Beginner
10 min

Steer brushless motor with precision using TMC6300 and STM32F413ZH

Power driver for BLDC/PMSM motors

Brushless 27 Click with Nucleo 144 with STM32F413ZH MCU

Published Feb 14, 2024

Click board™

Brushless 27 Click

Dev. board

Nucleo 144 with STM32F413ZH MCU

Compiler

NECTO Studio

MCU

STM32F413ZH

Optimize the performance of a BLDC motor with precise control over the flow of electrical power

A

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Hardware Overview

How does it work?

Brushless 27 Click is based on the TMC6300, a power driver for BLDC/PMSM motors from Analog Devices. It integrates a charge pump and ultra-low standby current, ensuring the best efficiency and longest battery life. The 3-phase driver offers three half-bridges with individual enable signals for low-side and high-side. It is optimized for BLDC motor control, as well as control of other magnetic actuators. Each MOSFET of each half-bridge can be individually switched on and off. Internal break-before-make (BBM) logic ensures that no cross-conduction occurs. The driver operates a BLDC motor with a block or sine-commutation using 6-line control from the PCA9538, a low-voltage

8-bit I/O port from NXP. The foot-points of the motor driver are connected via a sense resistor to the LMV321, a low-voltage rail-to-rail output operational amplifier from Texas Instruments. This OP-AMP allows current measurement of the motor to control or limit motor torque. You can change this sense resistor (R9) to set other maximum motor current values according to the table at the bottom of the Brushless 27 Click. The external power supply in a range of 2 – 11V can be connected over the INPUT screw terminal. Brushless 27 Click uses a standard 2-wire I2C interface of the PCA9538 to communicate with the host MCU, supporting clock frequency of up to

400kHz. The I2C address can be selected over the ADDR SEL jumpers. The I/O prot can be reset over the RST pin, while the host MCU can measure the current over the SEN pin. The diagnostic output signals any overcurrent or overtemperature condition over the INT pin. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used for further development.

Brushless 27 Click hardware overview image

Features overview

Development board

Nucleo-144 with STM32F413ZH MCU board offers an accessible and adaptable avenue for users to explore new ideas and construct prototypes. It allows users to tailor their experience by selecting from a range of performance and power consumption features offered by the STM32 microcontroller. With compatible boards, the

internal or external SMPS dramatically decreases power usage in Run mode. Including the ST Zio connector, expanding ARDUINO Uno V3 connectivity, and ST morpho headers facilitate easy expansion of the Nucleo open development platform. The integrated ST-LINK debugger/programmer enhances convenience by

eliminating the need for a separate probe. Moreover, the board is accompanied by comprehensive free software libraries and examples within the STM32Cube MCU Package, further enhancing its utility and value.

Nucleo 144 with STM32F413ZH MCU double side image

Microcontroller Overview

MCU Card / MCU

default

Architecture

ARM Cortex-M4

MCU Memory (KB)

1536

Silicon Vendor

STMicroelectronics

Pin count

144

RAM (Bytes)

327680

You complete me!

Accessories

Click Shield for Nucleo-144 comes equipped with four mikroBUS™ sockets, with one in the form of a Shuttle connector, allowing all the Click board™ devices to be interfaced with the STM32 Nucleo-144 board with no effort. This way, MIKROE allows its users to add any functionality from our ever-growing range of Click boards™, such as WiFi, GSM, GPS, Bluetooth, ZigBee, environmental sensors, LEDs, speech recognition, motor control, movement sensors, and many more. Featuring an ARM Cortex-M microcontroller, 144 pins, and Arduino™ compatibility, the STM32 Nucleo-144 board offers limitless possibilities for prototyping and creating diverse applications. These boards are controlled and powered conveniently through a USB connection to program and efficiently debug the Nucleo-144 board out of the box, with an additional USB cable connected to the USB mini port on the board. Simplify your project development with the integrated ST-Link debugger and unleash creativity using the extensive I/O options and expansion capabilities. This Click Shield also has several switches that perform functions such as selecting the logic levels of analog signals on mikroBUS™ sockets and selecting logic voltage levels of the mikroBUS™ sockets themselves. Besides, the user is offered the possibility of using any Click board™ with the help of existing bidirectional level-shifting voltage translators, regardless of whether the Click board™ operates at a 3.3V or 5V logic voltage level. Once you connect the STM32 Nucleo-144 board with our Click Shield for Nucleo-144, you can access hundreds of Click boards™, working with 3.3V or 5V logic voltage levels.

Click Shield for Nucleo-144 accessories 1 image

Brushless DC (BLDC) Motor with a Hall sensor represents a high-performance motor from the 42BLF motor series. This motor, wired in a star configuration, boasts a Hall Effect angle of 120°, ensuring precise and reliable performance. With a compact motor length of 47mm and a lightweight design tipping the scales at just 0.29kg, this BLDC motor is engineered to meet your needs. Operating flawlessly at a voltage rating of 24VDC and a speed range of 4000 ± 10% RPM, this motor offers consistent and dependable power. It excels in a normal operational temperature range from -20 to +50°C, maintaining efficiency with a rated current of 1.9A. Also, this product seamlessly integrates with all Brushless Click boards™ and those that require BLDC motors with Hall sensors.

