def __init__(self, master=None):
super(ULDI03, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
dio_info = self.device_info.get_dio_info()
# Find the first port that supports input, defaulting to None
# if one is not found.
self.port = next(
(port
for port in dio_info.port_info if port.supports_input_scan),
None)
if self.port is not None:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def run_example():
# By default, the example detects and displays all available devices and
# selects the first device listed. Use the dev_id_list variable to filter
# detected devices by device ID (see UL documentation for device IDs).
# If use_device_detection is set to False, the board_num variable needs to
# match the desired board number configured with Instacal.
use_device_detection = True
dev_id_list = []
board_num = 0
try:
if use_device_detection:
config_first_detected_device(board_num, dev_id_list)
daq_dev_info = DaqDeviceInfo(board_num)
if not daq_dev_info.supports_digital_io:
raise Exception('Error: The DAQ device does not support '
'digital I/O')
print('\nActive DAQ device: ',
daq_dev_info.product_name,
' (',
daq_dev_info.unique_id,
')\n',
sep='')
dio_info = daq_dev_info.get_dio_info()
# Find the first port that supports input, defaulting to None
# if one is not found.
port = next(
(port for port in dio_info.port_info if port.supports_output),
None)
if not port:
raise Exception('Error: The DAQ device does not support '
'digital output')
# If the port is configurable, configure it for output.
if port.is_port_configurable:
ul.d_config_port(board_num, port.type, DigitalIODirection.OUT)
port_value = 0xFF
print('Setting', port.type.name, 'to', port_value)
# Output the value to the port
ul.d_out(board_num, port.type, port_value)
bit_num = 0
bit_value = 0
print('Setting', port.type.name, 'bit', bit_num, 'to', bit_value)
# Output the value to the bit
ul.d_bit_out(board_num, port.type, bit_num, bit_value)
except Exception as e:
print('\n', e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
def __init__(self, master=None):
super(TimerOutStart01, self).__init__(master)
master.protocol("WM_DELETE_WINDOW", self.exit)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.first_chan_num = -1
self.last_chan_num = -1
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
counter_info = self.device_info.get_ctr_info()
# Find the first pulse counter
first_chan = next((channel for channel in counter_info.chan_info
if channel.type == CounterChannelType.CTRTMR),
None)
if first_chan is not None:
last_chan = next(
(channel for channel in reversed(counter_info.chan_info)
if channel.type == CounterChannelType.CTRTMR), None)
self.first_chan_num = first_chan.channel_num
self.last_chan_num = last_chan.channel_num
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def __init__(self, master=None):
super(ULAI15, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
self.ai_info = self.device_info.get_ai_info()
example_supported = (self.ai_info.is_supported
and self.ai_info.supports_scan
and ScanOptions.SCALEDATA in
self.ai_info.supported_scan_options)
if example_supported:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def __init__(self, master=None):
super(ULAI10, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.num_elements = 4
self.queue_loaded = False
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
self.ai_info = self.device_info.get_ai_info()
if self.ai_info.is_supported:
self.create_widgets()
self.scan_loop()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def __init__(self, board_num: int, dev_handle: ul.DaqDeviceDescriptor,
sampling: params.Sampling):
self.dev_info = DaqDeviceInfo(board_num)
self.sampling = sampling
self.ao_range = self.dev_info.get_ao_info().supported_ranges[0]
self.channels = []
self.num_ao_channels: int = self.dev_info.get_ao_info().num_chans
self.points_per_channel: int = 1024
self.buffer_size = self.num_ao_channels * self.points_per_channel
dev.Device.__init__(self, self.board_num, self.dev_info)
if MCCDAQ.__registered_board_nums.index(board_num) == -1:
ul.ignore_instacal()
ul.create_daq_device(board_num, dev_handle)
MCCDAQ.__registered_board_nums.append(board_num)
MCCDAQ.__memhandles.append(ul.win_buf_alloc(self.buffer_size))
self.memhandle = MCCDAQ.__memhandles.index(self.board_num)
if not self.memhandle:
raise Exception('MCCDAQChannel: Failed to allocate memory')
self.cdata = cast(self.memhandle, POINTER(c_ushort))
for channel_idx in range(self.num_ao_channels):
self.channels.append(MCCDAQChannel(self, channel_idx))
def __init__(self, master=None):
super(CInScan02, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.chan_num = -1
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
counter_info = self.device_info.get_ctr_info()
chan = next(
(channel for channel in counter_info.chan_info
if channel.type == CounterChannelType.CTRSCAN), None)
if chan:
self.chan_num = chan.channel_num
if self.chan_num != -1:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def __init__(self, master=None):
super(DaqInScan02, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.chan_list = []
self.chan_type_list = []
self.gain_list = []
self.num_chans = 0
self.resolution = 16
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
if self.device_info.supports_daq_input:
self.init_scan_channel_info()
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def run_example():
# By default, the example detects and displays all available devices and
# selects the first device listed. Use the dev_id_list variable to filter
# detected devices by device ID (see UL documentation for device IDs).
# If use_device_detection is set to False, the board_num variable needs to
# match the desired board number configured with Instacal.
use_device_detection = True
dev_id_list = []
board_num = 0
try:
if use_device_detection:
config_first_detected_device(board_num, dev_id_list)
daq_dev_info = DaqDeviceInfo(board_num)
if not daq_dev_info.supports_counters:
raise Exception('Error: The DAQ device does not support counters')
print('\nActive DAQ device: ',
daq_dev_info.product_name,
' (',
daq_dev_info.unique_id,
')\n',
sep='')
ctr_info = daq_dev_info.get_ctr_info()
# Find a pulse timer channel on the board
first_chan = next((channel for channel in ctr_info.chan_info
if channel.type == CounterChannelType.CTRPULSE),
None)
if not first_chan:
raise Exception('Error: The DAQ device does not support '
'pulse timers')
timer_num = first_chan.channel_num
frequency = 100
duty_cycle = 0.5
# Start the pulse timer output (optional parameters omitted)
actual_frequency, actual_duty_cycle, _ = ul.pulse_out_start(
board_num, timer_num, frequency, duty_cycle)
# Print information about the output
print('Outputting', actual_frequency, 'Hz with a duty cycle of',
actual_duty_cycle, 'to pulse timer channel', timer_num)
# Wait for 5 seconds
sleep(5)
# Stop the pulse timer output
ul.pulse_out_stop(board_num, timer_num)
print('Timer output stopped')
except Exception as e:
print('\n', e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
def run_example():
# By default, the example detects and displays all available devices and
# selects the first device listed. Use the dev_id_list variable to filter
# detected devices by device ID (see UL documentation for device IDs).
# If use_device_detection is set to False, the board_num variable needs to
# match the desired board number configured with Instacal.
use_device_detection = True
dev_id_list = []
board_num = 0
try:
if use_device_detection:
config_first_detected_device(board_num, dev_id_list)
daq_dev_info = DaqDeviceInfo(board_num)
if not daq_dev_info.supports_counters:
raise Exception('Error: The DAQ device does not support counters')
print('\nActive DAQ device: ',
daq_dev_info.product_name,
' (',
daq_dev_info.unique_id,
')\n',
sep='')
ctr_info = daq_dev_info.get_ctr_info()
# Use the first counter channel on the board (some boards start channel
# numbering at 1 instead of 0, the CtrInfo class is used here to find
# the first one).
counter_num = ctr_info.chan_info[0].channel_num
ul.c_clear(board_num, counter_num)
print('Please enter CTRL + C to terminate the process\n')
try:
while True:
try:
# Read and display the data.
counter_value = ul.c_in_32(board_num, counter_num)
print('\r Counter ',
counter_num,
':',
str(counter_value).rjust(12),
sep='',
end='')
stdout.flush()
sleep(0.1)
except (ValueError, NameError, SyntaxError):
break
except KeyboardInterrupt:
pass
except Exception as e:
print('\n', e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
def run_example():
# By default, the example detects and displays all available devices and
# selects the first device listed. Use the dev_id_list variable to filter
# detected devices by device ID (see UL documentation for device IDs).
# If use_device_detection is set to False, the board_num variable needs to
# match the desired board number configured with Instacal.
use_device_detection = True
dev_id_list = []
board_num = 0
try:
if use_device_detection:
config_first_detected_device(board_num, dev_id_list)
daq_dev_info = DaqDeviceInfo(board_num)
if not daq_dev_info.supports_analog_input:
raise Exception('Error: The DAQ device does not support '
'analog input')
print('\nActive DAQ device: ',
daq_dev_info.product_name,
' (',
daq_dev_info.unique_id,
')\n',
sep='')
ai_info = daq_dev_info.get_ai_info()
ai_range = ai_info.supported_ranges[0]
channel = 0
# Get a value from the device
if ai_info.resolution <= 16:
# Use the a_in method for devices with a resolution <= 16
value = ul.a_in(board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units(board_num, ai_range, value)
else:
# Use the a_in_32 method for devices with a resolution > 16
# (optional parameter omitted)
value = ul.a_in_32(board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units_32(board_num, ai_range, value)
# Display the raw value
print('Raw Value:', value)
# Display the engineering value
print('Engineering Value: {:.3f}'.format(eng_units_value))
except Exception as e:
print('\n', e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
def run_example():
# By default, the example detects and displays all available devices and
# selects the first device listed. Use the dev_id_list variable to filter
# detected devices by device ID (see UL documentation for device IDs).
# If use_device_detection is set to False, the board_num variable needs to
# match the desired board number configured with Instacal.
use_device_detection = True
dev_id_list = []
board_num = 0
try:
if use_device_detection:
config_first_detected_device(board_num, dev_id_list)
daq_dev_info = DaqDeviceInfo(board_num)
if not daq_dev_info.supports_analog_input:
raise Exception('Error: The DAQ device does not support '
'analog input')
print('\nActive DAQ device: ',
daq_dev_info.product_name,
' (',
daq_dev_info.unique_id,
')\n',
sep='')
ai_info = daq_dev_info.get_ai_info()
if ai_info.num_temp_chans <= 0:
raise Exception('Error: The DAQ device does not support '
'temperature input')
channel = 0
# Get the value from the device (optional parameters omitted)
value = ul.t_in(board_num, channel, TempScale.CELSIUS)
# Display the value
print('Channel', channel, 'Value (deg C):', value)
except Exception as e:
print('\n', e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
def run_example():
# By default, the example detects and displays all available devices and
# selects the first device listed. Use the dev_id_list variable to filter
# detected devices by device ID (see UL documentation for device IDs).
# If use_device_detection is set to False, the board_num variable needs to
# match the desired board number configured with Instacal.
use_device_detection = True
dev_id_list = []
board_num = 0
try:
if use_device_detection:
config_first_detected_device(board_num, dev_id_list)
daq_dev_info = DaqDeviceInfo(board_num)
if not daq_dev_info.supports_analog_output:
raise Exception('Error: The DAQ device does not support '
'analog output')
print('\nActive DAQ device: ',
daq_dev_info.product_name,
' (',
daq_dev_info.unique_id,
')\n',
sep='')
ao_info = daq_dev_info.get_ao_info()
ao_range = ao_info.supported_ranges[0]
channel = 0
data_value = ao_range.range_max / 2
print('Outputting', data_value, 'Volts to channel', channel)
# Send the value to the device (optional parameter omitted)
ul.v_out(board_num, channel, ao_range, data_value)
except Exception as e:
print('\n', e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
def __init__(self, master=None):
super(DaqSetSetpoints01, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.chan_list = []
self.chan_type_list = []
self.gain_list = []
self.num_chans = 4
self.setpoint_flags_list = []
self.setpoint_output_list = []
self.limit_a_list = []
self.limit_b_list = []
self.output_1_list = []
self.output_2_list = []
self.output_mask_1_list = []
self.output_mask_2_list = []
self.setpoint_count = 3
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
daqi_info = self.device_info.get_daqi_info()
if (self.device_info.supports_daq_input
and daqi_info.supports_setpoints):
self.init_scan_channel_info()
self.init_setpoints()
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def update_board_info(self):
info_text = ""
try:
# Raises exception is board_num is not valid
self.device_info = DaqDeviceInfo(self.board_num)
info_text += self.get_ad_info()
info_text += self.get_temperature_info()
info_text += self.get_da_info()
info_text += self.get_digital_info()
info_text += self.get_counter_info()
info_text += self.get_expansion_info()
# Remove the last "newline" character
info_text = info_text[:-1]
except ULError:
info_text = (
"No board found at board number " + str(self.board_num) +
".\nRun InstaCal to add or remove boards before running this "
+ "program.")
