kbd_task.h

ATMEL公司AT89C51SND1为主控制器MP3源代码

/*H**************************************************************************
* NAME:         kbd_task.h         
*----------------------------------------------------------------------------
* Copyright (c) 2003 Atmel.
*----------------------------------------------------------------------------
* RELEASE:      snd1c-refd-nf-4_0_3      
* REVISION:     1.3.2.2     
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the Keyboard task definition
*****************************************************************************/

#ifndef _KBD_TASK_H_
#define _KBD_TASK_H_

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


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

#define KBD_DEBOUNCE_TEMPO  80/SCHEDULER_TICK   /* debounce period: 80 ms */
#define KBD_DEBOUNCE_INIT   0                   /* debounce counter init */


/*----- Task states -----*/
#define KBD_IDLE        (Byte)0x00
#define KBD_DEBOUNCE    (Byte)0x01
#define KBD_DECODE      (Byte)0x02


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


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

void    kbd_task_init (void);
void    kbd_task (void);
void    kbd_set_stop (void);


#endif /* _KBD_TASK_H_ */