artiq/benchmarks/pulse_rate.py

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from artiq import *
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from artiq.coredevice.runtime_exceptions import RTIOUnderflow
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class PulseRate(Experiment, AutoDB):
"""Sustained pulse rate"""
class DBKeys:
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core = Device()
ttl0 = Device()
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pulse_rate = Result()
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@kernel
def run(self):
T = time_to_cycles(100*ns)
while True:
try:
for i in range(1000):
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self.ttl0.pulse(cycles_to_time(T))
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delay(cycles_to_time(T))
except RTIOUnderflow:
T += 1
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self.core.break_realtime()
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else:
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self.pulse_rate = cycles_to_time(2*T)
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break