Re: [Discuss-gnuradio] HELP with "packet header parser"

[Cinaed Simson]

On 1/5/19 2:26 PM, Alban Meffre wrote:
> ok sorry my mistake i got "packet_header_default" and
> "header_format_default" mixed up
> bob

The error message at the bottom indicates the wrong number arguments.

  digital.header_format_default('1101001110010001', 0)

Try

  digital.header_format_default('1101001110010001', 0, bps)

where bps is the number of bits per symbol for your problem.

See

   Default Header Format Obj.

in the grc.

-- Cinaed




> 
> Le sam. 5 janv. 2019 à 22:13, Alban Meffre <address@hidden
> <mailto:address@hidden>> a écrit :
> 
>     hi all
> 
>     i try to figure out how to use the "packet header parser" block
>     as a formatter i use
>     "digital.header_format_default('1101001110010001', 0)"
> 
>     when i launch i get the error
>     "
>     Traceback (most recent call last):
>       File "/Users/alban/gnuradio/top_block.py", line 146, in <module>
>         main()
>       File "/Users/alban/gnuradio/top_block.py", line 134, in main
>         tb = top_block_cls()
>       File "/Users/alban/gnuradio/top_block.py", line 71, in __init__
>         self.digital_packet_headerparser_b_0 =
>     digital.packet_headerparser_b(hdr_format_dec_0)
>       File
>     
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gnuradio/digital/digital_swig2.py",
>     line 2651, in make
>         return _digital_swig2.packet_headerparser_b_make(*args)
>     NotImplementedError: Wrong number or type of arguments for
>     overloaded function 'packet_headerparser_b_make'.
>       Possible C/C++ prototypes are:
>        
>     
> gr::digital::packet_headerparser_b::make(gr::digital::packet_header_default::sptr
>     const &)
>         gr::digital::packet_headerparser_b::make(long,std::string const &)
>     "
> 
> 
>     in the "rx_ofdm" example supplied with gnuradio, the  "packet header
>     parser" use the formatter  "header_formatter.base()"
> 
>     i do not find any documentation about the base() method
>     as you can see the doxygen is empty
>     
> https://www.gnuradio.org/doc/doxygen/classgr_1_1digital_1_1header__format__base.html#a5a7b2939707146f2b28d7e91e04103c2
> 
>     if i add ".base()" to the formatter in my top_block i get an error too
> 
>     please someone can explain me hox to use this block ?
>     thank you all
>     -- 
>     Alban MEFFRE F4GSW
> 
> 
> 
> 
> -- 
> Alban MEFFRE F4GSW
> 
> 
> 
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