Hi Marcus, This solved my problem, thank you! I also got another solution by using a TCP sink (server mode) and then using netcat to connect to it.
After I run my `python -u myflow.py -options` I can see my output by doing a simple `nc my_ip my_port | hexdump`. I thank you again. Best regards, Guilherme On Thu, Aug 9, 2018 at 10:37 AM Müller, Marcus (CEL) <muel...@kit.edu> wrote: > Hi Guilherme, > > as I explained in that StackOverflow post I wanted to link to and then > forgot: > > https://stackoverflow.com/questions/51743074/gnu-radio-companion-how-ca > n-i-convert-float-stream-to-be-printed-to-console/51753814#51753814 > <https://stackoverflow.com/questions/51743074/gnu-radio-companion-how-can-i-convert-float-stream-to-be-printed-to-console/51753814#51753814> > > add a file sink to your flow graph which writes to /tmp/randomname (or > anything else) > > mkfifo /tmp/randomname #generates a named pipe > python2 myflow.py & > my_second_app.py < /tmp/randomname | … > > Best regards, > Marcus > > On Wed, 2018-08-08 at 21:33 +0200, Guilherme Theis wrote: > > > > $ 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) <muel...@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 > > > > > > > > _______________________________________________ > > > > Discuss-gnuradio mailing list > > > > Discuss-gnuradio@gnu.org > > > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > -- 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
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