( ESNUG 278 Item 4 ) ----------------------------------------------- [1/28/98]
Subject: ( ESNUG 270 #9 271 #7) DesignWare Foundation Licensing Tricks
>> We have less DW Foundation licenses than DC licenses. Currently we have
>> the designers not point to any of the advanced DW architectures unless
>> their design is not meeting timing. Does anyone know of a way to only
>> check out the DW Foundation license when you want to write out the design
>> and maybe run everything else in eval mode?
>>
>> - Russ Ray
>> Mitsubishi
>
> From: [ The Man In The Iron Mask ]
>
> John, please keep me anon. To disable the DW foundation licenses use:
>
> synlib_dont_get_license = {DesignWare_Foundation}
>
> Then use:
>
> synlib_disable_limited_license = FALSE
>
> To trick Synopsys into thinking its using it in Evaluation mode. When
> you're done, at the last minute, you can switch back to non-Evaluation
> mode to then write out your working design by using:
>
> synlib_disable_limited_license = TRUE
>
> along with a get_license for DW license.
>
> - [ The Man In The Iron Mask ]
From: [ Someone Who Does DesignWare At Synopsys ]
John,
The method described to circumvent the licenses will cause your design to
use only the Standard library parts. Evaluation mode will not work if a
site has a DesignWare Foundation license whether you disable the license or
not. If you were to do a 'report_resources', you will find that standard
library architectures were used instead. The fact that evaluation mode
doesn't work when a Foundation license is available can be even better
illustrated when a design contains an instantiated Foundation part.
So, if you are currently using this method, and find that the performance
is not as good as you expect, you might want to try using the library
without disabling it as the method prescribes.
- [ Someone Who Does DesignWare At Synopsys ]
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