finally:
self.info_label["text"] = info_text
def list_installed(self):
installed_text = ""
for board_num in range(0, self.max_board_num):
try:
device_info = DaqDeviceInfo(board_num)
installed_text += ("Board #" + str(board_num) + " = " +
device_info.product_name + "\n")
except ULError:
pass
self.info_groupbox["text"] = "Installed Devices"
self.info_text.delete(0.0, tk.END)
self.info_text.insert(0.0, installed_text[:-1])
def __init__(self, master):
super(ULTI02, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
# BOARD NUMBER IS DEFINED IN TKINTER AT START OF TEST
use_device_detection = False
self.running = False
# Device Detection not used in this test
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
self.ai_info = self.device_info.get_ai_info()
if self.ai_info.temp_supported:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def __init__(self, master):
super(ULAI01, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.running = False
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
if self.device_info.supports_analog_input:
self.ai_info = self.device_info.get_ai_info()
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def __init__(self, master=None):
super(ULDO02, self).__init__(master)
master.protocol("WM_DELETE_WINDOW", self.exit)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
dio_info = self.device_info.get_dio_info()
# Find the first port that supports output, defaulting to None
# if one is not found.
self.port = next((port for port in dio_info.port_info
if port.supports_output), None)
if self.port is not None:
# If the port is configurable, configure it for output
if self.port.is_port_configurable:
try:
ul.d_config_port(self.board_num, self.port.type,
DigitalIODirection.OUT)
except ULError as e:
show_ul_error(e)
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
class ULTI02(UIExample):
def __init__(self, master):
super(ULTI02, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
# BOARD NUMBER IS DEFINED IN TKINTER AT START OF TEST
use_device_detection = False
self.running = False
# Device Detection not used in this test
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
self.ai_info = self.device_info.get_ai_info()
if self.ai_info.temp_supported:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
# Main update loop that gets repeated every 100ms while the test is running
def update_values(self):
try:
# Get the values from the device (optional parameters omitted)
# Temp scale set to NOSCALE and conversion will be done via lookup table within this program
err_code, data_array = ul.t_in_scan(self.board_num, 0, 7,
TempScale.NOSCALE)
# create array of temperature and resistances to be logged, data_array is raw resistance
data_example = ""
data_example_temps = ""
data_temp_display = numpy.array(data_array)
data_array = numpy.around(data_array, 3)
temp_array = interp_resist_to_temp_np1000(data_array)
for x in range(0, 8):
data_example += str(data_array[x]) + ';'
data_example_temps += str(
numpy.around(interp_resist_to_temp_np1000(data_array[x]),
2)) + ';'
# Check err_code for OUTOFRANGE or OPENCONNECTION. All other
# error codes will raise a ULError and are checked by the except
# clause.
# if err_code == ErrorCode.OUTOFRANGE:
# self.warning_label["text"] = (
# "A thermocouple input is out of range.")
# elif err_code == ErrorCode.OPENCONNECTION:
# self.warning_label["text"] = (
# "A thermocouple input has an open connection.")
# else:
# self.warning_label["text"] = ""
self.display_values(temp_array)
# creates variables for time format in log
current_date_and_time = datetime.datetime.now()
current_date_and_time_string = current_date_and_time.strftime(
"%Y-%m-%d %H:%M:%S")
current_time = time.time()
# start_logging Boolean is used to only log at 00 or 30 seconds of the minute
# this is to have synched timings between two programs running independantly on the same machine
sub_time = current_time - self.start_time
seconds = datetime.datetime.now().strftime("%S")
if seconds == '30' or seconds == '00':
start_logging = True
else:
start_logging = False
# Log at 00 or 30 seconds every minute (twice a minute)
if sub_time >= 10 and start_logging:
self.start_time = time.time()
self.last_logged_time = datetime.datetime.now().strftime(
"%Y-%m-%d %H:%M:%S")
# create log of temperature for the specified time
try:
with open(self.filefullname, "a") as myfile:
myfile.write(current_date_and_time_string + ';')
myfile.write(data_example_temps + data_example + '\n')
myfile.close()
except:
pass
# Call this method again until the stop button is pressed (or an
# error occurs)
# This is the display in the command prompt
message_timing = current_time - self.start_time_timing
if message_timing <= 1 and self.verify == 1:
os.system('cls')
print('Test Running')
print('Test Name =', self.test_name)
print('Last logged data:', self.last_logged_time)
for x in range(0, 8):
print(
round(
interp_resist_to_temp_np1000(data_temp_display[x]),
2), '°C', "\t", self.channel_list[x])
self.verify = 2
elif message_timing >= 1 and message_timing <= 2 and self.verify == 2:
os.system('cls')
print('Test Running.')
print('Test Name =', self.test_name)
print('Last logged data:', self.last_logged_time)
for x in range(0, 8):
print(
round(
interp_resist_to_temp_np1000(data_temp_display[x]),
2), '°C', "\t", self.channel_list[x])
self.verify = 3
elif message_timing >= 2 and message_timing <= 3 and self.verify == 3:
os.system('cls')
print('Test Running..')
print('Test Name =', self.test_name)
print('Last logged data:', self.last_logged_time)
for x in range(0, 8):
print(
round(
interp_resist_to_temp_np1000(data_temp_display[x]),
2), '°C', "\t", self.channel_list[x])
self.verify = 4
elif message_timing >= 3 and message_timing <= 4 and self.verify == 4:
os.system('cls')
print('Test Running...')
print('Test Name =', self.test_name)
print('Last logged data:', self.last_logged_time)
for x in range(0, 8):
print(
round(
interp_resist_to_temp_np1000(data_temp_display[x]),
2), '°C', "\t", self.channel_list[x])
self.verify = 5
elif message_timing > 4 and self.verify == 5:
self.start_time_timing = time.time()
self.verify = 1
else:
pass
# self-updating graph for easy visualisation
# keep running after 100 ms if self.running is True
if self.running:
self.after(100, self.update_values)
except ULError as e:
self.stop()
show_ul_error(e)
def display_values(self, array):
low_chan = 0
high_chan = 7
for chan_num in range(low_chan, high_chan + 1):
index = chan_num - low_chan
self.data_labels[index]["text"] = '{:.3f}'.format(
array[index]) + "\n"
def stop(self):
self.running = False
self.start_button["command"] = self.start
self.start_button["text"] = "Start"
# self.low_channel_entry["state"] = tk.NORMAL
# self.high_channel_entry["state"] = tk.NORMAL
def start(self):
os.system('cls')
self.running = True
self.start_button["command"] = self.stop
self.start_button["text"] = "Stop"
# self.low_channel_entry["state"] = tk.DISABLED
# self.high_channel_entry["state"] = tk.DISABLED
self.test_name_entry["state"] = tk.DISABLED
self.board_number_entry["state"] = tk.DISABLED
# self.low_chan = self.get_low_channel_num()
# self.high_chan = self.get_high_channel_num()
self.test_name = self.get_test_name()
self.channel0 = self.get_channel0()
self.channel1 = self.get_channel1()
self.channel2 = self.get_channel2()
self.channel3 = self.get_channel3()
self.channel4 = self.get_channel4()
self.channel5 = self.get_channel5()
self.channel6 = self.get_channel6()
self.channel7 = self.get_channel7()
self.channel_list = [
self.channel0, self.channel1, self.channel2, self.channel3,
self.channel4, self.channel5, self.channel6, self.channel7
]
self.board_num = self.get_board_num()
self.recreate_data_frame()
self.start_time = time.time()
self.start_time_timing = time.time()
self.last_logged_time = 'Nothing logged yet'
self.verify = 1
self.inc = 0
self.create_log_file()
self.update_values()
def create_log_file(self):
# creates log_file when starting program
if not os.path.exists('logs'):
os.makedirs('logs')
current_date_and_time = datetime.datetime.now()
current_date_and_time_filename = current_date_and_time.strftime(
"%Y_%m_%d-%H%M%S") + '_'
dir = 'logs\\'
filename = current_date_and_time_filename
filemission = self.test_name
file_ext = '.txt'
self.filefullname = dir + filename + filemission + file_ext
file = open(self.filefullname, 'a')
# def get_low_channel_num(self):
# try:
# return int(self.low_channel_entry.get())
# except ValueError:
# return 0
# def get_high_channel_num(self):
# try:
# return int(self.high_channel_entry.get())
# except ValueError:
# return 0
def get_test_name(self):
try:
return self.test_name_entry.get("1.0", 'end-1c')
except ValueError:
return 0
def get_channel0(self):
try:
return self.channel0_name_entry.get("1.0", 'end-1c')
except ValueError:
return 0
def get_channel1(self):
try:
return self.channel1_name_entry.get("1.0", 'end-1c')
except ValueError:
return 0
def get_channel2(self):
try:
return self.channel2_name_entry.get("1.0", 'end-1c')
except ValueError:
return 0
def get_channel3(self):
try:
return self.channel3_name_entry.get("1.0", 'end-1c')
except ValueError:
return 0
def get_channel4(self):
try:
return self.channel4_name_entry.get("1.0", 'end-1c')
except ValueError:
return 0
def get_channel5(self):
try:
return self.channel5_name_entry.get("1.0", 'end-1c')
except ValueError:
return 0
def get_channel6(self):
try:
return self.channel6_name_entry.get("1.0", 'end-1c')
except ValueError:
return 0
def get_channel7(self):
try:
return self.channel7_name_entry.get("1.0", 'end-1c')
except ValueError:
return 0
def get_board_num(self):
try:
return int(self.board_number_entry.get())
except ValueError:
return 0
def validate_channel_entry(self, p):
if p == '':
return True
try:
value = int(p)
if value < 0 or value > self.ai_info.num_temp_chans - 1:
return False
except ValueError:
return False
return True
def recreate_data_frame(self):
low_chan = 0
high_chan = 7
channels_per_row = 4
new_data_frame = tk.Frame(self.results_group)
self.data_labels = []
row = 0
column = 0
# Add the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
chan_label = tk.Label(new_data_frame, justify=tk.LEFT, padx=3)
chan_label["text"] = "Channel " + str(chan_num)
chan_label.grid(row=row, column=column)
data_label = tk.Label(new_data_frame, justify=tk.LEFT, padx=3)
data_label.grid(row=row + 1, column=column)
self.data_labels.append(data_label)
column += 1
if column >= channels_per_row:
row += 2
column = 0
self.data_frame.destroy()
self.data_frame = new_data_frame
self.data_frame.pack(side=tk.TOP)
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num) +
": " + self.device_info.product_name +
" (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
channel_vcmd = self.register(self.validate_channel_entry)
curr_row = 0
if self.ai_info.num_temp_chans > 1:
