FFT and iFFT for convolution in ADAU1452

Hello Davker,

Yes, it is available in version 3.14 and newer.

Dave T

Hello Dave,

I have version 3.14.1, and I can't find it (even in help).

Advanced DSP/transform/ I can only find Hilbert.

Davker

Hello Davker,

This cell is in the block programming library. It does not run during one sample period but instead, it gets spread out over many sample periods. After all, you need a certain number of samples to perform the calculations. So on the top of the schematic window you see "Hardware Config" tab, "Schematic" tab and then the "Block Schematic" tab. Click on that tab and then the toolbox will change to the cells that are valid for block programming.

Dave T

Hello Dave,

OK, I found it.

Thank you.

How is this block used in practice? Is it possible to get frequency info from input signal and send dominate frequency over the I2S interface?

Hello Dave,

Is it possible to multiply with filter transform (to make convolution in frequency domain)?

Thank you

Hello davker,

Not yet, complex multiply is on the list of cells to develop. I am not certain when we will see it but it should be soon.

Dave T

Hello Dave,

I saw that I can read the data from the dsp.
But come I interpret them.
There is an algorithm to do it

Maurizio