comElves

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)

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.)

耀华表通信控件 内置了地磅的串口协议。能自动读取指定的数(Communication control Toledo Electronic loadometer, serial direct source reading program. The source without any Dll, built-in serial port loadometer agreement. Can automatically read the specified binary readings.)

通过串口读取GPS的信息，并解析信息，显示经纬度以及其他的一些主要值，并将该经纬度值转化成大地坐标值(Read through the serial port GPS information and analysis information to display latitude and longitude as well as some other major value, and the latitude and longitude values converted to geodetic coordinates)

调试串口的程序，本程序运行于PC机，是开发串口电路的好帮手。(Debug serial procedures, the program runs on PC, is to develop a good helper serial circuit.)

一个简明的串口通讯例子(a simple and clear example for serial port communication)

串口温度数据采集并实时显示 读串口数据的原理是,只要当有数据向串口发数据来时,计算机就会自动将其数据写到一个特定的缓冲区,我们只要写程序去读那个特定的缓冲区就可以了. 有数据向串口发过来时,程序可以将数据接收到,接收的数据是字符型的,那么将数据转化为数字型的,再将这个数据的大小作为画图的某一个点的纵坐标,横坐标为数据的序号.将这些点用线连起来就是一个曲线图了,这个就是图形显示基本原理. 查看原来的数据的原理也是这样的,不同的地方就是,数据是从文件中来,同样的也是将多个数据分成一个一个的,然后这一个数据的大小就是画图的某一个点的纵坐标,横坐标同样为数据的序号,再将这些点用线连起来就是曲线图. 图形能移动的原理,是我们首先改变的只是数据,图形并没有变,但图形的形式是由这些数据来确定的,当数据发生变化后,我们通过刷新显示区来变化的.(Serial temperature data acquisition and real-time serial data reading the principle is, as long as when a serial data to the data, the computer will automatically writes data to a specific buffer, we can write specific procedures read that the buffer zone would be fine. Serial data to be sent, process data can be received, the receiving of data is the character, then transform data into digital type, and then the size of the data as a drawing of a point Ordinate, the abscissa serial data. these points will be used to link line is a curve, this is the graphic display the basic tenets. View the original data is the same principle, the difference is, the data from the file, the same data also will be divided into a number one, and then this one is the size of the data to draw a certain point )

给出了基于MFC的can232接口的调试程序(MFC-can232 given based debugger interface)

初始化RTCM控制，并且把文件或者串口数据转输出成RTCM格式(RTCM control initialization, and the output files or serial data transfer format to RTCM)

Modbus TCP/IP协议client端源代码(Modbus TCP/IP protocal test)