Re: [Discuss-gnuradio] Data types

[Marcus Müller]

you go ahead and edit the .xml file in the grc/ directory: You'll find
plenty of examples in your existing GNU Radio installation.

Best regards,
Marcus
On Wed, 2017-11-01 at 20:21 -0400, Tellrell White wrote:
> No Marcus I haven't. Thanks for the response. Honestly, I didn't know
> I had to in order to configure the data type of my block. How exactly
> do I go about doing this and is there any documentation on the
> process??
> 
> Regards
> Tellrell 
> 
> On Wed, Nov 1, 2017 at 12:47 PM, Marcus Müller <address@hidden
> com> wrote:
> > Have you modified the GRC .xml file accordingly? 
> > 
> > On 01.11.2017 16:29, Tellrell White wrote:
> > >  Thanks for the response. In the code below, I'm matching the
> > > output type of the divide block which is float and also the
> > > length which I'm setting here as  for v_len. However, I'm still
> > > not seeing any change. I'm also doing this in python. Any ideas?
> > > 
> > > def __init__(self, num_values=1024, V_len=1024):
> > >         gr.basic_block.__init__(self,
> > >             name="ED_block",
> > >             in_sig=[(np.float, V_len)],
> > >             out_sig=[])
> > >         self.V_len = V_len
> > >         self.num_values = num_values
> > >         self.seen = 0   
> > > 
> > > Regards
> > > Tellrell
> > > 
> > > On Wed, Nov 1, 2017 at 3:46 AM, Andrej Rode <address@hidden>
> > > wrote:
> > > > Hir ,
> > > > 
> > > > On Tue, Oct 31, 2017 at 11:03:57PM -0400, Tellrell White wrote:
> > > > > Hello All
> > > > > I have a question concerning data types. I'm creating a sink
> > > > block in python that takes float values from a "divide" block
> > > > that has a vector length of 1024. The output port on the divide
> > > > block is red. How can set the input of my block to have a red
> > > > input port?
> > > > 
> > > > You need to match the output type of the divide block (which is
> > > > probably
> > > > float) _and_ you need to match the vector length of the divide
> > > > block.
> > > > Best done with setting a parameter `vlength` and setting this
> > > > as your
> > > > io_signature in the constructor:
> > > > `io_signature::make (1,  1, sizeof (float)*vlen)),`
> > > > 
> > > > This creates a block with a configurable vector length as
> > > > input.
> > > > 
> > > > Cheers
> > > > Andrej
> > > > --
> > > > Andrej Rode
> > > > GPG Key: 750B CBBB 4A75 811A 4D5F 03ED 5C23 7FB8 9A7D A2AA
> > > > 
> > > 
> > > 
> > > 
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> >  
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