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mikroSDK Library

RTC 12 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.15

mikroSDK Library: 2.0.0.0

Category: RTC

Downloaded: 317 times

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License: MIT license  

RTC 12 Click is a compact add-on board that measures the passage of time. This board features the DS1343, a low-current SPI-configurable real-time clock (RTC) from Maxim Integrated. This timekeeping device provides an extremely low standby current permitting longer life from a backup supply source. Its clock/calendar feature provides seconds, minutes, hours, day, date, month, and year information.

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mikroSDK Library Blog


RTC 12 Click

RTC 12 Click is a compact add-on board that measures the passage of time. This board features the DS1343, a low-current SPI-configurable real-time clock (RTC) from Maxim Integrated. This timekeeping device provides an extremely low standby current permitting longer life from a backup supply source. Its clock/calendar feature provides seconds, minutes, hours, day, date, month, and year information.

rtc_12_click.png

Click Product page


Click library

  • Author : Nenad Filipovic
  • Date : May 2021.
  • Type : SPI type

Software Support

We provide a library for the Rtc12 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Rtc12 Click driver.

Standard key functions :

  • rtc12_cfg_setup Config Object Initialization function.

    void rtc12_cfg_setup ( rtc12_cfg_t *cfg );
  • rtc12_init Initialization function.

    err_t rtc12_init ( rtc12_t *ctx, rtc12_cfg_t *cfg );
  • rtc12_default_cfg Click Default Configuration function.

    err_t rtc12_default_cfg ( rtc12_t *ctx );

Example key functions :

  • rtc12_set_time RTC 12 set time function.

    err_t rtc12_set_time ( rtc12_t *ctx, rtc12_time_t rtc_time );
  • rtc12_get_time RTC 12 get time function.

    err_t rtc12_get_time ( rtc12_t *ctx, rtc12_time_t *rtc_time );
  • rtc12_get_date RTC 12 get date function.

    err_t rtc12_get_date ( rtc12_t *ctx, rtc12_date_t *rtc_date );

Example Description

This is an example that demonstrates the use of the RTC 12 Click board™.

The demo application is composed of two sections :

Application Init

Initialization of SPI module, log UART and additional pins. After driver initialization and default settings, the app set the time to 23:59:50 and set the date to 27.05.'21.


void application_init ( void ) {
    log_cfg_t log_cfg;      /**< Logger config object. */
    rtc12_cfg_t rtc12_cfg;   /**< Click config object. */

    /** 
     * 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.

    rtc12_cfg_setup( &rtc12_cfg );
    RTC12_MAP_MIKROBUS( rtc12_cfg, MIKROBUS_1 );
    err_t init_flag  = rtc12_init( &rtc12, &rtc12_cfg );
    if ( init_flag == SPI_MASTER_ERROR ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

    rtc12_default_cfg ( &rtc12 );
    log_info( &logger, " Application Task " );
    Delay_ms ( 100 );

    date.day_of_week = 4;
    date.day = 27;
    date.month = 5;
    date.year = 21;
    rtc12_set_date( &rtc12, date );
    Delay_ms ( 100 );

    time.hours = 23;
    time.min = 59;
    time.sec = 50;
    rtc12_set_time( &rtc12, time );
    Delay_ms ( 100 );
}

Application Task

This is an example that shows the use of a RTC 12 Click board™. In this example, we read and display the current time and date, which we also previously set. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on USB changes every 1 sec.


void application_task ( void ) {   
    rtc12_get_time( &rtc12, &time );
    Delay_ms ( 1 );
    rtc12_get_date( &rtc12, &date );
    Delay_ms ( 1 );

    if ( time.sec != new_sec ) {
        log_printf( &logger, "  Date      : %.2d-%.2d-%.2d\r\n", ( uint16_t ) date.day, ( uint16_t ) date.month, ( uint16_t ) date.year );
        log_printf( &logger, "  Time      : %.2d:%.2d:%.2d\r\n", ( uint16_t ) time.hours, ( uint16_t ) time.min, ( uint16_t ) time.sec );
        log_printf( &logger, "- - - - - - - - - - - -\r\n" );
        new_sec = time.sec;
        Delay_ms ( 1 );
     }
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Rtc12

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.


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