MCUXpresso SDK
MCUXpresso SDK is an open-source software development kit for NXP processors and evaluation boards, combining peripheral drivers, middleware, RTOS options, r…
What MCUXpresso SDK is
MCUXpresso SDK is an open-source software development kit for NXP processors and evaluation boards, combining peripheral drivers, middleware, RTOS options, reference software and example applications. Its SDK Builder creates packages for a selected processor or board, with optional software components; downloaded ZIP archives typically range from 500 MB to 2 GB depending on selections. The kit targets NXP general-purpose, crossover and wireless-enabled Arm Cortex-M devices, as well as 32-bit digital signal controllers. It includes FreeRTOS and Zephyr options, connectivity stacks, AI inference libraries, audio, security, graphics, motor-control and file-system components. The SDK is distributed through SDK Builder, GitHub and Open-CMSIS-Packs, with support for MCUXpresso IDE, MCUXpresso for VS Code, IAR Embedded Workbench, Keil MDK and CLI GNU tools. Host platforms include Windows, macOS and Linux. The core project uses BSD-3-Clause, though other SDK projects may have different licenses, and partner software may require a separate license for end products. NXP was incorporated in 2006 and is headquartered in Eindhoven, Netherlands.
Good
- Open-source core project under BSD-3-Clause.
- SDK Builder customizes packages by device and components.
- Available through GitHub and Open-CMSIS-Packs.
- Supports FreeRTOS and Zephyr.
- Compatible with listed IDEs and toolchains.
Watch out
- Downloaded ZIPs typically range from 500 MB to 2 GB.
- Other SDK projects may use different licenses.
- Partner software may need a separate end-product license.
- Quarterly releases have no maintenance.
Who it suits
It suits developers building for NXP microcontrollers and evaluation boards who want configurable drivers, middleware and examples. Users should check component licenses and package size when selecting a download.
Verdict
MCUXpresso SDK combines device-focused drivers, middleware and examples with several distribution and development-tool options. Its package size and differing licenses across components are worth checking before selecting components for a project.
The facts
Each one read from MCUXpresso SDK's own pages, with the date it was checked.
Where it runs
- AI and machine learning
- The eIQ software section lists TensorFlow Lite for Microcontrollers, Glow, DeepViewRT, and Arm CMSIS-NN kernels.checked 3 Oct 2026
- Device focus
- The SDK is designed for NXP general-purpose, crossover, and wireless-enabled Arm Cortex-M devices.checked 2 Oct 2026
- RTOS
- The SDK supports FreeRTOS and includes real-time application frameworks and task management examples.checked 2 Oct 2026
- RTOS support
- The fact sheet lists FreeRTOS and Zephyr among the integrated RTOS options.checked 3 Oct 2026
The company
- Company background
- NXP Semiconductors N.V. was incorporated in the Netherlands in 2006 and is headquartered in Eindhoven, Netherlands.checked 3 Oct 2026
- Founded
- 2006checked 28 Sep 2026
- Headquarters
- Eindhoven, Netherlandschecked 28 Sep 2026
- Maker
- NXP Semiconductors N.V. is headquartered in Eindhoven, Netherlands, and was incorporated in 2006.checked 2 Oct 2026
What it does
- Connectivity
- Listed connectivity technologies include USB Host, Device and OTG; Bluetooth, Wi-Fi, 802.15.4 driver support; NFC; lwIP; and OpenThread.checked 3 Oct 2026
- Customization
- SDK Builder creates downloadable packages based on selected MCUs, evaluation boards, and optional software components.checked 3 Oct 2026
- Custom packages
- The SDK Builder lets users customize and download an SDK for a selected processor or evaluation board.checked 2 Oct 2026
- Delivery options
- The SDK is available through SDK Builder, GitHub repositories, and Open-CMSIS-Packs for IDEs with a pack manager.checked 3 Oct 2026
- Development tools
- NXP lists compatibility with MCUXpresso IDE, MCUXpresso for VS Code, IAR Embedded Workbench, and Keil MDK.checked 3 Oct 2026
- Distribution
- The SDK is available as a GitHub repository for modular development and as downloadable packages for offline development.checked 2 Oct 2026
- Drivers
- Its peripheral drivers are designed for rapid development and optimized for performance and code size.checked 2 Oct 2026
- Integrations
- Supported toolchains include MCUXpresso IDE, MCUXpresso for VS Code, IAR Embedded Workbench, Keil MDK-Arm, and the CLI GNU toolchain.checked 2 Oct 2026
- Licensing
- The core project is under BSD-3-Clause, while other SDK projects may use different licenses; each repository includes an SBOM with license information.checked 2 Oct 2026
- Maintenance
- The documentation says GitHub LTS releases receive back-ported security and severe bug fixes for two years, while quarterly releases have no maintenance and rebase to mainline.checked 2 Oct 2026
- Middleware
- Middleware includes connectivity stacks, AI inference and neural-network libraries, audio processing, security frameworks, graphics, motor control, and file-system components.checked 2 Oct 2026
- Package constraint
- The SDK Builder installation guide says downloaded ZIP archive size typically ranges from 500 MB to 2 GB depending on selections.checked 2 Oct 2026
- Pack managers
- The SDK Builder site says MCUXpresso SDKs are also available on GitHub and through pack managers in IDEs with Open-CMSIS-Packs.checked 2 Oct 2026
- Partner software limit
- NXP says partner software may require a separate partner license for use in end products.checked 3 Oct 2026
- Purpose
- MCUXpresso SDK is a software framework for developing applications for NXP general-purpose, crossover, and wireless-enabled Arm Cortex-M MCUs.checked 3 Oct 2026
- Quality process
- NXP says the SDK is checked with Coverity static analysis tools.checked 3 Oct 2026
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