1．在发送端通过一个编码系统对待传数据预先编码，在接收端将传来的数据进行译码（复原）。对于双工信道（即可以双向传输信息的通道），每端都需要一个完整的编/译...

嵌入式系统mcf5272华恒光盘开发板附源代码serial-MCF5272 Embedded System development board华恒CD-ROM attached to the source code serial

AVR入门试验程序，通过本程序，可以让新手仔最短的时间内入门。-AVR entry test procedures, the adoption of this procedure allows novice Aberdeen entry within the shortest possible time.

低频数字式相位测量仪； 此系统由相位测量仪、数字式移相信号发生器和移相网络三部分组成。为使系统更加稳定，使系统整体精度得以保障，本电路两块T89C52为核心控制器件分别控制相位测量、数字式移相信号发生,在数字式移相信号发生部分采用了锁相技术、CPLD等技术, 使输出波形精度大大提高，并可对频率自动校验，提高频率稳定性。-low-frequency digital phase-measuring instrument; This system consists of phase-measuring instrument, digital phase shifting generator and phase three network components. To make the system more stable, the overall accuracy of the system can be protected, the two T89C52 circuit control devices at the core respectively phase measurement control, digital believe the shift occurred, the digital shift occurred some believe that the use of lock-in technologies, such as CPLD technology, the output waveform accuracy greatly improved, and can automatic calibration frequency, frequency stability.

CH451键盘管理及LED显示芯片的C程序，调试通过MCU为LPC2103-CH451 keyboard management and LED display chip C program debugging through the MCU for the LPC2103

C－用LPC932的电表主程序-C-meter with the main program LPC932

threadx操作系统源代码之-threadx operating system"s source code 333333333333333333333

source code for ultrasonic parking control using AT89c51.this is not my program.but i uploaded for the benefit of the people

采用串口与上位机进行通讯的智能卡读卡器的实现，附有专用的上位机软件，支持智能卡T0协议，可以完成智能卡ATR PPS流程，同时支持智能卡的读写。

支持linux2.6和linux2.4的ov511摄像头驱动源码-Linux2.6 and linux2.4 support the ov511 camera driver source

本文档包括arm基础知识和相关编程知识，集合本人多年经验和积累而写成，值得收藏-Arm in this document, including basic knowledge of programming and related knowledge, collection and accumulation of my years of experience and languages, worthy of collection