SWRZ074C May 2017 – May 2021 IWR1443
Number of Samples (SRCACNT) Should be >3 for Correct Operation of FFT Hardware Accelerator
IWR1443 ES1.0, IWR1443 ES2.0, and IWR1443 ES3.0
Logic which subtracts the compute engine pipelined delay from FFT counter wraps around incorrectly when the number of samples is less (specifically, when it is 3).
FFT engine should not be used with FFT counter value < 4.