Master the art of movement and give your projects the finesse they deserve, thanks to TB67S580FNG and STM32F091RC
Infinite steps, one solution: Elevate with our stepper driver
Published Feb 26, 2024
Click board™
Stepper 20 Click
Dev Board
Nucleo-64 with STM32F091RC MCU
Compiler
NECTO Studio
MCU
STM32F091RC
Break free from limitations and explore limitless possibilities in motion control with our intelligent stepper motor driver solution, engineered for excellence.
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Hardware Overview
How does it work?
Stepper 20 Click is based on the TB67S580FNG, a two-phase bipolar stepping motor driver designed to control one bipolar stepping motor from Toshiba Semiconductor. The TB67S580FNG supports a PWM constant-current control drive and incorporates low on-resistance DMOS FETs, delivering a 1.28A maximum current. It can also provide a motor output voltage rating of around 40V and has integrated protection mechanisms such as over-current, over-temperature, and under-voltage lockout for error detection (red LO LED indicator). It supports full-step to 1/32 steps resolution for less motor noise and smoother control, with a built-in regulator that allows the motor to be driven by a single power supply. The current value in the PWM constant-current mode is set by the reference voltage obtained by the MCP1501, a high-precision voltage regulator. Also, the current threshold point of the TB67S580FNG, alongside MCP1501, can be set manually using an onboard trimmer labeled VREF. The TB67S580FNG supports various step resolution configurations through its control signals. These
signals, like step resolution settings, sleep mode, or LO/MO indicators, are controlled through the PCA9538A port expander, which establishes communication with the MCU via the I2C serial interface. In addition to this digital way of setting, these functions can also be selected manually via a multifunctional switch by selecting a particular switch (1,2,3 – Step Resolution Setting; 4 - Decay Mode Control). The PCA9538A also allows choosing the least significant bit (LSB) of its I2C slave address by positioning SMD jumpers labeled as ADDR SEL to an appropriate position marked as 0 and 1, alongside its interrupt feature routed to the INT pin of the mikroBUS™ socket. The CLK clock signal, routed to the default PWM position on the mikroBUS™ socket, shifts the current step and electrical angle of the motor with its every up-edge, while the Enable pin, labeled as EN and routed to the default CS position, controls the state of the output A and B stepping motor drive channels. Besides, all circuits can be stopped using the Sleep function and thus enable power saving mode. A simple DIR pin routed to the
default AN position on the mikroBUS™ socket allows MCU to manage the direction of the stepper motor (clockwise or counterclockwise) while the RST pin initializes an electrical angle in the internal counter to set an initial position. Achieving an initial electrical angle position is indicated via an onboard orange LED labeled as MO. The Stepper 20 Click supports an external power supply for the TB67S580FNG, which can be connected to the input terminal labeled as VM and should be within the range of 8.2V to 44V, while the stepper motor coils can be connected to the terminals labeled as B+, B-, A-, and A+. 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 as a reference for further development.
Features overview
Development board
Nucleo-64 with STM32F091RC MCU offers a cost-effective and adaptable platform for developers to explore new ideas and prototype their designs. This board harnesses the versatility of the STM32 microcontroller, enabling users to select the optimal balance of performance and power consumption for their projects. It accommodates the STM32 microcontroller in the LQFP64 package and includes essential components such as a user LED, which doubles as an ARDUINO® signal, alongside user and reset push-buttons, and a 32.768kHz crystal oscillator for precise timing operations. Designed with expansion and flexibility in mind, the Nucleo-64 board features an ARDUINO® Uno V3 expansion connector and ST morpho extension pin
headers, granting complete access to the STM32's I/Os for comprehensive project integration. Power supply options are adaptable, supporting ST-LINK USB VBUS or external power sources, ensuring adaptability in various development environments. The board also has an on-board ST-LINK debugger/programmer with USB re-enumeration capability, simplifying the programming and debugging process. Moreover, the board is designed to simplify advanced development with its external SMPS for efficient Vcore logic supply, support for USB Device full speed or USB SNK/UFP full speed, and built-in cryptographic features, enhancing both the power efficiency and security of projects. Additional connectivity is
provided through dedicated connectors for external SMPS experimentation, a USB connector for the ST-LINK, and a MIPI® debug connector, expanding the possibilities for hardware interfacing and experimentation. Developers will find extensive support through comprehensive free software libraries and examples, courtesy of the STM32Cube MCU Package. This, combined with compatibility with a wide array of Integrated Development Environments (IDEs), including IAR Embedded Workbench®, MDK-ARM, and STM32CubeIDE, ensures a smooth and efficient development experience, allowing users to fully leverage the capabilities of the Nucleo-64 board in their projects.
