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Altera_Forum's avatar
Altera_Forum
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14 years ago

LPM_DIVIDE Megafunction

Hey guys, I posted something earlier here about NLMS on an FPGA. So far, I have the LMS working, but I need to perform a fixed point division to perform normalization. My question ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

You need to promote the numerator to Q8, while leaving the denominator in Q4.

Then you'll get a quotient in Q4 and remainder in Q8.

You can then convert the remainder to Q4 by rounding off the 4 LSBs.