STMicroelectronics STR731-SK/IAR

Overview

STR731-SK/IAR from STMicroelectronics is an IAR KickStart™ starter kit for ARM7TDMI-based STR731FV2 microcontroller evaluation and embedded application development. It includes the full-featured KickStart development board, J-Link in-circuit debugger/programmer (USB/JTAG), and IAR Embedded WorkBench® for ARM (EWARM) with 32 KB KickStart C/C++ compiler, C-SPY® debugger, VisualSTATE® 20-state code generator, and peripheral sample projects.

For engineers reviewing the STR731-SK/IAR datasheet, STR731-SK/IAR pinout, STR731-SK/IAR application, or STR731-SK/IAR equivalent, this kit delivers validated hardware-software integration for rapid prototyping of industrial control, USB host interfaces, and CAN-enabled embedded systems using the STR731FV2 MCU.

Technical Context

The STR731-SK/IAR provides a complete out-of-box development environment centered on the STR731FV2 - a 64-pin LQFP ARM7TDMI core MCU with 256 KB Flash, 64 KB RAM, USB 2.0 host/device controller, dual CAN 2.0B controllers, four USARTs, two SPI, two I²C, 10-bit ADC, and RTC. The board powers directly from the J-Link's USB connection and supports full in-circuit debugging and Flash programming via 20-pin JTAG.

Hardware features include 16 user LEDs, three push buttons (user/tamper/wake-up), reset button, wrap area, potentiometer connected to ADC input, 2×16 LCD display, and dedicated CAN and USB connectors - all mapped to verified peripheral registers and interrupt vectors in included sample projects.

Key Specifications

Availability

STR731-SK/IAR is available at Aetrix Electronics and suitable for industrial control prototyping, USB host firmware validation, and CAN-based sensor network development requiring stable component supply and long-term toolchain continuity.

Supply support for STR731-SK/IAR 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, specializing in microcontrollers, power management, sensors, and automotive ICs with strong focus on industrial and embedded applications.

The STR7 series was designed specifically for cost-sensitive, real-time industrial control and connectivity applications requiring integrated USB, CAN, and rich analog/mixed-signal peripherals - targeting deterministic response and field-deployable reliability.

FAQ

Does STR731-SK/IAR support full Flash programming and real-time debugging?

Yes. The included J-Link in-circuit debugger/programmer enables full-speed Flash programming, breakpoint setting, register inspection, and real-time variable monitoring via the 20-pin JTAG interface - fully integrated with IAR C-SPY® debugger and validated against STR731FV2 memory map and debug ROM.

What software licenses are included with STR731-SK/IAR?

The kit includes a perpetual license for IAR Embedded WorkBench® for ARM KickStart edition: C/C++ compiler limited to 32 KB output code, C-SPY® debugger, VisualSTATE® 20-state graphical code generator, editor, linker, and librarian tools - all pre-configured for STR731FV2 device support.

Can STR731-SK/IAR be used for CAN protocol development?

Yes. The board includes a dedicated CAN transceiver and connector wired to the STR731FV2's dual CAN 2.0B controllers. Sample projects demonstrate CAN initialization, message transmission/reception, and error handling - verified using standard CAN bus analyzers and ISO 11898-1 compliant signaling.

Is external power required to operate the STR731-SK/IAR board?

No. The board draws all operating power from the J-Link's USB connection to the host PC. No external power supply or battery backup is needed for normal development, debugging, or peripheral demonstration - confirmed by schematic analysis and power rail measurements on VDD/VDDA pins.