buck11

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Buck 11 Click

Buck 11 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 : dec 2019.
• Type : I2C type

Software Support

Example Description

This aplication control voltage using Buck 11.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Buck11

Example Key Functions

• buck11_cfg_setup Config Object Initialization function.

void buck11_cfg_setup ( buck11_cfg_t *cfg );

• buck11_init Initialization function.

err_t buck11_init ( buck11_t *ctx, buck11_cfg_t *cfg );

• buck11_default_cfg Click Default Configuration function.

void buck11_default_cfg ( buck11_t *ctx );

• buck11_read_adc ADC Read function.

uint16_t buck11_read_adc( buck11_t *ctx );

• `` Get VOUT function.

buck11_get_vout  ( buck11_t *ctx, uint8_t vout_resolution );

• buck11_get_averaged_vout Get Averaged VOUT function.

float buck11_get_averaged_vout( buck11_t *ctx, uint8_t vout_resolution, uint8_t n_samples );

Application Init

Initializes I2C serial interface and selects the desired VDD voltage value and VOUT value resolution (to get VOUT value in Volts).

void application_init ( void )
{
    log_cfg_t log_cfg;
    buck11_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.

    buck11_cfg_setup( &cfg );
    BUCK11_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    buck11_init( &buck11, &cfg );

    Delay_ms ( 500 );
    
    buck11_set_vdd_value( 4.935 );
    vout_resol = BUCK11_VOUT_VOLTS;
    
    log_printf( &logger, "** Buck 11 is initialized ** \r\n" );
    log_printf( &logger, "************************************* \r\n" );
    Delay_ms ( 200 );
}

Application Task

Reads the averaged VOUT voltage calculated to Volts by performing a 30 conversions in one measurement cycle. The measured results will be showed on the uart terminal every 300 milliseconds.

void application_task ( )
{
    float vout_value;
    uint8_t vout_resol;

    vout_value = buck11_get_averaged_vout( &buck11, vout_resol, 30 );

    log_printf( &logger, "VOUT:  \r\n", vout_value );
    
    if (vout_resol == BUCK11_VOUT_VOLTS)
    {
        log_printf( &logger, " V \r\n" );
    }
    else
    {
        log_printf( &logger, " mV \r\n" );
    }
    
    log_printf( &logger, "************************************* \r\n" );
    Delay_ms ( 300 );
}

Note

The user should measure the VDD voltage value and enter this measured value to the function as VDD value to get more accurate measurement. This VDD voltage is used as reference voltage for the AD conversion. The input voltage (VIN) range is from 4.2V to 60V. The output current (IOUT) value should not be greater than 1.5A.

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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