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test_pulse_rate: tighten upper bound to 1500ns.

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This commit is contained in:
whitequark 2016-03-26 22:28:22 +00:00
parent 20ad7629ac
commit 2a210d74fb
1 changed files with 9 additions and 8 deletions
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17
artiq/test/coredevice/test_rtio.py
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@ -89,18 +89,19 @@ class PulseRate(EnvExperiment):
@kernel
def run(self):
dt = seconds_to_mu(1000*ns)
dt = seconds_to_mu(300*ns)
while True:
try:
for i in range(1000):
for i in range(10000):
try:
self.ttl_out.pulse_mu(dt)
delay_mu(dt)
except RTIOUnderflow:
dt += 1
self.core.break_realtime()
except RTIOUnderflow:
dt += 1
self.core.break_realtime()
break
else:
self.set_dataset("pulse_rate", mu_to_seconds(2*dt))
break
return
class PulseRateDDS(EnvExperiment):
@ -253,7 +254,7 @@ class CoredeviceTest(ExperimentCase):
rate = self.dataset_mgr.get("pulse_rate")
print(rate)
self.assertGreater(rate, 100*ns)
self.assertLess(rate, 2500*ns)
self.assertLess(rate, 1500*ns)
def test_pulse_rate_dds(self):
self.execute(PulseRateDDS)