STMicroelectronics STM3220G-JAVA

Overview

STM3220G-JAVA from STMicroelectronics is a Java evaluation kit for STM32 F2-series microcontrollers, centered on the STM3220G-EVAL board and preloaded STM32Java SDK (MicroEJ®-based) with 3-month trial license and 1-hour runtime limit. It supports TFT LCD with touch, Ethernet TCP/IP stack, RS-232 USART, joystick/buttons, 4-color LEDs, and embedded ST-LINK/V2 debugger.

For engineers reviewing the STM3220G-JAVA datasheet, STM3220G-JAVA pinout, STM3220G-JAVA application, or STM3220G-JAVA equivalent, this kit enables rapid prototyping of Java-based embedded HMI, networked control, and real-time UI applications on ARM Cortex-M3 hardware - with Eclipse IDE integration, MicroUI™/MWT widget framework, and SNI/SP native interface bridging.

Technical Context

The STM3220G-JAVA kit integrates the STM32F207IGH6 MCU (120 MHz Cortex-M3, 1 MB Flash, 128 KB RAM) and targets Java execution via MicroEJ® Virtual Execution Environment (VEE), which maps Java bytecode to native C APIs through SNI and SP layers. It delivers full TCP/IP socket support, 240×320 RGB TFT with resistive touch controller, and hardware-accelerated graphics rendering via MicroUI™.

It includes pre-flashed Java demo firmware and provides PC-side simulation and automated test capabilities within Eclipse. The evaluation license enforces hard limits: 90 days from first launch and 3600 seconds cumulative runtime per session - both enforced by MicroEJ® VEE licensing engine.

Key Specifications

Availability

STM3220G-JAVA is available at Aetrix Electronics and suitable for embedded Java prototyping, HMI development, industrial control UI validation, and educational embedded systems labs requiring stable component supply and legacy evaluation platform access.

Supply support for STM3220G-JAVA 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 ICs, sensors, and analog devices for industrial, automotive, and consumer markets.

This kit belongs to ST's STM32 evaluation ecosystem and was developed to accelerate Java-based embedded application development on Cortex-M platforms - specifically targeting HMI-rich, network-connected, and education-focused use cases before MicroEJ® transitioned to newer STM32 families.

FAQ

Is STM3220G-JAVA still in production?

No - STM3220G-JAVA is an obsolete product as confirmed in ST's official data brief (Doc ID 022742 Rev 4, Jan 2013). It is no longer manufactured or supported by STMicroelectronics, though limited legacy stock may be available through authorized distributors and Aetrix Electronics' extended-life channel.

What software tools are required to use this kit?

The kit requires MicroEJ® Studio (Eclipse-based IDE), STM32Java SDK, and ST's STM32CubeMX for peripheral configuration. Java source code must be compiled into MicroEJ® VEE bytecode; standard JDK or Android toolchains are not compatible. USB drivers for ST-LINK/V2 and LAN8720A Ethernet PHY registers are included in the DVD ROM.

Can I deploy commercial applications using the evaluation version?

No - the evaluation version on the included DVD has hard runtime and time limits: 1 hour of cumulative Java execution per session and 90 days from first launch. Commercial deployment requires a licensed MicroEJ® VEE runtime and SDK subscription directly from MicroEJ SA, not STMicroelectronics.

Does this kit support modern Java versions like Java SE 8 or Java ME?

No - STM3220G-JAVA implements MicroEJ®'s proprietary Java subset (MicroEJ Java Platform), based on a minimal J2ME-inspired profile. It does not support Java SE, Java EE, or standard JVM bytecode; only MicroEJ-compiled .vee files execute on the STM32F207IGH6 target.