Re: [Discuss-gnuradio] error: GNURADIO filter not found, while making own custom block in gnuradio

[Marcus Müller]

Hey Abhishek,

that sounds solvable :)
Uninstall the Ubuntu GNU Radio version with apt-get remove, rebuild from source, install, and try again.

By the way, please reply to the emails on the mailing list, and not to the digest, and at least change the subject of the reply. I nearly missed your email because it had the subject "Discuss-gnuradio Digest, Vol 148, Issue 8" instead of "error: GNURADIO filter not found, while making own custom block in gnuradio".

Greetings,
Marcus

On 03/07/2015 06:14 PM, Abhishek Shukla wrote:

hey Marcus,

I am working on Ubuntu 14.10, initially i installed GNU radio directly through "apt-get" command, at that time i was getting Gnu radio_runtime package error. In order to rectify the error, i downloaded zip file from Github website  "https://github.com/gnuradio/gnuradio"
and build all the dependencies using cmake and make command....

i am not getting how to rectify this,

any help will be appreciated,

Thanks in advance,

Abhishek.

On Sat, Mar 7, 2015 at 10:30 PM, <address@hidden> wrote:

Send Discuss-gnuradio mailing list submissions to
        address@hidden

To subscribe or unsubscribe via the World Wide Web, visit
        https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
or, via email, send a message with subject or body 'help' to
        address@hidden

You can reach the person managing the list at
        address@hidden

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Discuss-gnuradio digest..."


Today's Topics:

   1. Decoding Morse code (Mike Markowski)
   2. Re: Decoding Morse code (Martin Braun)
   3. Re: Decoding Morse code (Iain Young, G7III)
   4. Decimation of multiple streams (Ali Riaz)
   5. Re: Decoding Morse code (Mike Markowski)
   6. error: GNURADIO filter not found, while making own custom
      block in gnuradio (Abhishek Shukla)
   7. Re: Decimation of multiple streams (Marcus M?ller)
   8. Re: error: GNURADIO filter not found, while making own custom
      block in gnuradio (Marcus M?ller)


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

Message: 1
Date: Fri, 06 Mar 2015 14:19:42 -0500
From: Mike Markowski <address@hidden>
To: address@hidden
Subject: [Discuss-gnuradio] Decoding Morse code
Message-ID: <address@hidden>
Content-Type: text/plain; charset=utf-8; format=flowed

A few weeks ago I started learning my way around gnuradio and am making
progress, but could use advice from experienced users.

I've been making something of an online lab notebook recording my
efforts in gnuradio at:

   http://udel.edu/~mm/gr/

At the very bottom of that page is a section named "Morse Code Decoder"
where I show a flowgraph I've come up with.  I can't figure out how to
take it farther than that, however.  I believe I need to learn how to
write an out of tree demodulator.  If I'm wrong, maybe someone can give
me a push in the right direction regarding how to use existing blocks.
If I'm correct, what would be the best modulator to study - BPSK?
("Best," meaning easiest for someone new to gnuradio to understand.)

Thanks very much,
Mike Markowski



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

Message: 2
Date: Fri, 06 Mar 2015 12:30:04 -0800
From: Martin Braun <address@hidden>
To: address@hidden
Subject: Re: [Discuss-gnuradio] Decoding Morse code
Message-ID: <address@hidden>
Content-Type: text/plain; charset=windows-1252; format=flowed

Mike,

have you gone through our beginner's tutorials?

http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorials

M

On 06.03.2015 11:19, Mike Markowski wrote:
> A few weeks ago I started learning my way around gnuradio and am making
> progress, but could use advice from experienced users.
>
> I've been making something of an online lab notebook recording my
> efforts in gnuradio at:
>
>    http://udel.edu/~mm/gr/
>
> At the very bottom of that page is a section named "Morse Code Decoder"
> where I show a flowgraph I've come up with.  I can't figure out how to
> take it farther than that, however.  I believe I need to learn how to
> write an out of tree demodulator.  If I'm wrong, maybe someone can give
> me a push in the right direction regarding how to use existing blocks.
> If I'm correct, what would be the best modulator to study - BPSK?
> ("Best," meaning easiest for someone new to gnuradio to understand.)
>
> Thanks very much,
> Mike Markowski
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio




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

Message: 3
Date: Fri, 06 Mar 2015 21:08:40 +0000
From: "Iain Young, G7III" <address@hidden>
To: address@hidden
Subject: Re: [Discuss-gnuradio] Decoding Morse code
Message-ID: <address@hidden>
Content-Type: text/plain; charset=windows-1252; format=flowed

On 06/03/15 19:19, Mike Markowski wrote:

> A few weeks ago I started learning my way around gnuradio and am making
> progress, but could use advice from experienced users.
>
> I've been making something of an online lab notebook recording my
> efforts in gnuradio at:
>
>    http://udel.edu/~mm/gr/
>
> At the very bottom of that page is a section named "Morse Code Decoder"
> where I show a flowgraph I've come up with.  I can't figure out how to
> take it farther than that, however.  I believe I need to learn how to
> write an out of tree demodulator.  If I'm wrong, maybe someone can give
> me a push in the right direction regarding how to use existing blocks.
> If I'm correct, what would be the best modulator to study - BPSK?
> ("Best," meaning easiest for someone new to gnuradio to understand.)