# # Defining low channel entry
# low_channel_entry_label = tk.Label(main_frame)
# low_channel_entry_label["text"] = "Low Channel Number:"
# low_channel_entry_label.grid(
# row=curr_row, column=0, sticky=tk.W)
# self.low_channel_entry = tk.Spinbox(
# main_frame, from_=0,
# to=max(self.ai_info.num_temp_chans - 1, 0),
# validate='key', validatecommand=(channel_vcmd, '%P'))
# self.low_channel_entry.grid(
# row=curr_row, column=1, sticky=tk.W)
# # Defining high channel entry
# curr_row += 1
# high_channel_entry_label = tk.Label(main_frame)
# high_channel_entry_label["text"] = "High Channel Number:"
# high_channel_entry_label.grid(
# row=curr_row, column=0, sticky=tk.W)
# self.high_channel_entry = tk.Spinbox(
# main_frame, from_=0,
# to=max(self.ai_info.num_temp_chans - 1, 0),
# validate='key', validatecommand=(channel_vcmd, '%P'))
# self.high_channel_entry.grid(
# row=curr_row, column=1, sticky=tk.W)
# Defining test name entry
curr_row += 1
test_name_entry_label = tk.Label(main_frame)
test_name_entry_label["text"] = "Test Name"
test_name_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.test_name_entry = tk.Text(main_frame, height=1, width=30)
self.test_name_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.test_name_entry.insert(tk.END, 'Test Name')
# Defining channel #0 name
curr_row += 1
channel0_name_entry_label = tk.Label(main_frame)
channel0_name_entry_label["text"] = "Channel 0"
channel0_name_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.channel0_name_entry = tk.Text(main_frame, height=1, width=30)
self.channel0_name_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.channel0_name_entry.insert(tk.END, 'Channel 0')
# Defining channel #1 name
curr_row += 1
channel1_name_entry_label = tk.Label(main_frame)
channel1_name_entry_label["text"] = "Channel 1"
channel1_name_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.channel1_name_entry = tk.Text(main_frame, height=1, width=30)
self.channel1_name_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.channel1_name_entry.insert(tk.END, 'Channel 1')
# Defining channel #2 name
curr_row += 1
channel2_name_entry_label = tk.Label(main_frame)
channel2_name_entry_label["text"] = "Channel 2"
channel2_name_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.channel2_name_entry = tk.Text(main_frame, height=1, width=30)
self.channel2_name_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.channel2_name_entry.insert(tk.END, 'Channel 2')
# Defining channel #3 name
curr_row += 1
channel3_name_entry_label = tk.Label(main_frame)
channel3_name_entry_label["text"] = "Channel 3"
channel3_name_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.channel3_name_entry = tk.Text(main_frame, height=1, width=30)
self.channel3_name_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.channel3_name_entry.insert(tk.END, 'Channel 3')
# Defining channel #4 name
curr_row += 1
channel4_name_entry_label = tk.Label(main_frame)
channel4_name_entry_label["text"] = "Channel 4"
channel4_name_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.channel4_name_entry = tk.Text(main_frame, height=1, width=30)
self.channel4_name_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.channel4_name_entry.insert(tk.END, 'Channel 4')
# Defining channel #5 name
curr_row += 1
channel5_name_entry_label = tk.Label(main_frame)
channel5_name_entry_label["text"] = "Channel 5"
channel5_name_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.channel5_name_entry = tk.Text(main_frame, height=1, width=30)
self.channel5_name_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.channel5_name_entry.insert(tk.END, 'Channel 5')
# Defining channel #6 name
curr_row += 1
channel6_name_entry_label = tk.Label(main_frame)
channel6_name_entry_label["text"] = "Channel 6"
channel6_name_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.channel6_name_entry = tk.Text(main_frame, height=1, width=30)
self.channel6_name_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.channel6_name_entry.insert(tk.END, 'Channel 6')
# Defining channel #7 name
curr_row += 1
channel7_name_entry_label = tk.Label(main_frame)
channel7_name_entry_label["text"] = "Channel 7"
channel7_name_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.channel7_name_entry = tk.Text(main_frame, height=1, width=30)
self.channel7_name_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.channel7_name_entry.insert(tk.END, 'Channel 7')
# Defining board number entry
curr_row += 1
board_number_entry_label = tk.Label(main_frame)
board_number_entry_label["text"] = "Board number:"
board_number_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.board_number_entry = tk.Spinbox(main_frame,
from_=0,
to=4,
validate='key',
validatecommand=(channel_vcmd,
'%P'))
self.board_number_entry.grid(row=curr_row, column=1, sticky=tk.W)
# Default Values
# initial_value = min(self.ai_info.num_temp_chans - 1, 7)
# self.high_channel_entry.delete(0, tk.END)
# self.high_channel_entry.insert(0, str(initial_value))
self.results_group = tk.LabelFrame(self, text="Results")
self.results_group.pack(fill=tk.X, anchor=tk.NW, padx=3, pady=3)
self.data_frame = tk.Frame(self.results_group)
self.data_frame.pack(side=tk.TOP)
self.warning_label = tk.Label(self.results_group, fg="red")
self.warning_label.pack(side=tk.BOTTOM)
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
self.start_button = tk.Button(button_frame)
self.start_button["text"] = "Start"
self.start_button["command"] = self.start
self.start_button.grid(row=0, column=0, padx=3, pady=3)
quit_button = tk.Button(button_frame)
quit_button["text"] = "Quit"
quit_button["command"] = self.master.destroy
quit_button.grid(row=0, column=1, padx=3, pady=3)
class ULAI12(UIExample):
def __init__(self, master=None):
super(ULAI12, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
self.ai_info = self.device_info.get_ai_info()
if self.ai_info.is_supported and self.ai_info.supports_gain_queue:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def start_scan(self):
low_chan = self.get_low_channel_num()
high_chan = self.get_high_channel_num()
if low_chan > high_chan:
messagebox.showerror(
"Error",
"Low Channel Number must be greater than or equal to High "
"Channel Number")
self.start_button["state"] = tk.NORMAL
return
rate = 0 # Ignored for EXTCLOCK scans
points_per_channel = 10
num_channels = high_chan - low_chan + 1
total_count = points_per_channel * num_channels
range_ = self.ai_info.supported_ranges[0]
# Allocate a buffer for the scan
if self.ai_info.resolution <= 16:
# Use the win_buf_alloc method for devices with a resolution <=
# 16
memhandle = ul.win_buf_alloc(total_count)
else:
# Use the win_buf_alloc_32 method for devices with a resolution
# > 16
memhandle = ul.win_buf_alloc_32(total_count)
# Check if the buffer was successfully allocated
if not memhandle:
messagebox.showerror("Error", "Failed to allocate memory")
self.start_button["state"] = tk.NORMAL
return
try:
# Run the scan
ul.a_in_scan(self.board_num, low_chan, high_chan, total_count,
rate, range_, memhandle, ScanOptions.EXTCLOCK)
# Convert the memhandle to a ctypes array
# Note: the ctypes array will only be valid until win_buf_free
# is called.
# A copy of the buffer can be created using win_buf_to_array
# or win_buf_to_array_32 before the memory is freed. The copy
# can be used at any time.
if self.ai_info.resolution <= 16:
# Use the memhandle_as_ctypes_array method for devices with
# a resolution <= 16
array = cast(memhandle, POINTER(c_ushort))
else:
# Use the memhandle_as_ctypes_array_32 method for devices
# with a resolution > 16
array = cast(memhandle, POINTER(c_ulong))
# Display the values
self.display_values(array, range_, total_count, low_chan,
high_chan)
except ULError as e:
show_ul_error(e)
finally:
# Free the allocated memory
ul.win_buf_free(memhandle)
self.start_button["state"] = tk.NORMAL
def display_values(self, array, range_, total_count, low_chan, high_chan):
new_data_frame = tk.Frame(self.results_group)
channel_text = []
# Add the headers
for chan_num in range(low_chan, high_chan + 1):
channel_text.append("Channel " + str(chan_num) + "\n")
chan_count = high_chan - low_chan + 1
# Add (up to) the first 10 values for each channel to the text
chan_num = low_chan
for data_index in range(0, min(chan_count * 10, total_count)):
if self.ai_info.resolution <= 16:
eng_value = ul.to_eng_units(self.board_num, range_,
array[data_index])
else:
eng_value = ul.to_eng_units_32(self.board_num, range_,
array[data_index])
channel_text[chan_num -
low_chan] += '{:.3f}'.format(eng_value) + "\n"
if chan_num == high_chan:
chan_num = low_chan
else:
chan_num += 1
# Add the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
chan_label = tk.Label(new_data_frame, justify=tk.LEFT, padx=3)
chan_label["text"] = channel_text[chan_num - low_chan]
chan_label.grid(row=0, column=chan_num - low_chan)
self.data_frame.destroy()
self.data_frame = new_data_frame
self.data_frame.grid()
def start(self):
self.start_button["state"] = tk.DISABLED
self.start_scan()
def get_low_channel_num(self):
try:
return int(self.low_channel_entry.get())
except ValueError:
return 0
def get_high_channel_num(self):
try:
return int(self.high_channel_entry.get())
except ValueError:
return 0
def validate_channel_entry(self, p):
if p == '':
return True
try:
value = int(p)
if value < 0 or value > self.ai_info.num_chans - 1:
return False
except ValueError:
return False
return True
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num) +
": " + self.device_info.product_name +
" (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
curr_row = 0
if self.ai_info.num_chans > 1:
channel_vcmd = self.register(self.validate_channel_entry)
low_channel_entry_label = tk.Label(main_frame)
low_channel_entry_label["text"] = "Low Channel Number:"
low_channel_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.low_channel_entry = tk.Spinbox(
main_frame,
from_=0,
to=max(self.ai_info.num_chans - 1, 0),
validate='key',
validatecommand=(channel_vcmd, '%P'))
self.low_channel_entry.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
high_channel_entry_label = tk.Label(main_frame)
high_channel_entry_label["text"] = "High Channel Number:"
high_channel_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.high_channel_entry = tk.Spinbox(
main_frame,
from_=0,
validate='key',
to=max(self.ai_info.num_chans - 1, 0),
validatecommand=(channel_vcmd, '%P'))
self.high_channel_entry.grid(row=curr_row, column=1, sticky=tk.W)
initial_value = min(self.ai_info.num_chans - 1, 3)
self.high_channel_entry.delete(0, tk.END)
self.high_channel_entry.insert(0, str(initial_value))
curr_row += 1
self.results_group = tk.LabelFrame(self,
text="Results",
padx=3,
pady=3)
self.results_group.pack(fill=tk.X, anchor=tk.NW, padx=3, pady=3)
self.data_frame = tk.Frame(self.results_group)
self.data_frame.grid()
curr_row += 1
warning_label = tk.Label(main_frame,
justify=tk.LEFT,
wraplength=400,
fg="red")
warning_label["text"] = (
"Warning: Clicking Start will freeze the UI until the scan "
"is complete. Ensure that a clock signal is connected to "
"the external clock pin on your device. Real-world "
"applications should run the a_in_scan method on a "
"separate thread or use the BACKGROUND option.")
