buck18

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Buck 18 Click

Buck 18 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 : Nenad Filipovic
• Date : Jan 2024.
• Type : ADC/I2C type

Software Support

Example Description

This example demonstrates the use of the Buck 18 Click board by changing the output voltage.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Buck18

Example Key Functions

• buck18_cfg_setup Config Object Initialization function.

void buck18_cfg_setup ( buck18_cfg_t *cfg );

• buck18_init Initialization function.

err_t buck18_init ( buck18_t *ctx, buck18_cfg_t *cfg );

• buck18_default_cfg Click Default Configuration function.

err_t buck18_default_cfg ( buck18_t *ctx );

• buck18_set_vout This function sets the voltage output level.

err_t buck18_set_vout ( buck18_t *ctx, buck18_vout_t vout );

• buck18_read_voltage This function reads raw ADC value and converts it to proportional voltage level.

err_t buck18_read_voltage ( buck18_t *ctx, float *voltage );

• buck18_enable This function turns on the power switch and enables the buck mode.

void buck18_enable ( buck18_t *ctx );

Application Init

Initialization of I2C module and log UART. After driver initialization, the app executes a default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    buck18_cfg_t buck18_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.
    buck18_cfg_setup( &buck18_cfg );
    BUCK18_MAP_MIKROBUS( buck18_cfg, MIKROBUS_1 );
    err_t init_flag = buck18_init( &buck18, &buck18_cfg );
    if ( ( ADC_ERROR == init_flag ) || ( I2C_MASTER_ERROR == init_flag ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( BUCK18_ERROR == buck18_default_cfg ( &buck18 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

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

Application Task

The demo application changes the output voltage and displays the current voltage output value. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void ) 
{
    for ( buck18_vout_t vout = BUCK18_VOUT_3V3; vout <= BUCK18_VOUT_0V9; vout++ )
    {
        if ( BUCK18_OK == buck18_set_vout( &buck18, vout ) )
        {
            float voltage = 0;
            if ( BUCK18_OK == buck18_read_voltage( &buck18, &voltage ) ) 
            {
                log_printf( &logger, " Voltage : %.3f[V]\r\n\n", voltage );
                Delay_ms ( 1000 );
                Delay_ms ( 1000 );
                Delay_ms ( 1000 );
                Delay_ms ( 1000 );
                Delay_ms ( 1000 );
            }
        }
    }
}

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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