Which file/files handle the signal sampling and decimation o

Hi,
For my work I need to do some time stamping on some signal samples.
For
this purpose I need to modify a little the FPGA on the USRP. I suppose
.\usrp-0.12\fpga is the right place to look at. There’s a bunch of HDL
design files in the folder, I wonder which of them have been used to
handle
the signal sampling and decimation? All I need to do is to add some
additional clock information onto the samples.
Thanks
/Lin

Hi,

in the receive path, the decimation is handled by the rx_chain.v
module.
That module also takes care of the digital down conversion to baseband
using
the CORDIC algorithm.

Oussama.

On Thu, Nov 09, 2006 at 11:20:49AM +0100, Lin Ji wrote:

Hi,
For my work I need to do some time stamping on some signal samples.
For
this purpose I need to modify a little the FPGA on the USRP. I suppose
.\usrp-0.12\fpga is the right place to look at.

Right place, wrong version.

Please take a look at the current code, either in svn or the latest
tarball. See http://gnuradio.org/trac/wiki

Eric

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