aud_drv.h

单片机开发程序原码,仅供个人学习参考. 各原码详细功能见压缩包及代码注释.

/*H**************************************************************************
* NAME:         aud_drv.h         
*----------------------------------------------------------------------------
* Copyright (c) 2003 Atmel.
*----------------------------------------------------------------------------
* RELEASE:      snd1c-refd-nf-4_0_3      
* REVISION:     1.3     
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the audio driver definitions
*****************************************************************************/

#ifndef _AUD_DRV_H_
#define _AUD_DRV_H_

/*_____ I N C L U D E S ____________________________________________________*/

 
/*_____ M A C R O S ________________________________________________________*/


/*_____ D E F I N I T I O N ________________________________________________*/


/*_____ D E C L A R A T I O N ______________________________________________*/

void    aud_set_prio (Byte);
void    aud_stop (void);
void    aud_emph (Byte);

#define Aud_enable()          (AUDCON1 |= MSK_AUDEN)
#define Aud_disable()         (AUDCON1 &= ~MSK_AUDEN)
#define Aud_enable_int()      (EAUD = 1)
#define Aud_disable_int()     (EAUD = 0)
#define Aud_set_data_16()     (AUDCON0 &= ~MSK_DSIZ)
#define Aud_set_data_32()     (AUDCON0 |= MSK_DSIZ)
#define Aud_set_i2s_16()      (AUDCON0 = 0x10)
#define Aud_set_i2s_32()      (AUDCON0 = 0x12)
#define Aud_set_pcm_16(n)     (AUDCON0 = (0x104-(n<<3)))
#define Aud_set_pcm_32(n)     (AUDCON0 = (0x106-(n<<3)))
#define Aud_set_song()        (AUDCON1 = (MSK_MSREQ | MSK_MUDRN))
#define Aud_set_voice(n)      (AUDCON1 = (MSK_MUDRN | MSK_SRC | n))
#define Aud_set_oversamp(o)   (AUDCON0 &= ~MSK_HLR);  (AUDCON0 |= o)

#define Aud_song_pause()      (AUDCON1 &= ~MSK_DRQEN)
#define Aud_song_play()       (AUDCON1 |= MSK_DRQEN)

#define Aud_voice_pause()     (EAUD = 0)
#define Aud_voice_play()      (EAUD = 1)
#define Aud_set_clock(c)      (AUDCLK = c)


#endif  /* _AUD_DRV_H_ */