[Discuss-gnuradio] tx path segfaults on ucla zigbee_phy

2011-06-06 Thread Marius
Hi! I checked out various branches on the UCLA Zigbee stack, that is on cgran: https://www.cgran.org/wiki/UCLAZigBee Actually I have some success using it as a sniffer with a USRP1. But using this implementation with TX path has issues. I'm running into segfaults on all branches. Is there a newe

Re: [Discuss-gnuradio] Tx path diagram

2009-01-22 Thread Ronaldo Nunez
Thank you for all Eric. At now I'm editing the diagram (there are some block which names are in Portuguese). I understood all when I connected the usrp(basicTX) to the spectrum analyzer(SA). I verified that when I sweep the frequency (f_LO on diagram), with f_signal(baseband)=0 Hz, I saw on SA 4 t

Re: [Discuss-gnuradio] Tx path diagram

2009-01-21 Thread Eric Blossom
On Mon, Jan 19, 2009 at 09:02:18AM -0200, Ronaldo Nunez wrote: > Hello GnuRadio community, > > I made a transmission path diagram to try to understand how USRP works. > I'm not sure if it's right, if somebody can correct it, it will be great! :D > > To debug the diagram I used these parameters, b

[Discuss-gnuradio] Tx path diagram

2009-01-19 Thread Ronaldo Nunez
Hello GnuRadio community, I made a transmission path diagram to try to understand how USRP works. I'm not sure if it's right, if somebody can correct it, it will be great! :D To debug the diagram I used these parameters, but I didn't get the right output (using USRP v1 and BasicTX d'board). ## D

Re: [Discuss-gnuradio] Tx path questions

2009-01-06 Thread Eric Blossom
On Tue, Jan 06, 2009 at 10:41:22AM -0300, Ronaldo Nunez wrote: > Thank you for your answer Mr. Blossom, > So, the tx path is something like this: > > PC --> USB --> CIC(FPGA) --> AD9862 --> Daughter Board --> Antenna > > There is two frequencies involved in all transmissions: > * A signal frequen

Re: [Discuss-gnuradio] Tx path questions

2009-01-06 Thread Ronaldo Nunez
Thank you for your answer Mr. Blossom, So, the tx path is something like this: PC --> USB --> CIC(FPGA) --> AD9862 --> Daughter Board --> Antenna There is two frequencies involved in all transmissions: * A signal frequency (f_signal), generated by sig_source_c(). * A RF frequency (f_tx), set with

Re: [Discuss-gnuradio] Tx path questions

2009-01-05 Thread Eric Blossom
On Mon, Jan 05, 2009 at 09:48:47AM -0300, Ronaldo Nunez wrote: > Hello, > > I have a doubt about coarse modulation in AD9862 (tx path). > I saw in the faq (http://gnuradio.org/trac/wiki/UsrpFAQ/ADC) "...Block B > only moves the signal +/- fs/4 or fs/8"... > OK, but when it moves fs/4 and when it

[Discuss-gnuradio] Tx path questions

2009-01-05 Thread Ronaldo Nunez
Hello, I have a doubt about coarse modulation in AD9862 (tx path). I saw in the faq (http://gnuradio.org/trac/wiki/UsrpFAQ/ADC) "...Block B only moves the signal +/- fs/4 or fs/8"... OK, but when it moves fs/4 and when it moves fs/8? Is that controllable by software? Another question: Is the DA

[Discuss-gnuradio] Tx path problems with RFX-900

2008-01-21 Thread M9607313
Hello,everyone I have two problems about USRP Tx path as below: 1.General in the TX path,transmit data repeat again and again(I use RFX-900 daughterboard),but in my reseach I need to transmit data one period ,or after break some period,continue to transmit data.How do I do it? 2.I want know Tx

Re: [Discuss-gnuradio] Tx Path

2007-04-13 Thread Brian Padalino
On 4/13/07, Anmar Abdelaziz <[EMAIL PROTECTED]> wrote: Hi, I was looking at the UsrpTxModifications page in wiki, I want to understand how the Tx goes. my question is what is the spi_bus that goes into the data block and come out of the command block, is it internal in the FPGA? Currently

[Discuss-gnuradio] Tx Path

2007-04-13 Thread Anmar Abdelaziz
Hi, I was looking at the UsrpTxModifications page in wiki, I want to understand how the Tx goes. my question is what is the spi_bus that goes into the data block and come out of the command block, is it internal in the FPGA? looking at the UsrpRfxDiagrams in the first digram I see the signal