gnuradio 创建cos_source
C++教程 ys_linux@computer:~$ gr_modtool nm kcd Creating out-of-tree module in ./gr-kcd... Done. Use 'gr_modtool add' to add a new block to this currently empty module. ys_linux@computer:~$ cd gr-kcd/ ys_linux@computer:~/gr-kcd$ ls apps CMakeLists.txt examples include MANIFEST.md swig cmake docs grc lib python ys_linux@computer:~/gr-kcd$ gr_modtool add my_qpsk_demod_cb GNU Radio module name identified: tutorial ('sink', 'source', 'sync', 'decimator', 'interpolator', 'general', 'tagged_stream', 'hier', 'noblock') Enter block type: general Language (python/cpp): C++ Language (python/cpp): cpp Language: C++ Block/code identifier: my_qpsk_demod_cb Enter valid argument list, including default arguments: int freq ,float amp Add Python QA code? [Y/n] Add C++ QA code? [y/N] Y Adding file 'lib/my_qpsk_demod_cb_impl.h'... Adding file 'lib/my_qpsk_demod_cb_impl.cc'... Adding file 'include/tutorial/my_qpsk_demod_cb.h'... Adding file 'lib/qa_my_qpsk_demod_cb.cc'... Adding file 'lib/qa_my_qpsk_demod_cb.h'... Editing swig/tutorial_swig.i... Adding file 'python/qa_my_qpsk_demod_cb.py'... Editing python/CMakeLists.txt... Adding file 'grc/tutorial_my_qpsk_demod_cb.xml'... Editing grc/CMakeLists.txt...
然后编辑代码
/* -*- c++ -*- */ /* * Copyright 2017 <+YOU OR YOUR COMPANY+>. * * This is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3, or (at your option) * any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this software; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, * Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <gnuradio/io_signature.h> #include "cos_source_impl.h" #include "pmt/pmt.h" using namespace std; namespace gr { namespace kcd { cos_source::sptr cos_source::make(int freq ,float amp) { std::cout << "my_cout"<<endl; pmt::pmt_t P = pmt::from_long(23); std::cout << P << std::endl; pmt::pmt_t P2 = pmt::from_complex(gr_complex(0, 1)); // Alternatively: pmt::from_complex(0, 1) std::cout << P2 << std::endl; std::cout << pmt::is_complex(P2) << std::endl; return gnuradio::get_initial_sptr (new cos_source_impl(freq, amp)); } /* * The private constructor */ cos_source_impl::cos_source_impl(int freq ,float amp) : gr::sync_block("cos_source", gr::io_signature::make(0, 0, 0), gr::io_signature::make(1, 1, sizeof(float))) {} /* * Our virtual destructor. */ cos_source_impl::~cos_source_impl() { } int cos_source_impl::work(int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items) { // const <+ITYPE+> *in = (const <+ITYPE+> *) input_items[0]; float *out = (float *) output_items[0]; for (int i = 0;i<noutput_items;i++ ) { // out[i] = kcd_source_sincos(i); if (num < 19) { num++; } else { num=0; } out[i]=cos(3.1415926535898*2*num/20); // out[i]=noutput_items; } // Do <+signal processing+> // Tell runtime system how many output items we produced. return noutput_items; } } /* namespace kcd */ } /* namespace gr */
头文件
/* -*- c++ -*- */ /* * Copyright 2017 <+YOU OR YOUR COMPANY+>. * * This is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3, or (at your option) * any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this software; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, * Boston, MA 02110-1301, USA. */ #ifndef INCLUDED_KCD_COS_SOURCE_IMPL_H #define INCLUDED_KCD_COS_SOURCE_IMPL_H #include <kcd/cos_source.h> namespace gr { namespace kcd { class cos_source_impl : public cos_source { private: // Nothing to declare in this block. public: cos_source_impl(int freq ,float amp); ~cos_source_impl(); int num=0; int number=0; // Where all the action really happens int work(int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items); }; } // namespace kcd } // namespace gr #endif /* INCLUDED_KCD_COS_SOURCE_IMPL_H */
修改xml
<?xml version="1.0"?> <block> <name>cos_source</name> <key>kcd_cos_source</key> <category>[kcd]</category> <import>import kcd</import> <make>kcd.cos_source($freq, $amp)</make> <!-- Make one 'param' node for every Parameter you want settable from the GUI. Sub-nodes: * name * key (makes the value accessible as $keyname, e.g. in the make node) * type --> <param> <name>freq</name> <key>freq</key> <type>int</type> </param> <param> <name>amp</name> <key>amp</key> <type>float</type> </param> <!-- Make one 'sink' node per input. Sub-nodes: * name (an identifier for the GUI) * type * vlen * optional (set to 1 for optional inputs) --> <!-- <sink> <name>in</name> <type> e.g. int, float, complex, byte, short, xxx_vector, ...</type> </sink> --> <!-- Make one 'source' node per output. Sub-nodes: * name (an identifier for the GUI) * type * vlen * optional (set to 1 for optional inputs) --> <source> <name>out</name> <type>float<!-- e.g. int, float, complex, byte, short, xxx_vector, ...--></type> </source> </block>
然后打包
ys_linux@computer:~/gr-tutorial$ cmake ../ $make $sudo make intall $sudo ldconfig
然后启动gnuradio
