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Altera_Forum's avatar
Altera_Forum
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8 years ago

how to share DSP correctly ?

16bit or 8bit multiply should only use 0.5 DSP. I have try to implement two char type MAC, and the result will be store into int type. The DSP usage should be 64x16/2=1024/2=512 and in repo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

What I was trying to say was that what you want to do is likely not possible due to hardware limitations of the DSP. I modified your original example to prevent the compiler from optimizing everything out (since the kernel has no arguments) and I got a DSP usage of 1024 in the report. I am not sure how or why you got 512. Can you archive and attach the report folder with 512 DSPs?