def test_read_continuous_dataflow_raises():
"""Verify workflows that lead to data flow issues."""
# create a session that doesn't ignore data flow issues
session = Session(add_all=False, ignore_dataflow=False)
session.scan()
session.add(session.available_devices[0])
device = session.devices[0]
session.start(0)
time.sleep(.5)
with pytest.raises(SampleDrop):
device.read(1000)
# force session destruction
session._close()
CHB = dev.channels['B'] # Open CHB
CHB.mode = Mode.HI_Z_SPLIT # Put CHB in Hi Z split mode
dev.set_adc_mux(0) # kein ADC-Mux, d.h. Abtasten CA-V/I und CB-V/I
CHA.mode = Mode.HI_Z
CHB.mode = Mode.SIMV # Put CHA in SIMV mode
freq = START_FREQ
min_i = AWGB_IVAL_MIN / 1000
max_i = AWGB_IVAL_MAX / 1000
charge_val = 0
for freq in range(START_FREQ, STOP_FREQ, FREQ_STEP):
if (keep_going):
periodval = SAMP_RATE / freq
CHB.sine(max_i, min_i, periodval, 0)
session.start(0)
if first_step:
print("Initiale Ladung vor der ersten Messung...")
time.sleep(10)
print(
"Messzeit (s) Frequenz (HZ) DC/AC Spannung (V) Strom (mA) AC Widerstand (Ohm) Ladung (mAh)"
)
print(
"-----------------------------------------------------------------------------------------"
)
first_step = False
start_time = time.time()
time.sleep(TIME_STEP)
# Starting acquisition
adc_signal = dev.read(
while not SESSION.devices:
SESSION = Session()
print 'Device detected...'
if SESSION.devices:
# Grab the first device from the session.
DEV = SESSION.devices[0]
# Set both channels to source voltage, measure current mode.
CHAN_A = DEV.channels['A']
CHAN_B = DEV.channels['B']
CHAN_A.mode = Mode.HI_Z
CHAN_B.mode = Mode.HI_Z
# Start a continuous session.
SESSION.start(0)
NUM_SAMPLES = SESSION.queue_size + 1
READY = False
COUNTER = 0
ioxp_adp5589.gpo_set_ac([""])
adc_ad7091r5.init()
dac_ad5647r.init()
menu()
while True:
CH_A_VOLTAGE, CH_A_CURRENT, CH_B_VOLTAGE, CH_B_CURRENT = \
[0.0], [0.0], [0.0], [0.0]
SETTINGS_M1K = check_input(
TEXT['purple'] + 'Step: ' + TEXT['default'], 1, Mode.HI_Z,
COUNTER)
if SETTINGS_M1K is not None:
