forked from M-Labs/artiq
test: level-based TTL APIs (#218)
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@ -172,6 +172,65 @@ class LoopbackCount(EnvExperiment):
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self.set_dataset("count", self.loop_in.count())
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class IncorrectLevel(Exception):
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pass
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class Level(EnvExperiment):
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def build(self):
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self.setattr_device("core")
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self.setattr_device("loop_in")
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self.setattr_device("loop_out")
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@kernel
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def run(self):
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self.core.reset()
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self.loop_in.input()
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self.loop_out.output()
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delay(5*us)
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self.loop_out.off()
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delay(5*us)
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if self.loop_in.sample_get_nonrt():
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raise IncorrectLevel
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self.loop_out.on()
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delay(5*us)
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if not self.loop_in.sample_get_nonrt():
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raise IncorrectLevel
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class Watch(EnvExperiment):
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def build(self):
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self.setattr_device("core")
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self.setattr_device("loop_in")
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self.setattr_device("loop_out")
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@kernel
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def run(self):
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self.core.reset()
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self.loop_in.input()
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self.loop_out.output()
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delay(5*us)
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self.loop_out.off()
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delay(5*us)
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if not self.loop_in.watch_stay_off():
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raise IncorrectLevel
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delay(10*us)
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if not self.loop_in.watch_done():
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raise IncorrectLevel
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delay(10*us)
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if not self.loop_in.watch_stay_off():
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raise IncorrectLevel
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delay(3*us)
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self.loop_out.on()
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delay(10*us)
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if self.loop_in.watch_done():
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raise IncorrectLevel
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class Underflow(EnvExperiment):
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def build(self):
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self.setattr_device("core")
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@ -309,6 +368,12 @@ class CoredeviceTest(ExperimentCase):
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count = self.dataset_mgr.get("count")
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self.assertEqual(count, npulses)
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def test_level(self):
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self.execute(Level)
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def test_watch(self):
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self.execute(Watch)
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def test_underflow(self):
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with self.assertRaises(RTIOUnderflow):
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self.execute(Underflow)
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