/
calibrate.py
executable file
·178 lines (144 loc) · 5.78 KB
/
calibrate.py
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#!/usr/bin/env python3
import os
import os.path as osp
from guidata.qt import QtGui
from guidata.qt import QtCore
from guidata.qt.QtGui import QMainWindow, QMessageBox, QSplitter, QListWidget, QSpinBox
from guidata.qt.QtGui import QFont, QDesktopWidget, QFileDialog, QProgressBar
from guidata.qt.QtCore import QSettings, QThread, QTimer, QObject
from guidata.configtools import get_icon
from guidata.qthelpers import create_action, add_actions, get_std_icon
from guidata.utils import update_dataset
from guidata.qt.QtCore import (QSize, QT_VERSION_STR, PYQT_VERSION_STR, Qt,
Signal, pyqtSignal)
from guiqwt.config import _
import serial
import sys
import numpy as np
import getopt
import time
from BG7 import BG7
APP_NAME = _("Network Analyser Calibration")
VERS = '0.0.1'
class Cal(QMainWindow):
def __init__(self, start_freq, bandwidth, numpts, bg7dev, mdev, max_cycle_count=5, atten_step=2):
QMainWindow.__init__(self)
self.setWindowIcon(get_icon('python.png'))
self.setWindowTitle(APP_NAME + ' ' + VERS + ' Running on ' + bg7dev + ' & ' + mdev)
dt = QDesktopWidget()
print(dt.numScreens(), dt.screenGeometry())
sz = dt.screenGeometry()
self.resize(QSize(sz.width()*6/10, 256))
# Welcome message in statusbar:
status = self.statusBar()
status.showMessage(_("Welcome to the NetworkAnalyser Calibration application!"), 5000)
self.prog = QProgressBar(self)
self.prog.setMaximumHeight(32)
self.mainwidget = self.prog
self.prog.show()
self.bg7 = BG7(start_freq, bandwidth, numpts, sport=bg7dev)
self.reset_data()
self.fp_micro = serial.Serial(mdev, 115200, timeout=4)
self.bg7.measurement_progress.connect(self.measurement_progress)
self.bg7.measurement_complete.connect(self.measurement_complete)
self.fname = 'cal_' + str(start_freq) + '_' + str(bandwidth) + '_' + str(numpts) + '.pkl'
self.max_cycle_count = max_cycle_count
self.max_atten_val = 62
self.atten_val = 0
self.atten_step = atten_step
self.update_atten()
self.count_data = 0
self.show()
self.bg7.start()
print('done BG7 start')
def reset_data(self):
self.raw_data = {}
self.raw_data['Latest'] = {}
self.raw_data['Mean'] = {}
self.raw_data['Logged'] = self.bg7.log_mode
def measurement_progress(self, val):
print('progress', val)
self.prog.setValue(int(val))
def measurement_complete(self, data, start_freq, step_size, num_samples):
print('cback', start_freq, step_size, num_samples)
#data, start_freq, step_size, num_samples = cback_data
if data is not None:
if 'Cal Data' in list(self.raw_data.keys()):
self.raw_data['Latest']['data'] = data[:] - self.raw_data['Cal Data']['data']
else:
self.raw_data['Latest']['data'] = data[:]
self.raw_data['Latest']['freqs'] = (np.arange(num_samples) * step_size) + start_freq
self.raw_data['Latest']['freq_units'] = 'MHz'
if self.raw_data['Latest']['freqs'][num_samples/2] > 1e9:
self.raw_data['Latest']['freqs'] /= 1e9
self.raw_data['Latest']['freq_units'] = 'GHz'
else:
self.raw_data['Latest']['freqs'] /= 1e6
if self.count_data == 0:
self.raw_data['Mean'][str(self.atten_val)] = self.raw_data['Latest']['data'] * 1.0
else:
self.raw_data['Mean'][str(self.atten_val)] = (((self.raw_data['Mean'][str(self.atten_val)] * self.count_data) +
self.raw_data['Latest']['data']) / (self.count_data + 1.0))
self.count_data += 1
while self.fp_micro.inWaiting() > 0:
print(self.fp_micro.read())
if self.count_data == self.max_cycle_count:
print('Atten', self.atten_val)
self.atten_val += self.atten_step
if self.atten_val > self.max_atten_val:
fp = open(self.fname, 'wb')
cPickle.dump(self.raw_data, fp)
fp.close()
sys.exit(0)
self.update_atten()
self.count_data = 0
self.bg7.start()
print('done BG7 start')
def update_atten(self):
print('Setting Atten', self.atten_val)
self.fp_micro.write(str(self.atten_val) + '\n')
time.sleep(1)
while self.fp_micro.inWaiting() > 0:
print('Read micro', self.fp_micro.read())
print('Done')
def usage():
print('calibrate.py [options]')
#print '-r/--reset Reset the defaults'
print('-s/--start_freq <freq> Set the start frequency')
print('-b/--bandwidth <freq> Set the bandwidth')
print('-n/--numpts <number> Set the number of points in the sweep')
print('-d/--device <device> Use BG7 device <device>, default /dev/ttyUSB0')
print('-M/--micro <device> Use teensy device <device>, default /dev/ttyUSB1')
return
if __name__ == '__main__':
from guidata import qapplication
try:
optlist,args = getopt.getopt(sys.argv[1:], 'rs:b:n:md:',
['reset', 'start_freq=', 'bandwidth=', 'numpts=',
'max_hold', 'device='])
except getopt.GetoptError as err:
print(err)
usage()
sys.exit(2)
reset = False
start_freq = None
bandwidth = None
numpts = 6000
bg7dev = '/dev/ttyUSB0'
mdev = '/dev/ttyACM0'
for o,a in optlist:
if o in ('-r', '--reset'):
reset = True
elif o in ('-s', '--start_freq'):
start_freq = float(a)
elif o in ('-b', '--bandwidth'):
bandwidth = float(a)
elif o in ('-n', '--numpts'):
numpts = int(a)
elif o in ('-d', '--device'):
bg7dev = a[:]
elif o in ('-M', '--micro'):
mdev = a[:]
app = qapplication()
c = Cal(start_freq, bandwidth, numpts, bg7dev, mdev)
app.exec_()