Can i do 16 k FFT using FFT acceletor on ADSP-21469 without cor intervention ??
Thanks in advance
You are limited to 8K FFT with the hardware accelerators available in ADSP-21469.
thank u for quick response !! but in our radar application 16 K FFT is required
so i hav2 go core processing ?? If is it so how much minimum internal memory is required for that ???
Yes, you will have to use the core processing for that. The amount of space required depends on what FFT (radix2 or radix 4) FFT you are implementing. Also please refer to the following link for example codes. These give the amount of space required and the performance required for each kind of FFT.
Also I think the following post would be helpful for determining the memory usage and performance of FFTs implemented in core.
Hope these are useful.
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