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avr单片机通过RS485在线程序升级，编译环境IAR,上位机程序使用VC6.0编写。(AVR microcontroller through the RS485 online upgrade program, the compiler environment IAR, the host computer program written in VC6.0.)

读写器与射频卡通信的设计采用RC522射频读写芯片与射频卡进行通信，符合ISO14443规范协议；硬件系统设计中主要有AVR单片机主控模块、电源模块、存储模块、外部时钟模块、LCD模块；软件系统设计采用C语言，遵循模块化和结构化编程模式，设计了射频卡操作程序、软关机与自动关机程序、LCD显示、串行Flash存储器、外部时钟等外部设备驱动程序。所设计的手持式读写器具备对MF1 S50、S70射频卡的读写、实时状态显示、系统在线升级以及关机等功能。(This handset can process the data offline or online, reading and writing from 10 cm far. This handset is low-power, miniature, modular design and so on. This article includes: the communication design between RF card and Reader, hardware system design and software systems design. The communication design between RF card and Reader used to RC522 RF chip control RF cards, in line with ISO14443 standard protocol Hardware system design mainly include AVR microcontroller control modules, power modules, memory modules, external clock modules, LCD modules Software system designed with C programming language, and follow the modular structure of the programming model, and has the RF card operation procedures, soft shutdown and automatic shutdown procedures, LCD display, serial Flash memory, an external clock, and other external device driver Procedures. The handset readers has the MF1 S50, S70 RF card reader function, real-time status display function, the system online update function and so)

基于TI公司的msp430g2553单片机的lcd显示程序，好用(Based on TI company s msp430g2553 MCU LCD display program, absolutely easy to use)

OS_II移植到单片机,网上都是大模式移植,这是我在网站上找到的小模式移植,不知道有用吗?(OS_II transplanted into single-chip, on-line model of graft are large, this is my website found in the small model of transplantation, I do not know useful?)

可以产生幅度、频率可调的方波，频率50hz到1M(Can produce the amplitude, frequency adjustable Fang Bo, frequency of 50Hz to 1M)

Beginning Visual C_ 2012 Programming

小车沿着黑带前进，这事往年一个竞赛题目的程序，对大家有帮助。(The car along the black belt, it past a contest questions purpose program, are helpful to you. )

一个鼠标基于C8051f340为核心的USB鼠标程序，在开发板上已调可用。用Keil打开。(A mouse-based core C8051f340 USB mouse program has been transferred is available on the development board. Opened with Keil.)

AVR单片机 定时器的应用 初始化 以及中断程序(AVR microcontroller timer application initialization and interrupt routine)

说明：  MCU 52 单片机控制程序，主要功能是日历时钟显示函数控制函数的算法。(MCU 52 microcontroller control program, the main function is to control the function of the calendar clock display function, the algorithm.)