ChibiOS/RT free embedded RTOS Icon

ChibiOS/RT free embedded RTOS

5.0 Stars (24)
302 Downloads (This Week)
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ChibiOS/RT is a free and efficient RTOS designed for deeply embedded applications. It offers a comprehensive set of kernel primitives and supports many architectures: ARM7, Cortex-M0, Cortex-M3, Cortex-M4, PowerPC e200z, STM8, AVR, MSP430, ColdFire, H8S, x86.

ChibiOS/RT free embedded RTOS Web Site


  • Tiny memory footprint, high performance, easily portable, clean and readable.
  • Preemptive kernel, 128 priority levels, reliable static architecture.
  • Kernel support for Semaphores, Mutexes, CondVars, Messages, Event Flags, Mailboxes, Virtual Timers.
  • IRQ abstraction, support for non-OS fast IRQ sources (zero latency buzzword).
  • Support for ARM, ARM-CM0, ARM-CM3, ARM-CM4, PowerPC, STM8, MSP430, AVR, ColdFire, H8S, Linux/Win32/MacOS simulators.
  • HAL component makes applications portable across the supported platforms.
  • HAL support for Port, Serial, ADC, CAN, DAC, EXT, GPT, I2C, I2S, ICU, MAC, MMC, PWM, RTC, SDC, SPI, UART, USB, WDG device driver models.
  • Support for the uIP and lwIP TCP/IP stacks (demo included).
  • Support for the FatFS file system library (demo included).


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User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 5 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 5 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 5 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 5 / 5
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Additional Project Details



Intended Audience

Information Technology, Science/Research, Education, Telecommunications Industry, Developers, Automotive

User Interface

Non-interactive (Daemon), Console/Terminal

Programming Language

C++, Assembly, C



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