stepdown6

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Step Down 6 Click

Step Down 6 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 : Stefan Ilic
• Date : May 2023.
• Type : I2C type

Software Support

Example Description

This library contains API for the Step Down 6 Click driver. This driver provides the functions to set the output voltage threshold.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.StepDown6

Example Key Functions

• stepdown6_cfg_setup Config Object Initialization function.

void stepdown6_cfg_setup ( stepdown6_cfg_t *cfg );

• stepdown6_init Initialization function.

err_t stepdown6_init ( stepdown6_t *ctx, stepdown6_cfg_t *cfg );

• stepdown6_default_cfg Click Default Configuration function.

err_t stepdown6_default_cfg ( stepdown6_t *ctx );

• stepdown6_set_en_pin Step Down 6 set EN pin state function.

void stepdown6_set_en_pin ( stepdown6_t *ctx, uint8_t pin_state );

• stepdown6_write_reg Step Down 6 Register writing function.

err_t stepdown6_write_reg ( stepdown6_t *ctx, uint8_t reg, uint8_t data_in );

• stepdown6_set_out_voltage Step Down 6 Set output voltage function.

err_t stepdown6_set_out_voltage ( stepdown6_t *ctx, uint8_t out_sel, uint16_t out_val );

Application Init

Initialization of I2C module and log UART. After driver initialization, default settings sets output voltage to 550 mV.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    stepdown6_cfg_t stepdown6_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.
    stepdown6_cfg_setup( &stepdown6_cfg );
    STEPDOWN6_MAP_MIKROBUS( stepdown6_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == stepdown6_init( &stepdown6, &stepdown6_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( STEPDOWN6_ERROR == stepdown6_default_cfg ( &stepdown6 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    log_info( &logger, " Application Task " );
}

Application Task

This example demonstrates the use of the Step Down 6 Click board™ by changing output voltage every 5 seconds starting from 550 mV up to 1820 mV.

void application_task ( void ) 
{
    err_t error_flag = STEPDOWN6_OK;
    for ( uint16_t n_cnt = STEPDOWN6_MIN_VOUT_VAL; n_cnt <= STEPDOWN6_MAX_VOUT_VAL; n_cnt += STEPDOWN6_INCREMENT_VOUT_VAL )
    {
        error_flag |= stepdown6_set_out_voltage( &stepdown6, STEPDOWN6_SELECT_VOUT1, n_cnt );
        error_flag |= stepdown6_set_out_voltage( &stepdown6, STEPDOWN6_SELECT_VOUT2, n_cnt );
        error_flag |= stepdown6_set_out_voltage( &stepdown6, STEPDOWN6_SELECT_VOUT3, n_cnt );
        error_flag |= stepdown6_set_out_voltage( &stepdown6, STEPDOWN6_SELECT_VOUT4, n_cnt );
        log_printf( &logger, "  Set voltage : %d mV \r\n", n_cnt );
        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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