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