chuankou

串行通讯的实现（附source code)maxplusII做的(Serial Communication for the (source code) do maxplusII)

串口通信处理的多个线程需要协调运行，一个线程必须等待另一线程结束才能开始，在处理一个线程的同时必须把其余待处理的线程挂起等待，以减少其余待处理线程对CPU的资源占用，正处理的线程一旦处理结束则通过线程间的通信发出信号来击活被挂起的线程中的一个线程进入处理。(Serial communication processing necessary to coordinate multiple threads running, a thread must wait until the end of the beginning of another thread in a thread at the same time deal with the need to deal with the rest of the thread to be suspended waiting for in order to reduce the remaining lines to be processed way of CPU resources occupation, is the thread once the deal by the end of treatment inter-thread communication signal to hit live thread was hang a thread into the handle.)

说明：  产生阶跃突变， 考察系统的动态响应，仿真结果如图(of upper and lower bridge arms is superposed, thus ensuring)

实现串口通信功能。由中断程序调用，实现串口单字节读写的功能。(Realize the serial communication function. By the interruption of the procedure call, the realization of single-byte read and write serial port function.)

一个非常完整的川口通讯源程序，我费了很大功夫才把他找到。(a very complete source Kawaguchi communications, I spent a lot of time and energy only to find him.)

在44B0X芯片上实现Modbus串口通信协议，需要的朋友可以看看。(In 44B0X chip as Modbus serial communication protocol, need friends can see.)

说明：  Wincc使用MSComm控件串口通讯，VB中发送十六进制数据(Wincc uses MSComm control to communicate through serial port and sends hexadecimal data in VB)

实时读取串口数据并可用仪表和曲线进行显示(To read the serial data in real time and available instrumentation and curve display)

通过串口对温湿度检测，实现对温湿度的检测和读取(The temperature and humidity can be detected and read by serial port.)

说明：  用数据库实现串口通讯的源代码，功能比较强大，值得一看。(database using serial communication source code, functions more powerful overseas.)