waveform_samples = 500
for i, dev in enumerate(session.devices):
# Output a sine wave for channel A voltage.
dev.channels['A'].mode = Mode.SVMI
dev.channels['A'].sine(0, 5, waveform_samples, -(waveform_samples / 4))
# Output a cosine wave for channel B voltage.
dev.channels['B'].mode = Mode.SVMI
dev.channels['B'].sine(0, 5, waveform_samples, 0)
chan_a = defaultdict(list)
chan_b = defaultdict(list)
# Run the session in noncontinuous mode.
for _x in xrange(10):
for i, samples in enumerate(session.get_samples(waveform_samples / 5)):
chan_a[i].extend([x[0][0] for x in samples])
chan_b[i].extend([x[1][0] for x in samples])
for i, dev in enumerate(session.devices):
plt.figure(i)
plt.plot(chan_a[i], label='Channel A')
plt.plot(chan_b[i], label='Channel B')
plt.legend(bbox_to_anchor=(1.05, 1), loc=2, borderaxespad=0.)
plt.title('Device {}: {}'.format(i, str(session.devices[i])))
plt.ylabel('Voltage')
plt.xlabel('Sample number')
# Show all channel voltage plots for attached devices.
plt.show()
from __future__ import print_function
import sys
from pysmu import Session, Mode
if __name__ == '__main__':
session = Session()
if not session.devices:
sys.exit(1)
for dev in session.devices:
dev.channels['A'].mode = Mode.SVMI
dev.channels['B'].mode = Mode.SIMV
for x in range(21):
# Write 1000 samples of incrementing voltage and current values to
# channel A and B, respectively, for every device in the session.
v = x * (5 / 20.0)
i = ((x * (4 / 20.0)) / 10.0) - 0.2
data = (([v] * 1000, [i] * 1000) for dev in session.devices)
session.write(data, cyclic=True)
for dev, samples in enumerate(session.get_samples(10)):
print('dev: {}: chan A voltage: {}, chan B current: {}'.format(
dev, v, i))
for x in samples:
print("{: 6f} {: 6f} {: 6f} {: 6f}".format(
x[0][0], x[0][1], x[1][0], x[1][1]))
# connected to a system.
from __future__ import print_function
import sys
from pysmu import Session, Mode
if __name__ == '__main__':
session = Session()
if not session.devices:
sys.exit(1)
for idx, dev in enumerate(session.devices):
# Set all devices in the session to use source voltage, measure current
# mode for channel A with a constant value based on their index.
dev.channels['A'].mode = Mode.SVMI
dev.channels['A'].constant(idx % 6)
# Set all devices in the session to use source current, measure voltage
# mode for channel B with a constant value of 0.05.
dev.channels['B'].mode = Mode.SIMV
dev.channels['B'].constant(0.05)
# Run the session for at least 10 captured samples in noncontinuous mode.
for dev_idx, samples in enumerate(session.get_samples(1000)):
print('dev: {}'.format(dev_idx))
for x in samples:
print("{: 6f} {: 6f} {: 6f} {: 6f}".format(x[0][0], x[0][1], x[1][0], x[1][1]))
