NRF_DSP_CFFT_TWIDDLE_COEF_16_F32

const flt32_t NRF_DSP_CFFT_TWIDDLE_COEF_16_F32[32]

Initial value:

= {
    1.000000000f,  0.000000000f,  0.923879533f,  0.382683432f,  0.707106781f,  0.707106781f,
    0.382683432f,  0.923879533f,  0.000000000f,  1.000000000f,  -0.382683432f, 0.923879533f,
    -0.707106781f, 0.707106781f,  -0.923879533f, 0.382683432f,  -1.000000000f, 0.000000000f,
    -0.923879533f, -0.382683432f, -0.707106781f, -0.707106781f, -0.382683432f, -0.923879533f,
    -0.000000000f, -1.000000000f, 0.382683432f,  -0.923879533f, 0.707106781f,  -0.707106781f,
    0.923879533f,  -0.382683432f
}

Example code for Floating-point Twiddle factors Generation:

for (i = 0; i < N/; i++)
{
      NRF_DSP_CFFT_TWIDDLE_COEF[2*i]   = cos(i * 2*PI/(flt32_t)N);
      NRF_DSP_CFFT_TWIDDLE_COEF[2*i+1] = sin(i * 2*PI/(flt32_t)N);
} 

where N = 16, PI = 3.14159265358979

Cos and Sin values are in interleaved fashion