Color PDS5022S portable digital storage oscilloscope Chinese Manual

89c51的lcd液晶显示代码 ，汉字的显示，仿真通过。-89C51

一般机箱的51单片机温控程序设计，程序较长，在关键部分做了注释。-51 single-chip general chassis temperature control program design, procedures longer to do the key part of the Notes.

本文件是ATMEGA16A的使用说明，内附该单片机内部各个资源的C代码和汇编代码-This document is the use of ATMEGA16A that the single chip containing all the resources within the C code and assembly code

就像在嵌入系统中使用C语言替代汇编一样,在嵌入系统中使用RTOS是大势所趋。原因主要是现在在大多数情况下编程效率比执行效率重要（单片机便宜嘛）。但纵观51的RTOS，keil c51 所带的RTX Full 太大（6k多），且需要外部ram，又无源代码，很多时候不实用。RTX Tiny虽然小（900多字节），但是任务没有优先级和中断管理，也无源代码，也不太实用。而ucosII虽有源代码，但是它太大，又需要外部ram，所有函数又必须是重入函数，用在51这类小片内RAM的单片机上有点勉强。于是，我借鉴ucosII和RTX Tiny编写了Small RTOS 51,虽然它为51系列编写，但是它还是比较容易移植到其它CPU上。 -err

mykey程序原代码-mykey program source code

用8051控制DDS信号发生器，产生1HZ-10MHz的正弦波/三角波/方波-DDS with 8051 control signal generator, producing the 1HZ-10MHz sine/triangle/square wave

There are many different (and often confusing) terms associated with clock-based devices. This application note attempts to clarify these terms, and hence serves as a comprehensive reference on clock terminology. This application note can be divided into two sections. The first section describes and distinguishes between various clock sources available today. The second section defines and distinguishes between various parameters used to describe clocks. This section also provides methods of measuring some of these parameters.

异步串行通信接受单元的设计源程序 异步串行通信接受单元的设计源程序-Asynchronous serial communication module designed to accept source asynchronous serial communication module designed to accept source code

ad0809一些程序，可以当做入门的一些学习资料-ad0809 some procedures can be used as a number of learning data entry

包含了msp430单片机上的ADC、定时器A、定时器B、基础时钟、看门狗的初始化及中断程序。基本示例程序-Msp430 on a single chip that contains the ADC, timer A, Timer B, basic clock, watchdog and interrupt the initialization process.