RTC alarm无法进入回调函数这是为什么

在rt studio中，开启RTC 开启alarm 使用data可以正常查看设置时间

但是alarm没有执行回调函数 ，alarm使用的示便代码

无论怎么设置闹钟，好像闹钟时间都是当前时间减8小时

msh >rt_alarm_dump
| id | YYYY-MM-DD hh:mm:ss | week | flag | en |
+----+---------------------+------+------+----+
| 0 | 2022-09-20 01:39:39 | 2 | S | 1 |
+----+---------------------+------+------+----+
好像时间设置失效了一般

void alarmInit(void)
{
rt_device_t dev = rt_device_find("rtc");
struct rt_alarm_setup setup;
struct rt_alarm * alarm = RT_NULL;
static time_t nowTTT;
struct tm p_tm;
if (alarm != RT_NULL)
{
rt_kprintf("alarm init error\n");
return;
}
nowTTT = time(NULL)+28800+5;
gmtime_r(&nowTTT,&p_tm);
rt_kprintf("ttttt%d,%d/%d/%d,%d:%d:%d\n",nowTTT,p_tm.tm_year+1900,p_tm.tm_mon+1,p_tm.tm_mday,p_tm.tm_hour,p_tm.tm_min,p_tm.tm_sec);
setup.flag = RT_ALARM_SECOND;
setup.wktime.tm_year = p_tm.tm_year;
setup.wktime.tm_mon = p_tm.tm_mon;
setup.wktime.tm_mday = p_tm.tm_mday;
setup.wktime.tm_wday = p_tm.tm_wday;
setup.wktime.tm_hour = p_tm.tm_hour;
setup.wktime.tm_min = p_tm.tm_min;
setup.wktime.tm_sec = p_tm.tm_sec;
alarm = rt_alarm_create(user_alarm_day_callback, &setup);
if(RT_NULL != alarm)
{
rt_alarm_start(alarm);
rt_kprintf("alarm start ok\n");
rt_alarm_dump();
}
else
{
rt_kprintf("alarm start error\n");
}
}