I have several questions concerning the FPGA programming of the USRP2
would appreciate if you could help me. First of all, I am using GNU
3.3.0 and Ubuntu 10.10.
One of the things I have not very clear is the role of the firmware on
aeMB. Reading the FAQ I found: “It performs configuration and status
reporting for all the FPGA peripherals, manages the control channel for
GbE transport, and handles RF daughterboard operation”. I would like to
if there is another source of information than read the code. I need to
change the FGPA code, so I suppose that I need to change the firmware
the aeMB processor too. Could you confirm me this point? In order to be
concrete, I have two different scenarios:
- One scenario consists in reprogram the FGPA with a complete new
design. This would be only to use the USRP2’s FPGA connected directly
signal generator through the LFRX and to an oscilloscope through the
It is a part of a simple DSP demo I need to perform. After that, I
program the FPGA with the original code.
- Another scenario consists in add a block (for example a filter)
the actual FPGA code using the free space it has. I read in the FAQ
around 22 of the multipliers are free and about the 60% of the logic
The configuration would be the same as above (signal generator and
Another thing I would like to check is the process to add a block to the
FPGA. These are the steps I have in mind to get the code
- Download the code using git clone git://
- Use the branch ise12 typing git checkout ise12
- Go to the u2_rev3 folder
What is the next step to create the project for Xilinx ISE? Can I just
all the source files to a new project in ISE?
I suppose that when I modify the verilog files to add my block, then I
to modify also all the makefiles and go to the top folder to run make
&& make bin. Am I right?
I read in the mailing list archive that if I am going to use the raw
ethernet code, I should use the master branch and the ISE 10.x tool
of the ise12 branch and ISE 12.x tool. Is this correct?
Seeking in the Xilinx website (
http://www.xilinx.com/ise/ossupport/index.htm ) I read that only Red Hat
SuSe have support. Have you noticed any issue related to Ubuntu? Should
change to Red Hat in order to avoid any problem?
I know that I ask for a lot of answers and I apologize but this is a new
field of study for me.
Thank you very much.