Re: [Discuss-gnuradio] Flow graph using RTL-SDR or OSMOSDR source doesn'

Indeed Marcus, I ll give the script a go as a last resort, i m curious to find out what causing it. To troubleshoot it I upgraded the working one on 3.6.2 running on ubuntu 11.4 to 3.6.4.1, and guess what I m facing the same issue reported initialy , it looks like it is related to the gnuradio version !

On May 5, 2013 11:29 PM, "Marcus D. Leech" <address@hidden> wrote:

On ubuntu 12.04.2 LTS running 3.6.4.1 , I can load the osmosdr_source_1rtl.grc and osmosdr_source_2rtl.grc, but same as my initial issue they don't execute, I get

----------------------------------------------------------------------------------------------------------------------------

linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.005.002-65-g265daa58

Using Volk machine: avx_64_mmx_orc
gr-osmosdr 2d9e29ee (0.0.1git) gnuradio v3.6.4.1-185-g8fda7aca
built-in device types: file fcd rtl rtl_tcp uhd

--------------------------------------------------------------------------------------------------------------------------------

(Interestingly if I use the RTL2832 Source from gr-baz module I can execute the Flow Graph on 12.04.2 LTS running 3.6.4.1 , but performance are not good at all compared to the RTLSDR Source one !! )

On the ubuntu 11.04 running 3.6.2, I can't even load the osmosdr_source_1rtl.grc and osmosdr_source_2rtl.grc, I get the following error

-------------------------------------------------------------------------------------------------------------------------------------------------------

Loading: "/root/Other/GNU_Radio_Related/gnu_radio_examples/receiver/osmosdr_source_1rtl.grc"
Error: Specification mandate value for attribute data-pjax-transient, line 22, column 40
>>> Failure
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/gnuradio/grc/gui/MainWindow.py", line 175, in new_page
    file_path=file_path,
File "/usr/local/lib/python2.7/dist-packages/gnuradio/grc/gui/NotebookPage.py", line 47, in __init__
    initial_state = flow_graph.get_parent().parse_flow_graph(file_path)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/grc/base/Platform.py", line 109, in parse_flow_graph
    ParseXML.validate_dtd(flow_graph_file, FLOW_GRAPH_DTD)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/grc/base/ParseXML.py", line 38, in validate_dtd
    xml = etree.parse(xml_file, parser=parser)
File "lxml.etree.pyx", line 2942, in lxml.etree.parse (src/lxml/lxml.etree.c:54187)
File "parser.pxi", line 1528, in lxml.etree._parseDocument (src/lxml/lxml.etree.c:79485)
File "parser.pxi", line 1557, in lxml.etree._parseDocumentFromURL (src/lxml/lxml.etree.c:79768)
File "parser.pxi", line 1457, in lxml.etree._parseDocFromFile (src/lxml/lxml.etree.c:78843)
File "parser.pxi", line 997, in lxml.etree._BaseParser._parseDocFromFile (src/lxml/lxml.etree.c:75698)
File "parser.pxi", line 564, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:71739)
File "parser.pxi", line 645, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:72614)
File "parser.pxi", line 585, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:71955)
XMLSyntaxError: Specification mandate value for attribute data-pjax-transient, line 22, column 40

-----------------------------------------------------------------------------------------------------------------------------------------------------------

Regards

Joe

On Sun, May 5, 2013 at 4:29 PM, Sreeraj Rajendran <address@hidden> wrote:

Hi,

Did you try example grc flowgraph provided by gr-osmosdr[1] on both of your machines?

[1]available in gr-osmosdr/apps folder (https://github.com/mjmdavis/gr-osmosdr/tree/master/apps)

---
Regards
Sreeraj Rajendran
http://home.iitb.ac.in/~rsreeraj

From: Joe D <address@hidden>
To: address@hidden
Sent: Sunday, 5 May 2013 6:49 AM
Subject: [Discuss-gnuradio] Flow graph using RTL-SDR or OSMOSDR source doesn't execute on 3.6.4.1

Hi All

I have a fresh install of ubuntu 12.04.2 LTS 64 bits with gnuradio v3.6.4.1-185-g8fda7aca.
Flow graph using RTL-SDR or OSMOSDR source doesn't execute. I get the following log

-----------------------------------------------------------------------------------
Executing: "/root/Other/GNU_Radio_Related/gnu_radio_examples/receiver/top_block.py"

linux; GNU C++ version 4.6.3; Boost_104601; UHD_003.005.002-65-g265daa58

Using Volk machine: avx_64_mmx_orc
gr-osmosdr 2d9e29ee (0.0.1git) gnuradio v3.6.4.1-185-g8fda7aca
built-in device types: file fcd rtl rtl_tcp uhd
-----------------------------------------------------------------------------------

Basically it does nothing after that, if I use the same Flow graph on another machine running ubuntu 11.04 64 bits with gnuradio 3.6.2 all is good, the log at launch is

-----------------------------------------------------------------------------------

Executing: "/root/Other/GNU_Radio_Related/gnu_radio_examples/receiver/top_block.py"

linux; GNU C++ version 4.5.2; Boost_104200; UHD_003.005.002-6-gf1108bd2

>>> gr_fir_ccc: using SSE
gr-osmosdr 871f0cc2 (0.0.1git) gnuradio 3.6.2
built-in device types: file fcd rtl rtl_tcp uhd
Using device #0 Generic RTL2832U SN: 77771111153705700
Found Elonics E4000 tuner
Exact sample rate is: 1000000.026491 Hz
Using Volk machine: avx_64_mmx_orc
>>> gr_fir_fff: using SSE

--------------------------------------------------------------------------------------

Both machine have rtl-sdr and gr-osmosdr installed
If for 3.6.4.1 I replace the source sink by a UHD USRP one or a Signal Source the Flow Graph executes properly

GNURadio has been installed manually by building the source as per the wiki, same for rtl-sdr and gr-osmosdr

(Attached the flow graph in question)

Regards
Joe

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Joe, why don't you use the build-gnuradio script. It takes care of many details that you might have missed, and will almost certainly
result in a working system for RTLSDR when you're done.
-- 
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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From:	Joe D
Subject:	Re: [Discuss-gnuradio] Flow graph using RTL-SDR or OSMOSDR source doesn't execute on 3.6.4.1
Date:	Mon, 6 May 2013 08:39:57 +1000