可以完成CRC的校验功能,提供16为的循环冗余校验

basic driver for RS232

串口的一个学习程序，希望对大家有个比较大的帮助，或者起到一个参考作用-Serial port of a learning process, in the hope we have a relatively big help, or a reference to the role played

此程序可以帮助你在没有串口的单片机上,实现串口功能,用C51编程,有利于移植!-this program can help you in the absence of SCM Serial, Serial function, C51 program is conducive to transplant!

使用MSCOMM控件主要是通过事件来处理串行口的交互，即当数据到达时，控件的OnComm的事件就会来捕获或处理这些通讯事件。而OnComm事件也可以用来捕获和处理通讯错误。在实际应用中，一个MSCOMM控件就对应一个串行口，所以如果要处理多个串行口的话，必须有相应数量的控件与之对应。-use MSCOMM control mainly through the incident to the serial interaction, that is, when the data arrived, the control of the incident will OnComm to capture or handle these communications incident. OnComm incident which can also be used to capture and handle communication error. In practical application, a corresponding MSCOMM control on a serial port, so if we are to handle multiple serial port, then there must be a corresponding amount of the corresponding controls.

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

从串口读取数据，有两种方法，1、每接收一个EV_RXCHAR,就用ReadFile读一次，这样我觉得太恐怖了。2、接收到一个EV_RXCHAR后，等一定数据量的CPU周期(GetTickCount),再一次性读取缓冲区里的数据。这样做，一般情况下不会有问题，但是，如果数据很多，过了“一定数据量的CPU周期”，还没收完数据怎么办？就会少读数据了。 我用三个线程序来完成串口数据的接收，其实就是第一种方法的变种： 一个侦听EV_RXCHAR,一个对EV_RXCHAR进行分析，其实就是超时判断。如果接收到一个消息后，一段时间没收到下一个EV_RXCHAR，就认为是一个数据包的结束。这个线程就会通知数据接收线程，进行数据接收。一般同一包数据，两个字符之间的时间间隔，应该很小了吧，而两个数据包之间的间隔，应该不会太小吧！（这个地方我不清楚，猜的:( :) ）最后一个线程，是接收数据的。-read data from the serial port, there are two methods, one, each receiving a EV_RXCHAR, on the ReadFile read, I think this vote. 2, received a EV_RXCHAR after a certain volume of data, such as CPU cycles (GetTickCount), and the one-time reader, the data buffer. To do so, under normal circumstances there is no problem, but if many of the data, and after a "certain amount of data the CPU cycles," also confiscated End Data how do? Few will read the data. I used three lines to complete serial data reception, the first method is a variant : an interception EV_RXCHAR, one pair of EV_RXCHAR analys

profibus主站及从站源代码，可以作为主从站开发的借鉴-Profibus master and slave source code can be used as a major development from the point of reference

这是本人所编的串口传数据的程序，经测试能用，希望大家给于指导-This is my series of mass serial data procedures, have been tested can be, I hope to everyone in the guidance

c++builder编写的机器人参数传递上位机软件.-c builder prepared by the robot transmission parameters PC software.

arm下实现的串行口通信程序，功能完好，可以用ads编写-arm under the serial port communication program, function well, can be used to prepare ads