artiq/artiq/frontend/pdq2_client.py

121 lines
5.0 KiB
Python
Executable File

#!/usr/bin/python
# Robert Jordens <jordens@gmail.com>, 2012-2015
import argparse
import time
from scipy import interpolate
import numpy as np
from artiq.protocols.pc_rpc import Client
from artiq.tools import verbosity_args, init_logger
def get_argparser():
parser = argparse.ArgumentParser(description="""PDQ2 client.
Evaluates times and voltages, interpolates and uploads
them to the controller.""")
parser.add_argument("-s", "--server", default="::1",
help="hostname or IP of the controller to connect to")
parser.add_argument("--port", default=3252, type=int,
help="TCP port to use to connect to the controller")
parser.add_argument("-c", "--channel", default=0, type=int,
help="channel: 3*board_num+dac_num [%(default)s]")
parser.add_argument("-f", "--frame", default=0, type=int,
help="frame [%(default)s]")
parser.add_argument("-t", "--times", default="np.arange(5)*1e-6",
help="sample times (s) [%(default)s]")
parser.add_argument("-u", "--voltages",
default="(1-np.cos(t/t[-1]*2*np.pi))/2",
help="sample voltages (V) [%(default)s]")
parser.add_argument("-a", "--aux", default=False, action="store_true",
help="axiliary digital output [%(default)%s]")
parser.add_argument("-o", "--order", default=3, type=int,
help="interpolation (0: const, 1: lin, 2: quad,"
" 3: cubic) [%(default)s]")
parser.add_argument("-p", "--plot", help="plot to file [%(default)s]")
parser.add_argument("-r", "--reset", default=False,
action="store_true", help="do reset before")
parser.add_argument("-m", "--dcm", default=False, action="store_true",
help="100MHz clock [%(default)s]")
parser.add_argument("-n", "--disarm", default=False, action="store_true",
help="disarm group [%(default)s]")
parser.add_argument("-e", "--free", default=False, action="store_true",
help="software trigger [%(default)s]")
parser.add_argument("-x", "--demo", default=False, action="store_true",
help="demo mode: pulse and chirp, 1V*ch+0.1V*frame"
" [%(default)s]")
parser.add_argument("-b", "--bit", default=False,
action="store_true", help="do bit test")
verbosity_args(parser)
return parser
def main():
args = get_argparser().parse_args()
init_logger(args)
dev = Client(args.server, args.port, "pdq2")
dev.init()
if args.reset:
dev.write(b"\x00\x00") # flush any escape
dev.cmd("RESET", True)
time.sleep(.1)
dev.cmd("START", False)
dev.cmd("ARM", False)
dev.cmd("DCM", args.dcm)
freq = 100e6 if args.dcm else 50e6
dev.set_freq(freq)
num_channels = dev.get_num_channels()
num_frames = dev.get_num_frames()
times = eval(args.times, globals(), {})
voltages = eval(args.voltages, globals(), dict(t=times))
if args.demo:
for ch, channel in enumerate(dev.channels):
entry = []
for fr in range(dev.channels[0].num_frames):
vi = .1*fr + ch + voltages
entry.append(channel.segment(times, vi, order=args.order,
end=False, aux=args.aux))
pi = 2*np.pi*(-.5 + .01*fr + .1*ch + 0*voltages)
fi = 10e6*times/times[-1]
channel.segment(2*times, voltages, pi, fi, trigger=False,
silence=True, aux=args.aux)
dev.write_channel(channel, entry)
elif args.bit:
v = [-1, 0, -1]
# for i in range(15):
# v.extend([(1 << i) - 1, 1 << i])
v = np.array(v)*dev.channels[0].max_out/dev.channels[0].max_val
t = np.arange(len(v))
for channel in dev.channels:
s = channel.segment(t, v, order=0, shift=15, stop=False,
trigger=False)
dev.write_channel(channel, [s for i in range(channel.num_frames)])
else:
c = dev.channels[args.channel]
map = [None] * c.num_frames
map[args.frame] = c.segment(times, voltages, order=args.order,
aux=args.aux)
dev.write_channel(c, map)
dev.cmd("START", True)
dev.cmd("ARM", not args.disarm)
dev.cmd("TRIGGER", args.free)
if args.plot:
from matplotlib import pyplot as plt
fig, ax = plt.subplots()
ax.plot(times, voltages, "xk", label="points")
if args.order > 0:
spline = interpolate.splrep(times, voltages, k=args.order)
ttimes = np.arange(0, times[-1], 1/freq)
vvoltages = interpolate.splev(ttimes, spline)
ax.plot(ttimes, vvoltages, ",b", label="interpolation")
fig.savefig(args.plot)
if __name__ == "__main__":
main()