单片机C语言音乐程序的源程序（KeilC代码）

89c51的isp下载程序C语言版源代码。可无编程器在线编程。-89c51 isp download the C language version of the source code. Programming can be no on-line programming.

DDS集成芯片AD9851的应用，用键盘输入任意频率，液晶1602显示，由DDS输出正弦波-DDS chip AD9851 applications, using keyboard input at any frequency, liquid crystal display 1602, by the DDS output sine wave

这是微软的一个USB同步传输例程，虽然它是基于Intel USB开发板的，但是也很值得我们好好的研究。-This is a USB synchronization routines, although it is based on the Intel USB development board, but also worthy of our good look.

非接触式IC卡读写器,Mifare 1非接触式IC卡读写核心模块MCM2-Design of Mifare Touch- Free IC Card Reader

stc89c52rc单片机的应用与配套程序-SCM stc89c52rc application and matching process

周立功的工程师 陈明计 对Small RTOS的移植代码-Zhou Chen, who include engineers on the transplant Small RTOS code

比较详细地列出了各种现行的稳压电源，对于从事模拟开发的工程人员有很大的参考价值-a more detailed list of all the existing power supply, engaged in the development of simulation engineering staff have great reference value

头件的中的#ifndef，这是一个很关键的东西。比如你有两个C文件，这两个C文件都include了同一个头文件。而编译时，这两个C文件要一同编译成一个可运行文件，于是问题来了-The first pieces of# Ifndef, this is a very key things. For example, you have two C file, the two C files include the same file size. And compile-time, the two C files to compile together into a run file, then issue the

优点：中断中只做很少的事情，通常我是在接收中断中post一个信号量，触发别的任务读数据-Advantages: only a small interruption in the things I usually post in the receiving a signal interruption in the amount of time to trigger other mission data

移植成功的单片机uc/os-II代码，效果很好的-Successful transplantation Singlechip uc/os-II code, the effect of good