mirror of https://github.com/VLSIDA/OpenRAM.git
70 lines
2.2 KiB
Python
Executable File
70 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# See LICENSE for licensing information.
|
|
#
|
|
# Copyright (c) 2016-2021 Regents of the University of California and The Board
|
|
# of Regents for the Oklahoma Agricultural and Mechanical College
|
|
# (acting for and on behalf of Oklahoma State University)
|
|
# All rights reserved.
|
|
#
|
|
"""
|
|
This script will characterize an SRAM previously generated by OpenRAM given a
|
|
configuration file. Configuration option "use_pex" determines whether extracted
|
|
or generated spice is used and option "analytical_delay" determines whether
|
|
an analytical model or spice simulation is used for characterization.
|
|
"""
|
|
|
|
import sys
|
|
import datetime
|
|
from globals import *
|
|
from importlib import reload
|
|
|
|
(OPTS, args) = parse_args()
|
|
|
|
# Override the usage
|
|
USAGE = "Usage: {} [options] <config file> <cycles> <period>\nUse -h for help.\n".format(__file__)
|
|
|
|
# Check that we are left with a single configuration file as argument.
|
|
if len(args) != 3:
|
|
print(USAGE)
|
|
sys.exit(2)
|
|
|
|
# Parse argument
|
|
config_file = args[0]
|
|
cycles = int(args[1])
|
|
period = float(args[2])
|
|
|
|
# These depend on arguments, so don't load them until now.
|
|
import debug
|
|
|
|
# Parse config file and set up all the options
|
|
init_openram(config_file=config_file, is_unit_test=False)
|
|
|
|
print_banner()
|
|
|
|
# Configure the SRAM organization (duplicated from openram.py)
|
|
from sram_config import sram_config
|
|
c = sram_config(word_size=OPTS.word_size,
|
|
num_words=OPTS.num_words,
|
|
write_size=OPTS.write_size,
|
|
num_banks=OPTS.num_banks,
|
|
words_per_row=OPTS.words_per_row,
|
|
num_spare_rows=OPTS.num_spare_rows,
|
|
num_spare_cols=OPTS.num_spare_cols)
|
|
|
|
# Initialize and create the sram object
|
|
from sram import sram
|
|
s = sram(name=OPTS.output_name, sram_config=c)
|
|
|
|
# Generate stimulus and run functional simulation on the design
|
|
start_time = datetime.datetime.now()
|
|
from characterizer import functional
|
|
debug.print_raw("Functional simulation... ")
|
|
f = functional(s.s, cycles=cycles, spfile=s.get_sp_name(), period=period, output_path=OPTS.openram_temp)
|
|
(fail, error) = f.run()
|
|
debug.print_raw(error)
|
|
print_time("Functional simulation", datetime.datetime.now(), start_time)
|
|
|
|
# Delete temp files, remove the dir, etc. after success
|
|
if fail:
|
|
end_openram()
|