Re: gEDA: Xilinx unified libraries

[Andrew Bardsley <bardslea-at-NOSPAMcs_dot_man_dot_ac_dot_uk>]

On Sat, 15 Apr 2000, Stephen Williams wrote:

> 
> hamish@debian.org said:
> > Or EDIF? The Xilinx tools prefer EDIF input these days, I believe. But
> > I remember discussions about cost problems with obtaining the EDIF
> > specification.

> EDIF is interesting to me for other reasons, specifically as a way for
> open source HDLs, schematic editors and simulators to communicate, but
> that is an entirely different tack. For now, I'm happy that XNF does
> the job I need done.

The only slight wrinkle I've found is that the Xilinx front-end
`XNF2NGD' wont take XNF for Virtex devices unless you lie about
the device name.  From the manual:

``XNF primitives are not defined for the Virtex architecture,
and XNF files created for Virtex are rejected by XNF2GND.
However, if you have XNF netlists that were created for the
XC3000, XC4000E, or XC5200 architectures, you can include
these XNF netlists in a design that you target to a Virtex
device''

Odd.

- Andrew 
    _______________
___/Andrew Bardsley\____________________________________________
University of Manchester Dept. of Computer Science  AMULET Group
Research Assistant bardsleyATcs.man.ac.uk  Tel: +44 161 275 6844
Snail: Room IT302, Man. Uni., Oxford Rd, Manchester, M13 9PL, UK