Hardware Multipliers with Virtex II

T

Tarmo Palm

Guest
Hi,

I'am using Virtex II chips. In my design I have multiple multipliers,
for what I want use Hardware Multipliers. For Synthese use I Precision
from Mentor. To force using Hardware Multipliers I use attribute
DEDICATED_MULT = ON.

When I Synthesis only my Sub Module I get result what I want. When I
Synthesis design where my Sub module is instanced are my Hardware
Multipliers gone and replaced with logic. Can anyone comment?

Cheers,

TPalm
 

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