139 lines
5.2 KiB
Python
Executable file
139 lines
5.2 KiB
Python
Executable file
#!/usr/bin/env python2
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# -*- coding: utf-8 -*-
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##################################################
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# GNU Radio Python Flow Graph
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# Title: Top Block
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# Generated: Sun May 12 22:10:45 2019
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##################################################
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from gnuradio import analog
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from gnuradio import audio
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from gnuradio import blocks
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from gnuradio import eng_notation
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from gnuradio import filter
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from gnuradio import gr
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from gnuradio.eng_option import eng_option
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from gnuradio.filter import firdes
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from optparse import OptionParser
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import osmosdr
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import time
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import socket
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import re
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class top_block(gr.top_block):
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def __init__(self):
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gr.top_block.__init__(self, "Top Block")
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##################################################
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# Variables
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##################################################
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self.samp_rate = samp_rate = 1536000
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self.frequency = frequency = 96900000
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##################################################
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# Blocks
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##################################################
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self.rtlsdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + '' )
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self.rtlsdr_source_0.set_sample_rate(samp_rate)
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self.rtlsdr_source_0.set_center_freq(frequency, 0)
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self.rtlsdr_source_0.set_freq_corr(0, 0)
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self.rtlsdr_source_0.set_dc_offset_mode(2, 0)
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self.rtlsdr_source_0.set_iq_balance_mode(2, 0)
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self.rtlsdr_source_0.set_gain_mode(True, 0)
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self.rtlsdr_source_0.set_gain(0, 0)
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self.rtlsdr_source_0.set_if_gain(0, 0)
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self.rtlsdr_source_0.set_bb_gain(0, 0)
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self.rtlsdr_source_0.set_antenna('', 0)
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self.rtlsdr_source_0.set_bandwidth(0, 0)
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self.low_pass_filter_0 = filter.fir_filter_ccf(4, firdes.low_pass(
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1, samp_rate, 500000, 60000, firdes.WIN_KAISER, 6.76))
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self.blocks_udp_sink_0 = blocks.udp_sink(gr.sizeof_float*1, '127.0.0.1', 7654, 1472, True)
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self.blocks_throttle_0 = blocks.throttle(gr.sizeof_gr_complex*1, samp_rate,True)
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self.analog_wfm_rcv_0 = analog.wfm_rcv(
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quad_rate=384000,
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audio_decimation=8,
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)
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##################################################
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# Connections
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##################################################
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self.connect((self.analog_wfm_rcv_0, 0), (self.blocks_udp_sink_0, 0))
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self.connect((self.blocks_throttle_0, 0), (self.low_pass_filter_0, 0))
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self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0, 0))
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self.connect((self.rtlsdr_source_0, 0), (self.blocks_throttle_0, 0))
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def get_samp_rate(self):
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return self.samp_rate
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def set_samp_rate(self, samp_rate):
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self.samp_rate = samp_rate
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self.rtlsdr_source_0.set_sample_rate(self.samp_rate)
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self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, 500000, 60000, firdes.WIN_KAISER, 6.76))
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self.blocks_throttle_0.set_sample_rate(self.samp_rate)
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def get_frequency(self):
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return self.frequency
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def set_frequency(self, frequency):
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self.frequency = frequency
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self.rtlsdr_source_0.set_center_freq(self.frequency, 0)
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def main(top_block_cls=top_block, options=None):
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tb = top_block_cls()
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tb.start()
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HOST = '127.0.0.1' # Loopback Address (Localhost)
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PORT = 65432 # Semi-Random Port that is non-priviledged (> 1023)
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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# Avoid bind() exception: OSError: [Errno 48] Address already in use
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s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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s.bind((HOST, PORT))
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quit = False
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while not quit:
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s.listen(1) # Number of unaccepted connections before it rejects new ones
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conn, addr = s.accept()
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print("Connected by ", addr)
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while not quit:
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data = conn.recv(1024) # Not sure about the bytes argument...
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data = data.strip() # Removes \r\n
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print("DATA: ", data)
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commands = re.split(";", data)
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if data == "":
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break
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for command in commands:
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if command == "":
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continue
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elif command[0] == '?':
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# Query Section
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if command[1:] == "VER":
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conn.sendall("Version 0.1\n")
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elif command[1:] == "FREQ":
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conn.sendall(str(tb.get_frequency()) + '\n')
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else:
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print("UNKNOWN COMMAND: ", command)
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elif command[0] == ':':
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# Setter Section
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if command[1:5] == "FREQ":
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print("FREQUENCY SET")
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frequency = float(command[6:])
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if frequency >= 87500000 and frequency <= 108000000:
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tb.set_frequency(frequency)
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else:
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print("ERROR: Invalid Frequency ", frequency)
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elif command[1:] == "QUIT":
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print("QUITTING")
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quit = True
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else:
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print("UNKNOWN COMMAND: ", command)
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else:
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print("UNKNOWN COMMAND", command)
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conn.close()
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s.close()
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if __name__ == '__main__':
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main()
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