支持zmodem通讯协议的包装类

ABB AIN电表对数据类11解码的例子程序-ABB AIN meter 11 categories of data decoding procedures example

最初学习写单片机串口通讯时的源程序，可以让初学者参考一下！-first learn microcontroller serial communications at the source, so that beginners can take a look!

modbus通信协议中文版，详细介绍了modbus协议，LRC校验，CRC校验等，并给出了C语言例程代码。-modbus conmmunication(chinese)- Modbus protocol,LRC,CRC,how to program with C

pb9com目录：在PowerBuilder 9.0实现COM开发的例子；-pb9com Contents : PowerBuilder 9.0 in the development of the COM achieve example;

串口通讯开发文档资料，四个word文档，详细描述如何串口开发-VC_COMM content

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

基于ARM9和μC／OS-Ⅱ的Modbus通信协议的实现-Based on ARM9 and μC/OS- Ⅱ of the Modbus communication protocol to achieve

上位机和单片机进行串口通信的调试VB源码-PC and MCU for serial port communications VB source code debugging

单片机通用串口uart接收与发送无线信息，实现无线接收。-MCU Universal Serial uart receive and transmit a wireless message, wireless receiver.

一个C＋＋语言编写的程序，看后你不会后悔-a C++ language to develop the procedures that you will not regret it later