STMicroelectronics B-G473E-ZEST1S

Overview

B-G473E-ZEST1S from STMicroelectronics is a motor control Discovery kit centered on the STM32G473QET6 Arm® Cortex®-M4 microcontroller (512 KB Flash, 128 KB SRAM, LQFP128), integrated with STLINK-V3EC debugger/programmer, three user LEDs, push-buttons, ADC potentiometer, and MC V2/Morpho/STDC14/USART connectors for rapid evaluation of ZeST and HSO motor algorithms.

For engineers reviewing the B-G473E-ZEST1S datasheet, B-G473E-ZEST1S pinout, B-G473E-ZEST1S application, or B-G473E-ZEST1S equivalent, this board supports STM32CubeIDE, IAR EWARM, and Keil MDK toolchains; enables direct connection to STEVAL-LVLP01 power boards and X-NUCLEO-IHMxxM1 driver expansions; and delivers preloaded demo firmware for standalone peripheral validation.

Technical Context

The B-G473E-ZEST1S implements a dedicated motor-control development platform built around the STM32G473QET6 MCU - featuring FPU, DSP instructions, advanced timers (HRTIM), analog peripherals (ADCs, comparators, op-amps), and hardware accelerators for motor control math. It hosts STLINK-V3EC with dual Virtual COM ports and USB re-enumeration for seamless debug and serial communication.

It interfaces exclusively via standardized mechanical and electrical connectors: MC connector V2 for primary power/control link to STEVAL-LVLP01, Morpho MC for expansion (e.g., X-NUCLEO-IHM08M1), and STDC14/USART for debug. Power flexibility includes 5 V from ST-LINK VBUS, external Morpho source, or Power board.

Key Specifications

Availability

B-G473E-ZEST1S is available at Aetrix Electronics and suitable for motor control prototyping, industrial servo evaluation, and PMSM/BLDC algorithm development requiring stable component supply, traceable sourcing, and long-term design-in support.

Supply support for B-G473E-ZEST1S 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer applications.

This board belongs to ST's STM32 Discovery ecosystem - purpose-built to accelerate motor control development with validated hardware-software integration, ZeST/HSP algorithm enablement, and seamless compatibility across power stages and driver expansions.

FAQ

What microcontroller is mounted on the B-G473E-ZEST1S board?

The board integrates the STM32G473QET6 - a 32-bit Arm Cortex-M4 MCU with 512 KB Flash, 128 KB SRAM, operating at up to 170 MHz, and featuring HRTIM, multiple ADCs, op-amps, and comparators optimized for real-time motor control.

Does the B-G473E-ZEST1S include an onboard debugger?

Yes - it features the STLINK-V3EC embedded debugger/programmer with JTAG/SWD support, dual Virtual COM ports, and USB re-enumeration capability, eliminating the need for external debug probes during development and testing.

Which motor driver expansion boards are compatible with this kit?

The board supports X-NUCLEO-IHM08M1 (3-phase gate driver), X-NUCLEO-IHM09M1 (dual brush DC), and X-NUCLEO-IHM16M1 (high-voltage PMSM/BLDC) via its Morpho MC connector, enabling flexible topology evaluation without hardware redesign.

Is the STM32 ZeST algorithm included with the board?

The ZeST (Zero Speed Tracking) algorithm is pre-integrated into the board's firmware but available for deployment only to selected users under ST's licensing program; access requires formal request and approval through ST's motor control support channels.