spcomm3.0

C#串口通讯，modbus协议样例，数据发送接受(C# serial communication, modbus protocol sample, the data sending and receiving)

说明：  控制云台的程序，包含方向、速度，光圈，变倍，聚焦(PTZ control program)

modbus协议,中文文档,讲解十分详细,方便参看查询()

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 )

实现串口的数据采集，真的是一个好程序，可以动态调节运行环境的参数。( Achieve serial data acquisition, Really is a good program, Can dynamically adjust the parameters of the operating environment.)

串口通信模块的资料，有需要的请自行下载，望多多支持。(Serial data communication module, there is a need to download your own, hope a lot of support.)

实用28335设计的串口通信，可以接收远距离的信号，对于初学者很有帮助(28335 Serial Communications Utility designed to receive distant signals, useful for beginners)

简单的串口调试，能够实行发送和接收字符。(Serial easy debugging, it is able to implement send and receive characters.)

串口调试程序源代码，本例作为学习串口编程具有很好的参照作用。(Serial debugger source code, in this case as a learning serial programming with a good reference to the role.)

串行端口的数字输出控制，本程序使用两个按钮使得用户通过按钮控制DTR和RTS的引脚电压。(Serial port of the digital output control, the program allows users to use two buttons through the button control DTR and RTS pin voltage.)