Dear all,
I am trying to implement Zigbee on usrp2 (Daughter board - RFX2400),
using ULCA ZIGBEE PHY from
https://cgran.org/browser/projects/ucla_zigbee_phy/branches/septikus
I have modified the <
https://cgran.org/browser/projects/ucla_zigbee_phy/branches/septikus/src/examples/cc2420_txtest.py>
a little bit, to test the transmission on USRP2, but i am getting
segmentation fault something like this :
send message 1:
Segmentation fault
However, receiver seems to work fine.
I have attached the python script for reference.
Some more details ,
OS : Ubuntu 10.04 LTS (Desktop)
Gnuradio and all the software were updated two days back.
--enable-single and --enable-shared configure options taken care during
fftw installation.
Could someone please help me out soon with this issue.
Thanks in advance,
Sun
#!/usr/bin/env python
#
# Transmitter of IEEE 802.15.4 RADIO Packets.
#
# Modified by: Thomas Schmid, Sanna Leidelof
#
from gnuradio import gr, eng_notation
from gnuradio import usrp2
from gnuradio import ucla
from gnuradio.ucla_blks import ieee802_15_4_pkt
from gnuradio.eng_option import eng_option
from optparse import OptionParser
import math, struct, time, sys
class transmit_path(gr.top_block):
def __init__(self, options):
gr.top_block.__init__(self)
self.normal_gain = 28000
self.u = usrp2.sink_32fc(options.interface, options.mac_addr)
dac_rate = self.u.dac_rate();
self.set_gain(self.u.gain_max()) # set max Tx gain
self._data_rate = 2000000
self._spb = 2
self._interp = int(128e6 / self._spb / self._data_rate)
self.fs = 128e6 / self._interp
self.u.set_interp(self._interp)
# transmitter
self.packet_transmitter = ieee802_15_4_pkt.ieee802_15_4_mod_pkts(self, spb=self._spb, msgq_limit=2)
self.gain = gr.multiply_const_cc (self.normal_gain)
self.connect(self.packet_transmitter, self.gain, self.u)
#self.filesink = gr.file_sink(gr.sizeof_gr_complex, 'rx_test.dat')
#self.connect(self.gain, self.filesink)
def set_gain(self, gain):
self.gain = gain
self.u.set_gain(gain)
def send_pkt(self, payload='', eof=False):
return self.packet_transmitter.send_pkt(0xe5, struct.pack("HHHH", 0xFFFF, 0xFFFF, 0x10, 0x10), payload, eof)
def main ():
parser = OptionParser (option_class=eng_option)
parser.add_option ("-c", "--cordic-freq", type="eng_float", default=2415000000,
help="set Tx cordic frequency to FREQ", metavar="FREQ")
parser.add_option ("-r", "--data-rate", type="eng_float", default=2000000)
parser.add_option ("-f", "--filename", type="string",
default="rx.dat", help="write data to FILENAME")
parser.add_option ("-g", "--gain", type="eng_float", default=35,
help="set Rx PGA gain in dB [0,70]")
parser.add_option ("-N", "--no-gui", action="store_true", default=False)
parser.add_option("-e", "--interface", type="string", default="eth0",
help="select Ethernet interface, default is eth0")
parser.add_option("-m", "--mac-addr", type="string", default="",
help="select USRP by MAC address, default is auto-select")
(options, args) = parser.parse_args ()
tb = transmit_path(options)
tb.start()
for i in range(10):
print "send message %d:"%(i+1,)
tb.send_pkt(struct.pack('9B', 0x1, 0x80, 0x80, 0xff, 0xff, 0x10, 0x0, 0x20, 0x0))
#this is an other example packet we could send.
#tb.send_pkt(struct.pack('BBBBBBBBBBBBBBBBBBBBBBBBBBB', 0x1, 0x8d, 0x8d, 0xff, 0xff, 0xbd, 0x0, 0x22, 0x12, 0xbd, 0x0, 0x1, 0x0, 0xff, 0xff, 0x8e, 0xff, 0xff, 0x0, 0x3, 0x3, 0xbd, 0x0, 0x1, 0x0, 0x0, 0x0))
time.sleep(1)
tb.wait()
if __name__ == '__main__':
main ()
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