[hpsdr] Xilinx Coregen DDS

KD5NWA kd5nwa at cox.net
Wed Jun 14 11:08:40 PDT 2006


Added detail;

  I agree with Leon that Xilinx does not allow the code to be 
translated and used on a competitors product. They are very adamant 
about that point. Xilinx generated code is only for Xilinx parts.

At 01:01 PM 6/14/2006, you wrote:
>***** High Performance Software Defined Radio Discussion List *****
>
>I don't know about Altera, but Xilinx gives you the DSP and CPU core
>generator with a one year license when you buy their $99 demo board.
>The product continues to function after a year but will not create or
>change new or existing designs. They were very clear that code
>generated with the product could be used forever and be given to
>others. It's the software that they wanted to control.
>
>At 12:04 PM 6/14/2006, Eric Blossom wrote:
> >***** High Performance Software Defined Radio Discussion List *****
> >
> >On Wed, Jun 14, 2006 at 11:56:30AM +0100, Leon Heller wrote:
> > > ***** High Performance Software Defined Radio Discussion List *****
> > >
> > > As an exercise, I tried generating the simplest possible DDS with the
> > > CoreGen - 100 MHz clock input, fixed 5 MHz single sine output, six bits.
> > > Here is the VHDL it generated:
> > >
> >
> >Hi folks,
> >
> >No offense meant to the Xilinx and/or Altera people on the list, but
> >given the goals of this group, we'd be better served by ensuring that
> >we are not using any vendor supplied code generators.
> >
> >Looking at the generated output seems like a reasonable thing to do.
> >However, actually using it seems like a step in the wrong direction.
> >
> >It wouldn't be a big deal to write some python/lisp/perl/... code that
> >given a set of parameters would generate a CORDIC based DDS, or for
> >that matter, handle the fixed output frequency in the example.  Once
> >the generator was written once, we'd have a piece of free software
> >that could be used over and over, independent of the part or tool
> >vendor chosen for a particular project.
> >
> >Eric
> >K7GNU
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>
>Cecil Bayona
>KD5NWA
>www.qrpradio.com
>
>"Windows, the most successful software virus ever" Don Seglio Batuna
>
>
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Cecil Bayona
KD5NWA
www.qrpradio.com

"Windows, the most successful software virus ever" Don Seglio Batuna 



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