warning_label.grid(row=curr_row, columnspan=2, sticky=tk.W)
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
self.start_button = tk.Button(button_frame)
self.start_button["text"] = "Start"
self.start_button["command"] = self.start
self.start_button.grid(row=0, column=0, padx=3, pady=3)
quit_button = tk.Button(button_frame)
quit_button["text"] = "Quit"
quit_button["command"] = self.master.destroy
quit_button.grid(row=0, column=1, padx=3, pady=3)
class ULAO02(UIExample):
def __init__(self, master=None):
super(ULAO02, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
self.ao_info = self.device_info.get_ao_info()
if self.ao_info.is_supported and self.ao_info.supports_scan:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def send_data(self):
# Build the data array
num_chans = min(self.ao_info.num_chans, 4)
num_points = num_chans
ao_range = self.ao_info.supported_ranges[0]
memhandle = ul.win_buf_alloc(num_points)
# Check if the buffer was successfully allocated
if not memhandle:
messagebox.showerror("Error", "Failed to allocate memory")
self.send_data["state"] = tk.NORMAL
return
try:
data_array = cast(memhandle, POINTER(c_ushort))
full_scale_count = (2**self.ao_info.resolution) - 1
value_step = full_scale_count / (num_chans + 1)
for point_num in range(0, num_points):
raw_value = int(value_step * (point_num + 1))
data_array[point_num] = raw_value
self.raw_data_labels[point_num]["text"] = str(raw_value)
# ul.to_eng_units cannot be used here, as it uses the analog
# input resolution. Instead, do the conversion on our own.
volts = self.ao_to_eng_units(raw_value, ao_range,
self.ao_info.resolution)
self.volts_labels[point_num]["text"] = ('{:.3f}'.format(volts))
ul.a_out_scan(self.board_num, 0, num_chans - 1, num_points, 100,
ao_range, memhandle, 0)
except ULError as e:
show_ul_error(e)
finally:
ul.win_buf_free(memhandle)
def ao_to_eng_units(self, raw_value, ao_range, resolution):
full_scale_volts = ao_range.range_max - ao_range.range_min
full_scale_count = (2**resolution) - 1
return ((full_scale_volts / full_scale_count) * raw_value +
ao_range.range_min)
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num) +
": " + self.device_info.product_name +
" (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
data_frame = tk.Frame(main_frame)
data_frame.pack(fill=tk.X, anchor=tk.NW)
raw_data_label = tk.Label(data_frame)
raw_data_label["text"] = "Raw Data"
raw_data_label.grid(row=1, sticky=tk.W)
volts_label = tk.Label(data_frame)
volts_label["text"] = "Volts"
volts_label.grid(row=2, sticky=tk.W)
self.raw_data_labels = []
self.volts_labels = []
for chan_num in range(0, min(self.ao_info.num_chans, 4)):
name_label = tk.Label(data_frame)
name_label["text"] = "Channel " + str(chan_num)
name_label.grid(row=0, column=chan_num + 1, sticky=tk.W)
raw_data_label = tk.Label(data_frame)
raw_data_label.grid(row=1, column=chan_num + 1, sticky=tk.W)
self.raw_data_labels.append(raw_data_label)
volts_label = tk.Label(data_frame)
volts_label.grid(row=2, column=chan_num + 1, sticky=tk.W)
self.volts_labels.append(volts_label)
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
send_data_button = tk.Button(button_frame)
send_data_button["text"] = "Start"
send_data_button["command"] = self.send_data
send_data_button.grid(row=0, column=0, padx=3, pady=3)
quit_button = tk.Button(button_frame)
quit_button["text"] = "Quit"
quit_button["command"] = self.master.destroy
quit_button.grid(row=0, column=1, padx=3, pady=3)
class ULAIO01(UIExample):
def __init__(self, master=None):
super(ULAIO01, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
self.ai_info = self.device_info.get_ai_info()
self.ao_info = self.device_info.get_ao_info()
example_supported = (self.ai_info.is_supported
and self.ai_info.supports_scan
and self.ao_info.is_supported
and self.ao_info.supports_scan)
if example_supported:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def start_input_scan(self):
self.input_low_chan = self.get_input_low_channel_num()
self.input_high_chan = self.get_input_high_channel_num()
self.num_input_chans = self.input_high_chan - self.input_low_chan + 1
if self.input_low_chan > self.input_high_chan:
messagebox.showerror(
"Error",
"Low Channel Number must be greater than or equal to High "
"Channel Number")
self.set_input_ui_idle_state()
return
rate = 100
points_per_channel = 1000
total_count = points_per_channel * self.num_input_chans
range_ = self.ai_info.supported_ranges[0]
scan_options = ScanOptions.BACKGROUND | ScanOptions.CONTINUOUS
# Allocate a buffer for the scan
if self.ai_info.resolution <= 16:
# Use the win_buf_alloc method for devices with a resolution <=
# 16
self.input_memhandle = ul.win_buf_alloc(total_count)
else:
# Use the win_buf_alloc_32 method for devices with a resolution
# > 16
self.input_memhandle = ul.win_buf_alloc_32(total_count)
if not self.input_memhandle:
messagebox.showerror("Error", "Failed to allocate memory")
self.set_input_ui_idle_state()
return
# Create the frames that will hold the data
self.recreate_input_data_frame()
try:
# Run the scan
ul.a_in_scan(self.board_num, self.input_low_chan,
self.input_high_chan, total_count, rate, range_,
self.input_memhandle, scan_options)
except ULError as e:
show_ul_error(e)
self.set_input_ui_idle_state()
return
# Convert the input_memhandle to a ctypes array
# Note: the ctypes array will no longer be valid after win_buf_free is
# called. A copy of the buffer can be created using win_buf_to_array
# or win_buf_to_array_32 before the memory is freed. The copy can
# be used at any time.
if self.ai_info.resolution <= 16:
# Use the memhandle_as_ctypes_array method for devices with a
# resolution <= 16
self.ctypes_array = cast(self.input_memhandle, POINTER(c_ushort))
else:
# Use the memhandle_as_ctypes_array_32 method for devices with a
# resolution > 16
self.ctypes_array = cast(self.input_memhandle, POINTER(c_ulong))
# Start updating the displayed values
self.update_input_displayed_values(range_)
def update_input_displayed_values(self, range_):
# Get the status from the device
status, curr_count, curr_index = ul.get_status(self.board_num,
FunctionType.AIFUNCTION)
# Display the status info
self.update_input_status_labels(status, curr_count, curr_index)
# Display the values
self.display_input_values(range_, curr_index, curr_count)
# Call this method again until the stop_input button is pressed
if status == Status.RUNNING:
self.after(100, self.update_input_displayed_values, range_)
else:
# Free the allocated memory
ul.win_buf_free(self.input_memhandle)
self.set_input_ui_idle_state()
def update_input_status_labels(self, status, curr_count, curr_index):
if status == Status.IDLE:
self.input_status_label["text"] = "Idle"
else:
self.input_status_label["text"] = "Running"
self.input_index_label["text"] = str(curr_index)
self.input_count_label["text"] = str(curr_count)
def display_input_values(self, range_, curr_index, curr_count):
per_channel_display_count = 10
array = self.ctypes_array
low_chan = self.input_low_chan
high_chan = self.input_high_chan
channel_text = []
# Add the headers
for chan_num in range(low_chan, high_chan + 1):
channel_text.append("Channel " + str(chan_num) + "\n")
# If no data has been gathered, don't add data to the labels
if curr_count > 1:
chan_count = high_chan - low_chan + 1
chan_num = low_chan
# curr_index points to the start_input of the last completed
# channel scan that was transferred between the board and the data
# buffer. Based on this, calculate the first index we want to
# display using subtraction.
first_index = max(curr_index - ((per_channel_display_count - 1)
* chan_count), 0)
# Add (up to) the latest 10 values for each channel to the text
for data_index in range(
first_index,
first_index + min(
chan_count * per_channel_display_count,
curr_count)):
raw_value = array[data_index]
if self.ai_info.resolution <= 16:
eng_value = ul.to_eng_units(self.board_num, range_,
raw_value)
else:
eng_value = ul.to_eng_units_32(self.board_num, range_,
raw_value)
channel_text[chan_num - low_chan] += (
'{:.3f}'.format(eng_value) + "\n")
chan_num = low_chan if chan_num == high_chan else chan_num + 1
# Update the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
chan_index = chan_num - low_chan
self.chan_labels[chan_index]["text"] = channel_text[chan_index]
def recreate_input_data_frame(self):
low_chan = self.input_low_chan
high_chan = self.input_high_chan
new_data_frame = tk.Frame(self.input_inner_data_frame)
self.chan_labels = []
# Add the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
chan_label = tk.Label(new_data_frame, justify=tk.LEFT, padx=3)
chan_label.grid(row=0, column=chan_num - low_chan)
self.chan_labels.append(chan_label)
self.data_frame.destroy()
self.data_frame = new_data_frame
self.data_frame.grid()
def exit(self):
self.stop_input()
self.stop_output()
self.master.destroy()
def start_output_scan(self):
# Build the data array
self.output_low_chan = self.get_output_low_channel_num()
self.output_high_chan = self.get_output_high_channel_num()
self.num_output_chans = (
self.output_high_chan - self.output_low_chan + 1)
if self.output_low_chan > self.output_high_chan:
messagebox.showerror(
"Error",
"Low Channel Number must be greater than or equal to High "
"Channel Number")
self.set_output_ui_idle_state()
return
points_per_channel = 1000
rate = 1000
num_points = self.num_output_chans * points_per_channel
scan_options = (ScanOptions.BACKGROUND |
ScanOptions.CONTINUOUS | ScanOptions.SCALEDATA)
ao_range = self.ao_info.supported_ranges[0]
self.output_memhandle = ul.scaled_win_buf_alloc(num_points)
# Check if the buffer was successfully allocated
if not self.output_memhandle:
messagebox.showerror("Error", "Failed to allocate memory")
self.output_start_button["state"] = tk.NORMAL
return
try:
data_array = cast(self.output_memhandle, POINTER(c_double))
frequencies = self.add_output_example_data(
data_array, ao_range, self.num_output_chans, rate,
points_per_channel)
self.recreate_freq_frame()
self.display_output_signal_info(frequencies)
ul.a_out_scan(
self.board_num, self.output_low_chan, self.output_high_chan,
num_points, rate, ao_range, self.output_memhandle,
scan_options)
# Start updating the displayed values
self.update_output_displayed_values()
except ULError as e:
show_ul_error(e)
self.set_output_ui_idle_state()
return
def display_output_signal_info(self, frequencies):
for channel_num in range(
self.output_low_chan, self.output_high_chan + 1):
curr_row = channel_num - self.output_low_chan
self.freq_labels[curr_row]["text"] = str(
frequencies[curr_row]) + " Hz"
def add_output_example_data(self, data_array, ao_range, num_chans,
rate, points_per_channel):
# Calculate frequencies that will work well with the size of the array
frequencies = []
for channel_num in range(0, num_chans):
frequencies.append(
(channel_num + 1) / (points_per_channel / rate))
