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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

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Actually I used underscore in my original code. I don't know why did I write 'out-1' here. Its 'out_1' Sorry for the confusion. Can you describe with an example how to do continuous averaging.

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running average:

input =>=>=>...32 stages

-----------------> subtract stage 32 from current input

put the subtractor at end of delay pipe to subtract last stage from current input

then take the result of subtraction into an accumulator (feedback adder with one register). truncate the accumulator sum as suitable.