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vb串口程序，写的是一个串口使用例程，对初学者有用，特别是工控类的-vb serial procedures, to write a serial port using the routines, useful for beginners, especially the industrial category

利用新型单片机c8051f020进行的编程，该单片片机具有很高的性价比。-new SCM C8051f020 use the program, the single pieces of the machine has a price.

串口通信PC机应用程序-PC serial communication applications

vc,串口通讯类和用这个类编写的一个例子程序-vc, serial communications and the use of this type of an example of the preparation process

实现函数发生器产生的波形能够在电脑显示器上显示。函数发生器通过GPIB卡与电脑连接并传输数据，电脑上通过LABVIEW软件环境完成与GPIB卡的数据通信。在LABVIEW环境下完成了对虚拟仪器前面板以及后台程序框图的设计与编程。在LABVIEW开发环境下，实现对GPIB控制时，采用VISA模块驱动的方法进行编程。设计结果在LABVIEW环境下的虚拟示波器能够实现示波器的功能，能够显示函数发生器所产生的任意波形。- achieve the waveform can be displayed on the screen of the computer which send out by the function generator. The function generator connect to computer through a GPIB card and transfer data. Labview can be communicated with GPIB card and save data on computer. The virtual instrument front panel design and background process diagram programming can achieved under Labview software environment. The realization of GPIB control, using VISA module-driven approach to program in Labview. The result of the design is that the virtual oscilloscope is able to complete the Real oscilloscope function in Labview.

提供串口通讯参数设置接口，控制方式设置接口，传递和接收数据手段控件是在VC++6.0下开发的-provide serial communication interface parameter setting and control settings interface, transmit and receive data means control of the VC 6.0 development

VB.net的串口通讯支持总是让人觉得有所不足，在使用VB6的MsComm32.ocx时，很多人都会在VB.net的开发中觉得很困扰。这里讲述的VB.net串口通讯类使用native代码，并且它是通API调用实现的，你会发现VB.net的串口通讯就是这么简单。 在说明如何使用这个类前，需要说明的是，本类只是一个VB.net的串口通讯演示，你可能需要根据你的情况修改后使用。-Serial Communication Programs require the support always make people feel inadequate. in the use of VB6 MsComm32.ocx, Many people will Programs require in the development feels very frustrated. Programs require here on the serial communications using native code, and it is the 14th API calls to achieve, and you will find Programs require the serial communication is as simple as that. In explaining how to use this class, there is a need to explain, this is only one type of serial communications Programs require demonstration You may need to change your position after use.

一个关于Com端口调制的程序。包括向Com端口发送数据及从Com端口接受数据两部分。-a Com port on the modulation process. Including Com port and send data from the Com port to accept data in two parts.

MAX232手册 MAX232手册 -MAX232手册MAX232手册MAX232手册

modbus rtu 通讯 使用spcomm控件-modbus rtu protocl use spcomm activX