buck5

---

Buck 5 Click

Buck 5 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 : MikroE Team
• Date : sep 2020.
• Type : SPI type

Software Support

Example Description

Buck 5 Click is a high-efficiency buck DC/DC converter, which can provide digitally adjusted step-down voltage on its output while delivering a considerable amount of current. Buck 5 Click accepts a wide voltage range on its input - from 5V to 30V. The output voltage may be adjusted via the SPI interface, in the range from 0.9V to approximately 5.5V.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Buck5

Example Key Functions

• buck5_cfg_setup Config Object Initialization function.

void buck5_cfg_setup ( buck5_cfg_t *cfg );

• buck5_init Initialization function.

err_t buck5_init ( buck5_t *ctx, buck5_cfg_t *cfg );

• buck5_power_on This function wake up the chip.

void buck5_power_on ( buck5_t *ctx );

• buck5_reset This function reset the chip.

void buck5_reset ( buck5_t *ctx );

• buck5_set_output_voltage Maximum output voltage is 5.5V (255 set value), and minimum output voltage is 1V (0 set value).

void buck5_set_output_voltage ( buck5_t *ctx, uint8_t voltage );

Application Init

Initializes driver init, and enables the Click board.

void application_init ( void )
{
    log_cfg_t log_cfg;
    buck5_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.

    buck5_cfg_setup( &cfg );
    BUCK5_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    buck5_init( &buck5, &cfg );

    buck5_power_on( &buck5 );
    buck5_reset( &buck5 );
}

Application Task

Increases the output voltage by 500mV every 3 seconds from MIN to MAX VOUT.

void application_task ( void )
{
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_MIN );
    log_printf( &logger, "VOUT: MIN\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_1000mV );
    log_printf( &logger, "VOUT: ~1V\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_1500mV );
    log_printf( &logger, "VOUT: ~1.5V\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_2000mV );
    log_printf( &logger, "VOUT: ~2V\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_2500mV );
    log_printf( &logger, "VOUT: ~2.5V\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_3000mV );
    log_printf( &logger, "VOUT: ~3V\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_3500mV );
    log_printf( &logger, "VOUT: ~3.5V\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_4000mV );
    log_printf( &logger, "VOUT: ~4V\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_4500mV );
    log_printf( &logger, "VOUT: ~4.5V\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_5000mV );
    log_printf( &logger, "VOUT: ~5V\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    buck5_set_output_voltage( &buck5, BUCK5_VOLTAGE_MAX );
    log_printf( &logger, "VOUT: MAX\r\n" );
    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.

---