dac_api.h

凌阳SPCE3200 系统开发板随机自带源程序。共安排了32个子目录

// SUNPLUS  S+core IDE generated include file.
#ifndef ANISPCE3200_DAC_API_H_26500_6334__INCLUDED_
#define ANISPCE3200_DAC_API_H_26500_6334__INCLUDED_

#include ".\System\systemHeader.h"

#define FOR_DAC_DEBUG

#define DAC_PCM_BUFFER_SIZE 0x40000 // 16 bits (2 bytes) 8192x2 bytes
//#define SPU_PCM_BUFFER_SIZE 20000 // 16 bits (2 bytes) 8192x2 bytes
#define	Stereo		 0x0001

#define	Left_Only	 0x0002

#define Right_Only	 0x0004
#define MonoToStereo 0x0008

#define	 D_VolSel_0				  0									//single channel will be 1/32 of max volume
#define	 D_VolSel_1				  0x1<<6							//1/8
#define	 D_VolSel_2				  0x2<<6							//1/2
#define	 D_VolSel_3				  0x3<<6							//1


extern void DAC_FillSoftFIFO(void);
extern void DAC_Write_PCM_Data(U16 *PCMPtr,U32 PCMSizes); //PCMSizes unit: bytes
extern U32 DAC_Get_PCM_Free_Bytes(void);
extern void DAC_EnableSoftCh(unsigned int Samplerate);
extern void DAC_DisableSoftCh(void);
extern void DAC_CheckFIFOEnough(void);   

extern U16 DAC_TempPCM[DAC_PCM_BUFFER_SIZE];
extern U32 DAC_temp_rp;
extern U32 DAC_temp_wp;
extern U16 DAC_FIFOArray[4096];
extern U32 DAC_FIFO_Offset;
extern U8  DAC_FIFOCounter;
extern U8  DAC_Output_Type;
extern U8  DAC_IRQ_Flag;
#endif //ANISPCE3200_DAC_API_H_26500_6334__INCLUDED_