jserv/mini-arm-os resource

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1255 stars · 256 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A step-by-step educational project that builds a minimal multi-tasking OS kernel for ARM Cortex-M from scratch in C. It progresses from semihosted Hello World through context switching, system calls, and preemptive scheduling, targeting both QEMU (STM32 emulation) and real STM32F429i-Discovery hardware.

Use cases

• learn how to write an OS kernel for ARM from scratch
• understand context switching and system calls on Cortex-M
• study preemptive scheduling and SysTick timer interrupts
• run a minimal multitasking kernel on STM32 in QEMU
• teach embedded systems and kernel internals with hands-on exercises
• port a tiny kernel to real STM32F429i-Discovery hardware

When to choose

• you want a guided, incremental tutorial on bare-metal ARM kernel development
• you need a tiny reference implementation of context switching and preemptive scheduling on Cortex-M
• you are teaching or self-studying embedded OS fundamentals with QEMU or STM32 hardware

When to avoid

• you need a production-ready RTOS with drivers, networking, or file systems
• you target non-ARM or application-processor-class hardware
• you want a supported kernel with long-term maintenance and a clear license

Facets

learning-resource · maturity active

embedded concurrency embedded-systems operating-systems education tutorials embedded cross-platform arm-cortex-m stm32 bare-metal multitasking context-switching preemptive-scheduling qemu-emulation educational-kernel scheduler operating-system-kernel arm qemu linux

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