Dear Eric,
Thanks for the pointer. I get raw IP packets. I have written a C program to
read these packets and plot the spectrum in matlab. I wanted to use gnuradio
to do different signal processing functions. Also I plan use the OFDM module
in gnuradio. I am trying to understand the usrp_spectrum_sense.py file in
the example and see what are the functions/classes related to USRP are
used.
I will go through the pointers you have given and get back with specific
questions.
One question regarding the samples that come out of USRP. Are they baseband
I/Q samples?
Thanks,
Anand
On Fri, Jul 18, 2008 at 5:09 PM, Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Fri, Jul 18, 2008 at 04:52:13PM -0400, Anand Prabhu Subramanian wrote:
> > Hello,
> >
> > I am currently working on a custom made SDR platform and trying to use
> gnu
> > radio to program it. I understand that I need to write seperate source
> and
> > sink blocks to receive and send I/Q samples from and to the device. I was
> > wondering if anybody in the list could help me in understanding how to
> > write these block. I suspect I would need to write something similar to
> > the usrp code. Can you please let me know a starting point on how to
> write
> > these blocks? The device I am currently using interfaces with the host
> > using ethernet and sends/receives base band I/Q samples.
>
> TCP, UDP, or raw ethernet? If TCP, it ought to be very easy to talk to.
>
> > Are there documentations on interfacing gnuradio to SDR platforms other
> > than usrp. It would be very helpful if you could give some pointers.
> >
> > -Anand
>
> Anand, the USRP is one of the more flexible devices, and thus all of
> the code around it is fairly flexible and complicated by all the
> things that can be tweaked. In general, the code doesn't have to be
> that complicated.
>
> To get an idea about a couple of basic but useful sources and sinks,
> take a look at
>
> gnuradio-core/src/lib/io/gr_file_{source,sink}.{h,cc,i}
>
> Eric
>
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