rtc

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RTC Click

RTC 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.

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Click Library

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

Software Support

Example Description

This application enables setup and measurement of time with RTC Click.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Rtc

Example Key Functions

• rtc_c_cfg_setup Config Object Initialization function.

void rtc_c_cfg_setup ( rtc_c_cfg_t *cfg ); 

• rtc_c_init Initialization function.

err_t rtc_c_init ( rtc_c_t *ctx, rtc_c_cfg_t *cfg );

• rtc_c_set_time Function sets time: hours, minutes and seconds data to the target register address of PCF8583 chip on RTC Click.

void rtc_c_set_time ( rtc_c_t *ctx );

• rtc_c_get_time Function gets time: hours, minutes and seconds data from the target register address of PCF8583 chip on RTC Click.

void rtc_c_get_time ( rtc_c_t *ctx );

• rtc_c_enable_disable_counting Function that enables or disables counting on RTC Click.

void rtc_c_enable_disable_counting ( rtc_c_t *ctx, uint8_t en_dis );

Application Init

Initialization driver enable's - I2C, set start time, enable counting and start write log.

void application_init ( void )
{
    log_cfg_t log_cfg;
    rtc_c_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.
    rtc_c_cfg_setup( &cfg );
    RTC_C_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    rtc_c_init( &rtc_c, &cfg );

    log_printf( &logger, "------------------\r\n" );
    log_printf( &logger, "     RTC Click    \r\n" );
    log_printf( &logger, "------------------\r\n" );

    // Set Time: 23h, 59 min, 50 sec and 10 ms
    rtc_c.time.time_hours = 23;
    rtc_c.time.time_minutes = 59;
    rtc_c.time.time_seconds = 50;
    rtc_c.time.time_hun_sec = 10;

    rtc_c_set_time( &rtc_c );
    Delay_100ms( );
    
    // Start counting
    rtc_c_enable_disable_counting( &rtc_c, 1 );
    Delay_100ms( );
    
    log_info( &logger, " Application Task " );
}

Application Task

This is an example which demonstrates the use of RTC Click board. RTC Click communicates with register via I2C by write to register and read from register. This example show time when the value of time_seconds is changed. Results are being sent to the Usart Terminal where you can track their changes. All data logs write on usb uart changes for every 1 sec.

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

    rtc_c_get_time( &rtc_c );

    if ( time_seconds_new != rtc_c.time.time_seconds )
    {
        log_printf( &logger, " Time : %.2u:%.2u:%.2u\r\n", 
                    ( uint16_t ) rtc_c.time.time_hours, 
                    ( uint16_t ) rtc_c.time.time_minutes, 
                    ( uint16_t ) rtc_c.time.time_seconds );

        log_printf( &logger, "------------------\r\n" );

        time_seconds_new = rtc_c.time.time_seconds;
    }

    Delay_ms ( 500 );
}

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.

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