51单片机红外编码解码的源代码，欢迎下载

按键输入1至9任意组和，使用数码管进行显示，另有6个功能键用做开始计数，停止，减数，主要需要熟练使用标志位即可树立理解此代码

MSP430的SPI的通信实现程序，非常繁复 ！-MSP430" s SPI communications implementation process is very complicated!

P18F452芯片的uCosII的移值，详尽的描述了各个接口，以及与芯片的应用，并有例程，可实际使用

Hi All Find The Attachment

可以在三星的ARM处理器s3c44b0上移植的bootLoader源代码-in Samsung ARM processor s3c44b0 transplant bootLoader on source code

主要介绍一种基于Philips公司的MF RC500的射频识别读写器的设计：首先介绍系统的组成以及MF RC500的特性，接着给出天线的设计规范，最后给出MCU 89C52与MF RC500的接口原理图、对Mifare卡操作流程以及及读卡的程序。-Mainly based on the introduction of a Philips company MF RC500 RFID reader design: First of all system components as well as the introduction MF RC500 features, and then given antenna design specifications, and finally gives MCU 89C52 interface with the principle of MF RC500 diagram, the operation flow of the Mifare card and the card reader as well as procedures.

这是支持MF RC500 MIFARE 读写集成电路IC的有关射频设计的应用笔记。意在提供对MIFARE 射频接口（ISO 14443A）所需的理解来设计具体天线应用和匹配电路，为了使无接触MIFARE卡通信有最优表现。本文给出了系统的RF部分背景，以及如何为标准应用设计和调试天线的过程概述。详细说明了两种不同的天线和匹配概念以及它们的设计实例。还描述了完整的调试天线的步骤。作为附件的一部分，有兴趣的读者会发现RF接口的详细理论描述-This is to support reading and writing IC MF RC500 MIFARE RF IC design of the Application Notes. Intended to provide MIFARE RF Interface (ISO 14443A) designed to understand the requirements of specific applications and antenna matching circuits, in order to make contactless MIFARE cards have the best communication performance. In this paper, the RF part of the background of the system, as well as standard application for the design and debugging process of an overview of the antenna. Detailed description of the two different concepts of antennas and matching, as well as their design. Also a complete description of the steps to debug the antenna. As part of the annex, interested readers will find the detailed theory of RF Interface Description

51CPU快速crc检验-51CPU rapid test unicef.org

红外遥控 液晶显示时钟数据 闹钟数据掉电保持 多级菜单 按键消息队列 -Infrared Remote Control LCD alarm clock and data to maintain multi-level data on power-down menu buttons Message Queue

  近几年来，RFID(Radio Frequency Identification)技术在全球掀起热潮，吸引了众多厂商参与相关的技术以及芯片的研究与开发。目前RFID技术正处于迅速上升的时期。在很多实际应用中读写器的识读范围内会同时出现多个标签。这时标签发送的信息就会混叠在一起发生冲突，产生碰撞问题。这就要求RFID系统有一个解决碰撞问题的高效反碰撞算法，在某些苛刻的应用中，要求