Re: [Discuss-gnuradio] Question about hier block

[Axel Belliard]

Hi,

Thanks for taking the time to reply. I changed my code to print the data
after the constuctor. But it is still not working. I guess, I 'm doing
something else wrong.

The changed code :
 #My top block


 from gnuradio import gr
from Trameur_stanag import Trameur
class top(gr.top_block):
 def __init__(self): gr.top_block.__init__(self)

 self.src_data =
 (1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
 ,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)


 self.in_data =   gr.vector_source_b(self.src_data) self.tramage =
 Trameur ()
 self.sink2=gr.vector_sink()

self.connect( self.in_data, self.tramage) self.connect(self.tramage,
 self.sink2)
 def print_data(self)
 print out , self.sink2.data()
 if __name__ == '__main__': try:
 tb = top()
tb.run()
tb.print_data()
except KeyboardInterrupt: pass




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Re: [Discuss-gnuradio] Question about hier block

[Eric Blossom]

On Mon, Mar 29, 2010 at 10:43:08AM +0200, Axel Belliard wrote:
 Hi,
 
 Thanks for taking the time to reply. I changed my code to print the data
 after the constuctor. But it is still not working. I guess, I 'm doing
 something else wrong.

Have you looked at any of the qa_*.py code?
That code makes extensive use of vector_source's and vector_sink's.

Eric


 The changed code :
  #My top block
 
 
  from gnuradio import gr
 from Trameur_stanag import Trameur
 class top(gr.top_block):
  def __init__(self): gr.top_block.__init__(self)
 
  self.src_data =
  (1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
  ,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
  1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)
 
 
  self.in_data =   gr.vector_source_b(self.src_data) self.tramage =
  Trameur ()
  self.sink2=gr.vector_sink()
 
 self.connect( self.in_data, self.tramage) self.connect(self.tramage,
  self.sink2)
  def print_data(self)
  print out , self.sink2.data()
  if __name__ == '__main__': try:
  tb = top()
 tb.run()
 tb.print_data()
 except KeyboardInterrupt: pass
 
 


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Re: [Discuss-gnuradio] Question about hier block

[Eric Blossom]

On Fri, Mar 26, 2010 at 05:23:34PM +0100, Axel Belliard wrote:
 Hi
 
 I'm trying to make a very simple hier block. ( see the code below). When I
 execute my top block i get no error, but the data seems to never enter the
 hier block ( the print-line prints  : ()). What am I doing wrong?

You're printing from the constructor, before the graph has been run.


 
 
 my hier block#
 from gnuradio import gr
 class Trameur(gr.hier_block2):
   def __init__(self):
   gr.hier_block2.__init__(self, Trameur,gr.io_signature(1, 1,
 gr.sizeof_char),gr.io_signature(1, 1, gr.sizeof_char))
 
 
   #input
   self.in_data = gr.vector_sink_b()
   self.connect(self ,self.in_data)
   self.src_data = self.in_data.data()
 print self.src_data
 
   ###output###
   self.out_data = gr.vector_source_b (self.src_data)
   self.connect(self.out_data , self)
 
 #My top block
 
 
 from gnuradio import gr
 from Trameur_stanag import Trameur
 class top(gr.top_block):
   def __init__(self):
   gr.top_block.__init__(self)
 
   self.src_data =
 (1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)
 
   self.in_data =   gr.vector_source_b(self.src_data)
   self.tramage = Trameur ()
   self.sink2=gr.vector_sink()
 
   self.connect( self.in_data, self.tramage)
   self.connect(self.tramage, self.sink2)
 
 if __name__ == '__main__':
   try:
   tb = top()
   tb.run()
   except KeyboardInterrupt:
   pass


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