int_fft.h

基于8051F单片机,实现1024点的FFT 用C 语言实现的.效果与FPGA实现相同.

#ifndef	 __Int_FFT_h__
#define  __Int_FFT_h__

//-----------------------------------------------------------------------------
// Global Variables
//-----------------------------------------------------------------------------

// XRAM storage of FFT: requires NUM_FFT*4 Bytes after DATA_BEGIN address

//---------------------------------------------------------
int xdata Real[NUM_FFT] _at_ DATA_BEGIN;
int xdata Imag[NUM_FFT] _at_ (DATA_BEGIN + (NUM_FFT * 2));
//-------------------------------------------------------

//-----------------------------------------------------------------------------
// Function PROTOTYPES
//-----------------------------------------------------------------------------
void WindowCalc(int Win_Array[], unsigned char SE_data);
void Int_FFT(int ReArray[], int ImArray[]);
void Bit_Reverse(int BR_Array[]);

#endif