# Calculate an amplitude and y-offset for the signal
# to fill the analog output range
amplitude = (ao_range.range_max - ao_range.range_min) / 2
y_offset = (amplitude + ao_range.range_min) / 2
# Fill the array with sine wave data at the calculated frequencies.
# Note that since we are using the SCALEDATA option, the values
# added to data_array are the actual voltage values that the device
# will output
data_index = 0
for point_num in range(0, points_per_channel):
for channel_num in range(0, num_chans):
freq = frequencies[channel_num]
value = amplitude * math.sin(
2 * math.pi * freq * point_num / rate) + y_offset
data_array[data_index] = value
data_index += 1
return frequencies
def update_output_displayed_values(self):
# Get the status from the device
status, curr_count, curr_index = ul.get_status(self.board_num,
FunctionType.AOFUNCTION)
# Display the status info
self.update_output_status_labels(status, curr_count, curr_index)
# Call this method again until the stop button is pressed
if status == Status.RUNNING:
self.after(100, self.update_output_displayed_values)
else:
# Free the allocated memory
ul.win_buf_free(self.output_memhandle)
self.set_output_ui_idle_state()
def update_output_status_labels(self, status, curr_count, curr_index):
if status == Status.IDLE:
self.output_status_label["text"] = "Idle"
else:
self.output_status_label["text"] = "Running"
self.output_index_label["text"] = str(curr_index)
self.output_count_label["text"] = str(curr_count)
def recreate_freq_frame(self):
low_chan = self.output_low_chan
high_chan = self.output_high_chan
new_freq_frame = tk.Frame(self.freq_inner_frame)
curr_row = 0
self.freq_labels = []
for chan_num in range(low_chan, high_chan + 1):
curr_row += 1
channel_label = tk.Label(new_freq_frame)
channel_label["text"] = (
"Channel " + str(chan_num) + " Frequency:")
channel_label.grid(row=curr_row, column=0, sticky=tk.W)
freq_label = tk.Label(new_freq_frame)
freq_label.grid(row=curr_row, column=1, sticky=tk.W)
self.freq_labels.append(freq_label)
self.freq_frame.destroy()
self.freq_frame = new_freq_frame
self.freq_frame.grid()
def stop_output(self):
ul.stop_background(self.board_num, FunctionType.AOFUNCTION)
def set_output_ui_idle_state(self):
self.output_high_channel_entry["state"] = tk.NORMAL
self.output_low_channel_entry["state"] = tk.NORMAL
self.output_start_button["command"] = self.start_output
self.output_start_button["text"] = "Start Analog Output"
def start_output(self):
self.output_high_channel_entry["state"] = tk.DISABLED
self.output_low_channel_entry["state"] = tk.DISABLED
self.output_start_button["command"] = self.stop_output
self.output_start_button["text"] = "Stop Analog Output"
self.start_output_scan()
def stop_input(self):
ul.stop_background(self.board_num, FunctionType.AIFUNCTION)
def set_input_ui_idle_state(self):
self.input_high_channel_entry["state"] = tk.NORMAL
self.input_low_channel_entry["state"] = tk.NORMAL
self.input_start_button["command"] = self.start_input
self.input_start_button["text"] = "Start Analog Input"
def start_input(self):
self.input_high_channel_entry["state"] = tk.DISABLED
self.input_low_channel_entry["state"] = tk.DISABLED
self.input_start_button["command"] = self.stop_input
self.input_start_button["text"] = "Stop Analog Input"
self.start_input_scan()
def get_input_low_channel_num(self):
if self.ai_info.num_chans == 1:
return 0
try:
return int(self.input_low_channel_entry.get())
except ValueError:
return 0
def get_input_high_channel_num(self):
if self.ai_info.num_chans == 1:
return 0
try:
return int(self.input_high_channel_entry.get())
except ValueError:
return 0
def get_output_low_channel_num(self):
if self.ao_info.num_chans == 1:
return 0
try:
return int(self.output_low_channel_entry.get())
except ValueError:
return 0
def get_output_high_channel_num(self):
if self.ao_info.num_chans == 1:
return 0
try:
return int(self.output_high_channel_entry.get())
except ValueError:
return 0
def validate_channel_entry(self, p):
if p == '':
return True
try:
value = int(p)
if value < 0 or value > self.ai_info.num_chans - 1:
return False
except ValueError:
return False
return True
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num)
+ ": " + self.device_info.product_name
+ " (" + self.device_info.unique_id + ")")
channel_vcmd = self.register(self.validate_channel_entry)
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
input_groupbox = tk.LabelFrame(main_frame, text="Analog Input")
input_groupbox.pack(side=tk.LEFT, anchor=tk.NW)
if self.ai_info.num_chans > 1:
curr_row = 0
input_channels_frame = tk.Frame(input_groupbox)
input_channels_frame.pack(fill=tk.X, anchor=tk.NW)
input_low_channel_entry_label = tk.Label(
input_channels_frame)
input_low_channel_entry_label["text"] = (
"Low Channel Number:")
input_low_channel_entry_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.input_low_channel_entry = tk.Spinbox(
input_channels_frame, from_=0,
to=max(self.ai_info.num_chans - 1, 0),
validate='key', validatecommand=(channel_vcmd, '%P'))
self.input_low_channel_entry.grid(
row=curr_row, column=1, sticky=tk.W)
curr_row += 1
input_high_channel_entry_label = tk.Label(
input_channels_frame)
input_high_channel_entry_label["text"] = (
"High Channel Number:")
input_high_channel_entry_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.input_high_channel_entry = tk.Spinbox(
input_channels_frame, from_=0,
to=max(self.ai_info.num_chans - 1, 0),
validate='key', validatecommand=(channel_vcmd, '%P'))
self.input_high_channel_entry.grid(
row=curr_row, column=1, sticky=tk.W)
initial_value = min(self.ai_info.num_chans - 1, 3)
self.input_high_channel_entry.delete(0, tk.END)
self.input_high_channel_entry.insert(0, str(initial_value))
curr_row += 1
self.input_start_button = tk.Button(input_groupbox)
self.input_start_button["text"] = "Start Analog Input"
self.input_start_button["command"] = self.start_input
self.input_start_button.pack(
fill=tk.X, anchor=tk.NW, padx=3, pady=3)
self.input_results_group = tk.LabelFrame(
input_groupbox, text="Results", padx=3, pady=3)
self.input_results_group.pack(
fill=tk.X, anchor=tk.NW, padx=3, pady=3)
self.input_results_group.grid_columnconfigure(1, weight=1)
curr_row = 0
input_status_left_label = tk.Label(self.input_results_group)
input_status_left_label["text"] = "Status:"
input_status_left_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.input_status_label = tk.Label(self.input_results_group)
self.input_status_label["text"] = "Idle"
self.input_status_label.grid(
row=curr_row, column=1, sticky=tk.W)
curr_row += 1
input_index_left_label = tk.Label(self.input_results_group)
input_index_left_label["text"] = "Index:"
input_index_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.input_index_label = tk.Label(self.input_results_group)
self.input_index_label["text"] = "-1"
self.input_index_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
input_count_left_label = tk.Label(self.input_results_group)
input_count_left_label["text"] = "Count:"
input_count_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.input_count_label = tk.Label(self.input_results_group)
self.input_count_label["text"] = "0"
self.input_count_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
self.input_inner_data_frame = tk.Frame(self.input_results_group)
self.input_inner_data_frame.grid(
row=curr_row, column=0, columnspan=2, sticky=tk.W)
self.data_frame = tk.Frame(self.input_inner_data_frame)
self.data_frame.grid()
output_groupbox = tk.LabelFrame(
main_frame, text="Analog Output")
output_groupbox.pack(side=tk.RIGHT, anchor=tk.NW)
if self.ao_info.num_chans > 1:
curr_row = 0
output_channels_frame = tk.Frame(output_groupbox)
output_channels_frame.pack(fill=tk.X, anchor=tk.NW)
output_low_channel_entry_label = tk.Label(
output_channels_frame)
output_low_channel_entry_label["text"] = (
"Low Channel Number:")
output_low_channel_entry_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.output_low_channel_entry = tk.Spinbox(
output_channels_frame, from_=0,
to=max(self.ao_info.num_chans - 1, 0),
validate='key', validatecommand=(channel_vcmd, '%P'))
self.output_low_channel_entry.grid(
row=curr_row, column=1, sticky=tk.W)
curr_row += 1
output_high_channel_entry_label = tk.Label(
output_channels_frame)
output_high_channel_entry_label["text"] = (
"High Channel Number:")
output_high_channel_entry_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.output_high_channel_entry = tk.Spinbox(
output_channels_frame, from_=0,
to=max(self.ao_info.num_chans - 1, 0),
validate='key', validatecommand=(channel_vcmd, '%P'))
self.output_high_channel_entry.grid(
row=curr_row, column=1, sticky=tk.W)
initial_value = min(self.ao_info.num_chans - 1, 3)
self.output_high_channel_entry.delete(0, tk.END)
self.output_high_channel_entry.insert(0, str(initial_value))
self.output_start_button = tk.Button(output_groupbox)
self.output_start_button["text"] = "Start Analog Output"
self.output_start_button["command"] = self.start_output
self.output_start_button.pack(
fill=tk.X, anchor=tk.NW, padx=3, pady=3)
output_scan_info_group = tk.LabelFrame(
output_groupbox, text="Scan Information", padx=3, pady=3)
output_scan_info_group.pack(
fill=tk.X, anchor=tk.NW, padx=3, pady=3)
output_scan_info_group.grid_columnconfigure(1, weight=1)
curr_row = 0
output_status_left_label = tk.Label(output_scan_info_group)
output_status_left_label["text"] = "Status:"
output_status_left_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.output_status_label = tk.Label(output_scan_info_group)
self.output_status_label["text"] = "Idle"
self.output_status_label.grid(
row=curr_row, column=1, sticky=tk.W)
curr_row += 1
output_index_left_label = tk.Label(output_scan_info_group)
output_index_left_label["text"] = "Index:"
output_index_left_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.output_index_label = tk.Label(output_scan_info_group)
self.output_index_label["text"] = "-1"
self.output_index_label.grid(
row=curr_row, column=1, sticky=tk.W)
curr_row += 1
output_count_left_label = tk.Label(output_scan_info_group)
output_count_left_label["text"] = "Count:"
output_count_left_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.output_count_label = tk.Label(output_scan_info_group)
self.output_count_label["text"] = "0"
self.output_count_label.grid(
row=curr_row, column=1, sticky=tk.W)
curr_row += 1
self.freq_inner_frame = tk.Frame(output_scan_info_group)
self.freq_inner_frame.grid(
row=curr_row, column=0, columnspan=2, sticky=tk.W)
self.freq_frame = tk.Frame(self.freq_inner_frame)
self.freq_frame.grid()
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
self.quit_button = tk.Button(button_frame)
self.quit_button["text"] = "Quit"
self.quit_button["command"] = self.exit
self.quit_button.grid(row=0, column=1, padx=3, pady=3)
class ULAI01(UIExample):
def __init__(self, master):
super(ULAI01, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.running = False
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
if self.device_info.supports_analog_input:
self.ai_info = self.device_info.get_ai_info()
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def update_value(self):
