vs1003b.h

一个基于ATmega64、VS1003、SD卡的mp3播放程序

#ifndef VS1003B_H
#define VS1003B_H

#define DefaultVolume   0x2828
#define CLOCK_REG       0xc000          //0xc00 is fow VS1003 or higher version
//#define CLOCK_REG       0x9800        //0x9800 is for VS1011 VS1002

#define VS1003B_PORT    PORTB
#define VS1003B_DDR      DDRB
#define VS1003B_PIN      PINB

#define VS1003B_XCS     4
#define VS1003B_XRESET  5
#define VS1003B_DREQ    6
#define VS1003B_XDCS    7


#define PORT_INI()        VS1003B_DDR |= _BV(VS1003B_XCS)|_BV(VS1003B_XRESET)|_BV(VS1003B_XDCS)

#define VS1003B_XCS_H()    VS1003B_PORT |=  _BV(VS1003B_XCS)
#define VS1003B_XCS_L()    VS1003B_PORT &= ~_BV(VS1003B_XCS)

#define VS1003B_XRESET_H()    VS1003B_PORT |=  _BV(VS1003B_XRESET)
#define VS1003B_XRESET_L()    VS1003B_PORT &= ~_BV(VS1003B_XRESET)

#define VS1003B_XDCS_H()    VS1003B_PORT |=  _BV(VS1003B_XDCS)
#define VS1003B_XDCS_L()    VS1003B_PORT &= ~_BV(VS1003B_XDCS)

extern void VS1003B_SPI_Low(void);//低速spi
extern void VS1003B_SPI_High(void);//高速spi
extern unsigned char VS1003B_WriteByte(unsigned char CH);//spi写字节
extern unsigned char VS1003B_ReadByte();//spi读字节
extern void VS1003B_WriteCMD(unsigned char addr, unsigned int dat);//写寄存器
extern unsigned int VS1003B_ReadCMD(unsigned char addr);//读寄存器
extern void VS1003B_WriteDAT(unsigned char dat);//写数据，音乐数据
extern unsigned char VS1003B_Init(void);//初始化
extern void VS1003B_SoftReset();//软件复位
#endif