artiq/examples/rtio_skew.py

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2014-10-14 15:54:28 +08:00
from artiq import *
from artiq.devices import corecom_serial, core, rtio_core
def print_skew(p):
print("Input/output skew: {} ns".format(p))
def print_failed():
print("Pulse was not received back")
class RTIOSkew(AutoContext):
parameters = "i o"
@kernel
def run(self):
with parallel:
self.i.gate_rising(10*us)
with sequential:
delay(5*us)
out_t = now()
self.o.pulse(5*us)
in_t = self.i.timestamp()
if in_t < 0*s:
print_failed()
else:
print_skew(int((out_t - in_t)/(1*ns)))
if __name__ == "__main__":
with corecom_serial.CoreCom() as com:
coredev = core.Core(com)
exp = RTIOSkew(core=coredev,
i=rtio_core.RTIOIn(core=coredev, channel=0),
o=rtio_core.RTIOOut(core=coredev, channel=1))
exp.run()