cfft_t.c

两个DSP54和55程序源码。用于音频处理

//*****************************************************************************
//  Filename:	 cfft_t.c
//  Version:	 0.01
//  Description: test for cfft routine
//-----------------------------------------------------------------------------
//  Revision History:	 
//    0.01, R. Piedra, 06/15/98, - Original release
//*****************************************************************************

#include <math.h>
#include <tms320.h>
#include <dsplib.h>
	
#include "test.h"

short i;
short eflagf= PASS;
short eflagi= PASS;

short scale = 1;
short noscale = 0;

short x1[2*NX];

main()
{
	for (i=0; i<2*NX; i++)
	{
//		x[i] = 32767;
		x1[i] = x[i];
	}

	// compute
	cbrev(x,x,NX);
	cfft(x,NX,scale);
	// test fft
	eflagf  = test(x, rtest, NX, MAXERROR);	// for r

	for (i=0; i<2*NX; i++)
	{
//		x[i] = x[i]>>3;
	}

	cbrev(x,x,NX);
	cifft(x,NX,noscale);
	// test ifft
	eflagi  = test(x, x1, NX, MAXERROR);	// for r


	return;
}