audio module - zero_crossing.h

语音信号进行Fir滤波

#ifdef __ECC__
/* C Definitions */

/* Structure Definition */
struct CZero_Crossing_Detect {
    float 	Input;
    float 	Threshold;
    int		Edge;
    int 	LastState;
}; 


/* Function Prototypes */
int Zero_Crossing_Detect( struct CZero_Crossing_Detect * C );
int xZero_Crossing_Detect( struct CZero_Crossing_Detect * C, float input );
void Setup_Zero_Crossing_Detect( struct CZero_Crossing_Detect * C, float threshold, int edge );




#else 
/* Assembly Definitions */


/* Assembly Struct Offset Definitions (generated by StructCalc) */
#define CZero_Crossing_Detect_Input 0
#define CZero_Crossing_Detect_Threshold 1
#define CZero_Crossing_Detect_Edge 2
#define CZero_Crossing_Detect_LastState 3



#endif