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Altera_Forum's avatar
Altera_Forum
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15 years ago

FFT megaCore usage problem

I am using FFT megaCore as the core of my digital spectrum analyzer FFT core paramters: N=64, streaming mode, 8 bit inputs and output. However, in the vector waveform file that I made the sim...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi,

I would like to ask about the reading of output

I am using Nios2 to design my c file to read the output from the fft core of my design...

I am combining the fft output 8 bit source_real, 8 bit source_imag and 6 bit source_exp into 1 22-bit signal output_int..

I am using the command IORD to read my 22-bit signal into an array in c and i declared the array as alt_32 output[64];

Now I would like to use separate the combined into its original 3 parts.. So, may I know how I can separate the combined signal back to its 3 individual signal of 8bit, 8 bit and 6bit?