自己编写的CRC校验码

用C实现的gprs modem 上网功能-C achieved with gprs modem Internet access

1122和1123[Braden 1989a, 1989b]。RFC 1122针对链路层、网络层和运输层；RFC 1123针对应用层。这两个RFC对早期重要的RFC文档作了大量的纠正和解释。如果要查看有关协议更详细的细节内容，它们通常是一个入口点。它们列出了协议中关于“必须”、“应该”、“可以”、“不应该”或者“不能”等特性及其实现细节。-1122 and 1123 [Braden 1989a, 1989b]. RFC 1122 for the link layer, network layer and transport layer RFC 1123 for the application layer. The two pairs of significant early RFC documents RFC made a lot of correcting and explanation. If you want to view more details about the details of the agreement, which is usually an entry point. They are listed in the agreement on the " must," " should," " may," " should" or " can not" and other characteristics and implementation details.

STM32F4 485通信实验.rar STM32F4 485通信实验.rar

TC35iGSM收发短信以及调试代码，支持单步调试。-TC35iGSM debugging code to send and receive message, as well as to support the single-step debugging.

简单的PPC红外线通讯，本代码通过PDA红外与手机红外端口连接并发送短消息！-PPC simple infrared communication, the code through the PDA and cell phone infrared infrared port and send short message!

QAM的demo程序，功能很强大，有系统框图，很好理解。对于整个系统的设计帮助很大-matlab qam demo

本程序包括一组子程序和中断程序，通过S7-200自由端口功能来产生从Modbus RTU. 它支持下列Modbus功能：----1.读输出(线圈)----2.读输入(触点)----3.读保持寄存器(V 存储器).----4.读输入寄存器----5.写单路输出----6.写单路保持寄存器----15.写多路输出----16.写多路保持寄存器-this includes a subroutine and the interruption procedure for the adoption of the S7-200 free port functions to generate from the Modbus RTU. It supports the following functions : a Modbus. Reading output (2) coil. Reading input (contact)---- 3. Reading maintain registers (V memory ).---- 4. Reading input register---- 5. write single-output---- 6. write to maintain the single-route Register---- 15. write multiple output---- 16. write multiple maintain registers

三菱FX系列通讯程序,可实现PC机与PLC的通讯,在PC机上监控PLC运行状态-Mitsubishi FX series of communications, which enables PC and PLC communications, the PC monitor PLC Operation

应用背景This document describes how to set up a 6x6 multiple input, multiple output (MIMO) system using NI LabVIEW software and NI USRP™ (Universal Software Radio Peripheral) hardware. After a brief discussion of MIMO, the paper examines the hardware and software based on LabVIEW for a 6x6 MIMO-OFDM system using 4-QAM as modulation scheme. The system presented here is also capable of working as a 2x2 MIMO and 4x4 MIMO system with appropriate parameter configuration.关键技术With MIMO, you can increase wireless system performance without increasing power consumption. It is based on the idea that when using multiple antennas, the transmitted signal progresses through different wireless channels, from the transmitter antennas to the receive antennas, to

串口调试精灵vb源码-serial debugging genie vb source