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这是一个非常完整的qpsk调制解调用fpga实现的工程，在工程中已经能够正常使用，使用的quartus ii 开发，使用Verilog语言，文件中还包含了各种滤波器的系数文件，还有matlab仿真文件，整个工程包含从串并变换，相位映射，到成型滤波，中通滤波，cic滤波，调制，再到解调过成的下变频，匹配滤波，载波提取，位定时，判决，整个完整的过程(This is a very complete QPSK modulation and demodulation using FPGA implementation of the project, the project has been able to properly use the Quartus II development, the use of Verilog language, the file also contains the files of various filter coefficients, and MATLAB simulation files, including the entire project from the string and transform, phase mapping, molding in filtering, filtering, CIC filtering, modulation, and demodulation frequency, a matched filter, carrier extraction, timing, judgment, the whole course)

计算机通过串口向开发板发送数据，开发板将数据原样送回。(The computer through the serial port to send data to the development board, development board will be sent back to the data as is.)

485多机通讯的连接方式，主要有总线方式、星形方式等(connection of multi pc communication with 485)

zigbee 工程文件 可以直接运行的串口文件支持cc2530(zigbee hex)

串口大师的源码程序,c语言。学习串口或者是学习c都是很好的例子。(the sourcecode of the comm communication)

为了实现对船舶电站的实 时监控，对PLC编写程序，并在LabVIEW作为监控界面的情况，PLC与工控 机之间采用OPC技术实现通讯，GPC与工控机之间采用Modbus串口协议实现 通讯。最后在实现通讯的的基础上，对本系统进行了试验调试，并开发监控界 面。(In order to achieve real-time monitoring of ship power plant, the PLC programming and control interface as in the case of LabVIEW, PLC and IPC communication between the use of OPC technology, GPC and IPC used between the Modbus serial protocol communication. Finally, to achieve communication based on a test of the system to debug, and develop monitoring interface.)

电能计量芯片AT7022编程范例，可在编程时直接调用(Energy Metering IC AT7022 programming paradigm can be called directly when programming)

多线程串口类及其使用方法，包含完整的CSerialPort类及其使用方法。(A communication class for serial port)

用于在线仪表的 modbus,仅供参考，(online instrument for modbus connection, for information purposes only, thank you)

labview串口通信程序集,挺多程序的(labview serial communication assemblies)