STMicroelectronics STEVAL-IPE005V1

Overview

STEVAL-IPE005V1 from STMicroelectronics is a demonstration and programming board designed to evaluate and develop applications with the STPM01 energy metering ASSP. It integrates an STR710FZ2T6 ARM7-based microcontroller with embedded RTC, 1 Mbyte SRAM interface, optical isolated UART, on-board charge pump for STPM01 register programming, and dedicated SPI bus for direct STPM01 register access.

For engineers reviewing the STEVAL-IPE005V1 datasheet, STEVAL-IPE005V1 pinout, STEVAL-IPE005V1 application, or STEVAL-IPE005V1 equivalent, this board serves as a complete, ready-to-use reference platform for AC power metering evaluation, firmware development, hardware validation, and register-level configuration of the STPM01 in real-world utility and industrial metering systems.

Technical Context

The board implements a full-system energy metering solution centered on the STR710FZ2T6 (144-pin TQFP, 64 MHz ARM7TDMI-S core) interfacing directly with the STPM01 via buffered SPI. The STR710 provides real-time clock functionality, external memory interface (EMI) supporting up to 1 Mbyte SRAM, and dual UARTs - one optically isolated for safe PC communication and one standard for debugging.

Hardware-level features include a dedicated charge pump circuit enabling high-voltage programming of STPM01 OTP registers, ESD protection on I/O lines using ESDA6V1-5W6 devices, and regulated power rails (+5 V, +3.3 V, +1.8 V, and VBKP) generated by LD108533 and LD108518 LDOs from a 9 V DC input.

Key Specifications

Availability

STEVAL-IPE005V1 is available at Aetrix Electronics and suitable for energy meter reference design validation, STPM01 register-level firmware development, and optical-isolation interface testing requiring stable component supply and legacy evaluation board continuity.

Supply support for STEVAL-IPE005V1 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, analog ICs, power management, and sensor solutions for industrial, automotive, and consumer markets.

This board belongs to ST's STEVAL (ST Evaluation) series - purpose-built demonstration platforms that integrate ST ASSPs and MCUs to accelerate time-to-prototype for metering, power conversion, and embedded control applications.

FAQ

Does STEVAL-IPE005V1 support firmware updates for the STR710 microcontroller?

Yes - the board provides full JTAG debug interface (JTMS, JTDI, JTDO, JTCK, nJTRST) compatible with standard ARM debug tools. Boot mode selection via BOOTEN and SW1 allows in-system programming via UART or JTAG, and the STR710's internal bootloader supports firmware updates over UART0 without external programmer.

Can STEVAL-IPE005V1 be used to program STPM01 OTP registers in production environments?

No - the on-board charge pump is intended for engineering evaluation and register configuration during development. STPM01 OTP programming requires precise voltage timing and verification sequences defined in ST's AN2715 application note; this board enables functional validation but is not qualified for production OTP burning.

What is the role of the optical isolation circuit on this board?

The opto-isolated UART (U15/U14 buffers driving HCPL-0631 or equivalent) separates the board's ground domain from the host PC, preventing ground loops and protecting against transient overvoltages during live AC metering tests. It supports standard RS-232 level translation and operates at up to 115.2 kbps.

Is external SRAM required to run the default STPM01 manager software?

No - the STPM01 manager GUI communicates directly with the STR710 over the isolated UART and uses the STR710's internal RAM for runtime operations. The 1 Mbyte SRAM interface is optional and intended for advanced users capturing high-resolution voltage/current waveforms or storing extended calibration tables.