Hi Team!

I have updated (mostly) the vhdl directory to build the FPGA image
from source using the Xilinx 13.1 tools.(*)  Attached is a patchfile
showing what I changed.

Can anybody tell me why Makefile.local is under revision control?
Shouldn't that be something that I own locally and modify as I see
fit?

Anyway, this patch assumes that XILINX-TOOLS is set in Makefile.local
and that it points to the local Xilinx installation.  It also assumes
that you're running something recent enough that you need to source
settings32.sh instead of settings.sh.  I don't know when Xilinx made
that change, not having been playing in the Xilinx playpen for the
last few years.  It also probably assumes a whole slew of options that
are more recent than the 8.x or 9.x revision upon which things have
been built in the past.  I got all of the default options by importing
the existing project into ISE, compiling it, and extracting the
options out of the log files.

With these changes, I can do a

$ make fpga

in either the top level or the package/vhdl directory & rebuild the
FPGA code.

(*) Why 13.1?  Because that's what I happened to download when I said
to myself, "I need to go get some Xilinx tools".  I know some folks
like to run one release behind the latest (especially for Xilinx
tools) and it doesn't appear that we're doing anything that really
needs the latest & greatest from Xilinx, but that's what I've got.

--wpd