[MCU] 【匠芯创D133CBS】 RTC测试

RTC时钟测试。

一、硬件部分

CPU内部集成RTC部分，需要外接晶振，电路部分如下：

二、程序部分

rtc.c

//rtc.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <sys/time.h>
#include <rtthread.h>
#include "rtdevice.h"
#include <aic_core.h>
#include "hal_adcim.h"
#include "aic_log.h"
#include "hal_gpai.h"

#define AIC_RTC_NAME               "rtc"

time_t timestamp;

static void rtc_read_hdl(void *parmeter)
{
    while (1)
    {
        struct tm *tm_local = localtime(&timestamp); // 转换为本地时间
 
        // 打印日期和时间
        rt_kprintf("current date and time: %d-%02d-%02d %02d:%02d:%02d\n",
            tm_local->tm_year + 1900, tm_local->tm_mon + 1, tm_local->tm_mday,
            tm_local->tm_hour, tm_local->tm_min, tm_local->tm_sec);
        rt_thread_mdelay(1000);
    }
}

int  test_rtc_sample(void)
{
    rt_thread_t rtc_thread;
    rt_device_t rtc_dev = RT_NULL;
    
    rt_err_t ret;

    rtc_dev = rt_device_find(AIC_RTC_NAME);
    if(rtc_dev == RT_NULL)
    {
        rt_kprintf("Failed to open %s device\n", AIC_RTC_NAME);
        return -RT_ERROR;
    }
    ret = rt_device_control(rtc_dev, RT_DEVICE_CTRL_RTC_GET_TIME, &timestamp);
    if(ret != RT_EOK)
    {
        rt_kprintf("get time fail\n");
        return -RT_ERROR;
    }
    rtc_thread = rt_thread_create(
                                    "test_rtc",
                                    rtc_read_hdl,
                                    "rtc",
                                    2048,
                                    RT_THREAD_PRIORITY_MAX/2,
                                    25);
    if(rtc_thread != RT_NULL)
    {
        rt_thread_startup(rtc_thread); 
    }
    return RT_EOK;
}

MSH_CMD_EXPORT_ALIAS(test_rtc_sample, test_rtc_sample, rtc device sample);

三、运行结果

读取RTC日期和时间，通过串口打印输出

3.1、设置时间

执行 date 2024 09 01 22 08 00，设置目前时间

3.2、运行例程

执行例程 test_rtc_sample，串口输出读取的日期和时间