Re: [Discuss-gnuradio] B200/mini GPIO

2016-06-10 Thread Martin Braun
Just pass the sptr. That's safe. That's its purpose. M On 06/10/2016 04:44 AM, Santos Campos wrote: > Pretty close! I was hoping to make a kind of usrp sink to control the > board remotely. > [usrp source] -> (demodulate signal to a 0/1) -> [custom block to mux > gpio ports] > > So I'm familiar

Re: [Discuss-gnuradio] CPFSK mod/demod + strange behavior

2016-06-10 Thread Achilleas Anastasopoulos
Olivier, the link you gave us does not work. It says: " *That file isn’t here anymore * Someone might’ve deleted the file or disabled the link " Achilleas PS: I attach here a simple simulation grc file for you to "play" with. If you are not clear about it there is no point going on with more co

Re: [Discuss-gnuradio] CPFSK mod/demod + strange behavior

2016-06-10 Thread Mark Napier
Hey Olivier, I hoped you pulled that file back off quickly. By publicly posting the file and password you violated the crap out of the license agreement to RTCA and linked your name to the act. Mark *From*: Olivier Goyette *Subject*: Re: [Discuss-gnuradio] CPFSK mod/demod + strange behavio

Re: [Discuss-gnuradio] CPFSK mod/demod + strange behavior

2016-06-10 Thread Mark Napier
Hello Olivier, I'm also pretty useless on GNUradio, I'm a hardware guy. However, I did get simulations going in Matlab/Simulink for a few variations of the UAT Rx/Tx. Let me say that this is not a channel for the faint of heart. The dump978 code manages to do a Rx with marvelous simplicity. I

Re: [Discuss-gnuradio] CPFSK mod/demod + strange behavior

2016-06-10 Thread Olivier Goyette
As promised, I'm giving the documentation I talked about yesterday and hop it will clarify some of the things we discussed earlier. https://www.dropbox.com/s/1blrausidm66tg4/DO-282B%20with%20Corrigendum%201_bx87er.pdf?dl=0 the password is bx87er on page 23, you will find what the transmission sp

Re: [Discuss-gnuradio] [GSoC] gr-inspector update / ask for feedback

2016-06-10 Thread Sebastian Müller
Hi all, like every week I want to give a short update about my GSoC project. For details, check the blog post at https://grinspector.wordpress.com/2016/06/10/week-3-separation-issues/ Most of the week was used to debug the Signal Separator block, which did not pass my QA test. In consultation wit

Re: [Discuss-gnuradio] CPFSK mod/demod + strange behavior

2016-06-10 Thread Achilleas Anastasopoulos
Olivier, can you point EXACTLY at the reference (page no, etc so we don't have to search) where it requires an RRC after the CPFSK and an RRC at the input of the receiver. Achilleas On Thu, Jun 9, 2016 at 3:04 PM, Achilleas Anastasopoulos wrote: > Why are you using the RRC filters? > > I hope

Re: [Discuss-gnuradio] CPFSK mod/demod + strange behavior

2016-06-10 Thread Achilleas Anastasopoulos
Marcus, any PAM signal with symbol rate R can be transmitted using bandwidth R/2 (essentially a sinc pulse; this is the case when you put 0 as the roll-off factor of an RRC). I thought your comment was not specifically for CPFSK, but general transmission schemes thus my clarification. If it is

Re: [Discuss-gnuradio] Include own GUI in existing QT windows

2016-06-10 Thread Sebastian Müller
Hi, update on this topic: I figured out that passing the parent does not seem to be the problem. The important lines are in the tag of the XML file, which result in the python flowgraph to: > self.inspector_qtgui_sink_vf_0 = inspector.qtgui_inspector_sink_vf(4096) > self._inspector_qtgui_sink_vf

[Discuss-gnuradio] B200/mini GPIO

2016-06-10 Thread Santos Campos
Pretty close! I was hoping to make a kind of usrp sink to control the board remotely. [usrp source] -> (demodulate signal to a 0/1) -> [custom block to mux gpio ports] So I'm familiar with pass by reference for functions and how to use them after. I'm not sure what it means to PbR into a whole blo

[Discuss-gnuradio] FLL Band Edge Block

2016-06-10 Thread Wilson A N
Hi everyone, I am replicating the fll bandedge block code to my oot module. It seems that whenever I call the constructor of the control_loop I get the following error gr-wsync1/lib/freqtime_sync1_impl.cc:61:77: error: type ‘gr::blocks::control_loop’ is not a direct or virtual base of ‘gr::wsync1

Re: [Discuss-gnuradio] CPFSK mod/demod + strange behavior

2016-06-10 Thread Marcus Müller
Hi Olivier, On 10.06.2016 03:06, Olivier Goyette wrote: > Excuse me for not understanding everything, but there seem to be a > lack of comprehension coming from me. > > 1- Where is your "625 kHz" coming from ? 2x312.5kHz, your FSK deviation, and what looks like to be about your filter bandwidth! >

Re: [Discuss-gnuradio] Testing PMT blocks

2016-06-10 Thread Sebastian Müller
Hi Dave, if you need a block that just passes messages, try the Message Strobe. If this is not what you want, can you please publish your block code so we can reproduce the behaivour? From your error message, maybe you have forgotten to put the "self" parameter in the method declaration? That is a