XST -read_cores YES doesn't merge the NGC into the compiled

[Kelvin @ SG]

Hi, there:

Is there anyway to merge the NGC cores from 3rd party vendors into my final
NGC file?
I found -read_cores YES only read in the NGC file for analysis...

Best Regards,
Kelvin

 

[Fernando]

Is there anyway to merge the NGC cores from 3rd party vendors into my final
NGC file?
I found -read_cores YES only read in the NGC file for analysis...

I think you have to instantiate your cores as black boxes for
synthesis, and then integrate them into the design during the
translate stage

You can run PAR and use the floorplanner to capture your new (bigger)
NGC core. XAPP 422 has all the details.

That's the way I do it, but it may not be the only solution.

Fernando Ortiz

 

[Paulo Dutra]

You can merge netlists together through ngcbuild (not ngdbuild).
Ncgbuild would then merge all the netlist into a single ngc file.
This was introduced in 6.2i.

I find it kinda quirky that Ngcbuild reads in an NGC and
produces an NGC, so you'll need to be careful renaming your
output NGC so as not to clash with your input NGC.

Kelvin @ SG wrote:

Hi, there:

Is there anyway to merge the NGC cores from 3rd party vendors into my final
NGC file?
I found -read_cores YES only read in the NGC file for analysis...

Best Regards,
Kelvin

--
/ 7\'7 Paulo Dutra (paulo.dutra@xilinx.com)
\ \ ` Xilinx hotline@xilinx.com
/ / 2100 Logic Drive http://www.xilinx.com
\_\/.\ San Jose, California 95124-3450 USA

 

[Kelvin @ SG]

yeah, that was the way i did it. but i think it is a good idea to give user
the option to merge NGC files...i am glad ise-6.2 has implemented that.

Kelvin





Fernando <fortiz80@tutopia.com> wrote in message
news:2658f0d3.0404070601.30d8cb41@posting.google.com...

Is there anyway to merge the NGC cores from 3rd party vendors into my
final
NGC file?
I found -read_cores YES only read in the NGC file for analysis...

I think you have to instantiate your cores as black boxes for
synthesis, and then integrate them into the design during the
translate stage

You can run PAR and use the floorplanner to capture your new (bigger)
NGC core. XAPP 422 has all the details.

That's the way I do it, but it may not be the only solution.

Fernando Ortiz