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examples/transport: cleanup, make work (closes #20)

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Robert Jördens 2016-02-22 15:29:19 +01:00
parent 94584bb8b1
commit 61bcfb6000
1 changed files with 13 additions and 13 deletions
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26
examples/master/repository/coredevice_examples/transport.py
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@ -6,13 +6,6 @@ from artiq.experiment import *
from artiq.wavesynth.coefficients import SplineSource
transport = SplineSource(
x=np.linspace(0, 10, 101), # waveform time
y=np.random.rand(4*3*3, 101)*1e-6, # waveform data,
# 4 devices, 3 board each, 3 dacs each
)
class Transport(EnvExperiment):
"""Transport"""
@ -23,19 +16,26 @@ class Transport(EnvExperiment):
self.setattr_device("electrodes")
self.setattr_argument("wait_at_stop", NumberValue(100*us))
self.setattr_argument("speed", NumberValue(1.5))
self.setattr_argument("speed", NumberValue(1/(10*us)))
self.setattr_argument("repeats", NumberValue(100))
self.setattr_argument("bins", NumberValue(100))
t = np.linspace(0, 10, 101) # waveform time
u = 1 - np.cos(np.pi*t/t[-1])
# 4 devices, 3 board each, 3 dacs each
u = np.arange(4*3*3)[:, None]*.1 + u
self.data = SplineSource(x=t, y=u)
def calc_waveforms(self, stop):
scale = self.speed/(50*MHz)
self.electrodes.disarm()
self.tf = self.electrodes.create_frame()
to_stop = self.tf.create_segment("to_stop")
from_stop = self.tf.create_segment("from_stop")
transport.extend_segment(to_stop, 0, stop, scale=self.speed)
self.data.extend_segment(self.tf.create_segment("to_stop"),
0, stop, scale=scale)
# append the reverse transport (from stop to 0)
# both durations are the same in this case
transport.extend_segment(from_stop, 0, stop, scale=self.speed)
self.data.extend_segment(self.tf.create_segment("from_stop"),
stop, 0, scale=scale)
# distributes frames to the sub-devices in CompoundPDQ2
# and uploads them
self.electrodes.arm()
@ -91,7 +91,7 @@ class Transport(EnvExperiment):
def run(self):
# scan transport endpoint
stops = range(10, len(transport.x), 10)
stops = np.linspace(0, 10, 10)
self.scan(stops)