From 5fb3c76cd4cdbcf362bb6b3a37744c45a869329b Mon Sep 17 00:00:00 2001 From: Bernard Xiong Date: Sat, 4 Jan 2014 23:30:34 +0800 Subject: [PATCH] Update README.md [ci skip] --- README.md | 38 +++++++++++++++++++++++++++++++++++++- 1 file changed, 37 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 8c58a9efd..06502f428 100644 --- a/README.md +++ b/README.md @@ -2,5 +2,41 @@ [![Build Status](https://travis-ci.org/RT-Thread/rt-thread.png)](https://travis-ci.org/RT-Thread/rt-thread) -RT-Thread is an open source real-time operating system for embedded devices. +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](http://www.scons.org) as its building system. Therefore, please install scons and Python 2.7 firstly. + +## Contribution ## + +Thank all of RT-Thread Developers. -- GitLab