def runTest(self):
globals.init_openram("config_20_{0}".format(OPTS.tech_name))
# we will manually run lvs/drc
OPTS.check_lvsdrc = False
import sram
import lib
debug.info(
1, "Testing timing for sample 2 bit, 16 words SRAM with 1 bank")
s = sram.sram(word_size=2,
num_words=OPTS.config.num_words,
num_banks=OPTS.config.num_banks,
name="sram_2_16_1_{0}".format(OPTS.tech_name))
OPTS.check_lvsdrc = True
tempspice = OPTS.openram_temp + "temp.sp"
s.sp_write(tempspice)
filename = s.name + ".lib"
libname = OPTS.openram_temp + filename
lib.lib(libname, s, tempspice)
# let's diff the result with a golden model
golden = "{0}/golden/{1}".format(
os.path.dirname(os.path.realpath(__file__)), filename)
# Randomly decided 10% difference between spice simulators is ok.
self.assertEqual(isapproxdiff(libname, golden, 0.10), True)
os.system("rm {0}".format(libname))
globals.end_openram()
def runTest(self):
OPTS.analytical_delay = False
globals.init_openram("config_20_{0}".format(OPTS.tech_name))
# we will manually run lvs/drc
OPTS.check_lvsdrc = False
import sram
import lib
debug.info(
1, "Testing timing for sample 2 bit, 16 words SRAM with 1 bank")
s = sram.sram(word_size=2,
num_words=OPTS.config.num_words,
num_banks=OPTS.config.num_banks,
name="sram_2_16_1_{0}".format(OPTS.tech_name))
OPTS.check_lvsdrc = True
tempspice = OPTS.openram_temp + "temp.sp"
s.sp_write(tempspice)
filename = s.name + ".lib"
libname = OPTS.openram_temp + filename
lib.lib(libname=libname, sram=s, spfile=tempspice, use_model=False)
# let's diff the result with a golden model
golden = "{0}/golden/{1}".format(
os.path.dirname(os.path.realpath(__file__)), filename)
# 15% worked in freepdk, but scmos needed 20%
self.assertEqual(isapproxdiff(libname, golden, 0.20), True)
os.system("rm {0}".format(libname))
OPTS.analytical_delay = True
globals.end_openram()
def runTest(self):
globals.init_openram("config_20_{0}".format(OPTS.tech_name))
# we will manually run lvs/drc
OPTS.check_lvsdrc = False
OPTS.analytical_delay = False
OPTS.trim_netlist = False
import characterizer
reload(characterizer)
from characterizer import lib
import sram
debug.info(
1, "Testing timing for sample 2 bit, 16 words SRAM with 1 bank")
s = sram.sram(word_size=2,
num_words=OPTS.config.num_words,
num_banks=OPTS.config.num_banks,
name="sram_2_16_1_{0}".format(OPTS.tech_name))
OPTS.check_lvsdrc = True
tempspice = OPTS.openram_temp + "temp.sp"
s.sp_write(tempspice)
filename = s.name + ".lib"
libname = OPTS.openram_temp + filename
lib.lib(libname=libname, sram=s, spfile=tempspice, use_model=False)
# let's diff the result with a golden model
golden = "{0}/golden/{1}".format(
os.path.dirname(os.path.realpath(__file__)), filename)
self.assertEqual(isapproxdiff(libname, golden, 0.25), True)
OPTS.analytical_delay = True
OPTS.trim_netlist = True
reload(characterizer)
globals.end_openram()