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AWR1243: FFT with EVE fft applet

Part Number: AWR1243


Hi, Experts!
We are designing custom cascade radar board. And my question is about using EVE FFT Applet.
When we use horizontal FFT input data cube of dimensions 512х16х128 (samples x antennas x chirp's loops) we have got corrupted output data. We can see adequate result in case of  input dimensions are 256х16х128 or 512x8x128. We have tryed to decrease number of loops and have check dimensions 512x16x64 and 512x16x32 but the problem has kept. 
The problem is oserved in hardware EVE implementation and in FFT simulation on universal processor.

Does EVE FFT Applet have any restrictions that are not pointed in EVE applet user guide?

Thanks!