audio.h

基于tms320c6711的dspbios的源程序

/*
 *  ======== audio.h ========
 */

/* 
 *  For filtering purposes, number of samples
 *  that are copied from the end of one full
 *  buffer to the beginning of the next buffer
 *  to be filled 
 */
#include <csl_mcbsp.h>
#include <csl_edma.h>

#define HISTORY             32   
#define PRESENT             1000    /* Number of new samples put into buffer */
#define BUFSIZE             (HISTORY + PRESENT)

#define FILTERS             9
#define COEFFS              HISTORY

#define PI 3.1415927 

#define RXPINGMASK      0x0001
#define RXPONGMASK      0x0010
#define TXPINGMASK      0x0100
#define TXPONGMASK      0x1000

/* Global Variables */
extern short pingRX[BUFSIZE];
extern short pongRX[BUFSIZE];
extern short pingTX[BUFSIZE];
extern short pongTX[BUFSIZE];

extern MCBSP_Handle hMcbsp;
extern EDMA_Handle hEdmaTx;            
extern EDMA_Handle hEdmaRx;