dac_api.h

采用32位嵌入式芯片SPCE3200（凌阳）设计的开发板,具有多媒体功能。其中包含了网络、SD卡、TV、UART等是全部十个C程序。

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

#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(unsigned short *PCMPtr,unsigned int PCMSizes); //PCMSizes unit: bytes
extern unsigned int DAC_Get_PCM_Free_Bytes(void);
extern void DAC_EnableSoftCh(unsigned int Samplerate);
extern void DAC_DisableSoftCh(void);
extern void DAC_CheckFIFOEnough(void);   

extern unsigned short DAC_TempPCM[DAC_PCM_BUFFER_SIZE];
extern unsigned int DAC_temp_rp;
extern unsigned int DAC_temp_wp;
extern unsigned short DAC_FIFOArray[4096];
extern unsigned int DAC_FIFO_Offset;
extern unsigned char  DAC_FIFOCounter;
extern unsigned char  DAC_Output_Type;
extern unsigned char  DAC_IRQ_Flag;
#endif //ANISPCE3200_DAC_API_H_26500_6334__INCLUDED_