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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2016 Ettus Research LLC.
#
# This is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this software; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
import unittest
from tinydb import TinyDB, Query
from usrptest.flowgraphs import phasealignment_fg
from usrptest.functions import setup_phase_alignment_parser, setup_tx_phase_alignment_parser, setup_rts_phase_alignment_parser, run_test, log_level
from usrptest.labview_control import lv_control
from gnuradio.uhd.uhd_app import UHDApp
import logging
import sys
import numpy as np
import argparse
import time
import copy
class gr_usrp_test(unittest.TestCase):
def __init__(self, methodName='runTest', args=None):
super(gr_usrp_test, self).__init__(methodName)
self.args = args
class qa_phasealignment(gr_usrp_test):
def setUp(self):
time.sleep(15) #Wait for devices to settle, just in case
if self.args.lv_host is not None:
self.siggen = lv_control.vst_siggen(self.args.lv_host,
self.args.lv_basepath,
self.args.lv_vst_name)
self.switch = lv_control.executive_switch(self.args.lv_host,
self.args.lv_basepath,
self.args.lv_switch_name)
self.siggen.set_freq(self.args.freq + self.args.tx_offset)
self.switch.connect_ports(
*self.args.lv_switch_ports.strip().split(','))
self.uhd_app = UHDApp(args=self.args)
self.log = logging.getLogger("test_phasealignment")
self.tb = phasealignment_fg.phasealignment_fg(self.uhd_app)
self.db = TinyDB('phase_db.json')
def tearDown(self):
self.uhd_app = None
self.tb = None
if args.lv_host is not None:
self.siggen.disconnect()
self.switch.disconnect_all()
def test_001(self):
self.tb.start()
time.sleep(2)
results = run_test(
self.tb,
self.args.runs) # dict key:dev, value: dict{dphase:[],stddev:[]}
time.sleep(1)
#self.tb.stop()
#self.tb.wait()
self.time_stamp = time.strftime('%Y%m%d%H%M')
self.passed = True
for result in results:
fdev = result['first']
sdev = result['second']
self.log.info('Comparing values for phase difference between {} and {}'.
format(fdev, sdev))
dphase_list = result['avg']
dev_list = result['stddev']
dphase = np.average(dphase_list)
dev = np.average(dev_list)
ref_meas = get_reference_meas(self.db, fdev, sdev, self.args.freq)
for dphase_i in dphase_list:
passed = True
if abs(dphase_i - dphase) > self.args.dphi and passed:
self.log.info(
'\t dPhase of a measurement_run differs from average dhpase. dphase_run: {}, dphase_avg: {}'.
format(dphase_i, dphase))
passed = False
if dev > self.args.phasedev:
self.log.info('\t dPhase deviates during measurement. stddev: {}'.
format(dev))
passed = False
if ref_meas:
if abs(ref_meas['dphase'] - dphase) > self.args.dphi:
self.log.info(
'\t dPhase differs from reference measurement. Now: {}, reference: {}'.
format(dphase, ref_meas['dphase']))
if not passed:
self.passed = False
else:
self.db.insert({
'dev1': fdev,
'dev2': sdev,
'timestamp': self.time_stamp,
'dphase': dphase,
'dphase_dev': dev,
'freq': self.args.freq
})
self.tb.stop()
self.tb.wait()
self.assertTrue(self.passed)
def get_previous_meas(db, dev1, dev2, freq):
meas = Query()
results = db.search((meas.dev1 == dev1) & (meas.dev2 == dev2) & (meas.freq
== freq))
prev_result = dict()
if results:
prev_result = results[0]
for result in results:
if result['timestamp'] > prev_result['timestamp']:
prev_result = result
return prev_result
def get_reference_meas(db, dev1, dev2, freq):
meas = Query()
results = db.search((meas.dev1 == dev1) & (meas.dev2 == dev2) & (meas.freq
== freq))
ref_result = dict()
if results:
ref_result = results[0]
for result in results:
if result['timestamp'] < ref_result['timestamp']:
ref_result = result
return ref_result
if __name__ == '__main__':
# parse all arguments
parser = argparse.ArgumentParser(conflict_handler='resolve')
parser = setup_phase_alignment_parser(parser)
parser = setup_tx_phase_alignment_parser(parser)
parser = setup_rts_phase_alignment_parser(parser)
logging.basicConfig(stream=sys.stdout)
UHDApp.setup_argparser(parser=parser)
args = parser.parse_args()
logging.getLogger("test_phasealignment").setLevel(log_level(args.log_level))
freqlist = args.freqlist.strip().split(',')
def make_suite(testcase_class, freqlist):
testloader = unittest.TestLoader()
testnames = testloader.getTestCaseNames(testcase_class)
suite = unittest.TestSuite()
for name in testnames:
for freq in freqlist:
test_args = copy.deepcopy(args)
test_args.freq = float(freq)
suite.addTest(testcase_class(name, args=test_args))
return suite
# Add tests.
alltests = unittest.TestSuite()
alltests.addTest(make_suite(qa_phasealignment, freqlist))
result = unittest.TextTestRunner(verbosity=2).run(alltests) # Run tests.
sys.exit(not result.wasSuccessful())
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