[Discuss-gnuradio] Microblaze Toolchain Error

Hi, folks, I installed the pre-compiled microblaze toolchain from the directory as instructed in the 'http://gnuradio.org/trac/wiki/USRP2UserFAQ' page and installed it. For some reason, I get the following result when I execute any executable files in the bin directory. -

[Discuss-gnuradio] Deutsch/German podcast about DSP, GNU Radio, and USRP

Harald Welte was recently interviewed on Chaosradio Express (by Tim Pritlove) about DSP, GNU Radio, and the USRPs -- for two hours! The interview is in the German language. http://chaosradio.ccc.de/cre087.html The MP3 file (118MB) can be streamed or downloaded here: http://chaosradio.ccc.de

Re: [Discuss-gnuradio] No Signal from XCVR2450 using usrp2_fft.py

Thomas Graf wrote: Hi, I finally got my USRP2. It seems to work as expected when I use the RFX400. I can see Ham-Radio signals with usrp2_fft.py. Doing the same with with the XCVR2450 daughterboard doesn't work. Just a nearly flat spectrum. When I record to a file nearly every value is zero only

[Discuss-gnuradio] No Signal from XCVR2450 using usrp2_fft.py

Hi, I finally got my USRP2. It seems to work as expected when I use the RFX400. I can see Ham-Radio signals with usrp2_fft.py. Doing the same with with the XCVR2450 daughterboard doesn't work. Just a nearly flat spectrum. When I record to a file nearly every value is zero only a few are 0x38. I up

Re: [Discuss-gnuradio] a report on dqpsk modulation in gnuradio

From: Bill Stevenson <[EMAIL PROTECTED]> To: Johnathan Corgan <[EMAIL PROTECTED]> Cc: discuss-gnuradio@gnu.org Sent: Thursday, December 4, 2008 9:57:02 PM Subject: Re: [Discuss-gnuradio] a report on dqpsk modulation in gnuradio __

Re: [Discuss-gnuradio] Re: what is the rate(sampling) of the impulse response using usrp_sounder.py ?

On Sat, Dec 6, 2008 at 12:09 PM, Bruhtesfa Ebrahim <[EMAIL PROTECTED]> wrote: > but, does the USB support this much sampling rate of 32 MHZ? No. > Also on simple gnu radio user manual, about gnuradio sounder it says : > "The sounder uses a custom FPGA bitstream that is able to generate and > re

[Discuss-gnuradio] Re: what is the rate(sampling) of the impulse response using usrp_sounder.py ?

Johnathan Corgan wrote: > On Fri, 2008-12-05 at 23:42 +0100, Bruhtesfa Ebrahim wrote: > >> I am using usrp_sounder.py to see channel impulse response. I used >> just the default parameters(length=4095) using: >> >> usrp_sounder.py -t -f 2.40e9 -v >> usrp_sounder.py -t -f 2.40e9 -v -F 1st_Reco

[Discuss-gnuradio] Re: Frequency shift in the received and generated signals of the USRP

Hi again Kaleem - I apologize for never getting anything out to the list. I've been swamped with work & life. Here is the gist of how to do a static freq_xlating_fir_filter -- probably imperfect since this is from memory: Instead of: USRP.source() -> WHATEVER You do : USRP.source() -> g

Re: [Discuss-gnuradio] what is the rate(sampling) of the impulse response using usrp_sounder.py ?

On Fri, 2008-12-05 at 23:42 +0100, Bruhtesfa Ebrahim wrote: > I am using usrp_sounder.py to see channel impulse response. I used > just the default parameters(length=4095) using: > > usrp_sounder.py -t -f 2.40e9 -v > usrp_sounder.py -t -f 2.40e9 -v -F 1st_Record.dat > > 1. could someone tel

Re: [Discuss-gnuradio] Newbie question on unusually high latency when reading from msgq in oscilloscope example

On Fri, Dec 5, 2008 at 12:22 AM, Rohan Narayana Murty <[EMAIL PROTECTED]> wrote: > I am am new to the gnuradio system and I have a USRP1 board running > gnuradio-3.0.2 (I have a box that was setup with this older version). There are numerous identified bugs in this release that have been fixed al

Re: [Discuss-gnuradio] MAC physical interface GNU Radio.

On Thu, 2008-12-04 at 18:29 -0500, Radha Krishna Ganti wrote: > 1) How easy is to implement a packet based CSMA/CA on the gnu radio? > Is there any existing code that is public? You can get a basic idea on how to implement CSMA by looking at the GNU Radio example in the "digital" directory.