OpenRAM/compiler/characterizer/__init__.py

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import os
import debug
from globals import OPTS,find_exe,get_tool
import lib
import delay
import setup_hold
debug.info(2,"Initializing characterizer...")
spice_exe = ""
if OPTS.analytical_delay:
debug.info(1,"Using analytical delay models (no characterization)")
else:
if OPTS.spice_version != "":
spice_exe=find_exe(OPTS.spice_version)
if spice_exe=="":
debug.error("{0} not found. Unable to perform characterization.".format(OPTS.spice_version),1)
else:
(choice,spice_exe) = get_tool("spice",["xa", "hspice", "ngspice", "ngspice.exe"])
OPTS.spice_version = choice
# set the input dir for spice files if using ngspice
if OPTS.spice_version == "ngspice":
os.environ["NGSPICE_INPUT_DIR"] = "{0}".format(OPTS.openram_temp)
if spice_exe == "":
debug.error("No recognizable spice version found. Unable to perform characterization.",1)