一步一步教你建立一个属于自己的AVR的RTOS,个人认为很经典的，可以参考一下,Teach you step by step to build a belongs to the AVR' s own RTOS, personally think that is very classic, you can refer to

建立一个属于自己的AVR的RTOS Proteus6.7 可以用来模拟仿真avr系列的单片机 WinAVR v2.0.5.48 基于GCC AVR的编译环境，好处在于可以在C语言中插入asm的语句 mega8 1K的ram有8K的rom,是开发8位的RTOS的一个理想的器件，并且我对它也比较熟悉-Belong to their own set up an AVR can be used to the RTOS Proteus6.7 simulation avr microcont

RTOS on AVR and this file usefull for everyone that want have multitasking on avr prossecor

《建立一个属于自己的AVR的RTOS》PDF 电子书-Establish a own AVR RTOS