[USRP-users] Error in RFNoC grc with OOT module

John Medrano john.d.medrano at gmail.com
Fri Oct 6 12:31:36 EDT 2017


Hello,

We found two errors in the file:

1. samp_rate parameter is not defined.
2. There is an indention error. The lines with "self.$(id).set_arg("spp",
$spp)" should not have leading spaces.

Thanks,
John

On Thu, Oct 5, 2017 at 11:38 AM, Avila, Jose A via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Thanks for the response and attached is the XML file, also the last commit
> is
>
>
>
>
>
> *commit 23508458f31e8b50264045ee0a34d07c7abc807d Author: Derek Kozel
> <derek.kozel at ettus.com <derek.kozel at ettus.com>> Date:   Thu Jun 29 08:37:14
> 2017 -0700 *
>
> ------------------------------
> *From:* Nicolas Cuervo <nicolas.cuervo at ettus.com>
> *Sent:* Wednesday, October 4, 2017 10:39:43 PM
> *To:* Avila, Jose A
> *Cc:* usrp-users at lists.ettus.com
> *Subject:* Re: [USRP-users] Error in RFNoC grc with OOT module
>
> Hello Jose,
>
> this might be an indentation problem at the XML that is located at
> your_oot/grc/your_block.xml. Do you mind sharing with us that file?
>
> Also, I remember seeing this error in earlier versions of the tool, so it
> would be interesting to know if it still happens, and under what
> conditions. Could you please tell us which is the last commit that you are
> pointing to at "gr-ettus"? To check, please go to your gr-ettus repository
> and run:
>
>     $ git log
>
> If it is not updated, it is always recommended to update.
>
> Regards,
> -N
>
> On Wed, Oct 4, 2017 at 11:02 PM, Avila, Jose A via USRP-users <
> usrp-users at lists.ettus.com> wrote:
>
>> 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").toByteA
>> rray())
>>
>>         ##################################################
>>         # 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.x
>> mlrpc_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
>>
>>
>>
>> _______________________________________________
>> USRP-users mailing list
>> USRP-users at lists.ettus.com
>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>>
>>
>
> _______________________________________________
> USRP-users mailing list
> USRP-users at lists.ettus.com
> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
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