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Buck 19 Click

Buck 19 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 : Stefan Filipovic
  • Date : Aug 2022.
  • Type : I2C type

Software Support

Example Description

This example demonstrates the use of Buck 19 Click board by iterating through the entire output voltage range.

Example Libraries

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Buck19

Example Key Functions

  • buck19_cfg_setup Config Object Initialization function.
void buck19_cfg_setup ( buck19_cfg_t *cfg );
  • buck19_init Initialization function.
err_t buck19_init ( buck19_t *ctx, buck19_cfg_t *cfg );
  • buck19_default_cfg Click Default Configuration function.
err_t buck19_default_cfg ( buck19_t *ctx );
  • buck19_write_register This function writes a desired data to the selected register by using I2C serial interface.
err_t buck19_write_register ( buck19_t *ctx, uint8_t reg, uint8_t data_in );
  • buck19_set_vout This function sets the voltage output.
err_t buck19_set_vout ( buck19_t *ctx, float vout );
  • buck19_set_ilimit This function sets the current limit.
err_t buck19_set_ilimit ( buck19_t *ctx, uint16_t ilimit );

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    buck19_cfg_t buck19_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.
    buck19_cfg_setup( &buck19_cfg );
    BUCK19_MAP_MIKROBUS( buck19_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == buck19_init( &buck19, &buck19_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( BUCK19_ERROR == buck19_default_cfg ( &buck19 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
}

Application Task

Changes the output voltage every 3 seconds and displays on the USB UART the currently set voltage output value.

void application_task ( void )
{
    static float vout = BUCK19_VOUT_MIN;
    if ( BUCK19_OK == buck19_set_vout ( &buck19, vout ) )
    {
        log_printf ( &logger, " VOUT: %.2f V\r\n\n", vout );
    }
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    vout += 0.5f;
    if ( vout > ( BUCK19_VOUT_MAX + BUCK19_FLOAT_COMPARE_TOLERANCE ) )
    {
        vout = BUCK19_VOUT_MIN;
    }
}

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.