Re: [Discuss-gnuradio] Error in hier block with 4 outputs and an async message!

[Marcus Müller]

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Hi Achilleas,

you're right, grc omits one of the pad sinks; that is kind of a bug,
but I don't know if the terminology really fits; as it seems, gnuradio
does not like you to have input and output pads directly connected.

I don't know if this is only a precaution to avoid loops, or if there
are actual reasons you can't have this in a hier block.
However, can you make the error go away by inserting copy blocks where
you directly pass through?

Greetings,
Marcus

On 30.01.2014 22:17, Achilleas Anastasopoulos wrote:
> Please see attached simple hier block with 4 complex outputs and 1
> async message output.
> 
> Everything compiles but the application does not run giving python
> error:
> 
> Using Volk machine: sse4_1_64_orc Traceback (most recent call
> last): File "./test_msg.py", line 67, in <module> tb = test_msg() 
> File "./test_msg.py", line 31, in __init__ self.test_msg_hier_0 =
> test_msg_hier() File
> "/home/anastas/.grc_gnuradio/test_msg_hier.py", line 34, in
> __init__ self.connect((self, 0), (self, 0)) File 
> "/usr/local/lib64/python2.7/site-packages/gnuradio/gr/hier_block2.py",
> line 75, in connect self._connect(points[i-1], points[i]) File 
> "/usr/local/lib64/python2.7/site-packages/gnuradio/gr/hier_block2.py",
> line 81, in _connect dst_block.to_basic_block(), dst_port) File 
> "/usr/local/lib64/python2.7/site-packages/gnuradio/gr/runtime_swig.py",
>
> 
line 2848, in primitive_connect
> return _runtime_swig.hier_block2_sptr_primitive_connect(self,
> *args) ValueError: connect: src and destination blocks cannot be
> the same
> 
> 
> 
> Notice that the python file of the hier block indexes outputs as
> 0,1,2,4 instead of 0,1,2,3
> 
> ?????????
> 
> Achilleas
> 
> -----------------------
> 
> linux; GNU C++ version 4.8.2 20131017 (Red Hat 4.8.2-1);
> Boost_105300; UHD_003.005.004-143-gde4ce9ea <<< Welcome to GNU
> Radio Companion 3.7.2git-142-g66196335 >>>
> 
> 
> 
> _______________________________________________ Discuss-gnuradio
> mailing list address@hidden 
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> 
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