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mikroSDK Library

Buck 14 click

Rating:

5

Author: MIKROE

Last Updated: 2019-11-18

Package Version: 1.0.0.0

mikroSDK Library: 1.0.0.0

Category: Buck

Downloaded: 3152 times

Not followed.

License: MIT license  

The Buck 14 click is a Click board based around the BMR4613001/001, a PoL regulator from Flex. It's igh-efficiency step-down converter which provides a highly regulated output voltage derived from the connected power source, rated from 4.5 to 14V.

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  • mikroSDK Library 2.0.0.0
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mikroSDK Library Blog

Buck 14 click

Buck 14 click

Native view of the Buck 14 click board.

View full image
Buck 14 click

Buck 14 click

Front and back view of the Buck 14 click board.

View full image

Library Description

Library provides control over device pins, you can read state of some pins. You have ability to send and receive data from device, and control output V.

Key functions:

  • void buck14_read_data (uint8_t cmd, uint8_t *data_buf, uint8_t n_buf_size ) - Reads data from specific registar to buffer
  • void buck14_write_data (uint8_t cmd, uint8_t *data_buf, uint8_t n_buf_size ) - Writes data to specific registar to buffer
  • uint8_t buc14_write_vout( float vout ) - Sets output V
  • uint16_t buc14_read_vout( void ) - Returns output V in mV

Examples description

The application is composed of three sections :

  • System Initialization - Initialization of SPI module and setting pins to output
  • Application Initialization - Configure device, checks id, writes default command VOUT, checks if power is OK
  • Application Task - Sends 4 different commands for VOUT in span of 8sec
void application_task ( )
{
    vout_value = 1.2;
    status_data = buc14_write_vout( vout_value );
    error_handler( status_data );

    if ( status_data == BUCK14_SUCCESSFUL )
    {
        read_vout_data(  );
    }

    Delay_ms( 8000 );

    vout_value = 3.7;
    status_data = buc14_write_vout( vout_value );
    error_handler( status_data );

    if ( status_data == BUCK14_SUCCESSFUL )
    {
        read_vout_data(  );
    }

    Delay_ms( 8000 );
    
    vout_value = 2.5;
    status_data = buc14_write_vout( vout_value );
    error_handler( status_data );

    if ( status_data == BUCK14_SUCCESSFUL )
    {
        read_vout_data(  );
    }
    
    Delay_ms( 8000 );

    vout_value = 4.5;
    status_data = buc14_write_vout( vout_value );
    error_handler( status_data );

    if ( status_data == BUCK14_SUCCESSFUL )
    {
        read_vout_data(  );
    }
    
    Delay_ms( 4000 );
    mikrobus_logWrite( "```````````````", _LOG_LINE );
    Delay_ms( 4000 );
}

Additional Functions :

  • void error_handler ( uint8_t stat_data ) - Check if there was error in stat_data and returns message
  • void read_vout_data ( void ) - Reads current VOUT in mV

Note :

  • When you send data you should send LSB first
  • Device input V should be beetween 4.5 - 14 V
  • Device output V could be from 0.5 - 5 V deepending from limits you set currently it is set to 1V

Other mikroE Libraries used in the example:

  • Conversions
  • I2C
  • UART

Additional notes and informations

Depending on the development board you are using, you may need USB UART clickUSB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

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