96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
#include "include.h"
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void rtc_clock_init(void)
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{
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// printf("rtc_clock_init\n");
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tm_t tm;
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tm.year = 2025;
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tm.mon = 1;
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tm.day = 1;
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tm.hour = 9;
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tm.min = 0;
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tm.sec = 0;
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//tm.weekday = get_weekday(tm.year, tm.mon, tm.day);
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RTCCNT = tm_to_time(tm);
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}
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//多少秒后闹钟响
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AT(.text.rtc)
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void rtc_set_alarm_relative_time(u32 nsec)
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{
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tm_t rtc_tm;
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rtc_tm = time_to_tm(RTCCNT); //更新时间结构体
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RTCALM = tm_to_time(rtc_tm) + nsec; //设置闹钟相对于当前时间n秒后
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}
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//设置多少秒后闹钟唤醒
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AT(.text.rtc)
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void rtc_set_alarm_wakeup(u32 nsec)
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{
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uint rtccon3 = RTCCON3;
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RTCCON0 |= BIT(18);
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RTCCON0 = (RTCCON0 & ~(0X3<<8)) | (0X2<<8);
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RTCCPND = BIT(17); //clear RTC alarm pending
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RTCCON9 = BIT(0); //clear alarm pending
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rtc_set_alarm_relative_time(nsec);
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rtccon3 |= BIT(8); //RTC alarm wakeup enable
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RTCCON3 = rtccon3;
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}
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//关闭闹钟
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AT(.text.rtc)
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void rtc_alarm_disable(void)
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{
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// printf("%s\n", __func__);
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RTCCPND = BIT(17); //clear RTC alarm pending
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RTCCON9 = BIT(8); //clear alarm pending
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rtc_set_alarm_relative_time(0xffff);
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RTCCON3 &= ~BIT(8);
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}
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/*
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* 设置RTC时间
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* 输入：tm结构体指针
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*/
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void rtc_clock_set(tm_t rtc_tm)
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{
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RTCCNT = tm_to_time(rtc_tm);
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}
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/*
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* 设置RTC时间
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* 输入：timestamp格林威治时间(UTC/GMT)
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* time_zone时区(范围0~24, 表示西十二区(UTC_W12) ~ 东十二区(UTC_E12))
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*/
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void rtc_clock_timestamp_set(u32 timestamp, u8 time_zone)
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{
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int zone_offset = (time_zone - UTC_0);
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u32 day_offset = (2020 - 1970)*365 + (2020 - 1970)/4; //RTCCNT时间从2020年开始, 标准的是从1970年开始算,需计算偏移
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u32 offset = day_offset*86400;
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RTCCNT = timestamp + zone_offset*3600 - offset;
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}
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/*
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* 获取RTC时间
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* 输入: 空
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输出: rtc_tm结构体
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*/
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tm_t rtc_clock_get(void)
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{
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return time_to_tm(RTCCNT);
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}
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//休眠后后RTC校准时回调函数
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AT(.sleep_text.rtc)
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void rtc_clock_calc_notify(void)
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{
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sys_cb.rtc_cal_cnt++;
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}
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