rfid 射频卡读写驱动

This file is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTYT; NRF24L01 是NORDIC 公司最近生产的一款无线通信通信芯片，采用FSK 调制，内部集成NORDIC 自己的Enhanced Short Burst 协议。可以实现点对点或是1 对6 的无线通信。无线通信速度可以达到2M（bps）。NORDIC 公司提供通信模块的GERBER 文件，可以直接加工生产。嵌入式工程师或是单片机爱好者只需要为单片机系统预留5 个GPIO，1 个中断输入引脚，就可以很容易实现无线通信的功能，非常适合用来为MCU 系统构建无线通信功能。

中国移动CMMPV4.8和开发文档使用示例对短信开发有很大帮助。中国移动通信CMPP3.0短消息网关开发接口库 V4.8-China Mobile CMMPV4.8 and development of documents using the example of the message the development of much help. China Mobile Communications CMPP3.0 Short Message Gateway Interface Library V4.8

Cypress Semiconductor makes a variety of PLL-based clock generators. This application note provides a set of recommendations to optimize usage of Cypress clock devices in a system. The application note begins with recommended termination techniques for clock generators. Subsequently, power supply filtering and bypassing is discussed. Finally, the application note provides some recommendations on board layout.

NFS版本4协议

数据采集基础知识,数据采集应用案例,虚拟仪器技术PPT文件-Basic knowledge of data acquisition

串口开发比备的手册，AT命令集，可以手把手的教你学会AT-than prepared to develop the manual, AT command set, can teach you hands-AT Institute

此代码是用于DVB系统的信道编码模块，采用（204，188）编码方式，编码后前188个字节是信息位，后16个字节为冗余位。思绪仿真后，通过验证。-This code is used for DVB systems channel coding module (204,188) encoding, after encoding the previous 188 bytes of information, and after the 16-bit byte for redundancy. Simulation thoughts through authentication.

实现了GPRS模块的信息发送，对开发GPRS模块很有帮助。-To achieve the GPRS module to send the information, very helpful for the development of GPRS module.

4dpsk和8dpsk的matlab仿真实现，采用蒙特卡罗仿真法，绘制误码率曲线-the realization of 4dpsk&8dpsk by matlab tool.it use the Monte Carlo methods to draw the graph.

A book describe RTP protocol over the internet. It offers readers detailed technical guidance for designing, implementing, and managing any RTP-based system