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Thread: AURIX TC397 SPU Window applying

  1. #1
    Beginner Beginner SmileOn is on a distinguished road
    Join Date
    Jul 2019

    AURIX TC397 SPU Window applying

    Hi to all!
    What mathematical operations do the SPU use when applying a window?
    I have a demo project from infineon, there I saw that the array of window coefficients is designed so that 0 corresponds to 0 and 0x7fff corresponds to 1. How is the window aply, and what should be the result?
    I expect that if the window coefficient = 0x7fff, then the value should not change, if the coefficient = 0x7fff/2 then half of the initial value will pour.
    I came across an unexpected result: the coefficient 0x7fff doubles the value, 0x7fff/2 leaves it the same.
    Perhaps some scaling is applied there, or something else?
    Explain who is in the know.
    Last edited by SmileOn; Aug 22nd, 2019 at 04:50 AM.

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