channel = self.get_channel_num()
ai_range = self.ai_info.supported_ranges[0]
try:
# Get a value from the device
if self.ai_info.resolution <= 16:
# Use the a_in method for devices with a resolution <= 16
value = ul.a_in(self.board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units(self.board_num, ai_range,
value)
else:
# Use the a_in_32 method for devices with a resolution > 16
# (optional parameter omitted)
value = ul.a_in_32(self.board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units_32(self.board_num, ai_range,
value)
# Display the raw value
self.value_label["text"] = str(value)
# Display the engineering value
self.eng_value_label["text"] = '{:.3f}'.format(eng_units_value)
# Call this method again until the stop button is pressed (or an
# error occurs)
if self.running:
self.after(100, self.update_value)
except ULError as e:
self.stop()
show_ul_error(e)
def stop(self):
self.running = False
self.start_button["command"] = self.start
self.start_button["text"] = "Start"
def start(self):
self.running = True
self.start_button["command"] = self.stop
self.start_button["text"] = "Stop"
self.update_value()
def get_channel_num(self):
if self.ai_info.num_chans == 1:
return 0
try:
return int(self.channel_entry.get())
except ValueError:
return 0
def validate_channel_entry(self, p):
if p == '':
return True
try:
value = int(p)
if value < 0 or value > self.ai_info.num_chans - 1:
return False
except ValueError:
return False
return True
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num)
+ ": " + self.device_info.product_name
+ " (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
curr_row = 0
if self.ai_info.num_chans > 1:
channel_vcmd = self.register(self.validate_channel_entry)
channel_entry_label = tk.Label(main_frame)
channel_entry_label["text"] = "Channel Number:"
channel_entry_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.channel_entry = tk.Spinbox(
main_frame, from_=0,
to=max(self.ai_info.num_chans - 1, 0),
validate='key', validatecommand=(channel_vcmd, '%P'))
self.channel_entry.grid(
row=curr_row, column=1, sticky=tk.W)
curr_row += 1
raw_value_left_label = tk.Label(main_frame)
raw_value_left_label["text"] = "Value read from selected channel:"
raw_value_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.value_label = tk.Label(main_frame)
self.value_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
eng_value_left_label = tk.Label(main_frame)
eng_value_left_label["text"] = "Value converted to voltage:"
eng_value_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.eng_value_label = tk.Label(main_frame)
self.eng_value_label.grid(row=curr_row, column=1, sticky=tk.W)
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
self.start_button = tk.Button(button_frame)
self.start_button["text"] = "Start"
self.start_button["command"] = self.start
self.start_button.grid(row=0, column=0, padx=3, pady=3)
quit_button = tk.Button(button_frame)
quit_button["text"] = "Quit"
quit_button["command"] = self.master.destroy
quit_button.grid(row=0, column=1, padx=3, pady=3)
class TimerOutStart01(UIExample):
def __init__(self, master=None):
super(TimerOutStart01, self).__init__(master)
master.protocol("WM_DELETE_WINDOW", self.exit)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.first_chan_num = -1
self.last_chan_num = -1
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
counter_info = self.device_info.get_ctr_info()
# Find the first pulse counter
first_chan = next((channel for channel in counter_info.chan_info
if channel.type == CounterChannelType.CTRTMR),
None)
if first_chan is not None:
last_chan = next(
(channel for channel in reversed(counter_info.chan_info)
if channel.type == CounterChannelType.CTRTMR), None)
self.first_chan_num = first_chan.channel_num
self.last_chan_num = last_chan.channel_num
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def update_output(self):
try:
timer_num = self.get_channel_num()
frequency = self.get_frequency()
actual_freq = ul.timer_out_start(self.board_num, timer_num,
frequency)
self.update_actual_values(actual_freq)
except ULError as e:
show_ul_error(e)
def exit(self):
# Stop all the timers at exit
if self.first_chan_num != -1:
for chan_num in range(self.first_chan_num, self.last_chan_num + 1):
try:
ul.timer_out_stop(self.board_num, chan_num)
except ULError as e:
show_ul_error(e)
self.master.destroy()
def update_actual_values(self, actual_freq):
self.actual_freq_label["text"] = str(actual_freq)
def get_frequency(self):
try:
return float(self.freq_entry.get())
except ValueError:
return 100000
def get_channel_num(self):
if self.last_chan_num == self.first_chan_num:
return self.last_chan_num
try:
return int(self.channel_entry.get())
except ValueError:
return 0
def validate_channel_entry(self, p):
if p == '':
return True
try:
value = int(p)
if value < self.first_chan_num or value > self.last_chan_num:
return False
except ValueError:
return False
return True
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num) +
": " + self.device_info.product_name +
" (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
channel_vcmd = self.register(self.validate_channel_entry)
float_vcmd = self.register(validate_float_entry)
curr_row = 0
if self.last_chan_num != self.first_chan_num:
channel_entry_label = tk.Label(main_frame)
channel_entry_label["text"] = "Channel Number:"
channel_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.channel_entry = tk.Spinbox(main_frame,
from_=self.first_chan_num,
to=self.last_chan_num,
validate='key',
validatecommand=(channel_vcmd,
'%P'))
self.channel_entry.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
freq_label = tk.Label(main_frame)
freq_label["text"] = "Frequency:"
freq_label.grid(row=curr_row, column=0, sticky=tk.W)
self.freq_entry = tk.Entry(main_frame,
validate='key',
validatecommand=(float_vcmd, '%P'))
self.freq_entry.grid(row=curr_row, column=1, sticky=tk.W)
self.freq_entry.insert(0, "100000")
curr_row += 1
update_button = tk.Button(main_frame)
update_button["text"] = "Update"
update_button["command"] = self.update_output
update_button.grid(row=curr_row,
column=0,
columnspan=2,
padx=3,
pady=3)
curr_row += 1
actual_freq_left_label = tk.Label(main_frame)
actual_freq_left_label["text"] = "Actual Frequency:"
actual_freq_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.actual_freq_label = tk.Label(main_frame)
self.actual_freq_label.grid(row=curr_row, column=1, sticky=tk.W)
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
quit_button = tk.Button(button_frame)
quit_button["text"] = "Quit"
quit_button["command"] = self.exit
quit_button.grid(row=0, column=1, padx=3, pady=3)
class DaqSetSetpoints01(UIExample):
def __init__(self, master=None):
super(DaqSetSetpoints01, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.chan_list = []
self.chan_type_list = []
self.gain_list = []
self.num_chans = 4
self.setpoint_flags_list = []
self.setpoint_output_list = []
self.limit_a_list = []
self.limit_b_list = []
self.output_1_list = []
self.output_2_list = []
self.output_mask_1_list = []
self.output_mask_2_list = []
self.setpoint_count = 3
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
daqi_info = self.device_info.get_daqi_info()
if (self.device_info.supports_daq_input
and daqi_info.supports_setpoints):
self.init_scan_channel_info()
self.init_setpoints()
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def init_scan_channel_info(self):
# Add analog input channels
self.chan_list.append(0)
self.chan_type_list.append(ChannelType.ANALOG +
ChannelType.SETPOINT_ENABLE)
self.gain_list.append(ULRange.BIP10VOLTS)
self.chan_list.append(1)
self.chan_type_list.append(ChannelType.ANALOG +
ChannelType.SETPOINT_ENABLE)
self.gain_list.append(ULRange.BIP10VOLTS)
# Add a digital input channel
self.chan_list.append(DigitalPortType.FIRSTPORTA)
self.chan_type_list.append(ChannelType.DIGITAL8 +
ChannelType.SETPOINT_ENABLE)
self.gain_list.append(ULRange.NOTUSED)
# Add a setpoint status channel
self.chan_list.append(0)
self.chan_type_list.append(ChannelType.SETPOINTSTATUS)
self.gain_list.append(ULRange.NOTUSED)
def init_setpoints(self):
# Setpoint configurations for ChanArray[0] (CH0)
self.setpoint_flags_list.append(SetpointFlag.LESSTHAN_LIMITA +
SetpointFlag.UPDATEON_TRUEANDFALSE)
# Setpoint result outputs a value to Analog Out 0
self.setpoint_output_list.append(SetpointOutput.DAC0)
# If CH0 less than 3.0 volts apply output1, else apply output2
self.limit_a_list.append(3)
self.limit_b_list.append(0) # Ignored when LessThanLimitA flag is used
self.output_1_list.append(5) # Output 5.0 volts on Analog Out 0
self.output_2_list.append(-5) # Output -5.0 volts on Analog Out 0
self.output_mask_1_list.append(0) # Ignored for DAC0 output type
self.output_mask_2_list.append(0) # Ignored for DAC0 output type
# Setpoint configurations for ChanArray[1] (CH1)
self.setpoint_flags_list.append(SetpointFlag.GREATERTHAN_LIMITB +
SetpointFlag.UPDATEON_TRUEANDFALSE)
# Setpoint result outputs a value to digital port C
self.setpoint_output_list.append(SetpointOutput.FIRSTPORTC)
# Ignored when GreaterThanLimitB flag is used
self.limit_a_list.append(0)
# If CH1 greater than 2.0 volts apply output1
self.limit_b_list.append(2)
# Output a bit pattern of 01010101 to digital port C
self.output_1_list.append(0x55)
# Output a bit pattern of 10101010 to digital port C
self.output_2_list.append(0xAA)
# Output the value of 'out1' on low nibble only
self.output_mask_1_list.append(0x0F)
# Output the value of 'out2' on low nibble only
self.output_mask_2_list.append(0x0F)
# Setpoint configurations for ChanArray[2] (FIRSTPORTA)
self.setpoint_flags_list.append(SetpointFlag.EQUAL_LIMITA
| SetpointFlag.UPDATEON_TRUEONLY)
# Setpoint result outputs a value to Timer 0
self.setpoint_output_list.append(SetpointOutput.TMR0)
# If FirstPortA equal 00001111 bit pattern apply output1
self.limit_a_list.append(0x0F)
self.limit_b_list.append(2) # Ignored when EqualLimitA flag is used
self.output_1_list.append(100) # Output a 100Hz square wave on Timer 0
# Ignored when SF_UPDATEON_TRUEONLY flag is used
self.output_2_list.append(0)
self.output_mask_1_list.append(0) # Ignored for 'TMR0' output type
self.output_mask_2_list.append(0) # Ignored for 'TMR0' output type
def start_scan(self):
rate = 100
points_per_channel = 100
total_count = points_per_channel * self.num_chans
scan_options = ScanOptions.BACKGROUND | ScanOptions.CONTINUOUS
# Allocate a buffer for the scan
self.memhandle = ul.win_buf_alloc(total_count)
# Check if the buffer was successfully allocated
if not self.memhandle:
messagebox.showerror("Error", "Failed to allocate memory")
self.start_button["state"] = tk.NORMAL
return
try:
# Configure the setpoints
ul.daq_set_setpoints(self.board_num, self.limit_a_list,
self.limit_b_list, self.setpoint_flags_list,
self.setpoint_output_list, self.output_1_list,
self.output_2_list, self.output_mask_1_list,
self.output_mask_2_list, self.setpoint_count)
# Run the scan
ul.daq_in_scan(self.board_num, self.chan_list, self.chan_type_list,
self.gain_list, self.num_chans, rate, 0,
total_count, self.memhandle, scan_options)
