Re: ALSAPulseAudio procedure

What does   aplay -l indicate? When using   hw:CARD=Generic,DEV=0 in gnuradio, try using numbers, for example,   hw:0,0 or  plughw:0,0 and see if it makes a difference. Or try switching between sampling rates of 48000 and 44100. -- CInaed On 6/29/20 3:00 PM, Barry Duggan wrote: I have

Possibility of transmitting files with packet_tx

Hi all, I'm aiming to transmit csv and jpg files with an SDR and BPSK modulation. Previously I've built a flowgraph (attached as demodulation_copy.grc) with packet encoder block which is deprecated and the flowgraph can't seem to work. I'm exploring the example flowgraph(attached as

Re: GPIO lines on RPi4

Thanks to this comment, I ended up finding a solution to call a thread running a TCP/IP server able to control the variables from the main processing flowchart, without modifying manually the generated Python for a Qt application. A screenshot, which I hope is self-explanatory, illustrating this

Re: gr-foo , gr-Bluetooth

Bluetooth is using fast frequency hopping spread spectrum where only synchronized receivers are receiving the data. There are wireshark plugins for bluetooth. And you might want to post your question on the ubertooth mailing list regarding gr-bluetooth. Some of the people there developed

Re: How to find and link OOT module with gnuradio 3.8?

I filed an issue on this over a year ago. I'm not sure if it was ever fully resolved. https://github.com/gnuradio/gnuradio/issues/2429 Ron On 6/30/20 07:00, EJ Kreinar wrote: Hi gnuradio and usrp-users, I'm trying to update rfnoc OOT modules for gnuradio 3.8 (gasp). But I'm having trouble 

Re: [USRP-users] How to find and link OOT module with gnuradio 3.8?

Hello EJ Kreinar, I just came across this situation. I was trying to create a rfnoc gain tutorial oot module using rfnomodtools. But, when I was doing cmake I got some errors with respect to find_package(ettus). I was just fiddling around with cmakefiles as I am not familiar with cmake and stuff.

How to find and link OOT module with gnuradio 3.8?

Hi gnuradio and usrp-users, I'm trying to update rfnoc OOT modules for gnuradio 3.8 (gasp). But I'm having trouble finding and linking to gr-ettus specifically, and I wonder how we're supposed to call find_package() and then link to OOT modules in general with the updated cmake workflow...

How to add Documentation description in C++ OOT module

Hello, I am making a C++ OOT module and would like to add Documentation description similar to if I were to open a Gnuradio block, I can go to the Documentation and read the description of how the block works. Thanks for any help you can provide. Regards, George

Making C++ OOT module and wish to set up a parameter with different choices!

Hello, I am making a C++ OOT module and wish to have an input parameter "frame_length" with different choices. I would like to provide short, medium and long frames with a value attached to each. Based on the OOT syntax, I can enter "frame_length" as an input argument to the model. Now, how can I

Where in OOT C++ code to write a boolean variable that is set at startup

Hello, I am writing my Gnuradio OOT in C++ and wish to add a boolean variable that at startup is set to "true". Then, in Gnuradio "work" method, this variable is tested and if true will cause an initialization method to run and initialize parameters for the signal processing. The initialization

Re: Where in OOT C++ code to write a boolean variable that is set at startup

Hi George, This kind of parameter goes in the .h file that defines the classes. in our event detection software we have a similar issue (If I understand you correctly). in our detect_impl.h namespace gr { namespace radio_astro { class detect_impl : public detect { private:

GSoC 2020: gr-dpd - New BlogPost for Week 6

Hello community!! I have updated my new blogpost for last week updates regarding the gr-dpd module on my blog

Re: Making C++ OOT module and wish to set up a parameter with different choices!

I do not claim to cover all aspect of OOT blocks but I tried to document the basics of passing parameters and public/private variables at http://jmfriedt.free.fr/gr_oscilloscope_eng.pdf Unfortunately this document only covers GNU Radio 3.7: while the French version was extended to GNU Radio

Re: Making C++ OOT module and wish to set up a parameter with different choices!

Very nice document. Thanks Glen > On Jun 30, 2020, at 1:17 PM, jean-michel.fri...@femto-st.fr wrote: > > I do not claim to cover all aspect of OOT blocks but I tried to document the > basics of > passing parameters and public/private variables at >

Re: GSoC 2020: gr-dpd - New BlogPost for Week 6

Hi Alekh - does gr-dpd play nicely with gnuradio 3.8? -- Cinaed On 6/30/20 11:17 AM, Alekh wrote: Hello community!! I have updated my new blogpost for last week

Re: How to add Documentation description in C++ OOT module

You put it in the .h file(s) in gr-foo/include/foo (where foo is the name of your OOT). Here's an example: https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/include/gnuradio/dtv/dvb_ldpc_bb.h Ron On 6/30/20 09:44, George Edwards wrote: Hello, I am making a C++ OOT module and would

Re: [USRP-users] How to find and link OOT module with gnuradio 3.8?

Ron, Yes, that looks right on target with my results... A little baffling to me though... linking against OOTs seems like a fairly standard use case but maybe it's less common than I thought. It's definitely needed for rfnoc though. Mohamed Yaaseen, The change that worked for me was to update

Re: Making C++ OOT module and wish to set up a parameter with different choices!

It's done in the .yml file in gr-foo/grc. Here's a simple example: https://github.com/gnuradio/gnuradio/blob/master/gr-analog/grc/analog_sig_source_x.block.yml#L6 And a more complex example: https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/grc/dtv_dvb_ldpc_bb.block.yml If you use a