MM wrote:
> Hi EDK experts,
>
> I was wondering how are the TCL scripts sitting in each of the
> pcores/xxxx/data directories supposed to be used? I am trying to modify a
> core and would like to understand whether I have to run the script manually?
> I tried running xps -nw -scr xxxx.tcl, but it wouldn't do anything...
>
>
> Thanks,
> /Mikhail

You do not need to run the scripts manually, EDK runs them for you.

In the MPD file for the core you are modifying, there will be a line
like this:

OPTION xxx_PROC = name_of_routine_in_tcl_file.

xxx_PROC will be one of about six different types of routines the EDK
understands.  There is a very small amount of documentation on a few of
them in the "Platform Specification Manual" in the EDK documentation.
This is the manual that describes the MPD, etc. file formats.

You can get a lot of examples of how the tclfiles are used by looking
though the cores that come with EDK. If you grep the *.mpd files for
_PROC, you will get a list of all the cores that are using TCL files,
and you will see what different types of _PROC routines are used.  You
will also find a lot of TCL files to use as examples.

The ChipScope files are interesting to look through because they show
how to use the ELABORATE_PROC routine to use CoreGenerator to create a
core from within EDK.

You can also use the tcl files to create a core level UCF file. You use
this with the RUN_NGCBUILD option in the MPD file to cause the core to
be synthisized by itself and the constraints incorporated into its
netlist, then that netlist to be used when the chip level netlist is
created.  There are some examples of this some where in the EDK cores
if you grep for RUN_NGCBUILD in the cores that use tcl files.


Last night I was trying to figure out how to get XST to use an XCF
constraint file when I build a core on its own. I can generate the XCF
file, but I can not figure out how to tell XCF to use it. There is a
*.scr file that gets created for each core in the synthesis directory
of the project, but I can not figure out how to modify it at the right
time of the build. Has anyone else figured this out?

Regards,

John McCaskill.