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All Projects → stateos → IntrOS

stateos / IntrOS

Licence: MIT license
Free cooperative operating system (OS) for microcontrollers

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Labels

iotavrarmmicrocontrollerembeddedkernelcortex-mosoperating-systemrtoscooperativestm8setjmplongjmp

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IntrOS

Free, simple and tiny cooperative operating system (OS) designed for deeply embedded applications. Target: ARM Cortex-M, STM8, AVR8. It was inspired by the concept of a state machine. Procedure executed by the task (task state) doesn't have to be noreturn-type. It will be executed into an infinite loop. There's a dedicated function for immediate change the task state.

Features

  • kernel can operate in cooperative (non-preemptive) mode only
  • kernel can operate with 16, 32 or 64-bit timer counter
  • kernel can operate in tick-less mode
  • implemented basic protection using MPU (use nullptr, stack overflow)
  • implemented functions for asynchronous communication with unmasked interrupt handlers
  • spin locks
  • once flags
  • events
  • signals with protection mask
  • flags (any, all)
  • barriers
  • semaphores
  • mutexes
  • condition variables
  • read/write locks
  • memory pools
  • raw buffers
  • message queues
  • mailbox queues
  • event queues
  • job queues
  • timers (one-shot, periodic)
  • hierarchical state machine
  • c++ wrapper
  • all documentation is contained within the source files
  • examples and templates are in separate repositories on GitHub
  • archival releases on sourceforge

Targets

ARM CM0(+), CM3, CM4(F), CM7

License

This project is licensed under the terms of MIT License (MIT).

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