[Libre-soc-dev] soclayout problem

Staf Verhaegen staf at fibraservi.eu
Tue Apr 27 16:00:06 BST 2021

On di, 2021-04-27 at 15:44 +0100, Luke Kenneth Casson Leighton wrote:
> On Tue, Apr 27, 2021 at 3:31 PM Staf Verhaegen <staf at fibraservi.eu>
> wrote:
> > You see that the io module is used in .subckt but has no model
> > section.
> that - no model being present - is exactly what the problem is.
> if you only have one instance (one PLL, or one spblock512w64b8w),
> thenthe model *does* get copied into the BLIF file (even when marked
> as ablackbox)
> if you have *more* than one instance of a model marked as a
> blackbox,the model does *not* get copied by yosys into the BLIF file.

Why is the model section needed ? It is not there for the standard
cells like inv_x1 etc.

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