# https://github.com/analogdevicesinc/pyadi-iio/blob/master/examples/ad9361_example.py
# Copyright (C) 2022 Analog Devices, Inc.
#
# SPDX short identifier: ADIBSD
"""
Copyright 2019-2023(c) Analog Devices, Inc.
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

   - Redistributions of source code must retain the above copyright notice,
     this list of conditions and the following disclaimer.
   - Redistributions in binary form must reproduce the above copyright notice,
     this list of conditions and the following disclaimer in the documentation
     and/or other materials provided with the distribution.
   - Neither the name of Analog Devices, Inc. nor the names of its contributors
     may be used to endorse or promote products derived from this software
     without specific prior written permission.
   - The use of this software may or may not infringe the patent rights of one
     or more patent holders.  This license does not release you from the
     requirement that you obtain separate licenses from these patent holders to
     use this software.
   - Use of the software either in source or binary form or filter designs
     resulting from the use of this software, must be connected to, run on or
     loaded to an Analog Devices Inc. component.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""

import time

import adi
import matplotlib.pyplot as plt
import numpy as np
from scipy import signal

# Create radio
sdr = adi.ad9361(uri="ip:192.168.1.10")

# Configure properties
sdr.rx_rf_bandwidth = 4000000
sdr.sample_rate = 6000000
sdr.rx_lo = 2450000000
sdr.tx_lo = 2450000000
sdr.tx_cyclic_buffer = True
sdr.tx_hardwaregain_chan0 = -30
sdr.gain_control_mode_chan0 = "slow_attack"

# Configuration data channels
sdr.rx_enabled_channels = [0]
sdr.tx_enabled_channels = [0]

# Read properties
print("RX LO %s" % (sdr.rx_lo))

# Create a sinewave waveform
fs = int(sdr.sample_rate)
N = 1024
fc = int(1000000 / (fs / N)) * (fs / N)
ts = 1 / float(fs)
t = np.arange(0, N * ts, ts)
i = np.cos(2 * np.pi * t * fc) * 2**14
q = np.sin(2 * np.pi * t * fc) * 2**14
iq = i + 1j * q

# Send data
# sdr.tx(iq)

# Collect data
for r in range(20):
    x = sdr.rx()
    f, Pxx_den = signal.periodogram(x, fs)
    plt.clf()
    plt.semilogy(f, Pxx_den)
    plt.ylim([1e-7, 1e2])
    plt.xlabel("frequency [Hz]")
    plt.ylabel("PSD [V**2/Hz]")
    plt.draw()
    plt.pause(0.05)
    time.sleep(0.1)

plt.show()