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RTC 3 Click

RTC 3 Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.


Click Library

  • Author : MikroE Team
  • Date : Jan 2020.
  • Type : I2C type

Software Support

Example Description

This example demonstrates the use of RTC 3 Click board by reading and displaying the time and date values.

Example Libraries

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Rtc3

Example Key Functions

  • rtc3_cfg_setup Config Object Initialization function.
void rtc3_cfg_setup ( rtc3_cfg_t *cfg ); 
  • rtc3_init Initialization function.
err_t rtc3_init ( rtc3_t *ctx, rtc3_cfg_t *cfg );
  • rtc3_set_time Set time hours, minutes, seconds function
void rtc3_set_time ( rtc3_t *ctx );
  • rtc3_get_time Get time hours, minutes, seconds function
void rtc3_get_time ( rtc3_t *ctx );
  • rtc3_get_date Get day of the week, day, month and year function
void rtc3_get_date ( rtc3_t *ctx );

Application Init

Initializes the driver and logger and then sets the starting time and date.

void application_init ( void )
{
    log_cfg_t log_cfg;
    rtc3_cfg_t cfg;

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    //  Click initialization.
    rtc3_cfg_setup( &cfg );
    RTC3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    rtc3_init( &rtc3, &cfg );
    Delay_ms ( 100 );
    
    // Stop counting
    rtc3_set_counting( &rtc3, 0 );

    // Set Time: 23h, 59 min, 50 sec
    rtc3.time.time_hours = 23;
    rtc3.time.time_minutes = 59;
    rtc3.time.time_seconds = 50;

    rtc3_set_time( &rtc3 );

    // Set Date: 6 ( Day of the week ), 31 ( day ), 12 ( month ) and 2022 ( year )
    rtc3.date.day_of_the_week = 6;
    rtc3.date.date_day = 31;
    rtc3.date.date_month = 12;
    rtc3.date.date_year = 22;

    rtc3_set_date( &rtc3 );

    // Start counting
    rtc3_set_counting( &rtc3, 1 );
    Delay_ms ( 100 );
    
    log_info( &logger, " Application Task " );
}

Application Task

Reads and displays on the USB UART the current time and date values once per second.

void application_task ( void )
{
    static uint8_t time_seconds = 0xFF;

    rtc3_get_time( &rtc3 );

    rtc3_get_date( &rtc3 );

    if ( time_seconds != rtc3.time.time_seconds )
    {
        display_log_day_of_the_week ( rtc3.date.day_of_the_week );
        log_printf( &logger, " Time: %.2u:%.2u:%.2u\r\n Date: %.2u.%.2u.20%.2u.\r\n------------------\r\n", 
                    ( uint16_t ) rtc3.time.time_hours, ( uint16_t ) rtc3.time.time_minutes,
                    ( uint16_t ) rtc3.time.time_seconds, ( uint16_t ) rtc3.date.date_day, 
                    ( uint16_t ) rtc3.date.date_month, ( uint16_t ) rtc3.date.date_year );

        time_seconds = rtc3.time.time_seconds;
    }

    Delay_ms ( 200 );
}

Application Output

This Click board can be interfaced and monitored in two ways:

  • Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
  • UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.