set_ccopt_property target_skew $skew_value set_ccopt_property target_insertion_delay $delay_value set_ccopt_property max_fanout $max_fanout set_ccopt_property target_max_capacitance $max_cap set_ccopt_property target_max_trans $max_tran 2.开启useful skew setOptMode -usefulSkew true setOptMode -...
首先当你的某一个tree是从clock port 来的单独只balance 自己。 你可以用 set_ccopt_property target_insertion_delay test_clk/mission_func 1.1 来控制tree长。 用set_ccopt_property insertion_delay -0.7 -pin xxx/ff_reg/CK 来控制某一个flipflop的tree长。 -0.7是再拉长700ps 比如1.1 + 0.7 = 1.8 ns...
create_route_type -name LEAF -top_preferred_layer M5 -bottom_preferred_layer M3 -preferred_routing_layer_effort medium set_ccopt_property -net_type leaftarget_max_trans 0.15 set_ccopt_property -net_type trunktarget_max_trans 0.2 set_ccopt_property -net_type toptarget_max_trans 0.2 设置好...
create_route_type -name LEAF -top_preferred_layer M5-bottom_preferred_layer M3-preferred_routing_layer_effort medium set_ccopt_property -net_typeleaftarget_max_trans0.15 set_ccopt_property -net_typetrunktarget_max_trans0.2 set_ccopt_property -net_typetoptarget_max_trans0.2 设置好这些命令,是不是...
CCMPR02065046 Target-based Opt file has parsing error with bit slice name CCMPR02064996 ccopt_design -cts stage crashes during the clustering stage CCMPR02064583 ccopt_design hangs CCMPR02064372 Detail routing initial DRC count is very high without the option '-routeEcoOnlyInLayers' CCMPR0206433...
innovus自学小技巧之gui小配置 innovus⾃学⼩技巧之gui⼩配置1. innovus同时显⽰full_name和ref_name 2.innovus的std cell显⽰的颜⾊配置成icc颜⾊⼀样 3.innovus配置快捷键成和Icc⼀样 d 删除 bindKey d "deleteSelectedFromFPlan"esc 退出当前编辑状态 bindKey esc "uiSetTool select"m ...
Legacy UI : show_ccopt_cell_name_infoCommon UI : report_cts_cell_name_info Below is a list of the strings used and their explanation: String
Doing clock tree synthesis is important, the main purposes of CTS are: 1) minimize skew; 2) meet target insertion; Skew is the difference in clock arrival time at two different registers, the CTS will minimize the skew by inserting buffers or inverters to the path of clk-registers. ...
你可以用 set_ccopt_property target_insertion_delay test_clk/mission_func 1.1 来控制tree长。 用set_ccopt_property insertion_delay -0.7 -pin xxx/ff_reg/CK 来控制某一个flipflop的tree长。 -0.7是再拉长700ps 比如1.1 + 0.7 = 1.8 ns 最后的tree长。
set_ccopt_property -net_typetrunktarget_max_trans0.2 set_ccopt_property -net_typetoptarget_max_trans0.2 设置好这些命令,是不是就大功告成了呢?显然不是,如果仅仅设置这些约束,小编相信所有人都会。实际上,设置完physical constraint仅仅是CTS准备工作的一小部分。