STMicroelectronics STEVAL-IHM022V1

Overview

STEVAL-IHM022V1 from STMicroelectronics is a dual-motor field-oriented control (FOC) demonstration board built around the STM32F103ZE high-density ARM® Cortex®-M3 microcontroller. It supports simultaneous sensorless or encoder-based PMSM/BLDC motor control using single-shunt current sensing, features a 320×240 TFT LCD with 5-way joystick UI, and integrates CAN 2.0B, RS-232, USB 2.0, and SPI Flash for real-time parameter tuning in industrial motion control evaluation.

For engineers reviewing the STEVAL-IHM022V1 datasheet, STEVAL-IHM022V1 pinout, STEVAL-IHM022V1 application, or STEVAL-IHM022V1 equivalent, this page delivers verified hardware architecture, firmware capabilities, interface compatibility, and integration guidance for dual-axis motor drive prototyping and embedded control validation.

Technical Context

The board implements a dual independent FOC engine using STM32 PMSM Library v2.0, with each motor controlled as a separate entity-enabling distinct speed/torque setpoints, PID coefficients, observer gains, and flux-weakening parameters. Execution timing is synchronized to PWM frequency (up to 20 kHz), with ADC sampling and FOC computation scheduled within strict CPU workload constraints.

Hardware abstraction includes dedicated MC connectors (34-pin) for main/sub motor interfaces, dual RS-232 DB9 ports, CAN transceiver with jumper-selectable high-speed/slope-control mode, and SWD/JTAG debug support. Clocking uses an 8 MHz crystal for MCU core timing and a 32 kHz crystal for RTC functionality.

Key Specifications

Availability

STEVAL-IHM022V1 is available at Aetrix Electronics and suitable for industrial motor drive evaluation, embedded motion control development, and PMSM/BLDC algorithm validation requiring stable component supply and long-term design-in support.

Supply support for STEVAL-IHM022V1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, analog ICs, and automotive-grade solutions.

This board belongs to ST's STEVAL (ST Evaluation) series-designed explicitly to accelerate development of STM32-based motor control systems, emphasizing rapid FOC prototyping, multi-sensor integration, and real-world interface validation.

FAQ

What motors are supported by the STEVAL-IHM022V1?

The board natively supports Shinano 24 VDC, 4-pole BLDC/PMSM motors with Hall sensors and encoders (included in STM3210B-MCKIT), but is configurable for other low-voltage PMSM/BLDC motors via firmware parameter tuning-including pole pair count, resistance, inductance, and back-EMF constant.

Does the board support encoder feedback for both motors?

Yes-jumper configurations (JMP3–JMP10) enable encoder A/B channel reading for both MAIN_MOTOR (via MC_Main) and SUB_MOTOR (via MC_Sub1). Encoder mode replaces sensorless estimation and improves low-speed torque accuracy and startup reliability.

Can the firmware be modified without JTAG hardware?

Yes-the firmware is provided in binary (.bin) format and can be loaded via STM32 system memory bootloader using UART1 and the free Flash Loader Demonstrator tool; no JTAG debugger is required for basic firmware updates or factory reset recovery.

What power stage boards are compatible with STEVAL-IHM022V1?

The board is validated with MB459B and STEVAL-IHM011V1 three-phase inverter power stages, both using MC-compatible 34-pin connectors. Any third-party power board with matching MC pinout and single-shunt current sensing capability can be integrated via hardware configuration and firmware adaptation.