk $rst_indx $rst_indx]
#set all_inputs_wo_clk_rst $all_inputs_wo_clk
# correct resetn
set_input_delay $input_delay_value -clock [get_clocks $::env(CLOCK_PORT)] $all_inputs_wo_clk_rst
#set_input_delay 0.0 -clock [get_clocks $::env(CLOCK_PORT)] {resetn}
set_output_delay $output_delay_value -clock [get_clocks $::env(CLOCK_PORT)] [all_outputs]
# TODO set this as parameter
set_driving_cell -lib_cell $::env(SYNTH_DRIVING_CELL) -pin $::env(SYNTH_DRIVING_CELL_PIN) [all_inputs]
set cap_load [expr $::env(SYNTH_CAP_LOAD) / 1000.0]
puts "\[INFO\]: Setting load to: $cap_load"
set_load $cap_load [all_outputs]
puts "\[INFO\]: Setting clock uncertainity to: $::env(SYNTH_CLOCK_UNCERTAINITY)"
set_clock_uncertainty $::env(SYNTH_CLOCK_UNCERTAINITY) [get_clocks $::env(CLOCK_PORT)]
puts "\[INFO\]: Setting clock transition to: $::env(SYNTH_CLOCK_TRANSITION)"
set_clock_transition $::env(SYNTH_CLOCK_TRANSITION) [get_clocks $::env(CLOCK_PORT)]
puts "\[INFO\]: Setting timing derate to: [expr {$::env(SYNTH_TIMING_DERATE) * 10}] %"
set_timing_derate -early [expr {1-$::env(SYNTH_TIMING_DERATE)}]
set_timing_derate -late [expr {1+$::env(SYNTH_TIMING_DERATE)}]
#set LIB_FILE "sky130_sram_1kbyte_1rw1r_32x256_8_TT_1p8V_25C.lib"