Hi @Thales Vignoli ,
yes, the STWIN can perform the FFT with the STM32U5 on the board, but there is no package that already performs it and do exactly what you want. Luckily there are easy to use functions that you can implement in the project code, here is an example of a function that performs the FFT based on ARM builtin functions:
int32_t Function_FFT_Run2(float32_t *data_input, uint32_t size_buffer, float32_t *fft_output, float32_t *max, uint32_t *index)
{
int32_t ret = APP_MANAGER_OK;
/* Process the data through the CFFT/CIFFT module */
arm_cfft_radix4_f32(&fft_instance, data_input);
// arm_cfft_f32(&fft_instance_new, data_input, ifftFlag, doBitReverse);
/* Process the data through the Complex Magnitude Module for calculating the magnitude at each bin */
arm_cmplx_mag_f32(data_input, fft_output, size_buffer);
fft_output[0]=0; //debug
/* Calculates maxValue and returns corresponding BIN value */
arm_max_f32(fft_output, size_buffer, max, index);
return ret;
}
Regarding the toll for viewing USB data in real time, yes, there is a software, and it is inside the package that you downloaded. there is the python installer and executables that you need if you never used python, then you can launch the program to see the USB data (the documentation is inside the package as well).
also, having access to the source code of those softwares, you can implement the FFT calculation also in python, that should be easier, if you don't have much experience with STM32 programming.
If this answers your question, please, mark this as "best answer", by clicking on the "accept as solution" to help the other users of the community.
Niccolò