I would pass this through a threshold block, followed by a float to
char, then out to a file (pipe) or UDP socket.

Then write your own code to take in the stream of 1's and 0's, and
decode the morse that way.

I essentially do this with my SDR radio clocks, but then I'm just
looking for a pulse of 100, 200, or 500msec, but the concept and the
theory are the same. I just used getc() and stdin.

For my purposes I dropped it down to a 1kHz stream of 1's and 0's
(actually by use of a Goertzel filter as I was tuning slightly off for
debug and able to hear it purposes!), but a Rational Re-sampler would
do just as well.

Auto detecting speed can be done - I actually wrote a prototype for use
with the CW ID of the Russian BETA Time Stations, that essentially
took a number of pulse's and gaps, worked out the differences, then
decoded the next set of dits and dahs. To be honest it was pretty
awful, but then I just needed to decode two numbers...


Iain




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

Message: 4
Date: Fri, 6 Mar 2015 18:08:37 -0600
From: Ali Riaz <address@hidden>
To: "address@hidden" <address@hidden>
Subject: [Discuss-gnuradio] Decimation of multiple streams
Message-ID:
        <CAAv_1_LDCBthLQjkaL6v=address@hidden>
Content-Type: text/plain; charset="utf-8"

Hey guys,

I just had a quick question; if we have multiple streams that need to be
decimated, is there a fast way to go about doing that in GNURadio
Companion? How would you do it?

Here's a picture of my flow graph: http://imgur.com/a/a0KCX

Thank you for your help!

Best,
Ali
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gnu.org/archive/html/discuss-gnuradio/attachments/20150306/ee12606a/attachment.html>

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

Message: 5
Date: Fri, 06 Mar 2015 19:29:21 -0500
From: Mike Markowski <address@hidden>
To: address@hidden
Subject: Re: [Discuss-gnuradio] Decoding Morse code
Message-ID: <address@hidden>
Content-Type: text/plain; charset=utf-8; format=flowed

On 03/06/2015 03:30 PM, Martin Braun wrote:
> Mike,
>
> have you gone through our beginner's tutorials?  [...]

Martin, I will revisit them.  At this early stage, at each iteration I
absorb some more.  Your note implies my answer is there, so off I go...

On 03/06/2015 04:08 PM, Iain Young, G7III wrote:
> I would pass this through a threshold block, followed by a float to
> char, then out to a file (pipe) or UDP socket.
>
> Then write your own code to take in the stream of 1's and 0's, and
> decode the morse that way.  [...]

Thanks, Iain, I hadn't thought of passing the info to another program.
I hope to keep it self-contained in gnuradio, but if that fails I'll use
your idea.  It would certainly be easy to timestamp each incoming sample
that way!

Thanks very much, guys,
Mike



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

Message: 6
Date: Sat, 7 Mar 2015 10:30:11 +0530
From: Abhishek Shukla <address@hidden>
To: address@hidden
Subject: [Discuss-gnuradio] error: GNURADIO filter not found,   while
        making own custom block in gnuradio
Message-ID:
        <address@hidden>
Content-Type: text/plain; charset="utf-8"

While making own custom block "derivative_ff" using method specified in "
https://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModulesConfig"
on Gnuradio 3.7.3 and for OS ubuntu 4.10, following error struck me while
compiling the file using "cmake ../".
address@hidden:~/gnuradio-master/gr-howto/build$ cmake ../
-- Build type not specified: defaulting to release.
-- Boost version: 1.55.0
-- Found the following Boost libraries:
--   filesystem
--   system
Checking for GNU Radio Module: RUNTIME
 * INCLUDES=/usr/local/include
 *
LIBS=/usr/local/lib/libgnuradio-runtime.so;/usr/local/lib/libgnuradio-pmt.so
GNURADIO_RUNTIME_FOUND = TRUE
Checking for GNU Radio Module: FILTER
-- checking for module 'gnuradio-filter'
--   package 'gnuradio-filter' not found
 * INCLUDES=GNURADIO_FILTER_INCLUDE_DIRS-NOTFOUND
 * LIBS=GNURADIO_FILTER_LIBRARIES_gnuradio-filter-NOTFOUND
-- Could NOT find GNURADIO_FILTER (missing:  GNURADIO_FILTER_LIBRARIES
GNURADIO_FILTER_INCLUDE_DIRS)
GNURADIO_FILTER_FOUND = FALSE
CMake Error at /usr/local/lib/cmake/gnuradio/GnuradioConfig.cmake:110
(message):
  Required GNU Radio Component: FILTER missing!
Call Stack (most recent call first):
  /usr/local/lib/cmake/gnuradio/GnuradioConfig.cmake:127 (GR_MODULE)
  CMakeLists.txt:93 (find_package)


-- Configuring incomplete, errors occurred!
See also
"/home/abhishek/gnuradio-master/gr-howto/build/CMakeFiles/CMakeOutput.log".

