Re: [Discuss-gnuradio] Need help with gr how to create a signal processing block template

[Tom Rondeau]

On Tue, May 25, 2010 at 10:26 PM, Hassaan R. <address@hidden> wrote:
>
> On Tue, May 25, 2010 at 7:08 AM, Eric Blossom <address@hidden> wrote:
>>
>> On Tue, May 25, 2010 at 08:24:21AM +0600, Hassaan R. wrote:
>> > Dear Eric,
>> >
>> > Still working on it, hopefully will get a solution soon. Thanks for your
>> > reply, I'll focus on the Makefiles now to find the answer, I've been
>> > just
>> > going through stuff all over the place and working on Octave side by
>> > side. I
>> > will try my best to follow the guidelines in the link you gave me for
>> > reporting errors and apologize for the incomplete post, but rest assured
>> > I
>> > am using all the suggestions and information as best as possible. I'll
>> > continue reading those manuals after documenting all that I have done so
>> > far.
>> >
>> > Regards,
>> > Hassaan
>>
>> Thanks.  No problem.
>>
>> I suspect that you'll need to add the matlab libs using
>>
>>  libfoo_la_LIBADD = -llibmatlab
>>
>> or something similar.  If it's not in /usr/lib or /usr/lib64, you'll
>> probably need to use something like
>>
>>  libfoo_la_LIBADD = -L/opt/path-to-lib-dir -llibmatlab
>>
>> Eric
>
> It was indeed a pathing issue. I used -rpath and -L to gather all the
> required libraries, had to spend alot of time finding all the ones I needed
> though using ldd and hit n trial testing, set them to LIBS inside the
> Makefile and now they are passed to the .la files as dependencies and are
> called whenever linking is done. Everything is in order now and I am getting
> my block compiled and installed. Thanks alot for your help and guidance.
> Next step is sorting out the data types, I/O and understanding how the
> functions will be called so I can use the various .m files that I've
> generated in Matlab and Octave, I'm reading up on different tutorials and
> examples but would be great if you can direct me to some guides or
> references which use external libraries. For I/O I believe the gnu examples
> will be enough but I didn't find any example yet which uses external
> libraries/wrapped functions like I am doing. I'll just keep on looking,
> thanks again for your reply and time.
> Regards,
> Hassaan


Glad you got it working!

There are tons of examples in GNU Radio, considering all of the
dependencies we require. You can start with FFTW by looking at the
gri_fft block. Also, the gr-qtgui has some complicated dependencies on
QT and QWT libraries.

Tom