3xbuck

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3 x Buck Click

3 x Buck 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 : Petar Suknjaja
• Date : Dec 2019.
• Type : I2C type

Software Support

Example Description

This example demonstrates the use of the 3 x Buck Click Board.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.3xBuck

Example Key Functions

• c3xbuck_cfg_setup Config Object Initialization function.

void c3xbuck_cfg_setup ( c3xbuck_cfg_t *cfg );

• c3xbuck_init Initialization function.

err_t c3xbuck_init ( c3xbuck_t *ctx, c3xbuck_cfg_t *cfg );

• c3xbuck_default_cfg Click Default Configuration function.

void c3xbuck_default_cfg ( c3xbuck_t *ctx );

• c3xbuck_enable_buck This function enables desired Buck on the Click.

void c3xbuck_enable_buck ( c3xbuck_t *ctx, uint8_t buck );

• c3xbuck_disable_buck This function disables desired Buck on the Click.

void c3xbuck_disable_buck ( c3xbuck_t *ctx, uint8_t buck );

• c3xbuck_set_voltage This function sets voltage on desired Buck.

void c3xbuck_set_voltage ( c3xbuck_t *ctx, uint8_t buck, uint8_t voltage );

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;
    c3xbuck_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.

    c3xbuck_cfg_setup( &cfg );
    C3XBUCK_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    c3xbuck_init( &c3xbuck, &cfg );
    Delay_ms ( 100 );
    
    c3xbuck_default_cfg ( &c3xbuck );
    log_info( &logger, "---- Application Task ----" );
}

Application Task

Alternates between predefined and default values for the Bucks output and logs the current set values on the USB UART.

void application_task ( void )
{
    //  Task implementation.
    log_printf( &logger, "Setting predefined values : \r\n" );
    log_printf( &logger, "Buck 1 : 1000 mV\r\n");
    log_printf( &logger, "Buck 2 : 1250 mV\r\n");
    log_printf( &logger, "Buck 3 : 1500 mV\r\n");
    
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_1, C3XBUCK_OUTPUT_VOLTAGE_1000mV );
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_2, C3XBUCK_OUTPUT_VOLTAGE_1250mV );
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_3, C3XBUCK_OUTPUT_VOLTAGE_1500mV );
    
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    
    log_printf( &logger, "Setting default values: \r\n");
    log_printf( &logger, "Buck 1 : 1800 mV\r\n");
    log_printf( &logger, "Buck 2 : 3300 mV\r\n");
    log_printf( &logger, "Buck 3 : 5000 mV\r\n");
    
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_1, C3XBUCK_BUCK_DEFAULT_OUTPUT_VOLTAGE );
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_2, C3XBUCK_BUCK_DEFAULT_OUTPUT_VOLTAGE );
    c3xbuck_set_voltage( &c3xbuck, C3XBUCK_SELECT_BUCK_3, C3XBUCK_BUCK_DEFAULT_OUTPUT_VOLTAGE );
    
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

Note

The default output voltage on Buck 1 is 1800mV, Buck 2 is 3300mV, and Buck 3 is 5000mV. Configurable output voltage on all Bucks ranges from 680mV to 1950mV.

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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