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Altera_Forum
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14 years ago

Dynamic addition/submission in Stratix-V DSP block

Hello all, I want to use the Stratix V DSP block to build a ALU. I need the dynamical addition/submission control like the addnsub sginal in Stratix II. According to what is described ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

I tried Quartus 10.1 and Quartus 11.1. It seems the usage of DSP block is inferred from altera_mult_add.v file (in the library directory), and you do not have much control but toconfigure the parameters through the MegaWizard. But it just cannot fully utilize the functionality of DSP block. For example, I used the accumulator mode, although there is such component in DSP block, the MegaWizard builds an accumulator with LUT fabric.

Thank you.

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Hello.

I know nothing about your question (do not use DSP blocks), but want to ask, what Quartus version do you use?

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