ds1744rtc.h

MPC826X挂接实时时钟芯片DS1744的驱动

/* ds1744Rtc.h - Dallas Semiconductor 1744 RTC Real Time Clock header */

/* Copyright 2002 Wind River Systems, Inc. */
/*
modification history
--------------------
01a,16apr02,rab  written.
*/

#ifndef __INCds1744Rtch
#define __INCds1744Rtch

#ifdef __cplusplus
extern "C" {
#endif

#ifndef _ASMLANGUAGE

/* register offsets */

#define DS1744_RTC_CENTURY      0x7ff8
#define DS1744_RTC_SEC      0x7ff9
#define DS1744_RTC_MIN      0x7ffa
#define DS1744_RTC_HOUR     0x7ffb
#define DS1744_RTC_DAY_OF_WK    0x7ffc
#define     DS1744_RTC_DAY_OF_MN    0x7ffd
#define DS1744_RTC_MONTH    0x7ffe
#define     DS1744_RTC_YEAR     0x7fff

#define DS1744_BIT_OSC      0x80
#define DS1744_BIT_RED      0x40
#define DS1744_BIT_WRT      0x80
#endif  /* _ASMLANGUAGE */


STATUS sysRtcGet ( struct tm *tm);
STATUS sysRtcSet ( struct tm *tm);
STATUS sysRtcInit ( void);
void sysRtcShutdown(void);


#ifdef __cplusplus
}
#endif

#endif /* __INCds1744Rtch */