Microcontroller Overview
MCU Card / MCU
Architecture
ARM Cortex-M0
MCU Memory (KB)
256
Silicon Vendor
STMicroelectronics
Pin count
64
RAM (Bytes)
32768
You complete me!
Accessories
Click Shield for Nucleo-64 comes equipped with two proprietary mikroBUS™ sockets, allowing all the Click board™ devices to be interfaced with the STM32 Nucleo-64 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. More than 1537 Click boards™, which can be stacked and integrated, are at your disposal. The STM32 Nucleo-64 boards are based on the microcontrollers in 64-pin packages, a 32-bit MCU with an ARM Cortex M4 processor operating at 84MHz, 512Kb Flash, and 96KB SRAM, divided into two regions where the top section represents the ST-Link/V2 debugger and programmer while the bottom section of the board is an actual development board. These boards are controlled and powered conveniently through a USB connection to program and efficiently debug the Nucleo-64 board out of the box, with an additional USB cable connected to the USB mini port on the board. Most of the STM32 microcontroller pins are brought to the IO pins on the left and right edge of the board, which are then connected to two existing mikroBUS™ sockets. 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-64 board with our Click Shield for Nucleo-64, you can access hundreds of Click boards™, working with 3.3V or 5V logic voltage levels.
The 28BYJ-48 is an adaptable 5VDC stepper motor with a compact design, ideal for various applications. It features four phases, a speed variation ratio of 1/64, and a stride angle of 5.625°/64 steps, allowing precise control. The motor operates at a frequency of 100Hz and has a DC resistance of 50Ω ±7% at 25°C. It boasts an idle in-traction frequency greater than 600Hz and an idle out-traction frequency exceeding 1000Hz, ensuring reliability in different scenarios. With a self-positioning torque and in-traction torque both exceeding 34.3mN.m at 120Hz, the 28BYJ-48 offers robust performance. Its friction torque ranges from 600 to 1200 gf.cm, while the pull-in torque is 300 gf.cm. This motor makes a reliable and efficient choice for your stepper motor needs.
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Click board™ Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Nucleo-64 with STM32F091RC MCU as your development board.
Track your results in real time
Application Output via Debug Mode
1. Once the code example is loaded, pressing the "DEBUG" button initiates the build process, programs it on the created setup, and enters Debug mode.
2. After the programming is completed, a header with buttons for various actions within the IDE becomes visible. Clicking the green "PLAY" button starts reading the results achieved with the Click board™. The achieved results are displayed in the Application Output tab.
Software Support
Library Description
This library contains API for Stepper 20 Click driver.
Key functions:
stepper20_set_direction- This function sets the motor direction by setting the DIR pin logic state.stepper20_drive_motor- This function drives the motor for the specific number of steps at the selected speed.stepper20_set_step_mode- This function sets the step mode resolution settings.
Open Source
Code example
This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.
/*!
* @file main.c
* @brief Stepper 20 Click example
*
* # Description
* This example demonstrates the use of the Stepper 20 click board by driving the
* motor in both directions for a desired number of steps.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initializes the driver and performs the click default configuration.
*
* ## Application Task
* Drives the motor clockwise for 200 full steps and then counter-clockiwse for 400 quarter
* steps with 2 seconds delay before changing the direction. All data is being logged on
* the USB UART where you can track the program flow.
*
* @author Stefan Filipovic
*
*/
#include "board.h"
#include "log.h"
#include "stepper20.h"
static stepper20_t stepper20;
static log_t logger;
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
stepper20_cfg_t stepper20_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.
stepper20_cfg_setup( &stepper20_cfg );
STEPPER20_MAP_MIKROBUS( stepper20_cfg, MIKROBUS_1 );
if ( I2C_MASTER_ERROR == stepper20_init( &stepper20, &stepper20_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( STEPPER20_ERROR == stepper20_default_cfg ( &stepper20 ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
void application_task ( void )
{
log_printf ( &logger, " Move 200 full steps clockwise \r\n\n" );
stepper20_set_step_mode ( &stepper20, STEPPER20_MODE_FULL_STEP );
stepper20_set_direction ( &stepper20, STEPPER20_DIR_CW );
stepper20_drive_motor ( &stepper20, 200, STEPPER20_SPEED_FAST );
Delay_ms ( 2000 );
log_printf ( &logger, " Move 400 quarter steps counter-clockwise \r\n\n" );
stepper20_set_step_mode ( &stepper20, STEPPER20_MODE_QUARTER_STEP );
stepper20_set_direction ( &stepper20, STEPPER20_DIR_CCW );
stepper20_drive_motor ( &stepper20, 400, STEPPER20_SPEED_VERY_FAST );
Delay_ms ( 2000 );
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END
