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说明：  最新超低功耗,超高速 51单片机的资料.非常难得.(a new ultra-low power consumption,ultra high speed 51 signal-chip book.)

该程序实现门锁开关报警功能，电路图包括51单片机、DS12887时钟芯片、LCD显示(The program to achieve lock switch alarm, circuit diagrams, including 51 single, DS12887 clock chips, LCD display)

在单片机应用中，基于keil使用简单的编程来设计简单实用的密码锁。(Microcontroller applications, based on keil use simple programming to design a simple and practical password lock.)

说明：  本文以第一视角讲述了移植FATFS文件系统的过程。其中遇到的困难，解决方案的寻找，原理的讲解，都能带给人许多启发(This paper describes the process of transplanting FATFS file system from the first perspective. The difficulties encountered, the search for solutions, and the explanation of the principles can give people a lot of inspiration.)

Program for 5x7 COMMON CATHODE DOT MATRIX DISPLAY

IC卡读写器软件DEMO，支持ISO14443A、ISO14443B、ISO15693协议， ISO14443A：NTAG203、NTAG210、NTAG212、NTAG213、NTAG215、NTAG216, Ultralight、Ultralight C,MIFARE Classic 1K/4K, Mifare DESFire, MIFARE ProX, FM11RF08、FM11RF32, FM1208、FM1216 ,符合ISO14443A标准的CPU卡. ISO14443B：AT88RF020, SR176、SRI512、SRT512、SRI2K、SRI4K, SGIDC(只读UID),符合ISO14443B标准的CPU卡. ISO15693： I.CODE SLI, Tag-it HI-I Plus, 符合ISO15693标准的卡.(IC Card Reader Writer DEMO，support ISO14443A、ISO14443B、ISO15693 ， ISO14443A：NTAG203、NTAG210、NTAG212、NTAG213、NTAG215、NTAG216, Ultralight、Ultralight C,MIFARE Classic 1K/4K, Mifare DESFire, MIFARE ProX, FM11RF08、FM11RF32, FM1208、FM1216 . ISO14443B：AT88RF020, SR176、SRI512、SRT512、SRI2K、SRI4K, SGIDC. ISO15693： I.CODE SLI, Tag-it HI-I Plus.)

关于单片机的数码管的控制和显示，有许多的附加功能方便，简单(About the digital pipe of the single chip microcomputer control and display, there are many additional functions is convenient, simple )

说明：  Stm8l series adc example

测量频率的低电平保持时间，用来测量汽车喷油嘴喷油的时间，单位ms(The low level holding time of measuring frequency is used to measure the injection time of automobile nozzle, unit Ms.)

正弦信号发生器[2005年电子大赛一等奖].files(sinusoidal signal generator [e-Competition in 2005 won first prize]. Files)