# Cast the memhandle to a ctypes pointer
# Note: the ctypes array will only be valid until win_buf_free
# is called.
# A copy of the buffer can be created using win_buf_to_array
# before the memory is freed. The copy can be used at any time.
self.array = cast(self.memhandle, POINTER(c_ushort))
except ULError as e:
# Free the allocated memory
ul.win_buf_free(self.memhandle)
show_ul_error(e)
return
# Start updating the displayed values
self.update_displayed_values()
def update_displayed_values(self):
# Get the status from the device
status, curr_count, curr_index = ul.get_status(
self.board_num, FunctionType.DAQIFUNCTION)
# Display the status info
self.update_status_labels(status, curr_count, curr_index)
# Display the values
self.display_values(curr_index, curr_count)
# Call this method again until the stop button is pressed
if status == Status.RUNNING:
self.after(100, self.update_displayed_values)
else:
# Free the allocated memory
ul.win_buf_free(self.memhandle)
self.set_ui_idle_state()
def update_status_labels(self, status, curr_count, curr_index):
if status == Status.IDLE:
self.setpoint_status_label["text"] = "Idle"
else:
self.setpoint_status_label["text"] = "Running"
self.index_label["text"] = str(curr_index)
self.count_label["text"] = str(curr_count)
def display_values(self, curr_index, curr_count):
array = self.array
# If no data has been gathered, don't add data to the labels
if curr_count > 1:
# Convert the CH0 value to volts and display it
chan_0_eng_value = ul.to_eng_units(self.board_num,
self.gain_list[0],
array[curr_index])
self.chan_0_label["text"] = '{:.3f}'.format(
chan_0_eng_value) + " Volts"
# Convert the CH1 value to volts and display it
chan_1_eng_value = ul.to_eng_units(self.board_num,
self.gain_list[0],
array[curr_index + 1])
self.chan_1_label["text"] = '{:.3f}'.format(
chan_1_eng_value) + " Volts"
# Display the digital port value as hex
self.digital_label["text"] = '0x' + \
'{:0<2X}'.format(array[curr_index + 2])
# Display the setpoint status as hex
self.setpoint_status_label["text"] = '0x' + \
'{:0<4X}'.format(array[curr_index + 3])
def stop(self):
ul.stop_background(self.board_num, FunctionType.DAQIFUNCTION)
def set_ui_idle_state(self):
self.start_button["command"] = self.start
self.start_button["text"] = "Start"
def start(self):
self.start_button["command"] = self.stop
self.start_button["text"] = "Stop"
self.start_scan()
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num) +
": " + self.device_info.product_name +
" (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
curr_row = 0
chan_0_left_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
chan_0_left_label["text"] = "Channel 0:"
chan_0_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.chan_0_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
self.chan_0_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
chan_1_left_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
chan_1_left_label["text"] = "Channel 1:"
chan_1_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.chan_1_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
self.chan_1_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
digital_left_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
digital_left_label["text"] = "FIRSTPORTA:"
digital_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.digital_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
self.digital_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
setpoint_status_left_label = tk.Label(main_frame,
justify=tk.LEFT,
padx=3)
setpoint_status_left_label["text"] = "Status:"
setpoint_status_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.setpoint_status_label = tk.Label(main_frame,
justify=tk.LEFT,
padx=3)
self.setpoint_status_label["text"] = "Idle"
self.setpoint_status_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
index_left_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
index_left_label["text"] = "Index:"
index_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.index_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
self.index_label["text"] = "-1"
self.index_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
count_left_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
count_left_label["text"] = "Count:"
count_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.count_label = tk.Label(main_frame, justify=tk.LEFT, padx=3)
self.count_label["text"] = "0"
self.count_label.grid(row=curr_row, column=1, sticky=tk.W)
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
self.start_button = tk.Button(button_frame)
self.start_button["text"] = "Start"
self.start_button["command"] = self.start
self.start_button.grid(row=0, column=0, padx=3, pady=3)
quit_button = tk.Button(button_frame)
quit_button["text"] = "Quit"
quit_button["command"] = self.master.destroy
quit_button.grid(row=0, column=1, padx=3, pady=3)
class ULAI03(UIExample):
def __init__(self, master=None):
super(ULAI03, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
self.ai_info = self.device_info.get_ai_info()
if self.ai_info.is_supported and self.ai_info.supports_scan:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets()
def start_scan(self):
self.low_chan = self.get_low_channel_num()
self.high_chan = self.get_high_channel_num()
self.num_chans = self.high_chan - self.low_chan + 1
if self.low_chan > self.high_chan:
messagebox.showerror(
"Error",
"Low Channel Number must be greater than or equal to High "
"Channel Number")
self.set_ui_idle_state()
return
rate = 100
points_per_channel = 1000
total_count = points_per_channel * self.num_chans
ai_range = self.ai_info.supported_ranges[0]
# Allocate a buffer for the scan
if self.ai_info.resolution <= 16:
# Use the win_buf_alloc method for devices with a resolution <=
# 16
self.memhandle = ul.win_buf_alloc(total_count)
# Convert the memhandle to a ctypes array
# Use the memhandle_as_ctypes_array method for devices with a
# resolution <= 16
self.ctypes_array = cast(self.memhandle, POINTER(c_ushort))
else:
# Use the win_buf_alloc_32 method for devices with a resolution
# > 16
self.memhandle = ul.win_buf_alloc_32(total_count)
# Use the memhandle_as_ctypes_array_32 method for devices with a
# resolution > 16
self.ctypes_array = cast(self.memhandle, POINTER(c_ulong))
# Note: the ctypes array will no longer be valid after
# win_buf_free is called.
# A copy of the buffer can be created using win_buf_to_array
# or win_buf_to_array_32 before the memory is freed. The copy
# can be used at any time.
# Check if the buffer was successfully allocated
if not self.memhandle:
messagebox.showerror("Error", "Failed to allocate memory")
self.set_ui_idle_state()
return
# Create the frames that will hold the data
self.recreate_data_frame()
try:
# Start the scan
ul.a_in_scan(self.board_num, self.low_chan, self.high_chan,
total_count, rate, ai_range, self.memhandle,
ScanOptions.BACKGROUND)
except ULError as e:
show_ul_error(e)
self.set_ui_idle_state()
return
# Start updating the displayed values
self.update_displayed_values()
def update_displayed_values(self):
# Get the status from the device
status, curr_count, curr_index = ul.get_status(self.board_num,
FunctionType.AIFUNCTION)
# Display the status info
self.update_status_labels(status, curr_count, curr_index)
# Display the values
self.display_values(curr_index, curr_count)
# Call this method again until the stop button is pressed
if status == Status.RUNNING:
self.after(100, self.update_displayed_values)
else:
# Free the allocated memory
ul.win_buf_free(self.memhandle)
# Stop the background operation (this is required even if the
# scan completes successfully)
ul.stop_background(self.board_num, FunctionType.AIFUNCTION)
self.set_ui_idle_state()
def update_status_labels(self, status, curr_count, curr_index):
if status == Status.IDLE:
self.status_label["text"] = "Idle"
else:
self.status_label["text"] = "Running"
self.index_label["text"] = str(curr_index)
self.count_label["text"] = str(curr_count)
def display_values(self, curr_index, curr_count):
per_channel_display_count = 10
array = self.ctypes_array
low_chan = self.low_chan
high_chan = self.high_chan
channel_text = []
# Add the headers
for chan_num in range(low_chan, high_chan + 1):
channel_text.append("Channel " + str(chan_num) + "\n")
# If no data has been gathered, don't add data to the labels
if curr_count > 1:
chan_count = high_chan - low_chan + 1
chan_num = low_chan
# curr_index points to the start of the last completed channel
# scan that was transferred between the board and the data
# buffer. Based on this, calculate the first index we want to
# display using subtraction.
first_index = max(curr_index - ((per_channel_display_count - 1)
* chan_count), 0)
last_index = first_index + min(chan_count
* per_channel_display_count,
curr_count)
# Add (up to) the latest 10 values for each channel to the text
for data_index in range(first_index, last_index):
channel_text[chan_num - low_chan] += (str(array[data_index])
+ "\n")
chan_num = low_chan if chan_num == high_chan else chan_num + 1
# Update the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
chan_index = chan_num - low_chan
self.chan_labels[chan_index]["text"] = channel_text[chan_index]
def recreate_data_frame(self):
low_chan = self.low_chan
high_chan = self.high_chan
new_data_frame = tk.Frame(self.inner_data_frame)
self.chan_labels = []
# Add the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
chan_label = tk.Label(new_data_frame, justify=tk.LEFT, padx=3)
chan_label.grid(row=0, column=chan_num - low_chan)
self.chan_labels.append(chan_label)
self.data_frame.destroy()
self.data_frame = new_data_frame
self.data_frame.grid()
def stop(self):
ul.stop_background(self.board_num, FunctionType.AIFUNCTION)
def set_ui_idle_state(self):
self.high_channel_entry["state"] = tk.NORMAL
self.low_channel_entry["state"] = tk.NORMAL
self.start_button["command"] = self.start
self.start_button["text"] = "Start"
def start(self):
self.high_channel_entry["state"] = tk.DISABLED
self.low_channel_entry["state"] = tk.DISABLED
self.start_button["command"] = self.stop
self.start_button["text"] = "Stop"
self.start_scan()
def get_low_channel_num(self):
if self.ai_info.num_chans == 1:
return 0
try:
return int(self.low_channel_entry.get())
except ValueError:
return 0
def get_high_channel_num(self):
if self.ai_info.num_chans == 1:
return 0
try:
return int(self.high_channel_entry.get())
except ValueError:
return 0
def validate_channel_entry(self, p):
if p == '':
return True
try:
value = int(p)
if value < 0 or value > self.ai_info.num_chans - 1:
return False
except ValueError:
return False
return True
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num)
+ ": " + self.device_info.product_name
+ " (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
curr_row = 0
if self.ai_info.num_chans > 1:
channel_vcmd = self.register(self.validate_channel_entry)
low_channel_entry_label = tk.Label(main_frame)
low_channel_entry_label["text"] = "Low Channel Number:"
low_channel_entry_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.low_channel_entry = tk.Spinbox(
main_frame, from_=0,
to=max(self.ai_info.num_chans - 1, 0),
validate='key', validatecommand=(channel_vcmd, '%P'))
self.low_channel_entry.grid(
row=curr_row, column=1, sticky=tk.W)
curr_row += 1
high_channel_entry_label = tk.Label(main_frame)
high_channel_entry_label["text"] = "High Channel Number:"
high_channel_entry_label.grid(
row=curr_row, column=0, sticky=tk.W)
self.high_channel_entry = tk.Spinbox(
main_frame, from_=0, validate='key',
to=max(self.ai_info.num_chans - 1, 0),
validatecommand=(channel_vcmd, '%P'))
self.high_channel_entry.grid(
row=curr_row, column=1, sticky=tk.W)
initial_value = min(self.ai_info.num_chans - 1, 3)
self.high_channel_entry.delete(0, tk.END)
self.high_channel_entry.insert(0, str(initial_value))
curr_row += 1
self.results_group = tk.LabelFrame(
self, text="Results", padx=3, pady=3)
self.results_group.pack(fill=tk.X, anchor=tk.NW, padx=3, pady=3)
self.results_group.grid_columnconfigure(1, weight=1)
curr_row = 0
status_left_label = tk.Label(self.results_group)
status_left_label["text"] = "Status:"
status_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.status_label = tk.Label(self.results_group)
self.status_label["text"] = "Idle"
self.status_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
index_left_label = tk.Label(self.results_group)
index_left_label["text"] = "Index:"
