51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/*
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* Example of using DS1307 RTC driver
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*
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* Part of esp-open-rtos
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* Copyright (C) 2016 Ruslan V. Uss <unclerus@gmail.com>
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* BSD Licensed as described in the file LICENSE
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*/
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#include <esp/uart.h>
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#include <espressif/esp_common.h>
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#include <i2c/i2c.h>
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#include <ds1307/ds1307.h>
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#include <stdio.h>
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#define I2C_BUS 0
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#define SCL_PIN 5
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#define SDA_PIN 4
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void user_init(void)
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{
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uart_set_baud(0, 115200);
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printf("SDK version:%s\n", sdk_system_get_sdk_version());
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i2c_init(I2C_BUS, SCL_PIN, SDA_PIN, I2C_FREQ_400K);
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i2c_dev_t dev = {
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.addr = DS1307_ADDR,
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.bus = I2C_BUS,
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};
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ds1307_start(&dev, true);
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// setup datetime: 2016-10-09 13:50:10
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struct tm time = {
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.tm_year = 2016,
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.tm_mon = 9, // 0-based
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.tm_mday = 9,
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.tm_hour = 13,
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.tm_min = 50,
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.tm_sec = 10
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};
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ds1307_set_time(&dev, &time);
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while (true)
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{
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ds1307_get_time(&dev, &time);
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printf("%04d-%02d-%02d %02d:%02d:%02d\n", time.tm_year, time.tm_mon + 1,
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time.tm_mday, time.tm_hour, time.tm_min, time.tm_sec);
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for (uint32_t i = 0; i < 1000; i++)
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sdk_os_delay_us(500);
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}
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}
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