RT-Thread-命令行date设置RTC 时间RT-Thread问答社区

命令行date设置RTC 时间

发布于 2022-04-16 10:47:35 浏览：1891 订阅该版

现在这个版本的RTC时间日期设置，月份设置会大一个月。
比如我设置`date 2022 4 16 10 39 36`设置完成后读取时间日期是`2022 5 16 10 39 36`.月份大了一个月。

我对比了rtc驱动的版本。`static void date(int argc, char **argv)`这个函数有区别。
以前的版本是通过`set_time(hour, min, sec); set_date(year, month, day);`这两个函数设置的。
日期没有问题。
现在的这个版本是通过`now = mktime(&tm_new);err = set_timestamp(now);`这个两个函数设置，可能是时间戳转换为当前时间造成的月份大了一个月。

不知道有没有朋友遇到过这个问题。

```c
/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2012-01-29     aozima       first version.
 * 2012-04-12     aozima       optimization: find rtc device only first.
 * 2012-04-16     aozima       add scheduler lock for set_date and set_time.
 * 2018-02-16     armink       add auto sync time by NTP
 * 2021-05-09     Meco Man     remove NTP
 */
static void date(uint8_t argc, char **argv)
{
    if (argc == 1)
    {
        time_t now;
        /* output current time */
        now = time(RT_NULL);
        rt_kprintf("%.*s", 25, ctime(&now));
    }
    else if (argc >= 7)
    {
        /* set time and date */
        uint16_t year;
        uint8_t month, day, hour, min, sec;
        year = atoi(argv[1]);
        month = atoi(argv[2]);
        day = atoi(argv[3]);
        hour = atoi(argv[4]);
        min = atoi(argv[5]);
        sec = atoi(argv[6]);
        if (year > 2099 || year < 2000)
        {
            rt_kprintf("year is out of range [2000-2099]\n");
            return;
        }
        if (month == 0 || month > 12)
        {
            rt_kprintf("month is out of range [1-12]\n");
            return;
        }
        if (day == 0 || day > 31)
        {
            rt_kprintf("day is out of range [1-31]\n");
            return;
        }
        if (hour > 23)
        {
            rt_kprintf("hour is out of range [0-23]\n");
            return;
        }
        if (min > 59)
        {
            rt_kprintf("minute is out of range [0-59]\n");
            return;
        }
        if (sec > 59)
        {
            rt_kprintf("second is out of range [0-59]\n");
            return;
        }
        set_time(hour, min, sec);
        set_date(year, month, day);
    }
    else
    {
        rt_kprintf("please input: date [year month day hour min sec] or date\n");
        rt_kprintf("e.g: date 2018 01 01 23 59 59 or date\n");
    }
}
```

if (argc == 1)
    {
        struct timeval tv = { 0 };
        struct timezone tz = { 0 };

gettimeofday(&tv, &tz);
        now = tv.tv_sec;
        /* output current time */
        rt_kprintf("local: %.*s", 25, ctime(&now));
        rt_kprintf("stamp: %ld\n", (long)tv.tv_sec);
        rt_kprintf("tz: %c%d\n", -tz.tz_minuteswest > 0 ? '+' : '-', -tz.tz_minuteswest / 60);
    }
    else if (argc >= 7)
    {
        /* set time and date */
        struct tm tm_new = {0};
        time_t old = (time_t)0;
        rt_err_t err;

tm_new.tm_year = atoi(argv[1]) - 1900;
        tm_new.tm_mon = atoi(argv[2]);
        tm_new.tm_mday = atoi(argv[3]);
        tm_new.tm_hour = atoi(argv[4]);
        tm_new.tm_min = atoi(argv[5]);
        tm_new.tm_sec = atoi(argv[6]);
        if (tm_new.tm_year > 199 || tm_new.tm_year < 100)
        {
            rt_kprintf("year is out of range [2000-2099]\n");
            return;
        }
        if (tm_new.tm_mon == 0 || tm_new.tm_mon > 12)
        {
            rt_kprintf("month is out of range [1-12]\n");
            return;
        }
        if (tm_new.tm_mday == 0 || tm_new.tm_mday > 31)
        {
            rt_kprintf("day is out of range [1-31]\n");
            return;
        }
        if (tm_new.tm_hour > 23)
        {
            rt_kprintf("hour is out of range [0-23]\n");
            return;
        }
        if (tm_new.tm_min > 59)
        {
            rt_kprintf("minute is out of range [0-59]\n");
            return;
        }
        if (tm_new.tm_sec > 59)
        {
            rt_kprintf("second is out of range [0-59]\n");
            return;
        }
        /* save old timestamp */
        err = get_timestamp(&old);
        if (err != RT_EOK)
        {
            rt_kprintf("Get current timestamp failed. %d\n", err);
            return;
        }
        /* converts the local time into the calendar time. */
        now = mktime(&tm_new);
        err = set_timestamp(now);
        if (err != RT_EOK)
        {
            rt_kprintf("set date failed. %d\n", err);
            return;
        }
        /* get new timestamp */
        get_timestamp(&now);
        rt_kprintf("old: %.*s", 25, ctime(&old));
        rt_kprintf("now: %.*s", 25, ctime(&now));
    }
    else
    {
        rt_kprintf("please input: date [year month day hour min sec] or date\n");
        rt_kprintf("e.g: date 2018 01 01 23 59 59 or date\n");
    }
}
```