############################################################################### # Created by write_sdc ############################################################################### current_design sdc_test2 ############################################################################### # Timing Constraints ############################################################################### create_clock -name clk1 -period 10.0000 [get_ports {clk1}] create_clock -name clk2 -period 20.0000 [get_ports {clk2}] create_clock -name vclk -period 8.0000 create_clock -name clk1_2x -add -period 5.0000 [get_ports {clk1}] create_clock -name clk_asym -add -period 12.0000 -waveform {0.0000 3.0000} [get_ports {clk2}] create_generated_clock -name gclk_div2 -source [get_ports {clk1}] -divide_by 2 [get_pins {reg1/Q}] set_clock_transition 0.1200 [get_clocks {gclk_div2}] set_clock_uncertainty -setup 0.1500 gclk_div2 set_clock_uncertainty -hold 0.0800 gclk_div2 set_propagated_clock [get_clocks {gclk_div2}] create_generated_clock -name gclk_div3 -source [get_ports {clk2}] -divide_by 3 [get_pins {reg3/Q}] create_generated_clock -name gclk_mul2 -source [get_ports {clk1}] -multiply_by 2 [get_pins {reg2/Q}] set_clock_transition -rise -max 0.1500 [get_clocks {gclk_mul2}] set_clock_latency 0.1500 [get_clocks {gclk_div3}] set_clock_uncertainty -rise_from [get_clocks {clk1}] -rise_to [get_clocks {gclk_div2}] -setup 0.2000 set_clock_uncertainty -rise_from [get_clocks {clk1}] -fall_to [get_clocks {gclk_div2}] -setup 0.2000 set_clock_uncertainty -fall_from [get_clocks {clk1}] -rise_to [get_clocks {gclk_div2}] -setup 0.2000 set_clock_uncertainty -fall_from [get_clocks {clk1}] -fall_to [get_clocks {gclk_div2}] -setup 0.2000 set_clock_uncertainty -rise_from [get_clocks {gclk_div2}] -rise_to [get_clocks {clk2}] -hold 0.1000 set_clock_uncertainty -rise_from [get_clocks {gclk_div2}] -fall_to [get_clocks {clk2}] -hold 0.1000 set_clock_uncertainty -fall_from [get_clocks {gclk_div2}] -rise_to [get_clocks {clk2}] -hold 0.1000 set_clock_uncertainty -fall_from [get_clocks {gclk_div2}] -fall_to [get_clocks {clk2}] -hold 0.1000 set_clock_groups -name genclk_async -asynchronous \ -group [list [get_clocks {clk2}]\ [get_clocks {gclk_div3}]]\ -group [list [get_clocks {clk1}]\ [get_clocks {clk1_2x}]\ [get_clocks {gclk_div2}]\ [get_clocks {gclk_mul2}]] set_input_delay 3.0000 -clock [get_clocks {gclk_div2}] -add_delay [get_ports {in1}] set_input_delay 3.5000 -clock [get_clocks {gclk_div2}] -rise -max -add_delay [get_ports {in2}] set_input_delay 1.5000 -clock [get_clocks {gclk_div2}] -fall -min -add_delay [get_ports {in2}] set_output_delay 2.0000 -clock [get_clocks {gclk_mul2}] -add_delay [get_ports {out1}] set_output_delay 2.5000 -clock [get_clocks {gclk_div3}] -add_delay [get_ports {out2}] set_multicycle_path -setup\ -from [get_clocks {clk1}]\ -to [get_clocks {gclk_div2}] 3 set_false_path\ -from [get_clocks {gclk_div2}]\ -to [get_clocks {gclk_div3}] ############################################################################### # Environment ############################################################################### ############################################################################### # Design Rules ###############################################################################