gEDA-dev: verilog-AMS

[John Doty]

On May 7, 2007, at 12:49 AM, al davis wrote:

>
>> On May 5, 2007, at 6:02 AM, al davis wrote:
>>> Be careful what you ask for.  You might get it.
>>>
>>> Do you know what you are asking for?
>
> On Saturday 05 May 2007, John Doty wrote:
>> Probably not. I'm a scientist. So was Pandora. ;-)
>
>
> Verilog-AMS is happening, whether you like it or not.

What do my likes have to do with it? Let it happen.

>   The big
> fabs are investing in it, big EDA is investing in it.  The guys
> at the fabs hate supporting all those incompatible versions of
> Spice, and see Verilog-AMS as the solution.
>
> In a discussion with one of them I made a comment: "very soon
> simulators without Verilog-AMS will be unmarketable".  The
> response: "That's already true."
>
> It's true at the high end.  Only the laggards don't have it.

I'm not marketing a simulator, I'm using one. A simulator is useless  
without models.
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In Analog's design center I see:
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BSDL Files
IBIS Models
SABER Models
Simulink Models
SPICE Models

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In Maxim's design center I see:

IBIS Models
SPICE Models
BSDL Files

Where are the Verilog-AMS models? Given no models, I *cannot* switch  
from SPICE.

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> Some are using ADMS, and making inflated claims.  The best
> really do support Verilog-AMS, seriously.  The best are not
> Spice based.
>
> Opposition here, or the appearance of opposition, will not stop
> it from taking over.  It can only stop us from being there.
>

You're the developer here. It's free software. Do what you want, it  
won't hurt me. I'm just pointing out that I don't see how I can use  
your approach in a world where there seems to be inadequate support  
from the vendors of the devices to be modeled.

I remember when EDIF was supposed to solve all our EDA  
incompatibility problems. Right.

>
>
> On Saturday 05 May 2007, John Doty wrote:
>> Can you suggest a good book on Verilog-AMS?
>
> The Designer's Guide to Verilog-AMS by Ken Kundert and Olaf
> Zinke, Kluwer 1-4020-8044-1.

Thank you.

>
>
>
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John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd at noqsi.com