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说明：  它是关于80C51单片机的原理介绍和使用其开发的过程，有具体的实例。(It was introduced on the 80C51 microcontroller and use the principle of its development process, with specific examples.)

一个简单的定时器定时0.5s和1s程序，指在教导新手如何使用定时器(A simple timer timer 0.5s and 1s procedures, means to teach novices how to use the timer)

MSP430F149控制SD卡读写操作，支持FAT16文件系统(The MSP430F149 Control SD card read and write operations to support the FAT16 file system)

以定时的方式接收下位机传送的多帧数据，接收准确，实时性很强(In time to receive the next crew of the multi-frame data transmission, receive accurate, real-time strong)

Profibus-DP从站原理图， VPC3芯片配合STM32F103RBT6的系统，AD6原理图格式。(Profibus-DP slave schematics, VPC3 chip with STM32F103RBT6 system, AD6 schematic format.)

能从SD卡读取MP3文件，并且识别后通过LD3320播放MP3，具体使用只需新建一个.ini系统文件存在sd卡，在里面设置好关键词并且所需播放的MP3文件即可(Read MP3 files from the SD card through the LD3320 play MP3 and identify specific use simply create a new the ini system files sd card exists inside set keywords and required to play MP3 files can)

智能电网综述。提出新的概念和研究方法。及其对目前传统电网的颠覆。(smart power grids。)

VB 开发C51的动态链接库，可以拿来直接用的，(VB-C51 dynamic link library that can be used directly, and)

降压斩波电路仿真，可以加深对dcdc变换的理解(Buck chopper circuit simulation, you can deepen the understanding of the DCDC transform)

充电盒程序 用pic16F1828做主芯片(charger box program)