[Discuss-gnuradio] Connect two daughterboards with a coax cable.

2008-05-22 Thread David Li
Hi, I 'd like to connect two daughterboards (on two separate USRP boxes) with a coax cable. The cable will replace the two RFX2400 antenna. What kind of coax cable do I need to buy? Anyone has any experience? Thanks. David ___ Discuss-gnuradio ma

Re: [Discuss-gnuradio] Re: polymorphic type documentation (PMT)

2008-04-29 Thread David Li
block? - David On Tue, 2008-04-29 at 01:03 -0700, Eric Blossom wrote: > On Mon, Apr 28, 2008 at 10:11:47AM -0700, David Li wrote: > > > > 1. In section "Constructing / Assigning a PMT": isn't pmt_list part of > > this too? > > > > FWIW, there's no

[Discuss-gnuradio] Re: polymorphic type documentation (PMT)

2008-04-28 Thread David Li
George, Thanks for coming up with the doc so fast. This helped a lot! A few comments: 1. In section "Constructing / Assigning a PMT": isn't pmt_list part of this too? 2. In "PMT Conversion Methods": what's the difference between using a "construction method" and a "conversion method" to genera

Re: [Discuss-gnuradio] m-block timeouts, time passed

2008-04-25 Thread David Li
s. - David On Thu, 2008-04-24 at 13:30 -0400, George Nychis wrote: > > David Li wrote: > > > > Hi George, > > > > I am interested in your MAC work. Does it run in the kernel or user > > space? Does it interact with IP? > > > > Is there a br

Re: [Discuss-gnuradio] m-block timeouts, time passed, or

2008-04-23 Thread David Li
Hi George, I am interested in your MAC work. Does it run in the kernel or user space? Does it interact with IP? Is there a branch that I can download and play with it? I have two USRP 2400 boxes. Thanks. - David Li > > Eric Blossom wrote: > > What your asking

[Discuss-gnuradio] A file_sink question

2008-04-09 Thread David Li
When I tried to dump audio stream data into a file_sink, I found this was doable on a Ubuntu 7.10 with Python 2.5 but not on a FC6 with Python 2.4. I had no clues so far why this happened. Any ideas? Thanks. - David ___ Discuss-gnuradio mailing li

[Discuss-gnuradio] hier_block2 and message_source

2008-04-01 Thread David Li
Hi, I have two classes A and B both derived from hier_block2. A also contains a message_source. The intention is to connect A with B inside a top_block: class A(gr.hier_block2): def __init__(self): self._source = gr.message_source() class B(gr.hier_block2): I conne

Re: [Discuss-gnuradio] "max recursion depth exceeded" error solved and new problem playing sound

2008-03-07 Thread W. David Li
elf.run() if __name__ == '__main__': s = Server2() s.start_listen() s.run_server() On Thu, 2008-03-06 at 16:00 -0800, Johnathan Corgan wrote: > On 3/6/08, W. David Li <[EMAIL PROTECTED]> wrote: > > > I got this error when connecting

[Discuss-gnuradio] "max recursion depth exceeded" error

2008-03-06 Thread W. David Li
Hello, I got this error when connecting a file_descriptor source to an audio sink in a top_block. Any ideas what might have gone wrong? Thanks. David ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/d

[Discuss-gnuradio] kludge_copy question

2008-02-04 Thread W. David Li
Hi, I have a class that inherits from "gr.kludge_copy". For now this class does nothing but to copy the inputs to outputs: class MyClass (gr.kludge_copy): def __init__(self, size): gr.kludge_copy.__init__(size) I might not have done something correctly so when I used MyClass as on

[Discuss-gnuradio] gr.message_source question

2008-01-14 Thread W. David Li
Hi, I got a python class that contains a gr.message_source as in the following. When UDP packets came in "enqueue_pkt" was called. Packets were converted into stream and inserted into a gr.msg_queue. Now I tried to dump the stream to an audio device by connecting the message_source to an audio sin

[Discuss-gnuradio] Help: make problem with 3.1.1 on 64 bit FC6

2007-12-12 Thread W. David Li
Hello, I have a 64 bit machine with FC6. Downloaded the 3.1.1 release tar ball and unpacked it. Did ./configure and everything was fine. Under regular user name I did 'make' and kept getting errors shown below. Never had this problem with previous releases. Anyone has any idea what's wrong? -

[Discuss-gnuradio] make install

2007-10-26 Thread W. David Li
Hi , This is a problem that kind of a nuisance: every time I do make install gnuradio on this particular machine, I see many similar messages to the following: mv: cannot move `libgnuradio-core-qa.so.0.0.0' to `libgnuradio-core-qa.so.0.0.0U': Permission denied And

[Discuss-gnuradio] USRP assembly instruction

2007-09-27 Thread W. David Li
Hi All, My USRP package comes in without any assembly instructions. I didnt find any at The Ettus Research web site. Just to make sure I don't do something silly - isn't the fan suppose to be on top of the Altera Cyclone chip by glue pins? Are there any special attentions I need to pay wh

[Discuss-gnuradio] Newbie question: gnuradio configure with USRP

2007-09-26 Thread W. David Li
I have USRP board with RFX2400. The question is how GnuRadio should be configured/compiled to use USRP. Before this I configured/compiled 3.0.4 without USRP (using ./configure, make and make install). ./configure showed: The following components were skipped either because you asked not t