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README.md

RT-Thread

Build Status

RT-Thread is an open source real-time operating system for embedded devices from China. RT-Thread RTOS is a scalable real-time operating system: a tiny kernel for ARM Cortex-M0, Cortex-M3/4, or a full feature system in ARM Cortex-A8, ARM Cortex-A9 DualCore etc.

Overview

RT-Thread RTOS like a traditional real-time operating system. The kernel has real-time multi-task scheduling, semaphore, mutex, mail box, message queue etc. However, it has two different things:

  • Device Driver;
  • Component.

The device driver is more like a driver framework, UART, SPI, USB device/host, EMAC, MTD NAND etc. The developer can easyly add low level driver and board configuration, then he/she can use lots of features.

The Component is a software concept upon RT-Thread kernel, for example a shell (finsh shell), virtual file system (FAT, YAFFS, UFFS, ROM/RAM file system etc), TCP/IP protocol stack (lwIP), POSIX interface etc. One component must be a directory under RT-Thread/Components and one component can be descripted by a SConscript file (then be compiled and linked into the system).

Board Support Package

RT-Thread RTOS can support many architectures:

  • ARM Cortex-M0

  • ARM Cortex-M3/M4

  • ARM Cortex-R4

  • ARM Cortex-A8/A9

  • ARM920T/ARM926 etc

  • MIPS

  • x86

  • PowerPC

License

RT-Thread RTOS is released under GPLv2+ license, that means any modification of RT-Thread RTOS should be feed back to community, but it can be friendly used in commercial products when mention your product is using RT-Thread RTOS.

Usage

RT-Thread RTOS uses scons as its building system. Therefore, please install scons and Python 2.7 firstly.

Contribution

Thank all of RT-Thread Developers.