[Discuss-gnuradio] How to receive message from subblock using topblock?

Hi, I'm newbie with PMT and I created a block was inherited from gr::sync_block and sent out messages. Could you tell me how to receive messages from my block on topblock to process them, please? With best regards, LTP ___ Discuss-gnuradio mailing list

Re: [Discuss-gnuradio] [USRP-users] How to use RX1 channel on USRP

<http://www.ettus.com/> | USRP<http://goo.gl/Ixjhh> > > > On Thu, Nov 21, 2013 at 5:40 PM, Luong Tan Phong wrote: > >> Hi Lists, >> >> I've modified RX1 channel on USRP N2xx FPGA sources, and data rate on RX1 >> is difference with RX0 (don&#

[Discuss-gnuradio] How to use RX1 channel on USRP

Hi Lists, I've modified RX1 channel on USRP N2xx FPGA sources, and data rate on RX1 is difference with RX0 (don't change RX0 channel because RX0 channel will be use for other task). Could you tell me how to receive data from RX1, please? Any of your advice to help me would be greatly appreciated.

Re: [Discuss-gnuradio] How to use gr-audio on Windows?

LineIn port on sound card. Could you help me, please? LTP. On Mon, Aug 19, 2013 at 10:58 PM, Tom Rondeau wrote: > On Wed, Aug 14, 2013 at 8:04 PM, Luong Tan Phong > wrote: > > Sorry for my misstake. > > > > When I move my program to new PC, it can't read data fro

Re: [Discuss-gnuradio] How to use gr-audio on Windows?

Sorry for my misstake. When I move my program to new PC, it can't read data from soundcard. On Aug 15, 2013 7:01 AM, "Luong Tan Phong" wrote: > On the PC has installed gnuradio with portaudio, the 'audio_mode' has set > portaudio in gr-audio.conf file. > When

Re: [Discuss-gnuradio] How to use gr-audio on Windows?

uld you help me, please? Thanks so much. Best regards. LTP. On Aug 15, 2013 4:31 AM, "Tom Rondeau" wrote: > On Tue, Aug 13, 2013 at 4:39 AM, Luong Tan Phong > wrote: > > Hi Lists, > > > > I've install gnuradio on Windows following the link: > > >

[Discuss-gnuradio] How to use gr-audio on Windows?

Hi Lists, I've install gnuradio on Windows following the link: http://voltronics.blogspot.com/2013/01/gnu-radio-windows-build-guide.html. It's OK.After that, I've write program to read data from soundcard with gr-audio lib. It's OK (using portaudio lib). When I copy the program and all dll from g

[Discuss-gnuradio] Stream_Selector (grextras) on Windows

Hi list, I installed gnuradio (with grextras), uhd libraries on Windows from sources. My project used stream_selector (C++) class to to dynamically reconfigure the flow graph at runtime. When I call gr_top_block.stop()/ wait(), the wait() function don't return in a long time and I must to kill my

[Discuss-gnuradio] Using gr_uhd on Windows

Hi List, Happy new year for everyone. I've install gnuradio v3.6.3rc and uhd v3.5.0 on Win7 64 bit. I get error: gri_fftw: gri_fftw: gr_pagesize: no info; setting pagesize = 4096 thread[thread-per-block[0]: ]: ValueError: bad vrt header or packet fragment whenever I call gr_top_block.lock()/unlo

Re: [Discuss-gnuradio] Run gnuradio application on Windows 7 (64 bit)

Hi lists, I've installed gnuradio and uhd libraries for window (files downloaded from http://files.ettus.com/binaries). When I run my application, the console show errors: "| \Users\Receiver\AppData\Roaming\.gr_fftw_wisdom: Invalid argument" "L \Users\Receiver\AppData\Roaming\.gnuradio\prefs\gr_vm

[Discuss-gnuradio] Run gnuradio application on Windows 7 (64 bit)

Hi lists, I've installed gnuradio and uhd libraries for window (files downloaded from http://files.ettus.com/binaries). When I run my application, the console show errors: "|
\Users\Receiver\AppData\Roaming\.gr_fftw_wisdom: Invalid argument" "L
\Users\Receiver\AppData\Roaming\.gnuradio\prefs\gr_vm

[Discuss-gnuradio] How to use gr_hier_block2 with multi output

Hi Lists, I've used gr_hier_block2 class with 1 output stream and it's OK but I can't use gr_hier_block2 with 2 output streams. Could you help me, please? Thanks. Phong ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/ma

[Discuss-gnuradio] System overrun after short time

Hi Lists, I wrote a program in C + + use gnuradio library to demodulate some signals. The program works well with the low data rate signal (below 20 Ksymbols/s). With higher data rate signal: 200 Ksymbols/s, the program works well for a few minutes then the console window will appear the letters '

[Discuss-gnuradio] uhd_fft freezes after some seconds

Hi lists, I've installed the lastest GNU Radio and UHD by build-gnuradio script on Ubuntu 12.04 LTS, everything is OK. I run the uhd_fft.grc example with samplerate is 25Msps and it works well but when I change the samplerate (different with 25 Msps), it just freezes after some seconds. Could you

Re: [Discuss-gnuradio] Diffirence between receive data from USRP and sent via UDP

Hi Readers, My PC has 2 gigabit ethernet controlers. I read data from USRP2 (UHD, COMPLEX_FLOAT32, sample rate = 2.5 MHz) and sent it to another PC via UDP protocol. If I sent data to another PC directly (use IP address), in System Monitor view : Receiving = 10.0 MiB/s; Sending = 19.6 MiB/s.

[Discuss-gnuradio] Diffirence between receive data from USRP and sent via UDP

Hi Readers, My PC has 2 gigabit ethernet controlers. I read data from USRP2 (UHD, COMPLEX_FLOAT32, sample rate = 2.5 MHz) and sent it to another PC via UDP protocol. If I sent data to another PC directly (use IP address), in System Monitor view : Receiving = 10.0 MiB/s; Sending = 19.6 MiB/s. uhd