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Altera_Forum's avatar
Altera_Forum
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13 years ago

continuous averaging using VHDL

I have a question related to VHDL programming. I want to calculate the continuous average. My example code is: process (clk, reset) begin if (reset = '1') then state<=idle; out-v...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

The filter y(n) = k * y(n-1) + x(n) approximates to average(x) / (1 - k) for 0 < k < 1.

It isn't as good as a rolling average, but is often good enough.