sinewave_c.c

用DSP产生正弦信号的程序

extern void InitC5402(void);
extern void OpenMcBSP(void);
extern void CloseMcBSP(void);
extern void WRITEAD50(void);
extern void sine_calculation(void);

#define Length 360

#include "math.h"
#include "stdio.h"

int i;
/*int	sin_x[360];*/

void main(void)
{  
	int *out = (int*)0x2b00;
	
	sine_calculation();
	
/*	InitC5402();  /* initialize C5402 DSP */
/* 	OpenMcBSP();
 	for (;;)
 	{
 		for (i=0; i<Length; i++)
  		 {
	  		*out = (int)(sin_x[i]);
	  		WRITEAD50();  /* Tone output*/
/*	  	 }
	 }    */       
	
}