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test_rtio: comments and correction
* add comments what is actually being measured in the two rate tests * remove spurious factor of two
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@ -83,6 +83,8 @@ class ClockGeneratorLoopback(EnvExperiment):
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class PulseRate(EnvExperiment):
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kernel_constant_attributes = {"core", "ttl_out"}
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def build(self):
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self.setattr_device("core")
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self.setattr_device("ttl_out")
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@ -129,7 +131,7 @@ class PulseRateDDS(EnvExperiment):
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self.core.break_realtime()
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break
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else:
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self.set_dataset("pulse_rate", mu_to_seconds(2*dt))
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self.set_dataset("pulse_rate", mu_to_seconds(dt))
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return
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@ -253,6 +255,7 @@ class CoredeviceTest(ExperimentCase):
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self.assertEqual(count, 10)
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def test_pulse_rate(self):
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"""Mimumum delay and duration of sustainably emitted TTL pulses"""
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self.execute(PulseRate)
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rate = self.dataset_mgr.get("pulse_rate")
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print(rate)
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@ -260,11 +263,13 @@ class CoredeviceTest(ExperimentCase):
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self.assertLess(rate, 1500*ns)
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def test_pulse_rate_dds(self):
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"""Minimum delay between DDS batches each setting the frequencies of
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two DDS"""
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self.execute(PulseRateDDS)
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rate = self.dataset_mgr.get("pulse_rate")
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print(rate)
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self.assertGreater(rate, 5*us)
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self.assertLess(rate, 25*us)
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self.assertGreater(rate, 3*us)
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self.assertLess(rate, 12*us)
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def test_loopback_count(self):
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npulses = 2
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