| ## Clock configurations |
| set ::env(CLOCK_PORT) {io_in\[17\]} |
| set ::env(CLOCK_NET) "CONTROL_LOGIC.clk" |
| set ::env(RESET_PORT) {io_in\[15\] wb_rst_i} |
| |
| set ::env(CLOCK_PERIOD) "30" |
| |
| set ::env(IO_PCT) 0.2 |
| set ::env(SYNTH_DRIVING_CELL) "sky130_fd_sc_hd__inv_1" |
| set ::env(SYNTH_DRIVING_CELL_PIN) "Y" |
| set ::env(SYNTH_CAP_LOAD) "33.5" |
| set ::env(SYNTH_MAX_FANOUT) "4" |
| |
| create_clock [get_ports $::env(CLOCK_PORT)] -name $::env(CLOCK_PORT) -period $::env(CLOCK_PERIOD) |
| set_propagated_clock [get_ports $::env(CLOCK_PORT)] |
| |
| 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 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)] [get_port $::env(RESET_PORT)] |
| 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] |
| |
| report_clock_skew |