def callback_update_data():
# Tornado async coroutine to update rawdata
if ser.inWaiting():
intensities = CCD_protocol_parser.read_data(ser)
new_data = dict()
new_data['intensities'] = intensities
new_data['rawdata_x'] = rawdata_x
new_data['raman_spec_x'] = calibrate_model(rawdata_x)
waveform_data_source.data = new_data
def callback_sample_signal_button():
global user_SAMPLE_INTERVAL_IN_SECONDS
global user_SIGNAL_SAMPLE_SIZE
global ser
# # stop current jobs
# doc.add_next_tick_callback(callback_stop_button)
# set integration time
ser.write(
CCD_protocol_parser.to_set_integration_time_command(
user_SAMPLE_INTERVAL_IN_SECONDS, 's'))
# prepare a new list to store data
global signal_data_list
signal_data_list = list()
# check counter status, start to collect data
global signal_sample_counter
signal_sample_counter = user_SIGNAL_SAMPLE_SIZE
doc.add_periodic_callback(callback_collect_signal_data_average, 10)
def callback_open_serial_port():
global ser
global user_serial_port
global user_baud_rate
# --- Serial port related
# open serial port
if raman_configs.IS_TESTING:
ser = fake_serial.FakeSerial()
else:
ser = serial.Serial(user_serial_port, user_baud_rate, timeout=1)
# --- configure CCD to it's default settings
# default integration time
ser.write(
CCD_protocol_parser.to_set_integration_time_command(
raman_configs.DEFAULT_CCD_INTEGRATION_INTERVAL,
raman_configs.DEFAULT_CCD_INTEGRATION_UNIT))
def callback_collect_signal_data_average():
global signal_sample_counter
global signal_data_list
global signal_data_averaged_dict
if signal_sample_counter <= 0:
doc.remove_periodic_callback(callback_collect_signal_data_average)
sampling_signal_div.text = raman_languages.TEXT__SIGNAL_FINISHED_SAMPLING
signal_data_averaged_dict = CCD_utils.average_over_samples(
signal_data_list)
waveform_data_source.data = signal_data_averaged_dict
if ser.inWaiting():
intensities = CCD_protocol_parser.read_data(ser)
new_data = dict()
new_data['intensities'] = intensities
new_data['rawdata_x'] = rawdata_x
new_data['raman_spec_x'] = calibrate_model(rawdata_x)
waveform_data_source.data = new_data
signal_data_list.append(new_data)
sampling_signal_div.text = raman_languages.TEXT__SAMPLING_SIGNAL + \
": {signal_sample_counter}".format(
signal_sample_counter=signal_sample_counter)
signal_sample_counter = signal_sample_counter - 1
def callback_set_integration_time_button():
global user_CCD_integration_interval, user_CCD_integration_unit
ser.write(
CCD_protocol_parser.to_set_integration_time_command(
user_CCD_integration_interval, user_CCD_integration_unit))