Re: [Discuss-gnuradio] Generating hexadecimal data and printing directly on the terminal

Hi Marcus,

Thank you for the response, the unpacked to packed did the job!

As for the second question I ask it because we're planning on running the application in a server, so we would like to be able to use already developed applications and run in the terminal something like:

$ python2.7 -u myflow.py -options | my_second_app.py | ...

This would allow us to use some already validated codes and give a more modular approach.

Regards,

Guilherme

On Wed, Aug 8, 2018 at 9:01 PM Müller, Marcus (CEL) <mueller@kit.edu> wrote:

Hi Guilherme,

1) "unpacked to packed" is probably what you want!
2) don't do that, unless you really want to "humanly read" that output.

Re 2): I just happen to explain why you shouldn't do that and how you
can circumvent the need to do that. In essence, the standard output (at
this time, at least) is not guaranteed to not be used by other blocks
and the GNU Radio scheduler itself. So, you  get into trouble if you
want to parse that.
Instead, use a file sink and a `mkfifo`-generated named pipe.

Best regards,
Marcus

On Wed, 2018-08-08 at 13:55 +0200, Guilherme Theis wrote:
> Hello,
>
> I have developed a FSK demodulator flow in GRC and I am able to
> generate a file with the received bitstream. I have used the
> Parameter block to be able to fully setup my flow while running it
> from the terminal. There are two things I seem to not be able to find
> looking up online:
>
> 1) How to convert my bits into a hexadecimal code (after my Bit
> Slicer);
> 2) Print the output in the terminal after running my "python -u
> myflow.py -options"
>
> For the first point I could develop a embedded python block, but it
> would be great to have an already validated and used block for that.
> For the second point I have no clue at all to how to implement it.
>
> Best Regards,
>
> Guilherme Theis
>
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--

Guilherme THEIS

Élève ingénieur électronicien à ENSEIRB-MATMECA/UFPR (DOUBLE - DIPLOME)
Portable : +33 07 67 05 00 13

Graduando em Engenharia Elétrica - UFPR/ENSEIRB-MATMECA

Contato: +33 07 67 05 00 13