index_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.index_label = tk.Label(self.results_group)
self.index_label["text"] = "-1"
self.index_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
count_left_label = tk.Label(self.results_group)
count_left_label["text"] = "Count:"
count_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.count_label = tk.Label(self.results_group)
self.count_label["text"] = "0"
self.count_label.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
self.inner_data_frame = tk.Frame(self.results_group)
self.inner_data_frame.grid(
row=curr_row, column=0, columnspan=2, sticky=tk.W)
self.data_frame = tk.Frame(self.inner_data_frame)
self.data_frame.grid()
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
self.start_button = tk.Button(button_frame)
self.start_button["text"] = "Start"
self.start_button["command"] = self.start
self.start_button.grid(row=0, column=0, padx=3, pady=3)
self.quit_button = tk.Button(button_frame)
self.quit_button["text"] = "Quit"
self.quit_button["command"] = self.master.destroy
self.quit_button.grid(row=0, column=1, padx=3, pady=3)
class ULCT07(UIExample):
def __init__(self, master=None):
super(ULCT07, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.running = False
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
self.ctr_info = self.device_info.get_ctr_info()
if self.ctr_info.is_supported:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def update_value(self):
channel = self.get_channel_num()
try:
# Get a value from the device
value = ul.c_in_32(self.board_num, channel)
# Display the value
self.value_label["text"] = str(value)
# Call this method again until the stop button is pressed (or an
# error occurs)
if self.running:
self.after(100, self.update_value)
except ULError as e:
self.stop()
show_ul_error(e)
def stop(self):
self.running = False
self.start_button["command"] = self.start
self.start_button["text"] = "Start"
def start(self):
self.running = True
self.start_button["command"] = self.stop
self.start_button["text"] = "Stop"
try:
# Clear the counter
ul.c_clear(self.board_num, self.get_channel_num())
# Start updating the counter values
self.update_value()
except ULError as e:
self.stop()
show_ul_error(e)
def get_channel_num(self):
if self.ctr_info.num_chans == 1:
return self.ctr_info.chan_info[0].channel_num
try:
return int(self.channel_entry.get())
except ValueError:
return 0
def validate_channel_entry(self, p):
if p == '':
return True
try:
value = int(p)
if value < 0 or value > self.ctr_info.num_chans - 1:
return False
except ValueError:
return False
return True
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num) +
": " + self.device_info.product_name +
" (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
channel_vcmd = self.register(self.validate_channel_entry)
curr_row = 0
if self.ctr_info.num_chans > 1:
channel_entry_label = tk.Label(main_frame)
channel_entry_label["text"] = "Channel Number:"
channel_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
chan_info_list = self.ctr_info.chan_info
first_chan = chan_info_list[0].channel_num
# last_chan = chan_info_list[len(chan_info_list) - 1].channel_num
last_chan = first_chan
for chan_info in chan_info_list:
if chan_info.channel_num >= last_chan:
last_chan = chan_info.channel_num
else:
break
self.channel_entry = tk.Spinbox(main_frame,
from_=first_chan,
to=last_chan,
validate='key',
validatecommand=(channel_vcmd,
'%P'))
self.channel_entry.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
value_left_label = tk.Label(main_frame)
value_left_label["text"] = "Value read from selected channel:"
value_left_label.grid(row=curr_row, column=0, sticky=tk.W)
self.value_label = tk.Label(main_frame)
self.value_label.grid(row=curr_row, column=1, sticky=tk.W)
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
self.start_button = tk.Button(button_frame)
self.start_button["text"] = "Start"
self.start_button["command"] = self.start
self.start_button.grid(row=0, column=0, padx=3, pady=3)
quit_button = tk.Button(button_frame)
quit_button["text"] = "Quit"
quit_button["command"] = self.master.destroy
quit_button.grid(row=0, column=1, padx=3, pady=3)
class CInScan01(UIExample):
def __init__(self, master=None):
super(CInScan01, self).__init__(master)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
self.min_chan_num = -1
self.max_chan_num = -1
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
counter_info = self.device_info.get_ctr_info()
min_chan = next((channel for channel in counter_info.chan_info
if channel.type == CounterChannelType.CTRSCAN
or channel.type == CounterChannelType.CTRQUAD),
None)
if min_chan is not None:
self.min_chan_num = min_chan.channel_num
max_chan = next(
(channel for channel in reversed(counter_info.chan_info)
if channel.type == CounterChannelType.CTRSCAN
or channel.type == CounterChannelType.CTRQUAD), None)
if max_chan is not None:
self.max_chan_num = max_chan.channel_num
if self.min_chan_num != -1 and self.max_chan_num != -1:
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def start_scan(self):
low_chan = self.get_low_channel_num()
high_chan = self.get_high_channel_num()
if low_chan > high_chan:
messagebox.showerror(
"Error", "Low Channel Number must be greater than or equal "
"to High Channel Number")
self.start_button["state"] = tk.NORMAL
return
rate = 100
points_per_channel = 10
num_channels = high_chan - low_chan + 1
total_count = points_per_channel * num_channels
# Allocate a buffer for the scan
memhandle = ul.win_buf_alloc_32(total_count)
# Check if the buffer was successfully allocated
if not memhandle:
messagebox.showerror("Error", "Failed to allocate memory")
self.start_button["state"] = tk.NORMAL
return
try:
# Run the scan
ul.c_in_scan(self.board_num, low_chan, high_chan, total_count,
rate, memhandle, 0)
# Convert the memhandle to a ctypes array
# Note: the ctypes array will only be valid until win_buf_free
# is called.
# A copy of the buffer can be created using win_buf_to_array_32
# before the memory is freed. The copy can be used at any time.
array = cast(memhandle, POINTER(c_ulong))
# Display the values
self.display_values(array, total_count, low_chan, high_chan)
except ULError as e:
show_ul_error(e)
finally:
# Free the allocated memory
ul.win_buf_free(memhandle)
self.start_button["state"] = tk.NORMAL
def display_values(self, array, total_count, low_chan, high_chan):
new_data_frame = tk.Frame(self.results_group)
channel_text = []
# Add the headers
for chan_num in range(low_chan, high_chan + 1):
channel_text.append("Channel " + str(chan_num) + "\n")
chan_count = high_chan - low_chan + 1
# Add (up to) the first 10 values for each channel to the text
chan_num = low_chan
for data_index in range(0, min(chan_count * 10, total_count)):
channel_text[chan_num - low_chan] += str(array[data_index]) + "\n"
if chan_num == high_chan:
chan_num = low_chan
else:
chan_num += 1
# Add the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
chan_label = tk.Label(new_data_frame, justify=tk.LEFT, padx=3)
chan_label["text"] = channel_text[chan_num - low_chan]
chan_label.grid(row=0, column=chan_num - low_chan)
self.data_frame.destroy()
self.data_frame = new_data_frame
self.data_frame.grid()
def start(self):
self.start_button["state"] = tk.DISABLED
self.start_scan()
def get_low_channel_num(self):
try:
return int(self.low_channel_entry.get())
except ValueError:
return 0
def get_high_channel_num(self):
try:
return int(self.high_channel_entry.get())
except ValueError:
return 0
def validate_channel_entry(self, p):
if p == '':
return True
try:
value = int(p)
if value < self.min_chan_num or value > self.max_chan_num:
return False
except ValueError:
return False
return True
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num) +
": " + self.device_info.product_name +
" (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
channel_vcmd = self.register(self.validate_channel_entry)
curr_row = 0
low_channel_entry_label = tk.Label(main_frame)
low_channel_entry_label["text"] = "Low Channel Number:"
low_channel_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.low_channel_entry = tk.Spinbox(main_frame,
from_=self.min_chan_num,
to=self.max_chan_num,
validate='key',
validatecommand=(channel_vcmd,
'%P'))
self.low_channel_entry.grid(row=curr_row, column=1, sticky=tk.W)
curr_row += 1
high_channel_entry_label = tk.Label(main_frame)
high_channel_entry_label["text"] = "High Channel Number:"
high_channel_entry_label.grid(row=curr_row, column=0, sticky=tk.W)
self.high_channel_entry = tk.Spinbox(main_frame,
from_=self.min_chan_num,
to=self.max_chan_num,
validate='key',
validatecommand=(channel_vcmd,
'%P'))
self.high_channel_entry.grid(row=curr_row, column=1, sticky=tk.W)
initial_value = self.max_chan_num
self.high_channel_entry.delete(0, tk.END)
self.high_channel_entry.insert(0, str(initial_value))
self.results_group = tk.LabelFrame(self,
text="Results",
padx=3,
pady=3)
self.results_group.pack(fill=tk.X, anchor=tk.NW, padx=3, pady=3)
self.data_frame = tk.Frame(self.results_group)
self.data_frame.grid()
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
self.start_button = tk.Button(button_frame)
self.start_button["text"] = "Start"
self.start_button["command"] = self.start
self.start_button.grid(row=0, column=0, padx=3, pady=3)
quit_button = tk.Button(button_frame)
quit_button["text"] = "Quit"
quit_button["command"] = self.master.destroy
quit_button.grid(row=0, column=1, padx=3, pady=3)
class ULDO02(UIExample):
def __init__(self, master=None):
super(ULDO02, self).__init__(master)
master.protocol("WM_DELETE_WINDOW", self.exit)
# By default, the example detects all available devices and selects the
# first device listed.
# If use_device_detection is set to False, the board_num property needs
# to match the desired board number configured with Instacal.
use_device_detection = True
self.board_num = 0
try:
if use_device_detection:
self.configure_first_detected_device()
self.device_info = DaqDeviceInfo(self.board_num)
dio_info = self.device_info.get_dio_info()
# Find the first port that supports output, defaulting to None
# if one is not found.
self.port = next((port for port in dio_info.port_info
if port.supports_output), None)
if self.port is not None:
# If the port is configurable, configure it for output
if self.port.is_port_configurable:
try:
ul.d_config_port(self.board_num, self.port.type,
DigitalIODirection.OUT)
except ULError as e:
show_ul_error(e)
self.create_widgets()
else:
self.create_unsupported_widgets()
except ULError:
self.create_unsupported_widgets(True)
def exit(self):
# Set the port to 0 at exit
try:
ul.d_out(self.board_num, self.port.type, 0)
except ULError as e:
show_ul_error(e)
self.master.destroy()
def bit_checkbutton_changed(self, bit_num):
try:
# Get the value from the checkbutton
bit_value = self.bit_checkbutton_vars[bit_num].get()
# Output the value to the board
ul.d_bit_out(self.board_num, self.port.type, bit_num, bit_value)
except ULError as e:
show_ul_error(e)
def create_widgets(self):
'''Create the tkinter UI'''
self.device_label = tk.Label(self)
self.device_label.pack(fill=tk.NONE, anchor=tk.NW)
self.device_label["text"] = ('Board Number ' + str(self.board_num)
+ ": " + self.device_info.product_name
+ " (" + self.device_info.unique_id + ")")
main_frame = tk.Frame(self)
main_frame.pack(fill=tk.X, anchor=tk.NW)
curr_row = 0
bit_values_frame = tk.Frame(main_frame)
bit_values_frame.grid(row=curr_row, column=0, padx=3, pady=3)
label = tk.Label(bit_values_frame, text="Bit Number:")
label.grid(row=0, column=0, sticky=tk.W)
label = tk.Label(bit_values_frame, text="State:")
label.grid(row=1, column=0, sticky=tk.W)
# Create Checkbutton controls for each bit
self.bit_checkbutton_vars = []
max_bit = min(self.port.num_bits, 8)
for bit_num in range(0, max_bit):
bit_label = tk.Label(bit_values_frame, text=str(bit_num))
bit_label.grid(row=0, column=bit_num + 1)
var = IntVar(value=-1)
bit_checkbutton = tk.Checkbutton(
bit_values_frame, tristatevalue=-1, variable=var,
borderwidth=0,
command=lambda n=bit_num:
self.bit_checkbutton_changed(n))
bit_checkbutton.grid(row=1, column=bit_num + 1, padx=(5, 0))
self.bit_checkbutton_vars.append(var)
button_frame = tk.Frame(self)
button_frame.pack(fill=tk.X, side=tk.RIGHT, anchor=tk.SE)
quit_button = tk.Button(button_frame)
quit_button["text"] = "Quit"
quit_button["command"] = self.exit
quit_button.grid(row=0, column=0, padx=3, pady=3)