Skip to main content
  • Products
  • Software evaluation
  • Downloads
  • Free utilities
  • Purchase
  • Silicon Vendors
  • Support
  • About us
  • Blog
  • Forum
  • Search
  • Jobs
  • Newsletter
  • Blog
  • Contact
  • Shop
  • embOS
  • embOS-Ultra Cortex-M Keil MDK

    embOS-Ultra Cortex-M Keil MDK

    embOS-Ultra RTOS port for Cortex-M was developed for and with Keil MDK and can be used on any Cortex-M device.

    Board support packages (BSPs) for different Arm devices and evaluation boards are included.

    Contact us
    Downloads
    Documentation
    SEGGER - RTOS embOS-Classic Product Icon

    Resources and performance data

    Memory usage
    Kernel ROM2100 Bytes
    Kernel RAM128 Bytes
    Task RAM: Task control block48 Bytes
    Task RAM: Minimum stack size88 Bytes
    Timing
    Context switching time249 Cycles (1245 ns with STM32F756 running at 200 MHz)
    Interrupt latency timeZero

    Board support packages

    embOS-Ultra for Cortex-M and Keil MDK may be used on any Cortex-M device. The most recent release includes the following board support packages (BSPs), but further board support packages may easily be created based on this release.

    Do you want us to create the BSP on your behalf? Please contact us.

    CPUEvaluation board
    Microchip (Atmel) SAML11E16Microchip (Atmel) SAML11 XPlainedPro
    NXP LPC55S69NXP LPCXpresso55S69
    ST STM32F407ST STM3240G-Eval
    ST STM32F429ST STM32F429I-Discovery
    ST STM32F756ST STM32F756G-Eval
    ST STM32L073ST STM32L073Z-Eval
    ST STM32L152ST STM32L152RE-Nucleo
    • User manual
    • Online documentation
    • Knowledge Base
    • List of downloads
    • Download for evaluation
    • Release notes
    • Update notification
    • Pricing
    • Support
    • Silicon vendor resources

    Headquarters

    SEGGER Microcontroller GmbH

    Ecolab-Allee 5
    40789 Monheim am Rhein, Germany
    info@segger.com
    Tel.: +49-2173-99312-0
    Fax: +49-2173-99312-28

    Locations

    USA: SEGGER Microcontroller Systems LLC

    Boston area
    101 Suffolk Lane
    Gardner, MA 01440, USA
    us-east@segger.com
    Tel.: +1-978-874-0299
    Fax: +1-978-874-0599

    Silicon Valley
    Milpitas, CA 95035, USA
    us-west@segger.com
    Tel.: +1-408-767-4068

    China: SEGGER Microcontroller China Co., Ltd.

    Room 218, Block A, Dahongqiaoguoji
    No. 133 Xiulian Road
    Minhang District, Shanghai 201199, China
    china@segger.com
    Tel.: +86-133-619-907-60

    ISO 9001
    ISO 27001
    First-class embedded software tools since 1992
    Designed and made in Germany
    • Imprint
    • Disclaimer
    • Code of Conduct
    • Privacy Policy
    © 2026 SEGGER - All rights reserved.