Boost 7 Click

Boost 7 Click is a compact add-on board that steps up the voltage from its input (supply) to its output (load). This board features the BD8316GWL, a dual DC/DC converter from Rohm Semiconductor. Each converter inside the BD8316GWL is designed with up to 200mA current limit generating well-regulated positive and negative outputs of ±3.3V or ±5V, making the BD8316GWL ideal for various applications. In addition to the possibility of working with both mikroBUS™ power rails, it also provides the opportunity of using an external power supply with a very low voltage of 2.5V.

Click Product page

Click library

• Author : Stefan Filipovic
• Date : Sep 2022.
• Type : GPIO type

Software Support

We provide a library for the Boost 7 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 Boost 7 Click driver.

Standard key functions :

• boost7_cfg_setup Config Object Initialization function.

  void boost7_cfg_setup ( boost7_cfg_t *cfg );

• boost7_init Initialization function.

  err_t boost7_init ( boost7_t *ctx, boost7_cfg_t *cfg );

Example key functions :

• boost7_enable_out1 This function enables the OUT1 (V-) by setting the STB1 pin to high logic state.

  void boost7_enable_out1 ( boost7_t *ctx );

• boost7_disable_out1 This function disables the OUT1 (V-) by setting the STB1 pin to low logic state.

  void boost7_disable_out1 ( boost7_t *ctx );

• boost7_enable_out2 This function enables the OUT2 (V+) by setting the STB2 pin to high logic state.

  void boost7_enable_out2 ( boost7_t *ctx );

Example Description

This example demonstrates the use of Boost 7 Click board by controlling the V- and V+ outputs state.

The demo application is composed of two sections :

Application Init

Initializes the driver and logger.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    boost7_cfg_t boost7_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.
    boost7_cfg_setup( &boost7_cfg );
    BOOST7_MAP_MIKROBUS( boost7_cfg, MIKROBUS_1 );
    if ( DIGITAL_OUT_UNSUPPORTED_PIN == boost7_init( &boost7, &boost7_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
}

Application Task

Toggles the V- and V+ outputs state every 5 seconds and displays their state on the USB UART.

void application_task ( void )
{
    log_printf( &logger, " OUT1 (V-) : ENABLED\r\n" );
    log_printf( &logger, " OUT2 (V+) : DISABLED\r\n\n" );
    boost7_enable_out1 ( &boost7 );
    boost7_disable_out2 ( &boost7 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, " OUT1 (V-) : DISABLED\r\n" );
    log_printf( &logger, " OUT2 (V+) : ENABLED\r\n\n" );
    boost7_disable_out1 ( &boost7 );
    boost7_enable_out2 ( &boost7 );
    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.Boost7

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.