总共是三部分凌阳单片机ppt教程，如有学凌阳的可以看看，个人感觉还不错啦！...

高速电路的信号完整性问题，共同学习，有借鉴意义-Based on the Signal Integrality theory, the key problem met during signal processing module design and its solution is given

单片机的同步/异步通信，包括发送部分程序、接收部分程序、主控制程序，针对不同单片机，有着极高的学习意义-Single-chip synchronous/asynchronous communication, including sending some of the procedures, to receive some of the procedures, the main control program, for different single-chip, has a very high significance of the study

脉冲发生测试.此程序为AD9850（DDS）直接数字频率合成器C语言源码。用125M的有源晶振，频率无失真输出可达到40M。-Impulse test. This procedure for the AD9850 (DDS) Direct Digital Frequency Synthesizer C language source code. With 125M active crystal, the frequency output can be achieved without distortion 40M.

这是从网上找来的一个比较典型的PID处理程序，在使用单片机作为控制cpu时，请稍作简化，具体的PID 参数必须由具体对象通过实验确定。-It is found from the Internet a more typical PID process, as a control in the use of single-chip cpu, please make some simplification, the specific parameters of the PID must be determined through experiments at specific audiences.

PC机与RS232串口实验，实现51单片机通过串口进行数据的收发.-PC, and RS232 serial experiments, to achieve 51 microcontroller through the serial port to send and receive data.

c8051f340的usb的使用，包括描述符的设置，usb的标准库文件以usb的初始化-c8051f340 use the usb, including descriptor settings, usb standard library file to usb initialization

开短路检测控制箱(51单片机开发例子子程序)-Open circuit detection control box (51 single-chip development examples Subroutine)

Keil uVision3例证代码NOMOD51 This file is part of the C51 Compiler package Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc. Version 8.01-Keil uVision3 example code NOMOD51This file is part of the C51 Compiler package Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc. Version 8.01

USB2.0原理与工程开发光盘，包含源代码。-USB2.0 principles with the development of CD-ROM project, including the source code.

这个程序用于单片机和无线传输芯片CC2500之间的传送，包括发送，驱动，接收等完全的程序-This procedure for single-chip and wireless transmission between the CC2500 chip, including the transmission, drive, receive a complete program, etc.