Digital DIY in ASIC, the cheap way

Harry Bissell harrybissell at prodigy.net
Mon Sep 25 05:31:29 CEST 2000


The FPGA is the way to go... because you can load it from eeprom and then IF
you want to change it you can any time you want. You just need to have a
hardware
archetecture with all the I/O pins you will ever need, up front. Then a PCB
layout,
(probably 4 layer will do, lotsa surface mount stuff....

And by the time you get finished you can do it all over again, because the
FPGA's you
used just went obsolete !!!

Choose ony ONE.... Beer.... or bait !!!

H^)  harry

BTW it can be very EASY to sneak things under the radar... often the
engineers are the
only ones in the corporation who actually KNOW what it is they are working
on. picture...

"<your name here>.... what's that you are working on...?"
"Its a spice simulation for a Voltage Controlled Four Pole Lo-pass Resonant
filter... I'm trying to compensate for the passband lossses as the resonance
is increased..."
"Very Good, very good.... keep up the good work !"

H^) harry

The Proteus wrote:

> Not bad - but when the company you work for DOES digital synthesis chips,
> it's kinda hard to sneak something like that in under the radar.
>
> A more feasible approach if you wanted to go the ASIC route would be to
> design it in VHDL or Verilog, and then synthesize it for an FPGA. Use the
> FPGA's in whatever you want - but if you ever get the cash to do an ASIC,
> then you go to a vendor that will take your FPGA netlist and VHDL code,
> and resynthesize it to their ASIC platform - most of these guys will do
> this if you buy a large quantity (1,000 to 10,000) with no NRE - which
> otherwise would be something along the lines of $50,000-$250,000 - too
> rich for anyone's blood. :-)
>
> My $0.02
>
> The Proteus
>
> - - - T h e  U n d e r g r o u n d  W a r e h o u s e - - -
> - - - Subversive - Tools - For - A - Chaotic - Planet - - -
> -  h t t p : / / w w w . u g w a r e h o u s e . o r g /  -
> --<T h e  P r o t e u s>-<Musician>-<Producer>-<Engineer>--
>
> On Sun, 24 Sep 2000, Magnus Danielson wrote:
>
> > Hi!
> >
> > I just wanted to contribute to the digital DIY thread... now if you
> > want to do it more ultimately you would surely want to do it in an
> > ASIC, right?
> >
> > Now, doing ASIC or even full custom chips is not something you do on
> > your average private budget, but sometimes there comes oppertunities
> > which you can't refuse... when the company you work for makes an ASIC.
> > So, then you can be smart enougth to construct things so that they
> > could be used for digital synthesis.... as a side effect ;)
> >
> > This is evil, but it can be done. Hehehehe >:)
> >
> > Now back to the regular programing...
> >
> > Cheers,
> > Magnus
> >
> >




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