brushless3  2.0.0.0
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Brushless 3 click

Brushless 3 click carries the DRV10983, a three-phase sensorless motor driver with integrated power MOSFETs. When an external power supply is applied, you can drive a brushless DC motor through the PWM pin, AN pin or I2C interface.

click Product page


Click library

  • Author : MikroE Team
  • Date : Jan 2020.
  • Type : I2C type

Software Support

We provide a library for the Brushless3 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 Brushless3 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void brushless3_cfg_setup ( brushless3_cfg_t *cfg );

  • Initialization function.

    BRUSHLESS3_RETVAL brushless3_init ( brushless3_t *ctx, brushless3_cfg_t *cfg );

  • Click Default Configuration function.

    void brushless3_default_cfg ( brushless3_t *ctx );

Example key functions :

  • Function get the speed command ( % ) based on analog or PWM or I2C by read the value from the target Speed CMD register address.

    float brushless3_get_speed_cmd ( brushless3_t *ctx );

  • Function set the direction of rotation in the forward direction by sets PWM and RST pin on Brushless 3 Click board.

    void brushless3_forward_direction ( brushless3_t *ctx );

  • Function set the direction of rotation in the reverse direction by sets PWM and clear RST pin on Brushless 3 Click board.

    void brushless3_reverse_direction ( brushless3_t *ctx );

Examples Description

This click has three-phase sensorless motor driver and with an external power supply it drives a brushless DC motor.

The demo application is composed of two sections :

Application Init

Initialization driver enable's - I2C, set default parameter value.

void application_init ( void )
{
log_cfg_t log_cfg;
// Logger initialization.
LOG_MAP_USB_UART( log_cfg );
log_cfg.level = LOG_LEVEL_DEBUG;
log_cfg.baud = 9600;
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
BRUSHLESS3_MAP_MIKROBUS( cfg, MIKROBUS_1 );
brushless3_init( &brushless3, &cfg );
brushless3_default_cfg( &brushless3 );
brushless3_pwm_start( &brushless3 );
brushless3_set_duty_cycle ( &brushless3, duty_cycle );
Delay_ms( 4000 );
}

Application Task

This is an example which demonstrates the use of Brushless 3 Click board. Read and display float motor frequency value from the DRV10983 sensorless BLDC motor driver on Brushless 3 click board. Results are being sent to the Usart Terminal where you can track their changes.

void application_task ( void )
{
log_printf( &logger, " acceleration \r\n" );
for ( speed = 100; speed <= BRUSHLESS3_MAX_SPEED; speed += 20 )
{
brushless3_set_speed( &brushless3, speed );
velocity = brushless3_get_speed( &brushless3 );
log_printf( &logger, " Motor frequency: %.2f Hz\r\n", velocity );
Delay_ms( 100 );
}
log_printf( &logger, "\r\n ---------------------- \r\n" );
log_printf( &logger, " slowing down \r\n" );
for ( speed = BRUSHLESS3_MAX_SPEED; speed >= 50; speed -= 20 )
{
brushless3_set_speed( &brushless3, speed );
velocity = brushless3_get_speed( &brushless3 );
log_printf( &logger, " Motor frequency: %.2f Hz\r\n", velocity );
Delay_ms( 100 );
}
log_printf( &logger, "-----------------------\r\n" );
Delay_ms( 1000 );
}

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.Brushless3

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.


brushless3_get_speed
float brushless3_get_speed(brushless3_t *ctx)
Get speed function.
brushless3_forward_direction
void brushless3_forward_direction(brushless3_t *ctx)
Set the direction of rotation in the forward direction function.
application_task
void application_task(void)
Definition: main.c:68
brushless3_pwm_start
void brushless3_pwm_start(brushless3_t *ctx)
Start PWM module.
brushless3_default_cfg
void brushless3_default_cfg(brushless3_t *ctx)
Click Default Configuration function.
brushless3_cfg_setup
void brushless3_cfg_setup(brushless3_cfg_t *cfg)
Config Object Initialization function.
brushless3_set_speed
void brushless3_set_speed(brushless3_t *ctx, uint16_t motor_speed_hz)
Set speed function.
application_init
void application_init(void)
Definition: main.c:41
BRUSHLESS3_MAX_SPEED
#define BRUSHLESS3_MAX_SPEED
Definition: brushless3.h:73
brushless3_init
BRUSHLESS3_RETVAL brushless3_init(brushless3_t *ctx, brushless3_cfg_t *cfg)
Initialization function.
brushless3_cfg_t
Click configuration structure definition.
Definition: brushless3.h:177
brushless3_set_duty_cycle
void brushless3_set_duty_cycle(brushless3_t *ctx, float duty_cycle)
Generic sets PWM duty cycle.
brushless3_set_default_param
void brushless3_set_default_param(brushless3_t *ctx)
Set default parameter function.
BRUSHLESS3_MAP_MIKROBUS
#define BRUSHLESS3_MAP_MIKROBUS(cfg, mikrobus)
Definition: brushless3.h:54