Re: [Discuss-gnuradio] How to call another blocks in custom out-of-tree module

[address@hidden]

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Martin Braun (CEL)
Sent: Tuesday, November 05, 2013 10:11 PM
To: address@hidden
Subject: Re: [Discuss-gnuradio] How to call another blocks in custom 
out-of-tree module

On Tue, Nov 05, 2013 at 12:56:24PM +0000, address@hidden wrote:
> I want to call another gnu-blocks (or another hier-block) in work function.
> (Line 14~16)
> 
> 1)     How to connect input item to another block’s input
> 
> 2)     How to connect local array to another block’s output

In GNU Radio's 'block' terminology, you will *never* call another block from 
within one block's work function. You always connect the output of one block 
the input of the next.

What exactly are you trying to do? Are you simply trying to outsource some 
signal processing code out of your block?
We do this quite a lot, but then the object we call from the work function is 
not a GNU Radio block, but rather a generic object. Of course, you can include 
any Python module or object into your own Python blocks.

Or are you trying to call another, existing GNU Radio block? In this case, you 
might want to think about splitting your block up such that you can connect 
your block and existing blocks through the regular mechanism (i.e. 
top_block.connect()).

> Please help me.
> 
> Actually I need to make my own sub block.
> 
> But I need gnuradio blocks during processing my own block.

Perhaps a hier block will solve your problem?

MB

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Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

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