Re: [Discuss-gnuradio] Hierarchical Blocks with GrExtras message I/O

[Roy Thompson]

That seems to work, I didn't realize that grc would allow connecting a
message port to a byte port.

Thanks for your help.

-Roy

On Wed, Nov 21, 2012 at 3:21 AM, Josh Blum <address@hidden> wrote:
>
>
> On 11/20/2012 02:13 PM, Roy Thompson wrote:
>> Thanks, I updated to pull in all of the latest changes and the pad
>> source/sink now have the wildcard option as you suggested.  So I tried
>> to create a simple hierarchical block that has one message input and
>> one message output using wildcard pads.  Everything works great with
>> generating the block in companion and importing it into another
>> flowgraph, but when I try to run it, I'm getting the error below.  Any
>> ideas?
>>
>
> I guess it needs more work. The underlying scheduler doesnt support that
> (even though grc is happy).
>
> Try the size == 1 byte solution. See:
> https://github.com/buoyboy/pre-cog/blob/master/examples/radio_hier.grc
>
> -josh
>
>> Traceback (most recent call last):
>>   File "/root/mockup_test.py", line 118, in <module>
>>     tb = mockup_test()
>>   File "/root/mockup_test.py", line 47, in __init__
>>     self.gui_wrapper_0 = gui_wrapper()
>>   File "/root/.grc_gnuradio/gui_wrapper.py", line 16, in __init__
>>     gr.io_signature(1, 1, 0*1),
>>   File 
>> "/usr/lib64/python2.6/site-packages/gnuradio/gr/gnuradio_core_runtime.py",
>> line 217, in io_signature
>>     return _gnuradio_core_runtime.io_signature(*args, **kwargs)
>> RuntimeError: gr_io_signature(3)
>>
>> Thanks,
>> Roy
>>
>> On Tue, Nov 20, 2012 at 2:00 PM, Josh Blum <address@hidden> wrote:
>>>
>>>
>>> On 11/20/2012 08:08 AM, Roy Thompson wrote:
>>>> Is it possible to create hierarchical blocks that have GrExtras
>>>> messages as the inputs or outputs?  The standard pad source and sink
>>>> blocks don't appear to provide a way to do this.
>>>
>>> Not sure if this is in a release yet, but the pad source/sink have a
>>> wildcard option for the port IO type. You can use this.
>>>
>>> -josh
>>>
>>>>
>>>> Thanks,
>>>> Roy
>>>>
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