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79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/******************************************************************************
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* 作者：kerwincui
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* 时间：2021-06-08
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* 邮箱：164770707@qq.com
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* 源码地址：https://gitee.com/kerwincui/wumei-smart
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* author: kerwincui
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* create: 2021-06-08
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* email：164770707@qq.com
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* source:https://github.com/kerwincui/wumei-smart
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******************************************************************************/
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#include "lwip_sntp.h"
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static const char *TAG = "sntp";
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static void obtain_time(void);
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void sntp_start(void)
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{
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time_t now;
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struct tm timeinfo;
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time(&now);
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localtime_r(&now, &timeinfo);
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ESP_LOGI(TAG, "Connecting to WiFi and getting time over NTP.");
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obtain_time();
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// 使用当前时间更新'now'变量
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time(&now);
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char strftime_buf[64];
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// 将时区设置为东部标准时间并打印本地时间
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setenv("TZ", "EST5EDT,M3.2.0/2,M11.1.0", 1);
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tzset();
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localtime_r(&now, &timeinfo);
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strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
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ESP_LOGI(TAG, "The current date/time in New York is: %s", strftime_buf);
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// 设置时区为中国标准时间
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setenv("TZ", "CST-8", 1);
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tzset();
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localtime_r(&now, &timeinfo);
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strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
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ESP_LOGI(TAG, "The current date/time in Shanghai is: %s", strftime_buf);
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}
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//时间同步通知的回调函数
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void time_sync_notification_cb(struct timeval *tv)
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{
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ESP_LOGI(TAG, "Notification of a time synchronization event");
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}
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//获取时间
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static void obtain_time(void)
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{
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ESP_LOGI(TAG, "Initializing SNTP");
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sntp_setoperatingmode(SNTP_OPMODE_POLL);
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sntp_setservername(0, "ntp1.aliyun.com");
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sntp_setservername(1, "time2.cloud.tencent.com");
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sntp_setservername(2, "ntp.ntsc.ac.cn");
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sntp_setservername(3, "pool.ntp.org");
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sntp_set_time_sync_notification_cb(time_sync_notification_cb);
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sntp_init();
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// 等待时间设定
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time_t now = 0;
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struct tm timeinfo = { 0 };
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int retry = 0;
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const int retry_count = 10;
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while (sntp_get_sync_status() == SNTP_SYNC_STATUS_RESET && ++retry < retry_count) {
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ESP_LOGI(TAG, "Waiting for system time to be set... (%d/%d)", retry, retry_count);
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vTaskDelay(2000 / portTICK_PERIOD_MS);
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}
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time(&now);
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localtime_r(&now, &timeinfo);
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}
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