create_clock [get_ports {"serial_clock"} ] -name "serial_clock"  -period $::env(CLOCK_PERIOD)
create_clock [get_ports {"serial_load"} ] -name "serial_load"  -period $::env(CLOCK_PERIOD)

set_propagated_clock [get_clocks {serial_load}]

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_input_delay $input_delay_value  -clock [get_clocks $::env(CLOCK_PORT)] [all_inputs]
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 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)}]

puts "\[INFO\]: Setting clock uncertainity to: $::env(SYNTH_CLOCK_UNCERTAINITY)"
set_clock_uncertainty $::env(SYNTH_CLOCK_UNCERTAINITY) [get_clocks {serial_clock}]
set_clock_uncertainty $::env(SYNTH_CLOCK_UNCERTAINITY) [get_clocks {serial_load}]

puts "\[INFO\]: Setting clock transition to: $::env(SYNTH_CLOCK_TRANSITION)"
set_clock_transition $::env(SYNTH_CLOCK_TRANSITION) [get_clocks {serial_clock}]
set_clock_transition $::env(SYNTH_CLOCK_TRANSITION) [get_clocks {serial_load}]