artiq/examples/pulse_performance.py

28 lines
701 B
Python
Raw Normal View History

2014-10-11 13:00:27 +08:00
from artiq import *
2014-10-19 23:51:49 +08:00
from artiq.coredevice.runtime_exceptions import RTIOUnderflow
2014-10-11 13:00:27 +08:00
def print_min_period(p):
print("Minimum square wave output period: {} ns".format(p))
class PulsePerformance(AutoDB):
class DBKeys:
ttl0 = Device()
2014-10-11 13:00:27 +08:00
@kernel
def run(self):
T = time_to_cycles(100*ns)
while True:
try:
for i in range(1000):
2014-12-03 18:20:30 +08:00
self.ttl0.pulse(cycles_to_time(T))
2014-10-11 13:00:27 +08:00
delay(cycles_to_time(T))
except RTIOUnderflow:
T += 1
2014-11-21 04:38:52 +08:00
self.core.recover_underflow()
2014-10-11 13:00:27 +08:00
else:
print_min_period(int(cycles_to_time(2*T)/(1*ns)))
break