USRP2 fpga image rebuild with ISE12.2

Hi all,

I downloaded USRP2 fpga code from
https://github.com/EttusResearch/usrp-fpga-mirror. And I rebuild the
code by using : make bin under u2_rev3 folder.
I manage to get u2_rev3.bin file.

And I downloaded firmware, “Raw Ethernet, No WBX or XCVR” from
https://code.ettus.com/redmine/ettus/projects/public/wiki/U2binaries.

I flashed them into SD card using flashtool command as advised on ettus
website. But I only see “F” led light up. What could be the problem?

PN