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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

5位LED显示驱动芯片14498的显示驱动-five LED display driver chip 14498 display driver

嵌入式ARM开发板实现一个简单WEB服务器的程序

在2210上运行的一个嵌入式web，功能很好。在2210的开发版上运行通过。任019-In 2210 running on an embedded web, a good feature. In 2210 the development version running on through. REN 019

基于三星2410嵌入式平台，实现can总线的驱动及使用，适合搞arm 控制的朋友们-Based on Samsung

摆脱束缚，让无线走进生活之鼠标篇，基于BK2411

1个键有10种功能，带proteus访真文件。-A key with 10 function, with a true file proteus visit.

基于TI公司的温度传感器TMP175，该芯片是基于IIC协议读温度的，CPU是TI的MSP430F149,开发环境为IAR-Based on TI" s temperature sensor TMP175, the chip is based on the IIC protocol read temperature, CPU is TI" s MSP430F149, development environment for the IAR

基于单片机系统的8路数字电压表程序设计问题-SCM system based on eight-way digital voltage meter design procedures

lcd12864点阵液晶屏的测试代码，付有模块的说明文档。-dot-matrix LCD screen lcd12864 test code, payment modules have documentation.