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Altera_Forum
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15 years ago

Number Scaling

Hi, What is the most efficient way to scale numbers into the range of -1, 1 in Verilog using Cyclone II? That is the fastest code with least resources? are there any free IP cores from Altera o...
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Altera_Forum
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15 years ago

for 10 bit fraction use this:

y = x * (2^11-1)/579 - 2^10

the term (2^11-1)/579 = 3.53540.....

to reduce error multiply this fraction by 2^13 => 28962

then discard 13 lsb and then subtract 1024 from result