改进的SerialPort类单文档实例程序

vc++编写的adu812下载程序源码，多线程，串口通信-vc prepared adu812 download source, multi-threaded, serial communication

从事Profibus的开发人员可以利用改源代码理解profibus协议。添加除通讯以外的代码，很快可以开发出自己的智能节点-engaged in the development staff can use the source code to understand change Profibus agreement. Add except communications code, we will soon be able to develop their own intelligent nodes

本文件给出了如何一步一步实现crc校验。并给出了例子。如果懒得编写。可以直接嵌入程序。-this document is a step-by-step how to achieve crc check. An example is given. If too lazy to prepare. Procedures can be directly embedded.

Ｃ５１单片机ＩＯ模拟串口，简洁明了，非本人写，好程序，大家共享-C51 microcontroller serial IO simulation, concise, non- I write the program, share

本程序为串口调试软件很好的。可以传送TXT文件，和HEX文件，还可以自动发送。-procedures for the Serial debugging software very well. Can send TXT documents, and HEX files and also automatically send.

很好用的串口通信源码程序（采用中断方式）-very good COM programming souce code(Used interrupt function)

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

3.CB_seri.cpp(C++Builder串行异步通信程序)-3.CB_seri.cpp (C Builder asynchronous serial communication program)

要完成串口通信, 在32位模式下, 一般说来有以下四种方法-to complete the serial communications, in 32-bit mode, in general the following four methods :

用TC对计算机的串口进行编程，并作一个简单的串口查询通讯程序。用一条九针的DB-9串口通讯线将计算机的com1口和com2口相连，com1作为接受口，com2作为发送口。-with TC on the serial port of computer programming, and for a simple serial communication program inquiries. Using a 9-pin DB-9 serial communication lines to the computer com1 mouth and COM2 I connected com1 as I accept that I send as COM2.