我使用带有 esp-idf 的 ESP32。我需要正确的时间,因此我正在尝试与 NTP 服务器重新同步时间。我使用这个例子。[1]:https ://github.com/espressif/esp-idf/tree/master/examples/protocols/sntp
当我再次调用 gain_time() 方法时,设备正在重新启动。
我错了什么?我没有找到任何有帮助的东西。
I (2259) initialise_wifi: Setting WiFi configuration SSID OpenWrt
I (2359) syncTime: I'm runing :)
I (2369) getTimeNow: Time is not set yet. Connecting to WiFi and getting time over NTP.
I (2389) initialize_sntp: Initializing SNTP
I (2389) obtain_time: Waiting for system time to be set... (1/10)
...
I (18389) obtain_time: Waiting for system time to be set... (9/10)
-----The time is correct, but when i'm trying resync with NTP
I (20639) getTimeNow: Time is not set yet. Connecting to WiFi and getting time over NTP.
I (20639) initialize_sntp: Initializing SNTP
assertion "Operating mode must not be set while SNTP client is running" failed: file "/home/lenovov510/esp/esp-idf/components/lwip/lwip/src/apps/sntp/sntp.c", line 600, function: sntp_s
etoperatingmode
abort() was called at PC 0x400d2c6b on core 1
ELF file SHA256: 145d1f5e047670ed10c462ae090b3e64db1c5aa158a9988417a513b2ee801051
Backtrace: 0x4008623c:0x3ffc7e00 0x40086489:0x3ffc7e20 0x400d2c6b:0x3ffc7e40 0x4011e251:0x3ffc7e70 0x400d28b4:0x3ffc7e90 0x400d28c7:0x3ffc7eb0 0x400d2aff:0x3ffc7f10 0x400d2bcd:0x3ffc7fa0
0x4008b569:0x3ffc7fc0
Rebooting...
有我的方法:
This give back the timestamp.
void getDateTime(char *dateTime)
{
char *TAG = "getDateTime";
time_t now;
struct tm timeinfo;
time(&now);
localtime_r(&now, &timeinfo);
char strftime_buf[64];
setenv("TZ", "GTM-2", 1);
tzset();
localtime_r(&now, &timeinfo);
strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
sprintf(dateTime, "20%d-%d-%d+%d:%d:%d", timeinfo.tm_year - 100, timeinfo.tm_mon + 1, timeinfo.tm_mday, timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec);
}
This method trying to update time.
void syncTime()
{
char *TAG = "syncTime";
obtain_time();
}
static void obtain_time(void)
{
static const char *TAG = "obtain_time";
initialize_sntp();
time_t now = 0;
struct tm timeinfo = {0};
int retry = 0;
const int retry_count = 10;
while (retry!=retry_count)// timeinfo.tm_year < (2016 - 1900) && ++retry < retry_count )
{
ESP_LOGI(TAG, "Waiting for system time to be set... (%d/%d)", retry, retry_count);
vTaskDelay(2000 / portTICK_PERIOD_MS);
time(&now);
localtime_r(&now, &timeinfo);
}
}
//----
static void initialize_sntp(void)
{
static const char *TAG = "initialize_sntp";
ESP_LOGI(TAG, "Initializing SNTP");
sntp_setoperatingmode(SNTP_OPMODE_POLL);
sntp_setservername(0, "pool.ntp.org");
sntp_init();
...
//Update the timeInSec and Datettime variable
void updateTimeVariables(void *pvParameter)
{
char *TAG = "updateTimeVariables";
while (1 == 1)
{
getDateTime(dateTime);
timeInSec = getTimeNow();
vTaskDelay(500 / portTICK_PERIOD_MS);
}
vTaskDelete(NULL);
}
//Sync NTP server.
void updateTime(void *pvParameter)
{
char *TAG = "updateTime";
while (1 == 1)
{
syncTime();
vTaskDelay(10000 / portTICK_PERIOD_MS);//1800000 / portTICK_PERIOD_MS);
}
vTaskDelete(NULL);
}
...
xTaskCreate(&updateTime, "updateTime", 4000, NULL, 6, NULL);
xTaskCreate(&updateTimeVariables, "updateTimeVariables", 4000, NULL, 0, NULL);