Here is the file . I wrote std::cout in the work() , why I don't see the
output from this file on terminal after rebuilding ?!
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "frequency_modulator_fc_impl.h"
#include <gnuradio/io_signature.h>
#include <gnuradio/fxpt.h>
#include <math.h>
#include <boost/math/special_functions/trunc.hpp>
namespace gr {
namespace analog {
frequency_modulator_fc::sptr
frequency_modulator_fc::make(double sensitivity)
{
return gnuradio::get_initial_sptr
(new frequency_modulator_fc_impl(sensitivity));
}
frequency_modulator_fc_impl::frequency_modulator_fc_impl(double
sensitivity)
: sync_block("frequency_modulator_fc",
io_signature::make(1, 1, sizeof(float)),
io_signature::make(1, 1, sizeof(gr_complex))),
d_sensitivity(sensitivity), d_phase(0)
{
}
frequency_modulator_fc_impl::~frequency_modulator_fc_impl()
{
}
int
frequency_modulator_fc_impl::work(int noutput_items,
gr_vector_const_void_star
&input_items,
gr_vector_void_star &output_items)
{
const float *in = (const float*)input_items[0];
gr_complex *out = (gr_complex*)output_items[0];
for(int i = 0; i < noutput_items; i++) {
std::cout<<"d_phase "<<d_phase<<std::endl;
d_phase = d_phase + d_sensitivity * in[i];
std::cout<<"d_sensitivity "<<d_sensitivity<<std::endl;
std::cout<<"in[i] "<<in[i]<<"where i] "<<i<<std::endl;
std::cout<<"then d_phase= "<<d_phase<<std::endl;
while(d_phase > (float)(M_PI)){
d_phase -= (float)(2.0 * M_PI);
std::cout<<"d_ph>MPI then d_ph= "<<d_phase<<std::endl;
}
while(d_phase < (float)(-M_PI)){
d_phase += (float)(2.0 * M_PI);
std::cout<<"d_oh<M_PI then d_ph= "<<d_phase<<std::endl;
}
float oi, oq;
gr_int32 angle = gr::fxpt::float_to_fixed (d_phase);
gr::fxpt::sincos(angle, &oq, &oi);
std::cout<<"angle "<<angle<<" oq "<<oq<<" oi "<<oi<<std::endl;
out[i] = gr_complex(oi, oq);
std::cout<<" out[i] "<<out[i]<<" where i= "<<i<<std::endl;
}
return noutput_items;
}
} /* namespace analog */
} /* namespace gr */
2014-04-30 10:37 GMT+02:00 Activecat <active...@gmail.com>:
> You should attached the files where you put the std::cout.
> The std::cout should be in the work() function.
>
>
> On Wed, Apr 30, 2014 at 11:07 AM, Sara Chérif <saracheri...@gmail.com>wrote:
>
>> I am testing some blocks to understand the synchronization in ofdm . I
>> edited c++ files & put std::cout for all variables in
>> frequency_modulator_fc_impl.cc and multiply_cc_impl.cc and then I rebuilt
>> using cmake../ then make then sudo make install . But when I run the
>> python file "./top_block.py" I got an empty output from vector sinks also
>> I got only the values of variables in multiply_cc_impl.cc on terminal . so
>> why the values of variables of frequency_modulator_fc_impl.cc aren't shown
>> on terminal ?!!!!!!!
>>
>> Thanks.
>>
>> Here is the python file
>>
>>
>> #!/usr/bin/env python
>> ##################################################
>> # Gnuradio Python Flow Graph
>> # Title: Top Block
>> # Generated: Wed Apr 23 05:43:13 2014
>> ##################################################
>>
>> from gnuradio import blocks
>> from gnuradio import eng_notation
>> from gnuradio import gr
>> from gnuradio.eng_option import eng_option
>> from gnuradio.filter import firdes
>> from grc_gnuradio import wxgui as grc_wxgui
>> from optparse import OptionParser
>> import wx
>> from gnuradio import digital
>> from gnuradio import analog
>>
>> class top_block(grc_wxgui.top_block_gui):
>>
>> def __init__(self):
>> grc_wxgui.top_block_gui.__init__(self, title="Top Block")
>>
>> ##################################################
>> # Variables
>> ##################################################
>> self.samp_rate = samp_rate = 32000
>> fft_len=512
>> cp_len=128
>> n_sync_words=1
>> frame_length_tag_key = "frame_length"
>>
>> ##################################################
>> # Blocks
>> ##################################################
>> self.blocks_vector_source_x_0 = blocks.vector_source_c((1, 1,
>> 1,0,0,0,1,0,1), False, 1, [])
>>
>> self.sync_detect = digital.ofdm_sync_sc_cfb(fft_len, cp_len)
>> self.delay = blocks.delay(gr.sizeof_gr_complex, fft_len+cp_len)
>> self.oscillator = analog.frequency_modulator_fc(-2.0 / fft_len)
>> self.mixer = blocks.multiply_cc()
>> self.hpd = digital.header_payload_demux(
>> n_sync_words+1, # Number of OFDM symbols before payload
>> (sync + 1 sym header)
>> fft_len, cp_len, # FFT length, guard interval
>> frame_length_tag_key, # Frame length tag key
>> "", # We're not using trigger tags
>> True # One output item is one OFDM symbol
>> (False would output complex scalars)
>> )
>>
>> self.blocks_vector_sink_x_0 = blocks.vector_sink_b(4096)
>> self.blocks_vector_sink_x_1 = blocks.vector_sink_b(4096)
>>
>> ##################################################
>> # Connections
>> ##################################################
>>
>> self.connect((self.blocks_vector_source_x_0, 0),
>> (self.sync_detect))
>> self.connect((self.blocks_vector_source_x_0, 0), self.delay,
>> (self.mixer, 0), (self.hpd, 0), (self.blocks_vector_sink_x_0, 0))
>> self.connect((self.sync_detect, 0), self.oscillator, (self.mixer,
>> 1))
>> self.connect((self.sync_detect, 1), (self.hpd,
>> 1),(self.blocks_vector_sink_x_1, 0))
>>
>> #if debug_log:
>> # self.connect((sync_detect, 0),
>> blocks.file_sink(gr.sizeof_float, 'freq-offset.dat'))
>> # self.connect((sync_detect, 1),
>> blocks.file_sink(gr.sizeof_char, 'sync-detect.dat'))
>>
>>
>> # QT sink close method reimplementation
>>
>> def get_samp_rate(self):
>> return self.samp_rate
>>
>> def set_samp_rate(self, samp_rate):
>> self.samp_rate = samp_rate
>>
>> if __name__ == '__main__':
>> import ctypes
>> import sys
>> if sys.platform.startswith('linux'):
>> try:
>> x11 = ctypes.cdll.LoadLibrary('libX11.so')
>> x11.XInitThreads()
>> except:
>> print "Warning: failed to XInitThreads()"
>> parser = OptionParser(option_class=eng_option, usage="%prog:
>> [options]")
>> (options, args) = parser.parse_args()
>> tb = top_block()
>> tb.Start(True)
>> tb.Wait()
>> print tb.blocks_vector_sink_x_0.data()
>> print tb.blocks_vector_sink_x_1.data()
>>
>> _______________________________________________
>> Discuss-gnuradio mailing list
>> Discuss-gnuradio@gnu.org
>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>
>>
>
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