Re: [Discuss-gnuradio] Creation of a block (PSDU 29 octets) using message passing technique

2012-09-18 Thread Josh Blum
On 09/19/2012 01:11 AM, Jose Torres Diaz wrote: > Hi, > > I'm trying to use "message passing" technique in order to create a block > that generates 29 Octets. Currently, I'm using a block that generates 29 > Octets and then use tag streaming. In the .cc file, IO signature looks like: > > gr_syn

Re: [Discuss-gnuradio] ofdm block

2012-09-18 Thread Viktor Ivan Rodriguez Abdala
Hi, I get the following output with dir(Umbrella), and I can't see anything called dftsofdm ['SwigPyIterator', 'SwigPyIterator_swigregister', 'Umbrella_bin2dec_ff_sptr', 'Umbrella_bin2dec_ff_sptr_swigregister', 'Umbrella_dec2bin_ff_sptr', 'Umbrella_dec2bin_ff_sptr_swigregister', 'Umbrella_decodco

[Discuss-gnuradio] Creation of a block (PSDU 29 octets) using message passing technique

2012-09-18 Thread Jose Torres Diaz
Hi, I'm trying to use "message passing" technique in order to create a block that generates 29 Octets. Currently, I'm using a block that generates 29 Octets and then use tag streaming. In the .cc file, IO signature looks like: gr_sync_block ("st1_pktsrc_dummy_b", gr_make_io_signature (

Re: [Discuss-gnuradio] How can I know which USRP is installed GPS?

2012-09-18 Thread Josh Blum
On 09/18/2012 07:02 PM, Alex Zhang wrote: > Hi > > My PC is connected with 2 USRPs and one of them is connected with GPS and > the other one is using the MIMO cable to share the GPS. > My question is, is it possible to use the Python code to detect which USRP > is equipped with GPS, and which is

[Discuss-gnuradio] How can I know which USRP is installed GPS?

2012-09-18 Thread Alex Zhang
Hi My PC is connected with 2 USRPs and one of them is connected with GPS and the other one is using the MIMO cable to share the GPS. My question is, is it possible to use the Python code to detect which USRP is equipped with GPS, and which is not? Thanks, -- Alex, *Dreams can come true – just b

Re: [Discuss-gnuradio] UHD replacement for write_fpga_reg

2012-09-18 Thread Colin Stagner
On 09/15/2012 01:33 AM, Josh Blum wrote: > The TX GPIO setting kicks in when packets sent into the USB. You can > override the GPIO setting though with the dboard iface (all swigged up > into python as well) > http://files.ettus.com/uhd_docs/doxygen/html/classuhd_1_1usrp_1_1dboard__iface.html My re

Re: [Discuss-gnuradio] build and install UHD+GNUradio on Ubuntu

2012-09-18 Thread Marcus D. Leech
Hello, I am really new to USRP and just starting to install the GnuRadio. From the ettus website it says the easiest way to compile UHD +GNUradio is using the build-gnuradio script. I tried running it, but the very first thing (line 46 or 47) it starts to complain is on the syntax. Here is

Re: [Discuss-gnuradio] Gnuradio Screencast for Absolute Beginners

2012-09-18 Thread sumitstop
Hi Community, Just created a new playlist on my channel. Its about random experiments with gnuradio for fun. I hope the new comers will enjoy it. Here is the link to the playlist. http://www.youtube.com/playlist?list=PLwRhd5DzzaXA-poBmKgWv1BQYJT_i6VO2 More videos are coming soon. -- View this

[Discuss-gnuradio] build and install UHD+GNUradio on Ubuntu

2012-09-18 Thread LD Zhang
Hello, I am really new to USRP and just starting to install the GnuRadio. From the ettus website it says the easiest way to compile UHD +GNUradio is using the build-gnuradio script. I tried running it, but the very first thing (line 46 or 47) it starts to complain is on the syntax. Here is an exc

Re: [Discuss-gnuradio] Weird noise using RFX2400

2012-09-18 Thread Josh Blum
On 09/18/2012 09:27 AM, You Lizhao wrote: > Hi All, > > I have used RFX2400+N210 to sample real-time OFDM signal, and found that > there are two suspicious noises, which are shown in attachment or > http://uploadpie.com/vcX3j . > > One suspicious noise appears at the start-up stage of N210, and

Re: [Discuss-gnuradio] Strange overflow problem on USRP N2XX

2012-09-18 Thread Josh Blum
On 09/18/2012 05:36 AM, Ting Wu wrote: > Hi, > > > > I made more tests, and even stranger things happened. Let me clarify this > problem all over again. > > Well, here is a description of overflow: http://files.ettus.com/uhd_docs/manual/html/general.html#overflow-underflow-notes So, its

[Discuss-gnuradio] Weird noise using RFX2400

2012-09-18 Thread You Lizhao
Hi All, I have used RFX2400+N210 to sample real-time OFDM signal, and found that there are two suspicious noises, which are shown in attachment or http://uploadpie.com/vcX3j . One suspicious noise appears at the start-up stage of N210, and the other suspicious noise appears at the end of a packet

Re: [Discuss-gnuradio] GNU Radio on OS X 10.8.1: 'make test' does fail on many tests

2012-09-18 Thread Michael Dickens
Hi Gian - You are probable encountering the PYTHON issue many of us OSX users have had as well. If you do "grep PYTHON CMakeCache.txt" in the top-level build directory, you should see included the following variables, set to something: PYTHON_EXECUTABLE:FILEPATH= PYTHON_INCLUDE_DIR:PATH= PYTHO

Re: [Discuss-gnuradio] Strange overflow problem on USRP N2XX

2012-09-18 Thread Ting Wu
Hi, I made more tests, and even stranger things happened. Let me clarify this problem all over again. I have two USRP (N210 Rev.4) (Let's say U1 and U2) with LFRX daughterboard, and two computers (Endeavo ST160E) (Let's say P1 and P2). First, U1 is connected with P1 and running test code (

[Discuss-gnuradio] GNU Radio on OS X 10.8.1: 'make test' does fail on many tests

2012-09-18 Thread Gian Luca Decurtins
Hi all I'm trying to use GNU Radio (3.6.2) on OS X 10.8.1. It does build with some warnings and 'make test' does create many errors. It seems that python crashes while performing 'make test' as I do receive Mac OS X crash reports I'm not sure if python is setup correctly as 'cmake ../' does f

[Discuss-gnuradio] Strange overflow problem on USRP N2XX

2012-09-18 Thread Ting Wu
Hi all, Now I'm using several USRP N200 and N210 to build an observation network. I have bought several new computers, which are exactly the same. When I connect a USRP N210 with one computer, it has overflow problem (occasionally print 'O'). However, when I connect the same USRP with anothe