Hello we are developing an OOT module following the tutorial, but similar to
siggen, but are currently encountering an error that comes up with
./testtwochannel.py
The error that comes up is the following
File "./testtwochannel.py", line 97
self.siggen2ch_twochannelsiggen_0 = Template error:
siggen2ch.twochannelsiggen(
^
SyntaxError: invalid syntax
The file in question is the following:
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
##################################################
# GNU Radio Python Flow Graph
# Title: Testtwochannel
# Generated: Wed Oct 4 14:35:59 2017
##################################################
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 PyQt4 import Qt
from gnuradio import eng_notation
from gnuradio import gr
from gnuradio import qtgui
from gnuradio import uhd
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
import SimpleXMLRPCServer
import ettus
import siggen2ch
import sip
import sys
import threading
from gnuradio import qtgui
class testtwochannel(gr.top_block, Qt.QWidget):
def __init__(self):
gr.top_block.__init__(self, "Testtwochannel")
Qt.QWidget.__init__(self)
self.setWindowTitle("Testtwochannel")
qtgui.util.check_set_qss()
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "testtwochannel")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 10e6
self.waveform = waveform = "SINE_WAVE"
self.ip_addr = ip_addr = "192.168.10.100"
self.gain = gain = 1.0
self.freq = freq = samp_rate/10
self.enable = enable = False
self.device3 = device3 = ettus.device3(uhd.device_addr_t(
",".join(('type=e3x0', "")) ))
self.ampl_q = ampl_q = 1
self.ampl_i = ampl_i = 1
##################################################
# Blocks
##################################################
self.xmlrpc_server_0 =
SimpleXMLRPCServer.SimpleXMLRPCServer(('0.0.0.0', 8080), allow_none=True)
self.xmlrpc_server_0.register_instance(self)
self.xmlrpc_server_0_thread =
threading.Thread(target=self.xmlrpc_server_0.serve_forever)
self.xmlrpc_server_0_thread.daemon = True
self.xmlrpc_server_0_thread.start()
self.uhd_rfnoc_streamer_fifo_0 = ettus.rfnoc_generic(
self.device3,
uhd.stream_args( # TX Stream Args
cpu_format="fc32",
otw_format="sc16",
args="gr_vlen={0},{1}".format(1, "" if 1 == 1 else
"spp={0}".format(1)),
),
uhd.stream_args( # RX Stream Args
cpu_format="fc32",
otw_format="sc16",
args="gr_vlen={0},{1}".format(1, "" if 1 == 1 else
"spp={0}".format(1)),
),
"FIFO", -1, -1,
)
self.siggen2ch_twochannelsiggen_0 = Template error:
siggen2ch.twochannelsiggen(
self.device3,
uhd.stream_args( # TX Stream Args
cpu_format="fc32",
otw_format="sc16",
args="gr_vlen={0},{1}".format(${grvlen}, "" if $grvlen
== 1 else "spp={0}".format($grvlen)),
),
uhd.stream_args( # RX Stream Args
cpu_format="fc32",
otw_format="sc16",
args="gr_vlen={0},{1}".format(${grvlen}, "" if $grvlen
== 1 else "spp={0}".format($grvlen)),
),
$block_index,
$device_index
)
self.$(id).set_arg("spp", $spp)
self.$(id).set_arg("frequency1", ((2*$frequency1)/$samp_rate))
self.$(id).set_arg("cartesian1", $cartesian1)
self.$(id).set_arg("frequency2", ((2*$frequency2)/$samp_rate))
self.$(id).set_arg("cartesian2", $cartesian2)
self.$(id).set_arg("gain", $gain)
self.$(id).set_arg("enable", $enable)
cannot find 'samp_rate'
self.qtgui_freq_sink_x_0 = qtgui.freq_sink_c(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
"", #name
1 #number of inputs
)
self.qtgui_freq_sink_x_0.set_update_time(0.10)
self.qtgui_freq_sink_x_0.set_y_axis(-140, 10)
self.qtgui_freq_sink_x_0.set_y_label('Relative Gain', 'dB')
self.qtgui_freq_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, 0.0, 0,
"")
self.qtgui_freq_sink_x_0.enable_autoscale(False)
self.qtgui_freq_sink_x_0.enable_grid(False)
self.qtgui_freq_sink_x_0.set_fft_average(1.0)
self.qtgui_freq_sink_x_0.enable_axis_labels(True)
self.qtgui_freq_sink_x_0.enable_control_panel(False)
if not True:
self.qtgui_freq_sink_x_0.disable_legend()
if "complex" == "float" or "complex" == "msg_float":
self.qtgui_freq_sink_x_0.set_plot_pos_half(not True)
labels = ['', '', '', '', '',
'', '', '', '', '']
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["blue", "red", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "dark blue"]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_freq_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_freq_sink_x_0.set_line_label(i, labels[i])
self.qtgui_freq_sink_x_0.set_line_width(i, widths[i])
self.qtgui_freq_sink_x_0.set_line_color(i, colors[i])
self.qtgui_freq_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_freq_sink_x_0_win =
sip.wrapinstance(self.qtgui_freq_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_freq_sink_x_0_win)
##################################################
# Connections
##################################################
self.connect((self.uhd_rfnoc_streamer_fifo_0, 0),
(self.qtgui_freq_sink_x_0, 0))
self.device3.connect(self.siggen2ch_twochannelsiggen_0.get_block_id(),
0, self.uhd_rfnoc_streamer_fifo_0.get_block_id(), 0)
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "testtwochannel")
self.settings.setValue("geometry", self.saveGeometry())
event.accept()
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.siggen2ch_twochannelsiggen_0.Template error: set_arg("frequency1",
((2*$frequency1)/$self.samp_rate))
cannot find 'samp_rate'
self.siggen2ch_twochannelsiggen_0.Template error: set_arg("frequency2",
((2*$frequency2)/$self.samp_rate))
cannot find 'samp_rate'
self.qtgui_freq_sink_x_0.set_frequency_range(0, self.samp_rate)
self.set_freq(self.samp_rate/10)
def get_waveform(self):
return self.waveform
def set_waveform(self, waveform):
self.waveform = waveform
def get_ip_addr(self):
return self.ip_addr
def set_ip_addr(self, ip_addr):
self.ip_addr = ip_addr
def get_gain(self):
return self.gain
def set_gain(self, gain):
self.gain = gain
def get_freq(self):
return self.freq
def set_freq(self, freq):
self.freq = freq
def get_enable(self):
return self.enable
def set_enable(self, enable):
self.enable = enable
def get_device3(self):
return self.device3
def set_device3(self, device3):
self.device3 = device3
def get_ampl_q(self):
return self.ampl_q
def set_ampl_q(self, ampl_q):
self.ampl_q = ampl_q
def get_ampl_i(self):
return self.ampl_i
def set_ampl_i(self, ampl_i):
self.ampl_i = ampl_i
def main(top_block_cls=testtwochannel, options=None):
from distutils.version import StrictVersion
if StrictVersion(Qt.qVersion()) >= StrictVersion("4.5.0"):
style = gr.prefs().get_string('qtgui', 'style', 'raster')
Qt.QApplication.setGraphicsSystem(style)
qapp = Qt.QApplication(sys.argv)
tb = top_block_cls()
tb.start()
tb.show()
def quitting():
tb.stop()
tb.wait()
qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
qapp.exec_()
if __name__ == '__main__':
main()
Thank you
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