回复 2# zzczx
不知道是不是与我PT中写的环境属性约束有关:#environmental attributes set_min_library max.db -min_version min.db set_operating_conditions -library {min max} -analysis_type bc_wc set_wire_load_mode enclosed set_wire_load_model -name 8000000 -max set_wire_load_model -name ForQA -min set_load 1 [all_outputs] set_driving_cell -lib_cell buffd1 -pin Z -library max [remove_from_collection [all_inputs] [get_ports clk_in]] |