brushless11  2.1.0.0
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Brushless 11 click

Brushless 11 Click is a compact add-on board that controls brushless DC motors with any MCU. This board features the A4931, a 3-phase brushless DC motor pre-driver from Allegro Microsystems. It drives six onboard N-channel power MOSFETs and supplies the motor with 8V up to 30V voltages. This pre-driver offers enable, direction, and brake inputs that can control motor functions and logic outputs for measuring motor rotation.

click Product page


Click library

  • Author : Stefan Ilic
  • Date : Aug 2023.
  • Type : PWM type

Software Support

We provide a library for the Brushless 11 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 Brushless 11 Click driver.

Standard key functions :

Example key functions :

Example Description

This example demonstrates the use of the Brushless 11 click board by driving the

motor at different speeds.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the click default configuration.

void application_init ( void )
{
log_cfg_t log_cfg;
brushless11_cfg_t brushless11_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
brushless11_cfg_setup( &brushless11_cfg );
BRUSHLESS11_MAP_MIKROBUS( brushless11_cfg, MIKROBUS_1 );
if ( PWM_ERROR == brushless11_init( &brushless11, &brushless11_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( BRUSHLESS11_ERROR == brushless11_default_cfg ( &brushless11 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}

Application Task

Controls the motor speed by changing the PWM duty cycle every second.

The duty cycle ranges from 10% to 100%. Each step will be logged on the USB UART where you can track the program flow.

void application_task ( void )
{
log_printf( &logger, " Motor brake is off \r\n" );
for ( uint8_t speed_cnt = 10; speed_cnt <= 100; speed_cnt += 10 )
{
brushless11_set_speed( &brushless11, speed_cnt );
log_printf( &logger, " Speed is: %d%% \r\n", ( uint16_t ) speed_cnt );
Delay_ms( 1000 );
}
log_printf( &logger, " Motor brake is on \r\n" );
Delay_ms( 2000 );
}

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.Brushless11

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.


brushless11_cfg_t
Brushless 11 Click configuration object.
Definition: brushless11.h:136
BRUSHLESS11_MAP_MIKROBUS
#define BRUSHLESS11_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: brushless11.h:101
brushless11_init
err_t brushless11_init(brushless11_t *ctx, brushless11_cfg_t *cfg)
Brushless 11 initialization function.
BRUSHLESS11_BRAKE_OFF
#define BRUSHLESS11_BRAKE_OFF
Definition: brushless11.h:83
application_task
void application_task(void)
Definition: main.c:65
brushless11_get_fg1_pin
uint8_t brushless11_get_fg1_pin(brushless11_t *ctx)
Brushless 11 get FG1 pin state function.
brushless11_cfg_setup
void brushless11_cfg_setup(brushless11_cfg_t *cfg)
Brushless 11 configuration object setup function.
BRUSHLESS11_ERROR
@ BRUSHLESS11_ERROR
Definition: brushless11.h:157
brushless11_set_brake
void brushless11_set_brake(brushless11_t *ctx, uint8_t brake_state)
Brushless 11 set motor brake state function.
brushless11_default_cfg
err_t brushless11_default_cfg(brushless11_t *ctx)
Brushless 11 default configuration function.
BRUSHLESS11_BRAKE_ON
#define BRUSHLESS11_BRAKE_ON
Brushless 11 brake states.
Definition: brushless11.h:82
application_init
void application_init(void)
Definition: main.c:29
brushless11_t
Brushless 11 Click context object.
Definition: brushless11.h:115
brushless11_set_speed
err_t brushless11_set_speed(brushless11_t *ctx, uint8_t speed)
Brushless 11 set motor speed.