STMicroelectronics STM3240G-EVAL

Overview

STM3240G-EVAL from STMicroelectronics is an evaluation board built around the STM32F407IGH6 32-bit ARM® Cortex®-M4F microcontroller, featuring 16-Mbit SRAM, 3.2" 240×320 TFT LCD with touch screen, dual CAN 2.0 A/B channels, and IEEE 802.3-compliant Ethernet connectivity. It supports boot from Flash, SRAM, or system memory and includes embedded ST-LINK/V2 for JTAG/SWD debugging.

For engineers reviewing the STM3240G-EVAL datasheet, STM3240G-EVAL pinout, STM3240G-EVAL application, or STM3240G-EVAL equivalent, this board serves as a full-featured development platform for evaluating USB-OTG (HS/FS), motor control, smartcard (ISO/IEC 14443 A/B), audio DAC, microSD™, and ST MEMS sensor interfaces in real-world embedded designs.

Technical Context

The board implements the full peripheral suite of the STM32F407IGH6 MCU-including dual CAN controllers routed to a single D-sub connector, USB-OTG HS/FS with Micro-AB ports, and I2S-driven stereo audio DAC with headset jack-enabling concurrent high-speed communication and real-time signal processing.

Hardware resources include dedicated connectors for induction-motor control, ST camera module integration, and ISO/IEC 14443 Type-A/B smartcard support, all accessible via standardized extension headers compatible with daughterboards and wire-wrap prototyping.

Key Specifications

Availability

STM3240G-EVAL is available at Aetrix Electronics and suitable for industrial HMI development, motor-control algorithm validation, embedded Ethernet gateway prototyping, and smartcard-based access control system design requiring stable component supply and long-term hardware reference availability.

Supply support for STM3240G-EVAL 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 specializing in microcontrollers, power management, sensors, and automotive ICs, with R&D centers across Europe, Asia, and the Americas.

This board belongs to ST's STM32 Evaluation Kit product line, designed to accelerate firmware development, peripheral validation, and system-level integration for Cortex-M4-based applications in industrial automation and connected devices.

FAQ

Does STM3240G-EVAL support USB-OTG Host and Device modes simultaneously?

Yes - the board provides separate USB-OTG HS and FS ports with Micro-AB connectors, enabling concurrent host and device operation. The STM32F407IGH6 MCU integrates dual USB OTG controllers with integrated PHYs, allowing independent configuration of each port per application requirements without software arbitration.

What camera modules are compatible with the ST-camera plug-in connector?

The board supports ST's official OV9655 VGA CMOS camera module via its dedicated ST-camera interface (8-bit parallel bus + I²C control). The extension connector follows ST's defined pinout and timing spec for OV9655, and is not compatible with generic MIPI or DVP modules lacking ST firmware alignment.

Is the Ethernet interface fully implemented with PHY and magnetics on-board?

Yes - the board integrates a compliant IEEE 802.3-2002 Ethernet PHY (SMSC LAN8720A) with onboard magnetics and RJ45 connector. No external transceiver or transformer is required; the MAC layer connects directly to the STM32F407IGH6 via RMII interface with precise clock routing and impedance-controlled traces.

Can the STM3240G-EVAL be used for real-time motor control development?

Yes - it includes a dedicated 15-pin induction-motor control connector with PWM outputs, current-sense inputs, and gate-driver enable signals mapped to TIM1/TIM8 advanced timers and ADC1/ADC2. The board supports three-phase inverter control using ST's Motor Control SDK and preloaded demonstration firmware.