这是一个单片机上实现T9输入法的程序，使用C语言编写。

开发环境：IAR EW8051 基于ZigBee/802.15.4的CC2430/CC2431 的(精简版)协议栈全部C51源代码,全面支持ZigBeeE FFD RFD、ROUTER、COORD和多种网络拓扑

providing learners for programming with C51, and joining in these web,hopefully finding people with C51 programming so that it will can be studied each other.-providing learners for programming with C 51, and joining in these web, hopefully finding people with C51 programming so that it will can be studied each other.

闪烁灯,用于熟悉了解单片机,初次上手的人用-Flashing lights, used to become familiar with single-chip, first-to-use with

FAT16文件系统原理，较详细的说明文件，很好的资料-FAT16 file system principle, more detailed documentation, very good information

此为友善之臂micro2440板的底板原理图，更新时间是2009年2月28日。-This is a friendly arm on the Backplane board micro2440 schematic, update time is February 28, 2009.

等精度频率计，用Xilinx FPGA和51单片机实现-Precision frequency meter, etc., using Xilinx FPGA and 51 MCU

美国达拉斯高精度温度传感器DS18B20的序列号读取程序。-Dallas Precision Temperature Sensor serial number reader.

485通讯的底层驱动,完成485网络数据收发功能-The bottom of drive 485 to complete the network data transceiver function 485

数字语音回放系统,通过AD采样,单片机算法处理,DA送出放大-Digital voice playback system, through the AD sampling, single-chip microcomputer algorithm treatment, DA Submit to enlarge

一款实现des加密的键盘，符合银行加密标准的键盘-A realization of des encryption keyboard, keyboard encryption standard in line with Bank