Brushless 27 Click accessories image

Used MCU Pins

mikroBUS™ mapper

Current Sense Output
PC0
AN
Reset
PA13
RST
ID COMM
PA4
CS
NC
NC
SCK
NC
NC
MISO
NC
NC
MOSI
Power Supply
3.3V
3.3V
Ground
GND
GND
NC
NC
PWM
Interrupt
PF13
INT
NC
NC
TX
NC
NC
RX
I2C Clock
PF1
SCL
I2C Data
PF0
SDA
Power Supply
5V
5V
round
GND
GND
1

Take a closer look

Click board™ Schematic

Brushless 27 Click Schematic schematic

Step by step

Project assembly

Click Shield for Nucleo-144 accessories 1 image hardware assembly

Start by selecting your development board and Click board™. Begin with the Nucleo 144 with STM32F413ZH MCU as your development board.

Click Shield for Nucleo-144 accessories 1 image hardware assembly
Nucleo 144 with STM32F446ZE MCU front image hardware assembly
Charger 27 Click front image hardware assembly
Prog-cut hardware assembly
Charger 27 Click complete accessories setup image hardware assembly
Nucleo 144 with STM32F413ZH MCU Access MB 1 - upright/background hardware assembly
Necto image step 2 hardware assembly
Necto image step 3 hardware assembly
Necto image step 4 hardware assembly
Necto image step 5 hardware assembly
Necto image step 6 hardware assembly
STM32F413ZH Nucleo MCU Step hardware assembly
Necto No Display image step 8 hardware assembly
Necto image step 9 hardware assembly
Necto image step 10 hardware assembly
Debug Image Necto Step hardware assembly

Track your results in real time

Application Output

1. Application Output - In Debug mode, the 'Application Output' window enables real-time data monitoring, offering direct insight into execution results. Ensure proper data display by configuring the environment correctly using the provided tutorial.

2. UART Terminal - Use the UART Terminal to monitor data transmission via a USB to UART converter, allowing direct communication between the Click board™ and your development system. Configure the baud rate and other serial settings according to your project's requirements to ensure proper functionality. For step-by-step setup instructions, refer to the provided tutorial.

3. Plot Output - The Plot feature offers a powerful way to visualize real-time sensor data, enabling trend analysis, debugging, and comparison of multiple data points. To set it up correctly, follow the provided tutorial, which includes a step-by-step example of using the Plot feature to display Click board™ readings. To use the Plot feature in your code, use the function: plot(*insert_graph_name*, variable_name);. This is a general format, and it is up to the user to replace 'insert_graph_name' with the actual graph name and 'variable_name' with the parameter to be displayed.

Software Support

Library Description

This library contains API for Brushless 27 Click driver.

Key functions:

  • brushless27_set_pins - Brushless 27 set pins function.

  • brushless27_set_trap_com_state - Brushless 27 set trapezoidal com state function.

  • brushless27_drive_motor - Brushless 27 drive motor function.

Open Source

Code example

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

/*!
 * @file main.c
 * @brief Brushless 27 Click example
 *
 * # Description
 * This example demonstrates the use of the Brushless 27 click board by driving the 
 * motor in both directions at different speeds.
 *
 * The demo application is composed of two sections :
 *
 * ## Application Init
 * Initializes the driver and performs the click default configuration.
 *
 * ## Application Task
 * Drives the motor in both directions and changes the motor speed approximately every 2 seconds.
 * The driving direction and speed will be displayed on the USB UART.
 *
 * @author Stefan Ilic
 *
 */

#include "board.h"
#include "log.h"
#include "brushless27.h"

static brushless27_t brushless27;
static log_t logger;

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    brushless27_cfg_t brushless27_cfg;  /**< Click config object. */

    /** 
     * 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.
    brushless27_cfg_setup( &brushless27_cfg );
    BRUSHLESS27_MAP_MIKROBUS( brushless27_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == brushless27_init( &brushless27, &brushless27_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( BRUSHLESS27_ERROR == brushless27_default_cfg ( &brushless27 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

void application_task ( void ) 
{
    log_printf ( &logger, "\r\n Driving motor clockwise \r\n" );
    for ( uint8_t speed = BRUSHLESS27_SPEED_MIN; speed <= BRUSHLESS27_SPEED_MAX; speed += 20 )
    {
        log_printf ( &logger, " Speed gain: %u\r\n", ( uint16_t ) speed );
        if ( BRUSHLESS27_OK != brushless27_drive_motor ( &brushless27, BRUSHLESS27_DIR_CW, speed, 2000 ) )
        {
            log_error ( &logger, " Drive motor " );
        }
    }
    Delay_ms ( 1000 );
    
    log_printf ( &logger, "\r\n Driving motor counter-clockwise \r\n" );
    for ( uint8_t speed = BRUSHLESS27_SPEED_MIN; speed <= BRUSHLESS27_SPEED_MAX; speed += 20 )
    {
        log_printf ( &logger, " Speed gain: %u\r\n", ( uint16_t ) speed );
        if ( BRUSHLESS27_OK != brushless27_drive_motor ( &brushless27, BRUSHLESS27_DIR_CCW, speed, 2000 ) )
        {
            log_error ( &logger, " Drive motor " );
        }
    }
    Delay_ms ( 1000 );
}

int main ( void ) 
{
    application_init( );
    
    for ( ; ; ) 
    {
        application_task( );
    }

    return 0;
}

// ------------------------------------------------------------------------ END

Additional Support

Resources

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