Re: [Discuss-gnuradio] Code for GRC blocks

[Ben Reynwar]

First of all take a look at the generated python file.

The block constructors will be things like gr.head, digital.chunks_to_symbols_bc.  The blocks may be implemented in python, by stringing together existing blocks, or they may be implemented in C++.  The python subpackage ("gr" and "digital" here) indicate what subdirectory the files will be in ("gr" corresponds to "gnuradio-core", "digital" to "gr-digital").  I then use 'find' to get the files of interest.

e.g. (assuming a unix-like system)

$ cd gnuradio-core

$ find . -name "*head*"

./src/lib/general/gr_head.cc

./src/lib/general/gr_head.h

./src/lib/general/gr_head.i

./src/lib/general/gr_skiphead.cc

./src/lib/general/gr_skiphead.h

./src/lib/general/gr_skiphead.i

./src/python/gnuradio/gr/qa_head.py

./src/python/gnuradio/gr/qa_skiphead.py

$ cd ../gr-digital

$ find . -name "*chunks_to_symbols*"

find . -name "*chunks_to_symbols*"

./grc/digital_chunks_to_symbols.xml

./include/digital_chunks_to_symbols_XX.h.t

./lib/digital_chunks_to_symbols_XX.cc.t

./python/qa_chunks_to_symbols.py

./swig/digital_chunks_to_symbols_XX.i.t

Sometimes this won't find the python hierarchical files.

So for "digital.psk_mod" I'd use something like

$  cd gr-digital

$ grep -r "class psk_mod" .

./python/psk.py:class psk_mod(generic_mod):

On Tue, Jan 15, 2013 at 7:57 AM, Ghulam Rasool Begh <address@hidden> wrote:

Hi all,

I am new to Gnuradio and learnt few tutorials regarding use of GUI of Gnuradio.

How can I find the code of the blocks used in GR Companion.

Regards

G R Begh

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