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mikroSDK Library

Brushless 4 Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.13

mikroSDK Library: 2.0.0.0

Category: Brushless

Downloaded: 320 times

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License: MIT license  

Brushless 4 Click is a 3 phase sensorless BLDC motor driver, which features a 180° sinusoidal drive, providing high efficiency and low acoustic noise. This type of drivers inherently provides higher torque in general, compared to classical 120° BLDC motor drivers.

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  • mikroSDK Library 1.0.0.0
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Brushless 4 Click

Brushless 4 Click is a 3 phase sensorless BLDC motor driver, which features a 180° sinusoidal drive, providing high efficiency and low acoustic noise. This type of drivers inherently provides higher torque in general, compared to classical 120° BLDC motor drivers.

brushless4_click.png

Click Product page


Click library

  • Author : Nikola Peric
  • Date : Feb 2022.
  • Type : PWM type

Software Support

We provide a library for the Brushless4 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for Brushless4 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void brushless4_cfg_setup ( brushless4_cfg_t *cfg );

  • Initialization function.

    BRUSHLESS4_RETVAL brushless4_init ( brushless4_t ctx, brushless4_cfg_t cfg );

  • Click Default Configuration function.

    void brushless4_default_cfg ( brushless4_t *ctx );

Example key functions :

  • This function sets the PWM duty cycle.

    void brushless4_set_duty_cycle ( brushless4_t *ctx, pwm_data_t duty_cycle );

  • This function starts PWM module.

    void brushless4_pwm_start ( brushless4_t *ctx );

  • This function sets the state of the PWM pin.

    void brushless4_pwm_pin ( brushless4_t *ctx, uint8_t state );

Examples Description

This Click has many features for driving a wide range of small to medium BLDC motors. It provides the rotor position digital output, via the FG pin, routed to the mikroBUS INT pin.

The demo application is composed of two sections :

Application Init

Initializes the GPIO driver and configures the PWM peripheral for controlling the speed of the motor.


void application_init ( void )
{
    log_cfg_t log_cfg;
    brushless4_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.

    brushless4_cfg_setup( &cfg );
    BRUSHLESS4_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    brushless4_init( &brushless4, &cfg );

    brushless4_set_duty_cycle ( &brushless4, 0.0 );
    brushless4_pwm_start( &brushless4 );  

    log_info( &logger, "---- Application Task ----" );
    Delay_ms ( 1000 );
}

Application Task

This is an example that demonstrates the use of a Brushless 4 Click board. Brushless 4 Click communicates with the register via the PWM interface.
Increases and decreasing the speed of the motor demonstrate speed control. Results are being sent to the Usart Terminal where you can track their changes.


void application_task ( void )
{
    static int8_t duty_cnt = 1;
    static int8_t duty_inc = 1;
    float duty = duty_cnt / 10.0;

    brushless4_set_duty_cycle ( &brushless4, duty );
    log_printf( &logger, "Duty: %d%%\r\n", ( uint16_t )( duty_cnt * 10 ) );
    Delay_ms ( 500 );

    if ( 10 == duty_cnt ) 
    {
        duty_inc = -1;
        log_printf( &logger, " Slowing down... \r\n" );
    }
    else if ( 0 == duty_cnt ) 
    {
        duty_inc = 1;
        log_printf( &logger, " Increasing the motor speed... \r\n" );
    }
    duty_cnt += duty_inc;
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Brushless4

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. 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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