int (*read_time)(struct device *, struct rtc_time *); int (*set_time)(struct device *, struct rtc_time *); int (*read_alarm)(struct device *, struct rtc_wkalrm *); int (*set_alarm)(struct device *, struct rtc_wkalrm *); int (*proc)(struct device *, struct seq_file *)...
int (*read_time)(struct device *, struct rtc_time *); int (*set_time)(struct device *, struct rtc_time *); int (*read_alarm)(struct device *, struct rtc_wkalrm *); int (*set_alarm)(struct device *, struct rtc_wkalrm *); int (*proc)(struct device *, struct seq_file *)...
套件: Iot.Device.Bindings v1.5.0 從裝置讀取時間 C# 複製 protected abstract DateTime ReadTime (); 傳回 DateTime 來自裝置的時間 適用於 產品版本 .NET IoT Libraries 1.0.0, 1.1.0, 1.2.0, 1.3.0, 1.4.0, 1.5.0, 2.0.0, 2.1.0, 2.2.0 意見反應 此頁面對您有幫助嗎? Yes No 本文...
[ 767.369519] [<c0619e4c>] (rtc_read_time+0x2c/0x40) from [<c06e3c18>] (get_current_time+0x40/0xac) [ 767.369543] [<c06e3c18>] (get_current_time+0x40/0xac) from [<c06e3ca4>] (calculate_delta_time+0x20/0x60) [ 767.369566] [<c06e3ca4>] (calculate_delta_time+0x20/0x60)...
应用程序可以通过 ioctl 函数来设置/读取时间、设置/读取闹钟的操作,那么对应的 rtc_dev_ioctl 函数就会执行,rtc_dev_ioctl 最终会通过操作 rtc_class_ops 中的 read_time、 set_time 等函数来对具体 RTC 设备的读写操作。内核中 RTC 驱动调用流程图如下示 ...
int (*read_time)(struct device *, struct rtc_time *); //读取时间 int (*set_time)(struct device *, struct rtc_time *); //设置时间 int (*read_alarm)(struct device *, struct rtc_wkalrm *); //读取闹钟 int (*set_alarm)(struct device *, struct rtc_wkalrm *); //设...
RTC(Real Time Clock),即实时时钟,类似于钟表一般,能够持续记录时间,为程序提供精确的日期和时间信息,即使在断电期间也能确保准确运行。 原理和特点 在STM32中,存在两个时钟源:高速时钟(8 MHz)和低速时钟(32.768 kHz)。高速时钟用于驱动CPU、外设和定时器等核心组件,而低速时钟则负责管理看门狗和RTC等功能。
int (*read_time)(struct device *, struct rtc_time *); //读取RTC设备的当前时间 int (*set_time)(struct device *, struct rtc_time *); //设置RTC设备的当前时间 int (*read_alarm)(struct device *, struct rtc_wkalrm *); //读取RTC设备的报警时间 ...
voidRTC_ReadTime(void){time_t time_cnt;struct tm time_date;time_cnt=RTC_GetCounter();time_date=*localtime(&time_cnt);RTC_Time[0]=time_date.tm_year+1900;RTC_Time[1]=time_date.tm_mon+1;RTC_Time[2]=time_date.tm_mday;RTC_Time[3]=time_date.tm_hour;RTC_Time[4]=time_date.tm...
* when we read it is to check the second counter, and if it * is zero, then we re-try the entire read */ if (rtc_tm->tm_sec == 0 && !have_retried) { have_retried = 1; goto retry_get_time; } pr_debug("read time %02x.%02x.%02x %02x/%02x/%02x\n", ...