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tests/puf_sram: add input args to automation script

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This commit is contained in:
PeterKietzmann 2018-11-14 11:04:19 +01:00
parent 83ca890ef7
commit 0de38c2a6f
2 changed files with 26 additions and 5 deletions
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25
tests/puf_sram/tests/example_test.py
View File

@ -7,9 +7,16 @@
# General Public License v2.1. See the file LICENSE in the top level # General Public License v2.1. See the file LICENSE in the top level
# directory for more details. # directory for more details.
import argparse
import puf_sram_if import puf_sram_if
import numpy import numpy
DEFAULT_POWER_CYCLES = 500
DEFAULT_OFF_TIME = 1
DEFAULT_BAUDRATE = 115200
DEFAULT_PORT = '/dev/ttyUSB0'
DEFAULT_INFO = True
def min_erntropy(all_meas): def min_erntropy(all_meas):
p1 = numpy.zeros(len(all_meas[0])) p1 = numpy.zeros(len(all_meas[0]))
@ -32,8 +39,22 @@ def min_erntropy(all_meas):
def main_func(): def main_func():
puf_sram = puf_sram_if.PufSram() p = argparse.ArgumentParser()
seeds = puf_sram.get_seed_list(n=500, off_time=1, allow_print=True) p.add_argument("-n", "--number", type=int, default=DEFAULT_POWER_CYCLES,
help="Number of iterations, default: %s" % DEFAULT_POWER_CYCLES)
p.add_argument("-t", "--off_time", type=int, default=DEFAULT_OFF_TIME,
help="Off time, default: %s [s]" % DEFAULT_OFF_TIME)
p.add_argument("-p", "--port", type=str, default=DEFAULT_PORT,
help="Serial port, default: %s" % DEFAULT_PORT)
p.add_argument("-b", "--baudrate", type=int, default=DEFAULT_BAUDRATE,
help="Baudrate of the serial port, default: %d" % DEFAULT_BAUDRATE)
p.add_argument("-d", "--disable_output", default=DEFAULT_INFO, action='store_false',
help="Disable verbose output")
args = p.parse_args()
puf_sram = puf_sram_if.PufSram(port=args.port, baud=args.baudrate)
seeds = puf_sram.get_seed_list(n=args.number, off_time=args.off_time,
allow_print=args.disable_output)
seeds = [format(x, '0>32b') for x in seeds] seeds = [format(x, '0>32b') for x in seeds]
H_min, H_min_rel = min_erntropy(seeds) H_min, H_min_rel = min_erntropy(seeds)

6
tests/puf_sram/tests/puf_sram_if.py
View File

@ -12,12 +12,12 @@ import time
class PufSram: class PufSram:
def __init__(self, port='/dev/ttyUSB0', baud=115200): def __init__(self, port, baud):
self.__dev = serial.Serial(port, baud, timeout=10) self.__dev = serial.Serial(port, baud, timeout=10)
if(self.__dev.isOpen() is False): if(self.__dev.isOpen() is False):
self.__dev.open() self.__dev.open()
def repower(self, shutdown_time=1): def repower(self, shutdown_time):
self.__dev.setRTS(True) self.__dev.setRTS(True)
time.sleep(shutdown_time) time.sleep(shutdown_time)
self.__dev.setRTS(False) self.__dev.setRTS(False)
@ -38,7 +38,7 @@ class PufSram:
return data return data
return None return None
def get_seed_list(self, n=10000, off_time=1, allow_print=False): def get_seed_list(self, n, off_time, allow_print):
data = list() data = list()
for i in range(0, n): for i in range(0, n):
self.repower(off_time) self.repower(off_time)