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Re: [Discuss-gnuradio] USRP2 FPGA Compiling

From: SteveChrepta
Subject: Re: [Discuss-gnuradio] USRP2 FPGA Compiling
Date: Thu, 2 Sep 2010 11:59:59 -0700 (PDT)

I downloaded the ise12 branch of the fpga code.  Compiled it using the
makefile, and ISE12.2 gui tool.  Both did not work in the usrp2, giving the
same results...what a shame.

SteveChrepta wrote:
> I am preparing to make small changes to the fpga code.  First I wanted to
> compile the latest fpga code and verify its operation.  I downloaded (git)
> the latest fpga code.  I have ISE 12.2 running on a WINXP_Pro SP2 PC.  I
> modified the makefiles to work with the latest cygwin.  Actually I invoke
> "make proj" to create the ISE project, and then use the ISE tool in
> Windows to perform the compile.  I set the "Design Goal" to "Timng
> Performance" and the fpga build completes successfully with no errors and
> all timing constraints met!  I generate the programming file, u2_rev3.bin,
> and put it on the SD card.  The problem is that the LEDs on the USRP2 do
> not behave correctly.  After power-on, the F-LED lights, and that's all. 
> This says that the fpga is configured, but the follow-on all-LED blink and
> D-LED did not happen.
> The ISE 12.2 that I am using is a full version that I downloaded, and I
> have a 30-day free trial license.
> All indications of the ISE tool seem to be ok for a successful fpga build. 
> The .bin file size is the same as the original.  As I stated before, there
> were no build errors, but many Warnings, related to port size mismatch,
> registers with IOB=TRUE, that are not associated with IOBs, unused module
> inputs, RAM_D<n> inputs never assigned.  Actually, in the USRP2 schematic,
> PIN V15 is "reset_fpga" and in the u2_rev3.ucf file, PIN V15 is "PHY_CLK". 
> So there is a discrepency.  I will check the other pins.  Any help is
> appreciated. Also if anyone can email to me their successful build warning
> report(s), this can help.  I'm sorry for the long posting.  Thank you,
> Steve.

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