def advance(self):
if self.invalidated:
raise InvalidatedError()
if not self.pdq.armed:
raise ArmError()
call_t = now_mu()
trigger_start_t = call_t - self.core.seconds_to_mu(trigger_duration/2)
if self.pdq.current_frame >= 0:
# PDQ is in the middle of a frame. Check it is us.
if self.pdq.current_frame != self.frame_number:
raise FrameActiveError()
else:
# PDQ is in the jump table - set the selection signals
# to play our first segment.
self.pdq.current_frame = self.frame_number
self.pdq.next_segment = 0
at_mu(trigger_start_t - self.core.seconds_to_mu(frame_setup))
self.pdq.set_frame(self.frame_number)
at_mu(trigger_start_t)
self.pdq.trigger.pulse(trigger_duration)
at_mu(call_t)
delay_mu(self.segment_delays[self.pdq.next_segment])
self.pdq.next_segment += 1
# test for end of frame
if self.pdq.next_segment == self.segment_count:
self.pdq.current_frame = -1
self.pdq.next_segment = -1
def test_demo_2tone(self):
MHz = 1e-3
ns = 1.
self.sawg0 = self.driver
t_up = t_hold = t_down = 400 * ns
a1 = .3
a2 = .4
order = 3
self.sawg0.frequency0.set(10 * MHz)
self.sawg0.phase0.set(0.)
self.sawg0.frequency1.set(1 * MHz)
self.sawg0.phase1.set(0.)
self.sawg0.frequency2.set(13 * MHz)
self.sawg0.phase2.set(0.)
t = now_mu()
self.sawg0.amplitude1.smooth(.0, a1, t_up, order)
at_mu(t)
self.sawg0.amplitude2.smooth(.0, a2, t_up, order)
self.sawg0.amplitude1.set(a1)
self.sawg0.amplitude2.set(a2)
delay(t_hold)
t = now_mu()
self.sawg0.amplitude1.smooth(a1, .0, t_down, order)
at_mu(t)
self.sawg0.amplitude2.smooth(a2, .0, t_down, order)
self.sawg0.amplitude1.set(.0)
self.sawg0.amplitude2.set(.0)
out = self.run_channel(self.rtio_manager.outputs)
out = sum(out, [])
if True:
import matplotlib.pyplot as plt
plt.plot(out)
plt.show()
def test_demo_2tone(self):
MHz = 1e-3
ns = 1.
self.sawg0 = self.driver
t_up = t_hold = t_down = 400*ns
a1 = .3
a2 = .4
order = 3
self.sawg0.frequency0.set(10*MHz)
self.sawg0.phase0.set(0.)
self.sawg0.frequency1.set(1*MHz)
self.sawg0.phase1.set(0.)
self.sawg0.frequency2.set(13*MHz)
self.sawg0.phase2.set(0.)
t = now_mu()
self.sawg0.amplitude1.smooth(.0, a1, t_up, order)
at_mu(t)
self.sawg0.amplitude2.smooth(.0, a2, t_up, order)
self.sawg0.amplitude1.set(a1)
self.sawg0.amplitude2.set(a2)
delay(t_hold)
t = now_mu()
self.sawg0.amplitude1.smooth(a1, .0, t_down, order)
at_mu(t)
self.sawg0.amplitude2.smooth(a2, .0, t_down, order)
self.sawg0.amplitude1.set(.0)
self.sawg0.amplitude2.set(.0)
out = self.run_channel(self.rtio_manager.outputs)
out = sum(out, [])
if True:
import matplotlib.pyplot as plt
plt.plot(out)
plt.show()