STMicroelectronics STEVAL-IPE023V1

Overview

STEVAL-IPE023V1 from STMicroelectronics is a USB interface evaluation tool designed to bridge STPMxx family energy meter ICs with host PCs. It implements galvanically isolated data acquisition via an STM32F103 microcontroller, supports real-time metrology data streaming, and enables GUI-based configuration and calibration of polyphase energy measurement systems.

For engineers reviewing the STEVAL-IPE023V1 datasheet, STEVAL-IPE023V1 pinout, STEVAL-IPE023V1 application, or STEVAL-IPE023V1 equivalent, this tool serves as a production-ready interface solution for validating STPM01/STPM10/STPM21/STPM22/STPM23-based metering boards in development, certification, and field calibration workflows.

Technical Context

The STEVAL-IPE023V1 functions as a bidirectional USB-to-SPI/UART protocol bridge, translating PC-side USB CDC commands into timing-accurate serial transactions with STPMxx ICs. Its STM32F103C8T6 MCU executes firmware that handles SPI frame formatting, CRC validation, and local buffering of up to 128 samples per channel.

Galvanic isolation (5 kVRMS) is implemented between the metrology board connector (J1) and MCU domain using ADuM1201 dual-channel digital isolators, ensuring safety compliance during high-voltage metering board testing. USB connectivity conforms to USB 2.0 Full-Speed (12 Mbps) with integrated pull-up resistor and ESD protection per IEC 61000-4-2 Level 4.

Key Specifications

Availability

STEVAL-IPE023V1 is available at Aetrix Electronics and suitable for energy meter development, utility-grade calibration labs, and smart grid equipment validation requiring stable component supply and long-term design support.

Supply support for STEVAL-IPE023V1 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, designing and manufacturing microcontrollers, analog ICs, power devices, and sensors for industrial, automotive, and consumer applications.

This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built reference platforms enabling rapid prototyping, functional verification, and regulatory compliance testing of ST's metrology, power, and interface IC families.

FAQ

Does STEVAL-IPE023V1 require external power or drivers?

No external power is needed - it draws 5 V directly from the USB port. Windows 10/11 and Linux systems recognize it as a standard CDC ACM device without proprietary drivers. ST provides the free "STPM GUI" software for configuration, real-time waveform display, and register access.

Which STPMxx variants are supported, and how is compatibility ensured?

It supports STPM01 (single-phase), STPM10 (polyphase with harmonic analysis), and STPM2x series (STPM21/22/23) via configurable SPI timing and register mapping in firmware. All use identical communication protocols (SPI + status handshake), validated against ST's official STPM GUI v3.2+.

Can STEVAL-IPE023V1 be used for production calibration or only development?

Yes - its galvanic isolation, calibrated timing path, and deterministic USB-to-SPI latency make it suitable for production-line calibration of STPMxx-based meters. ST qualifies it for use in Class 0.2 and Class 0.5 meter certification per IEC 62053-21 and IEC 62053-22 standards.

Is the firmware open-source or modifiable?

The base firmware is provided in binary form by ST, but full source code (Keil uVision project, HAL libraries, and USB stack) is available under NDA upon request from ST's technical support. Custom modifications require STM32CubeMX configuration and ST's license for USB Device Class Library.