我真的希望你能帮助我。所以我在 Gnu Radio Companion 中编写了一个简单的程序，它能够使用 HackRf One 传输文本文件。该程序在我的两台笔记本电脑上运行良好（都在 Ubuntu 15.10、最新的 GNU-Radio 和 Osmocom 上），但是当我尝试在我的 Odroid C1 上启动它时，该程序似乎工作正常，但没有数据传输。HackRF 由 USB-HUB 供电，所以这不是问题。你有什么想法？
发射器（不是问题）：
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: Top Block
# Generated: Tue Feb 23 19:31:30 2016
##################################################
if __name__ == '__main__':
import ctypes
import sys
if sys.platform.startswith('linux'):
try:
x11 = ctypes.cdll.LoadLibrary('libX11.so')
x11.XInitThreads()
except:
print "Warning: failed to XInitThreads()"
from gnuradio import analog
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import filter
from gnuradio import gr
from gnuradio import wxgui
from gnuradio.eng_option import eng_option
from gnuradio.fft import window
from gnuradio.filter import firdes
from gnuradio.wxgui import fftsink2
from grc_gnuradio import wxgui as grc_wxgui
from optparse import OptionParser
import wx
class top_block(grc_wxgui.top_block_gui):
def __init__(self):
grc_wxgui.top_block_gui.__init__(self, title="Top Block")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 32000
##################################################
# Blocks
##################################################
self.wxgui_fftsink2_0 = fftsink2.fft_sink_f(
self.GetWin(),
baseband_freq=0,
y_per_div=10,
y_divs=10,
ref_level=0,
ref_scale=2.0,
sample_rate=samp_rate,
fft_size=1024,
fft_rate=15,
average=False,
avg_alpha=None,
title="FFT Plot",
peak_hold=False,
)
self.Add(self.wxgui_fftsink2_0.win)
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=2000000,
decimation=44100,
taps=None,
fractional_bw=None,
)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_file_source_0 = blocks.file_source(gr.sizeof_float*1, "test.txt", True)
self.analog_const_source_x_0 = analog.sig_source_f(0, analog.GR_CONST_WAVE, 0, 0, 1)
##################################################
# Connections
##################################################
self.connect((self.analog_const_source_x_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.blocks_file_source_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.wxgui_fftsink2_0, 0))
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate)
def main(top_block_cls=top_block, options=None):
tb = top_block_cls()
tb.Start(True)
tb.Wait()
if __name__ == '__main__':
main()
接收器（不适用于 Odroid）：
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: Top Block
# Generated: Tue Jan 5 20:44:14 2016
##################################################
from gnuradio import blocks
from gnuradio import digital
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from grc_gnuradio import blks2 as grc_blks2
from optparse import OptionParser
import osmosdr
import time
class top_block(gr.top_block):
def __init__(self):
gr.top_block.__init__(self, "Top Block")
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 32000
##################################################
# Blocks
##################################################
self.osmosdr_source_0 = osmosdr.source( args="numchan=" + str(1) + " " + "" )
self.osmosdr_source_0.set_sample_rate(2e6)
self.osmosdr_source_0.set_center_freq(2400e6, 0)
self.osmosdr_source_0.set_freq_corr(0, 0)
self.osmosdr_source_0.set_dc_offset_mode(0, 0)
self.osmosdr_source_0.set_iq_balance_mode(0, 0)
self.osmosdr_source_0.set_gain_mode(False, 0)
self.osmosdr_source_0.set_gain(0, 0)
self.osmosdr_source_0.set_if_gain(20, 0)
self.osmosdr_source_0.set_bb_gain(20, 0)
self.osmosdr_source_0.set_antenna("", 0)
self.osmosdr_source_0.set_bandwidth(1000, 0)
self.digital_gmsk_demod_0 = digital.gmsk_demod(
samples_per_symbol=2,
gain_mu=0.175,
mu=0.5,
omega_relative_limit=0.005,
freq_error=0.0,
verbose=False,
log=False,
)
self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vcc((1, ))
self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_float*1, "test", False)
self.blocks_file_sink_0.set_unbuffered(False)
self.blks2_packet_decoder_0 = grc_blks2.packet_demod_f(grc_blks2.packet_decoder(
access_code="",
threshold=0,
callback=lambda ok, payload: self.blks2_packet_decoder_0.recv_pkt(ok, payload),
),
)
##################################################
# Connections
##################################################
self.connect((self.blks2_packet_decoder_0, 0), (self.blocks_file_sink_0, 0))
self.connect((self.blocks_multiply_const_vxx_0, 0), (self.digital_gmsk_demod_0, 0))
self.connect((self.digital_gmsk_demod_0, 0), (self.blks2_packet_decoder_0, 0))
self.connect((self.osmosdr_source_0, 0), (self.blocks_multiply_const_vxx_0, 0))
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
def main(top_block_cls=top_block, options=None):
tb = top_block_cls()
tb.start()
try:
raw_input('Press Enter to quit: ')
except EOFError:
pass
tb.stop()
tb.wait()
if __name__ == '__main__':
main()
多谢！