### Caravel Signoff SDC ### Rev 3 ### Date: 28/10/2022 ## MASTER CLOCKS create_clock -name clk -period 18 [get_pins {clock_ctrl/core_clk}] # create_clock -name clk -period 25 [get_ports {clock_core}] set_clock_uncertainty 0.5 [get_clocks {clk}] set_propagated_clock [get_clocks {clk}] ## INPUT/OUTPUT DELAYS set input_delay_value 4 set output_delay_value 20 puts "\[INFO\]: Setting output delay to: $output_delay_value" puts "\[INFO\]: Setting input delay to: $input_delay_value" # set_input_delay $input_delay_value -clock [get_clocks {clk}] -add_delay [all_inputs] set_input_delay 0 -clock [get_clocks {clk}] [get_ports {clock_core}] set_input_delay 1 -clock [get_clocks {clk}] [get_ports {flash_io0_di}] set_input_delay 1 -clock [get_clocks {clk}] [get_ports {flash_io1_di}] # set_output_delay $output_delay_value -clock [get_clocks {clk}] -add_delay [all_outputs] ## MAX FANOUT set_max_fanout $::env(SYNTH_MAX_FANOUT) [current_design] ## FALSE PATHS (ASYNCHRONOUS INPUTS) set_false_path -from [get_ports {rstb_h}] # add loads for output ports (pads) set min_cap 0.5 set max_cap 1.0 puts "\[INFO\]: Cap load range: $min_cap : $max_cap" # set_load 10 [all_outputs] set_load -min $min_cap [all_outputs] set_load -max $max_cap [all_outputs] set min_in_tran 1 set max_in_tran 1.49 puts "\[INFO\]: Input transition range: $min_in_tran : $max_in_tran" set_input_transition -min $min_in_tran [all_inputs] set_input_transition -max $max_in_tran [all_inputs] # derates set derate 0.15 puts "\[INFO\]: Setting derate factor to: [expr $derate * 100] %" set_timing_derate -early [expr 1-$derate] set_timing_derate -late [expr 1+$derate] ## MAX transition/cap set_max_trans 0.9 [current_design] # set_max_cap 0.5 [current_design] # group_path -weight 100 -through [get_pins mprj/la_data_out[0]] -name mprj_floating