串行通讯的例子，写的很简单

自己编写的关于火车列尾风压控制的程序,涉及串口,数据库等相关内容-I have written out on the train tail wind pressure control procedures, involving serial, database and other related content

从编程实践的角度详细介绍windows环境下和dos环境下的串口通信的基本方法-programming practice from the perspective of detail windows environment and the environment dos serial communication base this method

XMODEM串口下载代码-XMODEM download code

这是非常有挑战性的题目。对于用户输入的任意一个平面函数f(x)，绘制出其函数曲线。这里最关键的技术难点就是如何实现计算表达式的值。在《编译原理》和《数据结构》的书中，都有对表达式运算方法的论述。说实在的，在编译型计算机语言中实现对用户输入表达式的运算是非常困难的。需要对表达式进行扫描，去括号，按照运算符的优先级生成2叉树，然后遍历该树生成逆波兰表达式，再然后通过栈的方法进行运算。如果在表达式中再包含有函数的话......描述起来都麻烦，更不要说用程序实现了:-(-This is a very challenging issue. For user input an arbitrary planar function f (x), mapping out its function curves. Here the most critical technical problems is how to achieve calculated the value of the expression. "Compiling Principle" and "data structure," the book, have right of expression Operational discussed. Indeed, the computer language compiler to achieve expression of the user input operation is very difficult. Need to scan expression to the brackets, in accordance with the priority Operators Generation 2-ary tree, and then traverse the tree generated reverse Polish expression, and then through the stack approach to computing. If the expression again contains the function described ...... these are trouble, not to mention t

串口调试VB一个不错的源代码 串口中非常有用-a good VB source code is very useful in Serial

关于RS-232 RS-485串口通信的详细资料-On the RS-232 RS-485 serial communication of detailed information

pc端用并口来模拟IIC串口的驱动程序，-programe for IIC host

VB 5.0/6.0的MSComm通信控件提供了一系列标准通信命令的接 口，它允许建立串口连接，可以连接到其他通信设备（如Modem）、 还可以发送命令、进行数据交换以及监视和响应在通信过程中可能 发生的各种错误和事件，从而可以用它创建全双工的、事件驱动 的、高效实用的通信程序。-VB 5.0/6.0 the MSComm control communications for a series of standard communication interface orders, which allow for the establishment of serial link can be connected to other communications equipment (such as modem), and also can send orders, the exchange of information and surveillance and response in the communication process may mistakes that occurred in the incident, which can be used to create full-duplex, event-driven, highly effective and practical communication program.

这是我做的关于考勤机的一些测试程序，请大家积极下载，很有帮助。-This is my appraisal done on the plane of some testing procedures, please download positive and helpful.

Delphi编写的串口测试程序，适合测试计算机串口好坏！-Delphi serial test procedure for the testing of computer Serial good or bad!