使用89S52设计的电子钟，C51 编写，本例没有使用1302等时钟芯片，但本例完全具有时钟芯片的功能。比如基本的年月日，时分秒和星期功能，而且还有平闰年的天数...

基于VS1003，C8051F020的MP3，实现语音播放，实时时钟、日历提醒，温度检测、游戏娱乐等-Based on VS1003, C8051F020" s MP3, voice playback, real-time clock, calendar reminders, temperature detection, games and entertainment

基于ARM 的嵌入式系统和SD卡的应用越来越广泛。给出了一种基于S3C2410A的sd卡主控制器的sd卡驱动-ARM-based embedded systems and application of SD cards more and more widely. This paper presents a S3C2410A based on the sd card the sd card host controller driver

用过EMC芯片的朋友都知道EMC的指令系统属于精简指令集（57条指令），这在做一些小程序时是非常方便的，但是如果程序较大，你就会发现，好多精力都被浪费在编写一些相似的指令上了，能否从中解脱出来呢？其实，如果你能善用EMC的宏指令，往往提高写程序的速度，并增加程序的可读性和可维护性-EMC Friend chips used all know EMC directive system are reduced instruction set (57 instructions), which make some small program is very convenient, but if a larger program, you will find that a lot of energy have been wasted in the preparation of some similar instructions on the can extricate themselves from it? In fact, if you can make the best use of EMC macros are often written procedures improve the speed and increase the program readability and maintainability

本程序是显示模块的例程，所接器件为四位八段led数码管，其中PTB0-PTB3 与数码管的位选相连接，PTB4，PTB5与74LS164连接确定你开发板上拨码开 关JP1（图片上的12）的两位和JP4（图片上的9）的5、6、7、8位处于on）， 而其他位处于远离on！-This procedure is the routine display module, the access device for four eight led digital tube, which PTB0-PTB3 bit digital tube and connected to the election, PTB4, PTB5 with 74LS164 sure you connect the development of on-board DIP switch JP1 ( picture on the 12) two and JP4 (picture on the 9) of 5,6,7,8 located at on), while the other located at far away from the on!

通过对双口ram 操作判断硬件正确性，并在相应位置入标志来表示对错。-Dual-port ram through hardware to determine the correctness of the operation, and location in the corresponding entry signs to indicate right or wrong.

用TEA5767 自己动手制作的收音机。效果很好，现将用ATmega32编写的源码上传，供大家参考！-TEA5767 produced by do-it-yourself radio. Well, now with source From ATmega32 prepared for your information!

测试自己的反应时间是多少，用于频率的测试-Test their response time is the number for the frequency of testing

this code is used to learn about atmega 32 controller ,here the example code for blinking program in avr studio ide

实现超声波测距功能的电路硬件和程序 介绍了如何用单片机实现高精度超声波测距的具体电路，并给出了源程序。 -Function of the realization of ultrasonic ranging circuit hardware and procedures describes how to use single chip to achieve high-precision ultrasonic ranging specific circuits, and gives the source code.

uCOS-II_chinesebook，介绍uCOS学习资料-uCOS-II_chinesebook, introducing learning materials uCOS