mirror of https://github.com/m-labs/artiq
135 lines
5.2 KiB
Python
Executable File
135 lines
5.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# Based on code by Robert Jordens <jordens@gmail.com>, 2012
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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.management.pc_rpc import Client
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def _get_args():
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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("-e", "--free", default=False,
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action="store_true",
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help="software trigger [%(default)s]")
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parser.add_argument("-n", "--disarm", default=False,
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action="store_true",
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help="disarm group [%(default)s]")
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parser.add_argument("-t", "--times",
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default="np.arange(5)*1e-6",
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help="sample times (s) [%(default)s]")
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parser.add_argument("-v", "--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("-o", "--order", default=3, type=int,
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help="interpolation"
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" (0: const, 1: lin, 2: quad, 3: cubic)"
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" [%(default)s]")
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parser.add_argument("-m", "--dcm", default=None, type=int,
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help="choose fast 100MHz clock [%(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,"
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" 1V*ch+0.1V*frame [%(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("-b", "--bit", default=False,
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action="store_true", help="do bit test")
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return parser.parse_args()
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def _main():
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args = _get_args()
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dev = Client(args.server, args.port, "pdq2")
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dev.init()
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if args.reset:
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dev.flush_escape()
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dev.write_cmd("RESET_EN")
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time.sleep(.1)
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if args.dcm:
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dev.write_cmd("DCM_EN")
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dev.set_freq(100e6)
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elif args.dcm == 0:
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dev.write_cmd("DCM_DIS")
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dev.set_freq(50e6)
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dev.write_cmd("START_DIS")
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num_channels = dev.get_num_channels()
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num_frames = dev.get_num_frames()
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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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# FIXME
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channels = [args.channel] if args.channel < num_channels \
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else range(num_channels)
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frames = [args.frame] if args.frame < num_frames \
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else range(num_frames)
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for channel in channels:
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f = []
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for frame in frames:
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vi = .1*frame + channel + voltages
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pi = 2*np.pi*(.01*frame + .1*channel + 0*voltages)
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fi = 10e6*times/times[-1]
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f.append(b"".join([
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dev.frame(times, vi, order=args.order, end=False),
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dev.frame(2*times, voltages, pi, fi, trigger=False),
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# dev.frame(2*times, 0*vi+.1, 0*pi, 0*fi+1e6),
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# dev.frame(times, 0*vi, order=args.order, silence=True),
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]))
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board, dac = divmod(channel, dev.num_dacs)
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dev.write_data(dev.add_mem_header(board, dac, dev.map_frames(f)))
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elif args.bit:
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map = [0] * num_frames
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t = np.arange(2*16) * 1.
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v = [-1, 0, -1]
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for i in range(15):
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vi = 1 << i
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v.extend([vi - 1, vi])
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v = np.array(v)*dev.get_max_out()/(1 << 15)
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t, v = t[:3], v[:3]
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# print(t, v)
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for channel in range(num_channels):
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dev.multi_frame([(t, v)], channel=channel, order=0, map=map,
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shift=15, stop=False, trigger=False)
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else:
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tv = [(times, voltages)]
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map = [None] * num_frames
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map[args.frame] = 0
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dev.multi_frame(tv, channel=args.channel, order=args.order, map=map)
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dev.write_cmd("START_EN")
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if not args.disarm:
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dev.write_cmd("ARM_EN")
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if args.free:
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dev.write_cmd("TRIGGER_EN")
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if args.plot:
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from matplotlib import pyplot as plt
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fig, ax0 = plt.subplots()
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ax0.plot(times, voltages, "xk", label="points")
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if args.order:
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spline = interpolate.splrep(times, voltages, k=args.order)
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ttimes = np.arange(0, times[-1], 1/dev.get_freq())
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vvoltages = interpolate.splev(ttimes, spline)
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ax0.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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