[Discuss-gnuradio] Losing samples in the flowgraph

Hi all I think my program loses samples. If I choose for the input of my flowgraph a file source with a throttle (Rate = 2 MSamples) and for the output a vector sink, I see in the output vector that samples are loss (every run differnet datas were loss). The CPU usage is only 40 Percent. If I red

[Discuss-gnuradio] BorIP server (USRP 1 network interface), ExtIO_USRP plugin for Winrad, GRC 'Any' & Fast Auto-correlation blocks

Hi folks, [Apologies if you've already read this on the USRP Users mailing list. I'm re-posting here as it has to do with GNU Radio too, esp. (3) & (4).] I would like to let you know that I've just released two pieces of software in one package that I hope s

Re: [Discuss-gnuradio] Hardware extending

On 2011.07.24 16:32, Farhad Abdolian wrote: Hi Thomas, I have ported the FPGA design into Spartan 3E and working on making a simple interface for the Spartan 3A/3E family of boards at the same time converting the code to VHDL that is easier for me to understand and handle. I will release the

Re: [Discuss-gnuradio] Losing samples in the flowgraph

On 07/24/2011 04:07 AM, Michael Höin wrote: > Hi all > > I think my program loses samples. If I choose for the input of my > flowgraph a file source with a throttle (Rate = 2 MSamples) and for the > output a vector sink, I see in the output vector that samples are loss > (every run differnet dat

Re: [Discuss-gnuradio] Losing samples in the flowgraph

On 07/24/2011 02:03 PM, Josh Blum wrote: This seems very unexpected. Can you attach a python script that demonstrates the problem? I used this command: sudo sysctl -w net.core.rmem_max=5000 Are you resizing the udp socket buffer? -josh Given that the flow-graph in question uses a file

[Discuss-gnuradio] oQPSK mod path

Hi! I'm creating a flow-graph that leverages the Wiesel 802.15.4 stack: http://wiesel.ece.utah.edu/redmine/projects/gr-ieee802-15-4/wiki. Mainly I want a complete GRC flowgraph for TX and RX on 802.15.4. The C++ is: http://wiesel.ece.utah.edu/redmine/projects/gr-ieee802-15-4/repository/revisions/

[Discuss-gnuradio] Plotting Data Received by USRP

Hey all, Using benchmark_qt_loopback2.py as a starting point, I'm receiving digital data from an external sensor using my own RF front end. The data is being received correctly, but my problem is this. I'd like to plot the received data in real-time (not the received signal) every time a correct

Re: [Discuss-gnuradio] Plotting Data Received by USRP

> to verify the payload. I've tried to use a vector_source and append the data > to it every time a correct packet is received and then attach that source to > my plot sink, but this does not work. The vector is correctly modified, but > this data is not passed to the plot. There's also the proble

Re: [Discuss-gnuradio] Plotting Data Received by USRP

That's what i'm doing now. The vector_source i'm using is correctly updating itself if I check the value, but it seems that the updated vector_source isn't being passed to the plotter_sink (when I connect the source to the plotter sink). Josh Blum-2 wrote: > > >> to verify the payload. I've t