ucOS-II应用源码：通过对串口编程来控制GPRS扩展板，实现发送固定内容的短信，接打语音电话等通讯模块的基本功能。利用开发平台的键盘和液晶屏实现人机交互。-ucOS-II application source : Serial Programming right to control the GPRS expansion boards, achieve this fixed content of the messages, then fight voice telephone communi

4×4矩阵式键盘识别技术,在proteus和keil环境下运用汇编和C语言程序编写的，有生产的目标文件。-4 × 4 matrix keyboard recognition technology, the environment, the use of proteus and keil compile and C language programming, there are production of the target file.