stepdown5

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Step Down 5 Click

Step Down 5 Click is a compact add-on board that converts a higher voltage into a lower voltage level. This board features the TPS628510, a high-efficiency, easy-to-use, synchronous step-down DC/DC converter from Texas Instruments.

Click Product page

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Click library

• Author : Stefan Ilic
• Date : Feb 2023.
• Type : I2C type

Software Support

We provide a library for the Step Down 5 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Step Down 5 Click driver.

Standard key functions :

• stepdown5_cfg_setup Config Object Initialization function.

void stepdown5_cfg_setup ( stepdown5_cfg_t *cfg );

• stepdown5_init Initialization function.

err_t stepdown5_init ( stepdown5_t *ctx, stepdown5_cfg_t *cfg );

• stepdown5_default_cfg Click Default Configuration function.

err_t stepdown5_default_cfg ( stepdown5_t *ctx );

Example key functions :

• stepdown5_set_wiper_0_pos Step Down 5 set wiper 0 position.

err_t stepdown5_set_wiper_0_pos ( stepdown5_t *ctx, uint16_t wiper_0_pos );

• stepdown5_set_r1_resistance Step Down 5 set potentiometer 0 resistance.

err_t stepdown5_set_r1_resistance ( stepdown5_t *ctx, uint32_t resistance );

• stepdown5_set_output Step Down 5 set output voltage.

err_t stepdown5_set_output ( stepdown5_t *ctx, uint8_t voltage );

Example Description

This library contains API for the Step Down 5 Click driver. This driver provides the functions to set the output voltage treshold.

The demo application is composed of two sections :

Application Init

Initialization of I2C module and log UART. After driver initialization, default settings sets output voltage to 0.6 V.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    stepdown5_cfg_t stepdown5_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.
    stepdown5_cfg_setup( &stepdown5_cfg );
    STEPDOWN5_MAP_MIKROBUS( stepdown5_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == stepdown5_init( &stepdown5, &stepdown5_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( STEPDOWN5_ERROR == stepdown5_default_cfg ( &stepdown5 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

Application Task

This example demonstrates the use of the Step Down 5 Click board™ by changing output voltage every 5 seconds starting from 0.6 V up to 3.3 V.

void application_task ( void ) 
{
    for ( uint8_t n_cnt = STEPDOWN5_OUTPUT_0V6; n_cnt <= STEPDOWN5_OUTPUT_3V3; n_cnt++ )
    {
        stepdown5_set_output( &stepdown5, n_cnt );
        log_printf( &logger, " Selected output is:" );
        print_selected_output_level ( n_cnt );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
        Delay_ms ( 1000 );
    }
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.StepDown5

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.

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