28. Q31_add_offset

28.1. Function description:

This demo shows the FFT Q31 external calculation about adding the offset.

External calculation configure and enable offset arithmetic mode:

Initialize & configure the FFT.
Set the address of input data, and the value of offset, then loading and start calculation.
Waiting calculation done to compare the result with the golden data to check.

Note

Only RTL configure the FFT external calculation, the ctest is valid.

If the output result is same as the golden data, then print pass, if not print fail.

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