brushless8  2.0.0.0
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Brushless 8 click

Brushless 8 Click is a compact add-on board suitable for controlling BLDC motors with any MCU. This board features the TC78B042FTG, a sine-wave PWM drive three-phase full-wave brushless motor controller from Toshiba Semiconductor.

click Product page


Click library

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

Software Support

We provide a library for the Brushless8 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 Brushless8 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void brushless8_cfg_setup ( brushless8_cfg_t *cfg );

  • Initialization function.

    BRUSHLESS8_RETVAL brushless8_init ( brushless8_t *ctx, brushless8_cfg_t *cfg );

  • Click Default Configuration function.

    void brushless8_default_cfg ( brushless8_t *ctx );

Example key functions :

  • brushless8_cfg_setup function initializes click configuration structure to initial values.
    brushless8_cfg_setup( &brushless8_cfg );
  • brushless8_init function initializes all necessary pins and peripherals used for this click board.
    BRUSHLESS8_RETVAL init_flag = brushless8_init( &brushless8, &brushless8_cfg );
  • brushless8_default_cfg function executes a default configuration of Brushless 8 click board.
    brushless8_default_cfg ( &brushless8 );

Examples Description

This example showcases how to initialize and use the Brushless 8 click. This application is a schowcase of controlling speed and direction of brushless motor with hall sesnor.

The demo application is composed of two sections :

Application Init

Initializes the click board to appropriate settings based on selected mode. Initialization settings are sent through I2C bus and the motor itself is controlled via PWM or DAC over I2C.

  • Modes:
    • BRUSHLESS8_PWM
    • BRUSHLESS8_DAC
void application_init ( void )
{
log_cfg_t log_cfg;
brushless8_cfg_t brushless8_cfg;
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, "Application Init" );
// Click initialization.
brushless8_cfg_setup( &brushless8_cfg );
// Select desired mode.
brushless8_cfg.ctrl_mod = BRUSHLESS8_MODE;
BRUSHLESS8_MAP_MIKROBUS( brushless8_cfg, MIKROBUS_1 );
BRUSHLESS8_RETVAL init_flag = brushless8_init( &brushless8, &brushless8_cfg );
if ( BRUSHLESS8_OK != init_flag )
{
log_error( &logger, "Application Init Error" );
log_info( &logger, "Please, run program again..." );
for ( ; ; );
}
brushless8_default_cfg ( &brushless8 );
if ( BRUSHLESS8_PWM == brushless8.ctrl_mod )
{
brushless8_set_duty_cycle( &brushless8, 0 );
brushless8_pwm_start( &brushless8 );
Delay_ms( 3000 );
}
log_info( &logger, "Application Task" );
log_printf( &logger, "------------------------------\r\n" );
}

Application Task

This example demonstrates the use of Brushless 8 click board. Brushless 8 click communicates with the device via I2C driver in order to set adequate voltage level for connected motor. Current PWM/DAC settings being output are sent via logger. 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;
brushless8_set_duty_cycle ( &brushless8, duty );
log_printf( &logger, "> Duty: %d%%\r\n", ( uint16_t )( duty_cnt * 10 ) );
Delay_ms( 500 );
if ( 10 == duty_cnt )
{
duty_inc = -1;
}
else if ( 0 == duty_cnt )
{
duty_inc = 1;
}
duty_cnt += duty_inc;
}

Note

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.Brushless8

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.


brushless8_set_duty_cycle
void brushless8_set_duty_cycle(brushless8_t *ctx, float duty_cycle)
Sets PWM duty cycle.
brushless8_cfg_t
Brushless 8 Click configuration object.
Definition: brushless8.h:341
BRUSHLESS8_MAP_MIKROBUS
#define BRUSHLESS8_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: brushless8.h:300
brushless8_init
BRUSHLESS8_RETVAL brushless8_init(brushless8_t *ctx, brushless8_cfg_t *cfg)
Brushless 8 initialization function.
BRUSHLESS8_RETVAL
#define BRUSHLESS8_RETVAL
Brushless 8 function status.
Definition: brushless8.h:109
BRUSHLESS8_PWM
#define BRUSHLESS8_PWM
Definition: brushless8.h:282
application_task
void application_task(void)
Definition: main.c:101
BRUSHLESS8_MODE
#define BRUSHLESS8_MODE
Definition: main.c:41
brushless8_cfg_t::ctrl_mod
uint8_t ctrl_mod
Definition: brushless8.h:358
brushless8_default_cfg
BRUSHLESS8_RETVAL brushless8_default_cfg(brushless8_t *ctx)
Brushless 8 default configuration function.
brushless8_set_dac_vout
int8_t brushless8_set_dac_vout(brushless8_t *ctx, uint8_t dac_chn, uint16_t vout)
Brushless 8 I2C function for setting vout.
application_init
void application_init(void)
Definition: main.c:52
BRUSHLESS8_DAC_REG_CHN_A_DVSP
#define BRUSHLESS8_DAC_REG_CHN_A_DVSP
Definition: brushless8.h:64
brushless8_cfg_setup
void brushless8_cfg_setup(brushless8_cfg_t *cfg)
Brushless 8 configuration object setup function.
BRUSHLESS8_OK
#define BRUSHLESS8_OK
Definition: brushless8.h:110
brushless8_pwm_start
void brushless8_pwm_start(brushless8_t *ctx)
Starts PWM module.