Re: [partial-reconfig] Spartan-IIE Module Boundary doubt...

[Grégory Mermoud <gregory.mermoud@xxxxxxxxx>]

> 
> In the Gregory Mermoud tutorial (which by the way is fast becoming a
> standard text in the DPR world), the module boundary falls after column
> 19... (in other words, on column 20)... the slices add up to 38,
> horizontally, which is not a multiple of 4, yet the design works fine...

Wow. thank you very much for the compliments...

Well, about your concern, I don't know what the "theory" says. This is
my own experience in building a reconfigurable system. As you say, the
design works fine. Hence, the 0th column should be taken into account
so that it fits with "theory"...

It seems quite coherent since Spartan-II is based on a Virtex
architecture. Well, Spartan-II is actually a low cost and small Virtex
with some capabilities that are not enabled (such as genuine active
reconfiguration)...

> Maybe I'm missing something here... could it be that the 0th column,
> which doesn't really exist, needs to be taken into account nonetheless?
> This would add up to 40 slices, which conforms to the four slice rule...
> 
> I'll appreciate some comments on this...

I hope it helps...

-- 
Grégory Mermoud <gregory.mermoud@epfl.ch>
Master student in Computer Science
School of Computer and Communication Sciences
Swiss Federal Institute of Technology - Lausanne (EPFL)
<http://ic2.epfl.ch/~gmermoud>

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