arm ads1.2入门教程，学习配置MTK环境，学习gcc,g++指令，你会发现编程很轻松。-Getting Started tutorial arm ads1.2, MTK configuration study environment, study gcc, g++ command, you will find programming very easy.

atmega128的串口通信源程序。编程风格很好，容易读懂。-atmega128 serial communication source. Good programming style, easy to read.