[sdiy] FPGA digital audio

[patchell]

    Faster computers help as well.  I had one design that took 2 hours to
route.  I needed to add a little bit to it, and then it two about 8 hours to
route.  I went from an old Pentium I 90 to a Pentium III 750 (or something like
that), and the routing time went down to 5 minutes....

harry wrote:

> Hmmm... with the price of the chips I'd go with a bigger one and let
> the router do it. Like PCBs... there is no doubt that a careful hand design
> would outperform it. Computers are persistant, but not clever.
>
> Another rule is don't fill the chip. I started at 65% with the initial
> design and
> went to 70%... now that it works.
>
> H^) harry
>
> John Loffink wrote:
>
> > Oh, come on!  That's the fun part.  That's like using an 8 bit
> > microcontroller and saying not to use assembly code.
> >
> > Xilinx's tips are meant to keep them from having to support complex,
> > nonscalable designs.  Unfortunately, they can also keep you from getting
> > the most out of the FPGA.
> >
> > John Loffink
> > jloffink at austin.rr.com
> >
> > -----Original Message-----
> > From: owner-synth-diy at dropmix.xs4all.nl
> > [mailto:owner-synth-diy at dropmix.xs4all.nl] On Behalf Of patchell
> > Sent: Saturday, January 05, 2002 10:56 AM
> > To: Synth DIY List
> > Subject: Re: [sdiy] FPGA digital audio
> >
> > >
> > > Some FPGA tips from him:
> > >
> > >
> > > Don't hand route (except as a very last resort)
> >
> >     Don't hand route at all, unless you don't have a life... ;^)
> >
> > --
> >  -Jim
> > ------------------------------------------------
> > * Visit:http://www.silcom.com/~patchell/
> > *-----------------------------------------------
>
> --
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> Revolution Black Helicopters Freedom of
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--
 -Jim
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* Visit:http://www.silcom.com/~patchell/
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