Re: [Discuss-gnuradio] Opening the FPGA project

[Josh Blum]

On 08/12/2010 06:22 AM, Cheaw Wen Guey wrote:
> Hi all,
>
> As per the advice given, I have started to try change the FPGA code to
> bypass the DDC for the USRP2.
>
> I am first trying to edit using the 30day trial for ISE v12 in Windows.
>
> I have 2 questions,
>
> 1. I fail to locate the project file from the git.

The project file is generated by a tcl script

http://www.ettus.com/uhd_docs/manual/html/usrp2.html#building-firmware-and-fpga-images

On windows, you will need make (probably gnu make), and the xilinx 
xtclsh (xilinx tcl shell) in your path. I would use cygwin.

> 2. I was wondering if the AeMB processor directly feeds off the output of
> the DDC module (i_out and q_out) or it only manages the flow of data?

The microblaze manages the flow of data by acting as a packet router. In 
firmware/microblaze/lib/ see dbsm.*


-Josh