rtc.c

来自「A few drivers for the Motorola C380 s ce」· C语言 代码 · 共 23 行

/*
   Neptune LTE Real-time Clock Driver (Power-up Reason Only)
   ----------------------------
   (c) motoprogger 2008
*/

#include "../libs/motolibs.h"
#include "rtc.h"

#define RTC_CONTROL_STATUS_REGISTER word_ptr(RTC_BASE+0x000)
#define RTC_TIME_REGISTER word_ptr(RTC_BASE+0x004)
#define RTC_ALARM_REGISTER word_ptr(RTC_BASE+0x008)

void rtc_set_powerup_reason(word a)
{
        word c=RTC_PCRAM[0];
        if(a!=c) RTC_PCRAM[0]=a;
}

word rtc_get_powerup_reason(void)
{
        return RTC_PCRAM[0];
}