Any suggestions will be appreciated,
Thanks in advance,
Abhishek.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gnu.org/archive/html/discuss-gnuradio/attachments/20150307/1371d43c/attachment.html>

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

Message: 7
Date: Sat, 07 Mar 2015 10:11:16 +0100
From: Marcus M?ller <address@hidden>
To: address@hidden
Subject: Re: [Discuss-gnuradio] Decimation of multiple streams
Message-ID: <address@hidden>
Content-Type: text/plain; charset="windows-1252"

Hi Ali,

no, there's no easy way to have N identical things in GRC.
However, I'm pretty sure you're misusing vector_to_streamS.
There's vector_to_streamS and vector_to_stream, and the second is what
you usually want when converting a vector to streams of samples.

Greetings,
Marcus

On 03/07/2015 01:08 AM, Ali Riaz wrote:
> Hey guys,
>
> I just had a quick question; if we have multiple streams that need to
> be decimated, is there a fast way to go about doing that in GNURadio
> Companion? How would you do it?
>
> Here's a picture of my flow graph: http://imgur.com/a/a0KCX
>
> Thank you for your help!
>
> Best,
> Ali
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gnu.org/archive/html/discuss-gnuradio/attachments/20150307/895f6405/attachment.html>

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

Message: 8
Date: Sat, 07 Mar 2015 10:14:12 +0100
From: Marcus M?ller <address@hidden>
To: address@hidden
Subject: Re: [Discuss-gnuradio] error: GNURADIO filter not found,
        while making own custom block in gnuradio
Message-ID: <address@hidden>
Content-Type: text/plain; charset="windows-1252"

Hi Abhishek,

how did you install GNU Radio?
Usually, gr-filter is available, but if some dependencies were missing
at build time, it might have been omitted.

Greetings,
Marcus

On 03/07/2015 06:00 AM, Abhishek Shukla wrote:
> While making own custom block "derivative_ff" using method specified
> in
> "https://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModulesConfig"
> on Gnuradio 3.7.3 and for OS ubuntu 4.10, following error struck me
> while compiling the file using "cmake ../".
> address@hidden:~/gnuradio-master/gr-howto/build$
> cmake ../
> -- Build type not specified: defaulting to release.
> -- Boost version: 1.55.0
> -- Found the following Boost libraries:
> --   filesystem
> --   system
> Checking for GNU Radio Module: RUNTIME
>  * INCLUDES=/usr/local/include
>  *
> LIBS=/usr/local/lib/libgnuradio-runtime.so;/usr/local/lib/libgnuradio-pmt.so
> GNURADIO_RUNTIME_FOUND = TRUE
> Checking for GNU Radio Module: FILTER
> -- checking for module 'gnuradio-filter'
> --   package 'gnuradio-filter' not found
>  * INCLUDES=GNURADIO_FILTER_INCLUDE_DIRS-NOTFOUND
>  * LIBS=GNURADIO_FILTER_LIBRARIES_gnuradio-filter-NOTFOUND
> -- Could NOT find GNURADIO_FILTER (missing:  GNURADIO_FILTER_LIBRARIES
> GNURADIO_FILTER_INCLUDE_DIRS)
> GNURADIO_FILTER_FOUND = FALSE
> CMake Error at /usr/local/lib/cmake/gnuradio/GnuradioConfig.cmake:110
> (message):
>   Required GNU Radio Component: FILTER missing!
> Call Stack (most recent call first):
>   /usr/local/lib/cmake/gnuradio/GnuradioConfig.cmake:127 (GR_MODULE)
>   CMakeLists.txt:93 (find_package)
>
>
> -- Configuring incomplete, errors occurred!
> See also
> "/home/abhishek/gnuradio-master/gr-howto/build/CMakeFiles/CMakeOutput.log".
>
> Any suggestions will be appreciated,
> Thanks in advance,
> Abhishek.
>
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gnu.org/archive/html/discuss-gnuradio/attachments/20150307/3e2d042e/attachment.html>

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

_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio


End of Discuss-gnuradio Digest, Vol 148, Issue 8
************************************************

_______________________________________________
Discuss-gnuradio mailing list
address@hidden
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio