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Altera_Forum
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15 years ago

FFT Megacore sourceexponent

Hallo I use the the FFT-Megacore from Altera and it works fine. But i´m not shure about the output exponent. For example in my Simultion the peak in my frequency spectrum was half the magnitude i...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi,

I am a newbie to FPGA designs. I have few questions related to FFT mega core usage.

1. I am trying to implement FFT mega core with variable length at run time. I expect the data( number of samples) and number of points in FFT as an input. So with this input, FFT core needs to be dynamically configured. The size of FFT varies between (256 - 65536) points.Is this feasible?? IF yes please suggest me.

2. The input to FFT mega core is expected to be in some txt files and the data is in binary fixed point format. How do I now interface the input in files to FFT mega core?? Kindly suggest.

Regards,

Ramya