mem_task.h

来自「ATMEL 89c51sndc mp3外接硬盘源码」· C头文件 代码 · 共 57 行

/*H**************************************************************************
* NAME:         mem_task.h
*----------------------------------------------------------------------------
* Copyright (c) 2002 Atmel.
*----------------------------------------------------------------------------
* RELEASE:      snd1c-demo-hdd-0_2_0      
* REVISION:     1.1     
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the memory task definition
*****************************************************************************/

#ifndef _MEM_TASK_H_
#define _MEM_TASK_H_

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


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

/*----- Memory status -----*/
#define MEM_BUSY            ((Byte)0)
#define MEM_READY           ((Byte)1)
#define MEM_FORMAT          ((Byte)2)


/*----- Memory delay -----*/
#define MEM_FUNCT_TIME      ((Byte)0x00)
#define MEM_WRITE_TIME      ((Byte)0xFD)    /* 2 ticks min time_out */
#define MEM_DELAY_TIME      ((Byte)0x01)    /* 1 tick min time_out */
#define MEM_TIME_OUT        ((Byte)0x00)


/*----- Task states -----*/
#define MEM_HDD_INIT        ((Byte)0)
#define MEM_HDD_IDLE        ((Byte)1)
#define MEM_HDD_ERR_FMT     ((Byte)2)
#define MEM_INIT            ((Byte)18)


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


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

void    mem_task_init (void);
void    mem_task (void);
Byte    mem_status (void);
bit     mem_check_card (void);
void    mem_card_select (bit);
void    mem_select_next (void);
bit     mem_select_format (void);


#endif  /* _MEM_TASK_H_ */