dac_drv.h

来自「这是atmel公司的89C51SND1C的mp3源程序」· C头文件 代码 · 共 38 行

/*H**************************************************************************
* $RCSfile: dac_drv.h,v $         
*----------------------------------------------------------------------------
* Copyright (c) 2002 Atmel.
*----------------------------------------------------------------------------
* RELEASE:      $Name: DEMO_FAT_1_2_5 $      
* REVISION:     $Revision: 1.2 $     
* FILE_CVSID:   $Id: dac_drv.h,v 1.2 2002/05/24 09:51:15 njourdan Exp $       
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the audio dac driver definitions
*****************************************************************************/

#ifndef _DAC_DRV_H_
#define _DAC_DRV_H_

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

#include "..\board.h"                         /* board definition */

 
/*_____ 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 ______________________________________________*/

#define Dac_emphasis(b)       ((b == TRUE)? (DAC_DEEM = ON) : (DAC_DEEM = OFF))
#define Dac_mute()            (DAC_MUTE = ON);
#define Dac_unmute()          (DAC_MUTE = OFF);
#define Dac_overclock(b)      (DAC_CLK = b);


#endif  /* _DAC_DRV_H_ */