22 Jan
2014
22 Jan
'14
9:46 p.m.
Haven't done a lot of testing, but it should now be possible to install gr-op25 (and
all of its prerequisites, including gnuradio) simply by
- cloning the pybombs repo
- cd to the toplevel ---- cd pybombs
- ./pybombs install gr-op25
Assuming no bugs, it should no longer be necessary to separately clone the gr-op25
repository, or to copy any recipes around... Also, the trunking changes have been merged
into gr-op25 master, so the 'git checkout' commands shouldn't be necessary any
more, either...
Once the process has been more thoroughly tested, I'll be updating the wiki with these
procedures
Best
Max
25 Jan
25 Jan
12:45 a.m.
New subject: gr-op25 recipe now in pybombs upstream [1 Attachment]
I did a complete reinstalled of everything last night and the master branch had everything
in it. I've attached an install log for your review.
I'm having RTL issues now, but it's not related to OP25 so I'll skip those
comments.
There are problems with the op25_repeater blocks in GRC though. Adding fsk4_slicer_fb,
p25_frame_assembler, and vocoder to the canvas produced the following error and crashes
GRC:
Showing: "/home/scott/Downloads/untitled.grc"
Traceback (most recent call last):
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/grc/gui/ActionHandler.py",
line 320, in _handle_action
self.get_flow_graph().update()
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/grc/gui/FlowGraph.py",
line 343, in update
self.create_labels()
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/grc/gui/Element.py",
line 72, in create_labels
for child in self.get_children():child.create_labels()
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/grc/gui/Block.py", line
142, in create_labels
markups = [param.get_markup() for param in self.get_params() if param.get_hide() not
in ('all', 'part')]
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/grc/python/Param.py",
line 217, in get_hide
lambda p: ' '.join([p._type, p._nports]), self.get_parent().get_ports())
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/grc/python/Param.py",
line 217, in <lambda>
lambda p: ' '.join([p._type, p._nports]), self.get_parent().get_ports())
TypeError: sequence item 0: expected string, instance found
Traceback (most recent call last):
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/grc/gui/DrawingArea.py",
line 138, in _handle_window_expose
self._flow_graph.draw(gc, self._pixmap)
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/grc/gui/FlowGraph.py",
line 312, in draw
element.draw(gc, window)
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/grc/gui/Block.py", line
198, in draw
window.draw_drawable(gc, self.horizontal_label, 0, 0, x+BLOCK_LABEL_PADDING,
y+(self.H-self.label_height)/2, -1, -1)
AttributeError: 'Block' object has no attribute 'horizontal_label'
Hope this is helpful..
-Scott
1:46 a.m.
I forgot to mention another error I encountered.. in the file
/gr-op25/op25/gr-op25_repeater/grc/op25_repeater_fsk4_slicer_fb.xml
I changed this
<make>op25_repeater.fsk4_slicer_fb($&slice_levels)</make>
to
<make>op25_repeater.fsk4_slicer_fb($slice_levels)</make>
-Scott
2:43 a.m.
Hi Scott
Thanks for the bug report. The amount of unfinished work is clearly excessive : )
Almost no GRC and XML work has been done so far, that I know of. Some of my early hacks
may have ended up in git, and it sounds like these issues may be caused by that - I'll
have to take a look. One of the problems is all of those blocks are fairly low level and
we need to wrap a lot of that funcionality into GNU Radio hierarchical blocks written in
python. These are typically set up as modulator / demodulator blocks which combine
channel filtering, demodulation, slicing, etc. into unified functional blocks. The latter
are the ones that should be exposed to GRC via XML....
Max
3:27 a.m.
Another bug to report... running the scope app with the -V option crahes
scott@decoder:~/pybombs/src/gr-op25/op25/gr-op25_repeater/apps$ ./scope.py --args
"rtl=0" -f 852.675e6 -S 250000 -N 'LNA:49' -v 15 -V
linux; GNU C++ version 4.6.3; Boost_105300; UHD_003.006.002-1-g9fd308b3
gr-osmosdr v0.1.0-64-gd960d111 (0.1.1git) gnuradio v3.7.2.1-159-g3fa56a46
built-in source types: file osmosdr fcd rtl rtl_tcp uhd hackrf rfspace
Using device #0 Realtek RTL2838UHIDIR SN: 00000048
Found Rafael Micro R820T tuner
gain: name: LNA range: start 0 stop 0 step 0
setting gain LNA to 49
supported sample rates 250000-2560000 step 24000
RTL Supported freq ranges 24000000-1766000000
Using Volk machine: sse3_32
Exact sample rate is: 250000.000414 Hz
set_center_freq: 852675000
Project 25 IMBE Encoder/Decoder Fixed-Point implementation
Developed by Pavel Yazev E-mail: pyazev(a)gmail.com
Version 1.0 (c) Copyright 2009
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; see the file ``LICENSE'' for details.
audio_oss_sink: plughw:0,0: No such file or directory
Traceback (most recent call last):
File "./scope.py", line 2792, in <module>
app = stdgui2.stdapp(p25_rx_block, "APCO P25 Receiver", 3)
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line
46, in __init__
wx.App.__init__ (self, redirect=False)
File "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line
7981, in __init__
self._BootstrapApp()
File "/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/_core.py", line
7555, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line
49, in OnInit
frame = stdframe (self.top_block_maker, self.title, self._nstatus)
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line
76, in __init__
self.panel = stdpanel (self, self, top_block_maker)
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line
98, in __init__
self.top_block = top_block_maker (frame, self, vbox, sys.argv)
File "./scope.py", line 230, in __init__
self.open_usrp()
File "./scope.py", line 1124, in open_usrp
self.__set_rx_from_osmosdr()
File "./scope.py", line 872, in __set_rx_from_osmosdr
self.__build_graph(self.src, capture_rate)
File "./scope.py", line 293, in __build_graph
self.audio_output = audio.sink(8000, self.options.audio_output, True)
File
"/home/scott/target/lib/python2.7/dist-packages/gnuradio/audio/audio_swig.py",
line 122, in make
return _audio_swig.sink_make(*args, **kwargs)
RuntimeError: audio_oss_sink
scott@decoder:~/pybombs/src/gr-op25/op25/gr-op25_repeater/apps$
4 a.m.
---In op25-dev(a)yahoogroups.com, <verymetl@...> wrote:
Another bug to report... running the scope app with
the -V option crahes
[snipped]
audio_oss_sink: plughw:0,0: No such file or directory
the above error message is the key. Debugging linux audio can sometimes be a pain, here
is one place to start:
http://gnuradio.org/doc/sphinx/audio/index.html
That page describes the audio sink block, the second parameter of which is the name of the
audio device, which is set using the -O option of scope.py. If your system uses
pulseaudio you can try '-O pulse' etc.
Another thing to try is to see if alsa is even installed:
dpkg-query -l | grep -i alsa
HTH
Max
5:05 a.m.
Sorry for the erroneous report Max.. I clearly have unresolved issues with the
gnuradio/pybombs install at this point. I'll try and read what the errors are telling
me before doing that again, sorry bud!
-Scott
3753
days inactive
3756
days old
6 comments
2 participants
participants (2)
-
ikj1234i＠yahoo.com -
verymetl＠hotmail.com