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Altera_Forum's avatar
Altera_Forum
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13 years ago

cic filter vhdl code

hi..i am student and i am doing a project on software defined radio..it includes a cic filter.as i am new to it i am finding difficulty.pls can any one help me out with a vhdl code for cic filter as soon as possible..:(

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  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    12 years ago

    --- Quote Start ---

    hi..i am student and i am doing a project on software defined radio..it includes a cic filter.as i am new to it i am finding difficulty.pls can any one help me out with a vhdl code for cic filter as soon as possible..:(

    --- Quote End ---

    hiii i came across your post on altera forums. Did you get the code. i m also working on same project but dont have the code. please reply asap.
  • Altera_Forum's avatar
    Altera_Forum
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    12 years ago

    I have implemented a number of different CIC filters over the years. If the CIC Filter Megacore does not cover your requirements my recommendation is to implement it with Matlab/Simulink and the Altera DSP Builder.

    There are a number of parameters like input and output bit width, number of stages, decimation/interpolation rate that influence the internal bit width of each stage which makes it hard to code a generic CIC filter in plain HDL.