all_inputs all_output all_registers all_clocks get_libs get_lib_cells get_lib_pins current_design
set_driving_cell-lib_cellINVX1M[all_inputs] 上述命令定义设计所有驱动力等价于单元库中INVX1M单元的驱动力; -lib_cell:指定驱动引脚的单元; 3.set_input_transition 通过set_input_transition 定义驱动该引脚的输入驱动端转换时间,设置的转换时间越大驱动力越小,当定义为0时,其代表输入端驱动力无穷大; 输出...
all_inputs [-level_sensitive] [-edge_triggered] [-clock clock_name] 命令会返回一个设计中所有输入端口的集合: set_input_delay -clock VCLK 0.6 -min [all_inputs] all_outputs [-level_sensitive] [-edge_triggered] [-clock clock_name] 命令会返回一个设计中所有输出端口的集合: set_load 0.5 [...
all_inputs [-level_sensitive] [-edge_triggered] [-clock clock_name] 命令会返回一个设计中所有输入端口的集合: set_input_delay -clock VCLK 0.6 -min [all_inputs] all_outputs [-level_sensitive] [-edge_triggered] [-clock clock_name] 命令会返回一个设计中所有输出端口的集合: set_load 0.5 [...
set_clock_latency 1.5 [all_clocks] set_clock_uncertainty -setup 0.3 [all_clocks] set_clock_uncertainty -hold 0.3 [all_clocks] set_clock_groups -asynchronous -group {clkA} -group {clkB} set_input_delay 2 -clock clk [remove_from_collection [all_inputs] [list $EXC_PORTS]] ...
3.input/output delay设置 set_input_delay -clock [get_clocks (clock name)] (delay time ns) [all inputs] set_output_delay -clock [get_clocks (clock name)] (delay time ns) [all outputs] 4.建立时钟组 set_clock_groups -name (group name) -asynchronous -group {(clock name) (clock name...
2、y -clock get_clocks (clock name) (delay time ns) all inputsset_output_delay -clock get_clocks (clock name) (delay time ns) all outputs4.建立时钟组set_clock_groups -name (group name) -asynchronous -group (clock name) (clock name) set_clock_groups -name (group name) -asynchronous...
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I'm trying to set the SDC constraints for the DDR input from an LTC2386 ADC and I need a bit more guidance. I've watched Intel's tutorial video at https://www.youtube.com/watch?v=GItefNliYpM so with length matched clock and data traces clock skew should be zero. H...
all_inputs, all_outputs, characterize, current_design, remove_attribute, report_constraint, reset_design set_max_fanout 给指定的输入端口或设计设定max_fanout属性。 语法: int set_max_fanout fanout_value object_list 参数: fanout_value 指定将设定给max_fanout属性的值。即,最大扇出值。