?? fft.h
字號(hào):
/* Constant Definitions */
#define FFT_BLOCK_LENGTH 32 /* = Number of frequency points in the FFT */
#define LOG2_BLOCK_LENGTH 5 /* = Number of "Butterfly" Stages in FFT processing */
#define SAMPLING_RATE 10000 /* = Rate at which input signal was sampled */
/* SAMPLING_RATE is used to calculate the frequency*/
/* of the largest element in the FFT output vector*/
#define FFTTWIDCOEFFS_IN_PROGMEM /*<---Comment out this line of the code if twiddle factors (coefficients) */
/*reside in data memory (RAM) as opposed to Program Memory */
/*Then remove the call to "TwidFactorInit()" and add the twiddle factor*/
/*coefficient file into your Project. An example file for a 256-pt FFT*/
/*is provided in this Code example */
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