Re: [Discuss-gnuradio] Message Passing

[Sylvain Munaut]

Hi,

>> There's no msg_connect() call here -- that would be your problem.
>> M
>
>
> I build the flowgraph using GRC. How to make correction?
> The complete top_block.py is as follows.

Did you define the message port in the .grc XML file for your blocks ?

Something like :

  <sink>
    <name>portname</name>
    <type>message</type>
    <optional>1</optional>
  </sink>

Then they should show as message port in the GRC UI and you need to
connect them in the GUI.


Cheers,

   Sylvain