To know if you design is loaded properly, you can use the leds to
indicate some state of your design. The led F is already connect to the
PROGRAM_DONE pin of the FPGA in the cpld. You can also modify the cpld
to turn on some light on the board.
what do you have to do in your thesis?
----- Original Message -----
From: Eduardo Lloret F.
To: Matthias W.
Sent: Monday, February 14, 2011 9:09 AM
Subject: Re: [Discuss-gnuradio] Doubt about FPGA code and firmware
If your FPGA design doesn't include a Microblaze processor to do
something useful with the firmware image, you won't need to load the
My FPGA design doesn’t include a Microblaze processor so I also think
that I don’t need it. My doubt comes from the boot sequence that I read
in the USRP2GenFAQ section:
If I don’t have a processor, the second step is not necessary but I
don’t know if the first (loading of FPGA design) is accomplished
properly. What do you think?
Will you start from a new project or just modify the old one. I try
to compile the raw ethernet version but I have many problem. Give some
news of your works plz.
I started completely from a new project but If I try to modify the old
one I will tell you my results.
if you plan to use any part of the USRP2's hardware (daughterboard,
ADC, UART, ethernet, …) and don’t want to implement all the steps
required to configure and use them properly, I would suggest to
integrate your code parallel to the vanilla system (the UHD one!), it is
far more work to get it running otherwise. The firmware does a lot of
stuff. If you don’t plan to use the hardware why not use a Spartan
evaluation kit instead, they have nicer I/O capabilities for
experimenting and testing?
I plan to use the BasicRX, BasicTX, LFTX and LFRX daughterboards just
as a simple input/output to the FPGA. Besides I need the ADC and DAC but
I thought they don’t need the processor. A lot of thanks for your
advice. When you say to integrate the code to the vanilla system, do you
mean add my verilog code to their project?
I also think it would be better to use a Spartan evaluation kit to do
this but the use of the USRP2 board is part of my thesis requirements.
Thanks you so much to all of you for your help.