Design Compiler再了解(一)

dcsh mode vs. Tcl mode

dcsh mode script

/* myscript */

target_library = {mylib.db}

link_library = {“*”, mylib.db}

read -f db TOP.db

current_design TOP

link

period = 10.0

create_clock -per period \

find(port, “CLK”) -name CLK

set_input_delay 5 -clock CLK \

all_inputs() - find(port CLK)

include timing_exceptions.scr

compile

Tcl mode script

# myscript

set target_library “mylib.db”
set link_library “* mylib.db”

read_db TOP.db
current_design TOP
link

set period 10.0
create_clock -per $period \
[get_port “CLK”] -name CLK

set_input_delay 5 -clock CLK \
[remove_from_collection \
[all_inputs] [get_port “CLK”]]

source timing_exceptions.tcl

compile