In unipolar stepper motors, stator windings share a common terminal; the free terminal of each winding is connected to a separate power switch and the current is allowed to flow in one direction through the motor windings. Diodes are used to clamp the voltage across the switches at turn-off. ST’s portfolio features a wide selection of power MOSFETs, diodes and microcontrollers to build a discrete implementation of a unipolar stepper motor driver.
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Combining the X-NUCLEO-IHM01A1 (expansion board based on the L6474) with the NUCLEO-F030R8, (for istance) the user can evaluate a stepper motor drive. It provides an affordable and easy-to-use solution for motor control driving for stepper motors.Solution Components
Part Number Description Status Core Products Price (US$)* Order / DownloadX-NUCLEO-IHM01A1 Key features
- Voltage range from 8 V to 45 V
- Phase current up to 3 Ar.m.s.
- Power OK and fault LEDs
- Advanced current control
- Fully protected power stage
- Up to 1/16 microstepping resolution
- Compatible with Arduino UNO R3 connector
- Compatible with STM32 Nucleo boards
- Suitable for multi-motor solutions
- RoHS compliant
Stepper motor driver expansion board based on L6474 for STM32 Nucleo ActiveL6474PD 12.25 Buy now NUCLEO-F030R8 Key features
- Common features
- STM32 microcontroller in LQFP64 package
- 1 user LED shared with Arduino™
- 1 user and 1 reset push-buttons
- 32.768 kHz crystal oscillator
- Board connectors:Arduino™ Uno V3 expansion connectorST morpho extension pin headers for full access to all STM32 I/Os
- Flexible power-supply options: ST-LINK, USB VBUS or external sources
- On-board ST-LINK debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port and debug port
- Comprehensive free software libraries and examples available with the STM32Cube MCU Package
- Support of a wide choice of Integrated Development Environments (IDEs) including IAR™, Keil® and GCC-based IDEs
- Board-specific features
- External SMPS to generate Vcore logic supply
- 24 MHz HSE
- Board connectors:External SMPS experimentation dedicated connectorMicro-AB or Mini-AB USB connector for the ST-LINKMIPI® debug connector
- Arm® Mbed Enabled™ compliant
STM32 Nucleo-64 development board with STM32F030R8 MCU, supports Arduino and ST morpho connectivity ActiveSTM32F030R8 10.12 Buy now X-CUBE-SPN1 Key features
- Driver layer for complete management of the L6474 microstepping motor driver integrated in the X-NUCLEO-IHM01A1 expansion board
- Examples for controlling up to three stepper motors
- Easy portability across different MCU families, thanks to STM32Cube
- Free, user-friendly license terms
Stepper motor driver software expansion for STM32Cube Active- Part Number Supplier Download X-CUBE-SPN1 ST X-CUBE-SPN1Description:
Stepper motor driver software expansion for STM32CubePrice (US$)*
-Part Number Supplier Download X-CUBE-SPN1 ST
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